Claude Code transcript - page 2/4

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     1→package juju
     2→
     3→import (
     4→	"context"
     5→	"fmt"
     6→	"log/slog"
     7→	"path"
     8→	"slices"
     9→	"strings"
    10→	"time"
    11→
    12→	"github.com/canonical/concierge/internal/config"
    13→	"github.com/canonical/concierge/internal/packages"
    14→	"github.com/canonical/concierge/internal/providers"
    15→	"github.com/canonical/concierge/internal/system"
    16→	"github.com/canonical/x-go/strutil/shlex"
    17→	"github.com/sethvargo/go-retry"
    18→	"golang.org/x/sync/errgroup"
    19→	"gopkg.in/yaml.v3"
    20→)
    21→
    22→// NewJujuHandler constructs a new JujuHandler instance.
    23→func NewJujuHandler(config *config.Config, r system.Worker, providers []providers.Provider) *JujuHandler {
    24→	var channel string
    25→	if config.Overrides.JujuChannel != "" {
    26→		channel = config.Overrides.JujuChannel
    27→	} else {
    28→		channel = config.Juju.Channel
    29→	}
    30→
    31→	return &JujuHandler{
    32→		channel:              channel,
    33→		agentVersion:         config.Juju.AgentVersion,
    34→		bootstrapConstraints: config.Juju.BootstrapConstraints,
    35→		modelDefaults:        config.Juju.ModelDefaults,
    36→		extraBootstrapArgs:   config.Juju.ExtraBootstrapArgs,
    37→		providers:            providers,
    38→		system:               r,
    39→		snaps:                []*system.Snap{{Name: "juju", Channel: channel}},
    40→	}
    41→}
    42→
    43→// JujuHandler represents a Juju installation on the system.
    44→type JujuHandler struct {
    45→	channel              string
    46→	agentVersion         string
    47→	bootstrapConstraints map[string]string
    48→	modelDefaults        map[string]string
    49→	extraBootstrapArgs   string
    50→	providers            []providers.Provider
    51→	system               system.Worker
    52→	snaps                []*system.Snap
    53→}
    54→
    55→// Prepare bootstraps Juju on the configured providers.
    56→func (j *JujuHandler) Prepare() error {
    57→	err := j.install()
    58→	if err != nil {
    59→		return fmt.Errorf("failed to install Juju: %w", err)
    60→	}
    61→
    62→	dir := path.Join(".local", "share", "juju")
    63→
    64→	err = j.system.MkHomeSubdirectory(dir)
    65→	if err != nil {
    66→		return fmt.Errorf("failed to create directory '%s': %w", dir, err)
    67→	}
    68→
    69→	err = j.writeCredentials()
    70→	if err != nil {
    71→		return fmt.Errorf("failed to write juju credentials file: %w", err)
    72→	}
    73→
    74→	err = j.bootstrap()
    75→	if err != nil {
    76→		return fmt.Errorf("failed to bootstrap Juju controller: %w", err)
    77→	}
    78→
    79→	return nil
    80→}
    81→
    82→// Restore uninstalls Juju from the system.
    83→func (j *JujuHandler) Restore() error {
    84→	// Kill controllers for credentialed providers.
    85→	for _, p := range j.providers {
    86→		if p.Credentials() == nil {
    87→			continue
    88→		}
    89→
    90→		err := j.killProvider(p)
    91→		if err != nil {
    92→			return err
    93→		}
    94→	}
    95→
    96→	err := j.system.RemoveAllHome(path.Join(".local", "share", "juju"))
    97→	if err != nil {
    98→		return fmt.Errorf("failed to remove '.local/share/juju' subdirectory from user's home directory: %w", err)
    99→	}
   100→
   101→	snapHandler := packages.NewSnapHandler(j.system, j.snaps)
   102→
   103→	err = snapHandler.Restore()
   104→	if err != nil {
   105→		return err
   106→	}
   107→
   108→	slog.Info("Restored Juju")
   109→
   110→	return nil
   111→}
   112→
   113→// install ensures that Juju is installed.
   114→func (j *JujuHandler) install() error {
   115→	snapHandler := packages.NewSnapHandler(j.system, j.snaps)
   116→
   117→	err := snapHandler.Prepare()
   118→	if err != nil {
   119→		return err
   120→	}
   121→
   122→	return nil
   123→}
   124→
   125→// writeCredentials iterates over any provided cloud credentials and authors Juju's
   126→// credentials.yaml
   127→func (j *JujuHandler) writeCredentials() error {
   128→	credentials := map[string]interface{}{"credentials": map[string]interface{}{}}
   129→	addedCredentials := false
   130→
   131→	// Iterate over the providers
   132→	for _, p := range j.providers {
   133→		// If the provider doesn't specify any credentials, move on to the next.
   134→		if p.Credentials() == nil {
   135→			continue
   136→		}
   137→
   138→		// Set the credentials for the provider, under the credential name "concierge".
   139→		credentials["credentials"] = map[string]interface{}{
   140→			p.CloudName(): map[string]interface{}{
   141→				"concierge": p.Credentials(),
   142→			},
   143→		}
   144→		addedCredentials = true
   145→	}
   146→
   147→	// Don't write the file if there are no credentials to add
   148→	if !addedCredentials {
   149→		return nil
   150→	}
   151→
   152→	// Marshall the credentials map and write it to the credentials.yaml file.
   153→	content, err := yaml.Marshal(credentials)
   154→	if err != nil {
   155→		return fmt.Errorf("failed to marshal juju credentials to yaml: %w", err)
   156→	}
   157→
   158→	err = j.system.WriteHomeDirFile(path.Join(".local", "share", "juju", "credentials.yaml"), content)
   159→	if err != nil {
   160→		return fmt.Errorf("failed to write credentials.yaml: %w", err)
   161→	}
   162→
   163→	return nil
   164→}
   165→
   166→// bootstrap iterates over the set of configured providers, and bootstraps each of
   167→// them in parallel with a unique controller name.
   168→func (j *JujuHandler) bootstrap() error {
   169→	var eg errgroup.Group
   170→
   171→	for _, provider := range j.providers {
   172→		eg.Go(func() error { return j.bootstrapProvider(provider) })
   173→	}
   174→
   175→	if err := eg.Wait(); err != nil {
   176→		return err
   177→	}
   178→
   179→	return nil
   180→}
   181→
   182→// bootstrapProvider bootstraps one specific provider.
   183→func (j *JujuHandler) bootstrapProvider(provider providers.Provider) error {
   184→	if !provider.Bootstrap() {
   185→		return nil
   186→	}
   187→
   188→	controllerName := fmt.Sprintf("concierge-%s", provider.Name())
   189→
   190→	bootstrapped, err := j.checkBootstrapped(controllerName)
   191→	if err != nil {
   192→		return fmt.Errorf("error checking bootstrap status for provider '%s'", provider.Name())
   193→	}
   194→
   195→	if bootstrapped {
   196→		slog.Info("Previous Juju controller found", "provider", provider.Name())
   197→		return nil
   198→	}
   199→
   200→	slog.Info("Bootstrapping Juju", "provider", provider.Name())
   201→
   202→	bootstrapArgs := []string{
   203→		"bootstrap",
   204→		provider.CloudName(),
   205→		controllerName,
   206→		"--verbose",
   207→	}
   208→
   209→	// Add agent version if specified.
   210→	if j.agentVersion != "" {
   211→		bootstrapArgs = append(bootstrapArgs, "--agent-version", j.agentVersion)
   212→	}
   213→
   214→	// Combine the global and provider-local model-defaults and bootstrap-constraints.
   215→	modelDefaults := config.MergeMaps(j.modelDefaults, provider.ModelDefaults())
   216→	bootstrapConstraints := config.MergeMaps(j.bootstrapConstraints, provider.BootstrapConstraints())
   217→
   218→	// Iterate over the model-defaults and append them to the bootstrapArgs
   219→	for _, k := range sortedKeys(modelDefaults) {
   220→		bootstrapArgs = append(bootstrapArgs, "--model-default", fmt.Sprintf("%s=%s", k, modelDefaults[k]))
   221→	}
   222→
   223→	// Iterate over the bootstrap-constraints and append them to the bootstrapArgs
   224→	for _, k := range sortedKeys(bootstrapConstraints) {
   225→		bootstrapArgs = append(bootstrapArgs, "--bootstrap-constraints", fmt.Sprintf("%s=%s", k, bootstrapConstraints[k]))
   226→	}
   227→
   228→	if len(j.extraBootstrapArgs) > 0 {
   229→		extraArgs, err := shlex.Split(j.extraBootstrapArgs)
   230→		if err != nil {
   231→			return fmt.Errorf("failed to parse extra-bootstrap-args: %w", err)
   232→		}
   233→		bootstrapArgs = append(bootstrapArgs, extraArgs...)
   234→	}
   235→
   236→	user := j.system.User().Username
   237→
   238→	cmd := system.NewCommandAs(user, provider.GroupName(), "juju", bootstrapArgs)
   239→	_, err = j.system.RunWithRetries(cmd, (5 * time.Minute))
   240→	if err != nil {
   241→		return err
   242→	}
   243→
   244→	cmd = system.NewCommandAs(user, "", "juju", []string{"add-model", "-c", controllerName, "testing"})
   245→	_, err = j.system.Run(cmd)
   246→	if err != nil {
   247→		return err
   248→	}
   249→
   250→	slog.Info("Bootstrapped Juju", "provider", provider.Name())
   251→	return nil
   252→}
   253→
   254→// killProvider destroys the controller for a specific provider.
   255→func (j *JujuHandler) killProvider(provider providers.Provider) error {
   256→	controllerName := fmt.Sprintf("concierge-%s", provider.Name())
   257→
   258→	bootstrapped, err := j.checkBootstrapped(controllerName)
   259→	if err != nil {
   260→		return fmt.Errorf("error checking bootstrap status for provider '%s'", provider.Name())
   261→	}
   262→
   263→	if !bootstrapped {
   264→		slog.Info("No Juju controller found", "provider", provider.Name())
   265→		return nil
   266→	}
   267→
   268→	slog.Info("Destroying Juju controller", "provider", provider.Name())
   269→
   270→	killArgs := []string{"kill-controller", "--verbose", "--no-prompt", controllerName}
   271→
   272→	cmd := system.NewCommandAs(j.system.User().Username, "", "juju", killArgs)
   273→	_, err = j.system.Run(cmd)
   274→	if err != nil {
   275→		return fmt.Errorf("failed to destroy controller: '%s': %w", controllerName, err)
   276→	}
   277→
   278→	slog.Info("Destroyed Juju controller", "provider", provider.Name())
   279→	return nil
   280→}
   281→
   282→// checkBootstrapped checks whether concierge has already been bootstrapped on a given provider.
   283→func (j *JujuHandler) checkBootstrapped(controllerName string) (bool, error) {
   284→	user := j.system.User().Username
   285→	cmd := system.NewCommandAs(user, "", "juju", []string{"show-controller", controllerName})
   286→
   287→	// Configure a back-off for retrying the assessment of controller status.
   288→	backoff := retry.WithMaxRetries(10, retry.NewExponential(1*time.Second))
   289→
   290→	// Run a function, with retries/backoff, to assess whether the controller exists.
   291→	// This retry works around an issue where a given controller may not respond, causing the
   292→	// tool to conclude that the controller doesn't exist, rather than the controller simply
   293→	// not responding.
   294→	return retry.DoValue(context.Background(), backoff, func(ctx context.Context) (bool, error) {
   295→		output, err := j.system.Run(cmd)
   296→		if err != nil {
   297→			// If the error contains "controller <name> not found", it's not actually an error,
   298→			// so don't retry the check. It's important to not check just for "not found", as
   299→			// some intermittent errors include phrases like "pod not found", for example:
   300→			//
   301→			// ERROR opening API connection: ... unable to upgrade connection: pod not found ...
   302→			controllerNotFound := "controller " + controllerName + " not found"
   303→			if strings.Contains(string(output), controllerNotFound) {
   304→				return false, nil
   305→			}
   306→			// Otherwise, retry the check for a bootstrapped controller.
   307→			return false, retry.RetryableError(err)
   308→		}
   309→
   310→		return true, nil
   311→	})
   312→}
   313→
   314→// sortedKeys gets an alphabetically sorted list of keys from a map.
   315→func sortedKeys(m map[string]string) []string {
   316→	keys := make([]string, 0, len(m))
   317→	for k := range m {
   318→		keys = append(keys, k)
   319→	}
   320→	slices.Sort(keys)
   321→	return keys
   322→}
   323→

<system-reminder>
Whenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.
</system-reminder>

File created successfully at: /home/ubuntu/concierge-py/src/concierge/juju/credentials.py

     1→package juju
     2→
     3→import (
     4→	"context"
     5→	"fmt"
     6→	"log/slog"
     7→	"path"
     8→	"slices"
     9→	"strings"
    10→	"time"
    11→
    12→	"github.com/canonical/concierge/internal/config"
    13→	"github.com/canonical/concierge/internal/packages"
    14→	"github.com/canonical/concierge/internal/providers"
    15→	"github.com/canonical/concierge/internal/system"
    16→	"github.com/canonical/x-go/strutil/shlex"
    17→	"github.com/sethvargo/go-retry"
    18→	"golang.org/x/sync/errgroup"
    19→	"gopkg.in/yaml.v3"
    20→)
    21→
    22→// NewJujuHandler constructs a new JujuHandler instance.
    23→func NewJujuHandler(config *config.Config, r system.Worker, providers []providers.Provider) *JujuHandler {
    24→	var channel string
    25→	if config.Overrides.JujuChannel != "" {
    26→		channel = config.Overrides.JujuChannel
    27→	} else {
    28→		channel = config.Juju.Channel
    29→	}
    30→
    31→	return &JujuHandler{
    32→		channel:              channel,
    33→		agentVersion:         config.Juju.AgentVersion,
    34→		bootstrapConstraints: config.Juju.BootstrapConstraints,
    35→		modelDefaults:        config.Juju.ModelDefaults,
    36→		extraBootstrapArgs:   config.Juju.ExtraBootstrapArgs,
    37→		providers:            providers,
    38→		system:               r,
    39→		snaps:                []*system.Snap{{Name: "juju", Channel: channel}},
    40→	}
    41→}
    42→
    43→// JujuHandler represents a Juju installation on the system.
    44→type JujuHandler struct {
    45→	channel              string
    46→	agentVersion         string
    47→	bootstrapConstraints map[string]string
    48→	modelDefaults        map[string]string
    49→	extraBootstrapArgs   string
    50→	providers            []providers.Provider
    51→	system               system.Worker
    52→	snaps                []*system.Snap
    53→}
    54→
    55→// Prepare bootstraps Juju on the configured providers.
    56→func (j *JujuHandler) Prepare() error {
    57→	err := j.install()
    58→	if err != nil {
    59→		return fmt.Errorf("failed to install Juju: %w", err)
    60→	}
    61→
    62→	dir := path.Join(".local", "share", "juju")
    63→
    64→	err = j.system.MkHomeSubdirectory(dir)
    65→	if err != nil {
    66→		return fmt.Errorf("failed to create directory '%s': %w", dir, err)
    67→	}
    68→
    69→	err = j.writeCredentials()
    70→	if err != nil {
    71→		return fmt.Errorf("failed to write juju credentials file: %w", err)
    72→	}
    73→
    74→	err = j.bootstrap()
    75→	if err != nil {
    76→		return fmt.Errorf("failed to bootstrap Juju controller: %w", err)
    77→	}
    78→
    79→	return nil
    80→}
    81→
    82→// Restore uninstalls Juju from the system.
    83→func (j *JujuHandler) Restore() error {
    84→	// Kill controllers for credentialed providers.
    85→	for _, p := range j.providers {
    86→		if p.Credentials() == nil {
    87→			continue
    88→		}
    89→
    90→		err := j.killProvider(p)
    91→		if err != nil {
    92→			return err
    93→		}
    94→	}
    95→
    96→	err := j.system.RemoveAllHome(path.Join(".local", "share", "juju"))
    97→	if err != nil {
    98→		return fmt.Errorf("failed to remove '.local/share/juju' subdirectory from user's home directory: %w", err)
    99→	}
   100→
   101→	snapHandler := packages.NewSnapHandler(j.system, j.snaps)
   102→
   103→	err = snapHandler.Restore()
   104→	if err != nil {
   105→		return err
   106→	}
   107→
   108→	slog.Info("Restored Juju")
   109→
   110→	return nil
   111→}
   112→
   113→// install ensures that Juju is installed.
   114→func (j *JujuHandler) install() error {
   115→	snapHandler := packages.NewSnapHandler(j.system, j.snaps)
   116→
   117→	err := snapHandler.Prepare()
   118→	if err != nil {
   119→		return err
   120→	}
   121→
   122→	return nil
   123→}
   124→
   125→// writeCredentials iterates over any provided cloud credentials and authors Juju's
   126→// credentials.yaml
   127→func (j *JujuHandler) writeCredentials() error {
   128→	credentials := map[string]interface{}{"credentials": map[string]interface{}{}}
   129→	addedCredentials := false
   130→
   131→	// Iterate over the providers
   132→	for _, p := range j.providers {
   133→		// If the provider doesn't specify any credentials, move on to the next.
   134→		if p.Credentials() == nil {
   135→			continue
   136→		}
   137→
   138→		// Set the credentials for the provider, under the credential name "concierge".
   139→		credentials["credentials"] = map[string]interface{}{
   140→			p.CloudName(): map[string]interface{}{
   141→				"concierge": p.Credentials(),
   142→			},
   143→		}
   144→		addedCredentials = true
   145→	}
   146→
   147→	// Don't write the file if there are no credentials to add
   148→	if !addedCredentials {
   149→		return nil
   150→	}
   151→
   152→	// Marshall the credentials map and write it to the credentials.yaml file.
   153→	content, err := yaml.Marshal(credentials)
   154→	if err != nil {
   155→		return fmt.Errorf("failed to marshal juju credentials to yaml: %w", err)
   156→	}
   157→
   158→	err = j.system.WriteHomeDirFile(path.Join(".local", "share", "juju", "credentials.yaml"), content)
   159→	if err != nil {
   160→		return fmt.Errorf("failed to write credentials.yaml: %w", err)
   161→	}
   162→
   163→	return nil
   164→}
   165→
   166→// bootstrap iterates over the set of configured providers, and bootstraps each of
   167→// them in parallel with a unique controller name.
   168→func (j *JujuHandler) bootstrap() error {
   169→	var eg errgroup.Group
   170→
   171→	for _, provider := range j.providers {
   172→		eg.Go(func() error { return j.bootstrapProvider(provider) })
   173→	}
   174→
   175→	if err := eg.Wait(); err != nil {
   176→		return err
   177→	}
   178→
   179→	return nil
   180→}
   181→
   182→// bootstrapProvider bootstraps one specific provider.
   183→func (j *JujuHandler) bootstrapProvider(provider providers.Provider) error {
   184→	if !provider.Bootstrap() {
   185→		return nil
   186→	}
   187→
   188→	controllerName := fmt.Sprintf("concierge-%s", provider.Name())
   189→
   190→	bootstrapped, err := j.checkBootstrapped(controllerName)
   191→	if err != nil {
   192→		return fmt.Errorf("error checking bootstrap status for provider '%s'", provider.Name())
   193→	}
   194→
   195→	if bootstrapped {
   196→		slog.Info("Previous Juju controller found", "provider", provider.Name())
   197→		return nil
   198→	}
   199→
   200→	slog.Info("Bootstrapping Juju", "provider", provider.Name())
   201→
   202→	bootstrapArgs := []string{
   203→		"bootstrap",
   204→		provider.CloudName(),
   205→		controllerName,
   206→		"--verbose",
   207→	}
   208→
   209→	// Add agent version if specified.
   210→	if j.agentVersion != "" {
   211→		bootstrapArgs = append(bootstrapArgs, "--agent-version", j.agentVersion)
   212→	}
   213→
   214→	// Combine the global and provider-local model-defaults and bootstrap-constraints.
   215→	modelDefaults := config.MergeMaps(j.modelDefaults, provider.ModelDefaults())
   216→	bootstrapConstraints := config.MergeMaps(j.bootstrapConstraints, provider.BootstrapConstraints())
   217→
   218→	// Iterate over the model-defaults and append them to the bootstrapArgs
   219→	for _, k := range sortedKeys(modelDefaults) {
   220→		bootstrapArgs = append(bootstrapArgs, "--model-default", fmt.Sprintf("%s=%s", k, modelDefaults[k]))
   221→	}
   222→
   223→	// Iterate over the bootstrap-constraints and append them to the bootstrapArgs
   224→	for _, k := range sortedKeys(bootstrapConstraints) {
   225→		bootstrapArgs = append(bootstrapArgs, "--bootstrap-constraints", fmt.Sprintf("%s=%s", k, bootstrapConstraints[k]))
   226→	}
   227→
   228→	if len(j.extraBootstrapArgs) > 0 {
   229→		extraArgs, err := shlex.Split(j.extraBootstrapArgs)
   230→		if err != nil {
   231→			return fmt.Errorf("failed to parse extra-bootstrap-args: %w", err)
   232→		}
   233→		bootstrapArgs = append(bootstrapArgs, extraArgs...)
   234→	}
   235→
   236→	user := j.system.User().Username
   237→
   238→	cmd := system.NewCommandAs(user, provider.GroupName(), "juju", bootstrapArgs)
   239→	_, err = j.system.RunWithRetries(cmd, (5 * time.Minute))
   240→	if err != nil {
   241→		return err
   242→	}
   243→
   244→	cmd = system.NewCommandAs(user, "", "juju", []string{"add-model", "-c", controllerName, "testing"})
   245→	_, err = j.system.Run(cmd)
   246→	if err != nil {
   247→		return err
   248→	}
   249→
   250→	slog.Info("Bootstrapped Juju", "provider", provider.Name())
   251→	return nil
   252→}
   253→
   254→// killProvider destroys the controller for a specific provider.
   255→func (j *JujuHandler) killProvider(provider providers.Provider) error {
   256→	controllerName := fmt.Sprintf("concierge-%s", provider.Name())
   257→
   258→	bootstrapped, err := j.checkBootstrapped(controllerName)
   259→	if err != nil {
   260→		return fmt.Errorf("error checking bootstrap status for provider '%s'", provider.Name())
   261→	}
   262→
   263→	if !bootstrapped {
   264→		slog.Info("No Juju controller found", "provider", provider.Name())
   265→		return nil
   266→	}
   267→
   268→	slog.Info("Destroying Juju controller", "provider", provider.Name())
   269→
   270→	killArgs := []string{"kill-controller", "--verbose", "--no-prompt", controllerName}
   271→
   272→	cmd := system.NewCommandAs(j.system.User().Username, "", "juju", killArgs)
   273→	_, err = j.system.Run(cmd)
   274→	if err != nil {
   275→		return fmt.Errorf("failed to destroy controller: '%s': %w", controllerName, err)
   276→	}
   277→
   278→	slog.Info("Destroyed Juju controller", "provider", provider.Name())
   279→	return nil
   280→}
   281→
   282→// checkBootstrapped checks whether concierge has already been bootstrapped on a given provider.
   283→func (j *JujuHandler) checkBootstrapped(controllerName string) (bool, error) {
   284→	user := j.system.User().Username
   285→	cmd := system.NewCommandAs(user, "", "juju", []string{"show-controller", controllerName})
   286→
   287→	// Configure a back-off for retrying the assessment of controller status.
   288→	backoff := retry.WithMaxRetries(10, retry.NewExponential(1*time.Second))
   289→
   290→	// Run a function, with retries/backoff, to assess whether the controller exists.
   291→	// This retry works around an issue where a given controller may not respond, causing the
   292→	// tool to conclude that the controller doesn't exist, rather than the controller simply
   293→	// not responding.
   294→	return retry.DoValue(context.Background(), backoff, func(ctx context.Context) (bool, error) {
   295→		output, err := j.system.Run(cmd)
   296→		if err != nil {
   297→			// If the error contains "controller <name> not found", it's not actually an error,
   298→			// so don't retry the check. It's important to not check just for "not found", as
   299→			// some intermittent errors include phrases like "pod not found", for example:
   300→			//
   301→			// ERROR opening API connection: ... unable to upgrade connection: pod not found ...
   302→			controllerNotFound := "controller " + controllerName + " not found"
   303→			if strings.Contains(string(output), controllerNotFound) {
   304→				return false, nil
   305→			}
   306→			// Otherwise, retry the check for a bootstrapped controller.
   307→			return false, retry.RetryableError(err)
   308→		}
   309→
   310→		return true, nil
   311→	})
   312→}
   313→
   314→// sortedKeys gets an alphabetically sorted list of keys from a map.
   315→func sortedKeys(m map[string]string) []string {
   316→	keys := make([]string, 0, len(m))
   317→	for k := range m {
   318→		keys = append(keys, k)
   319→	}
   320→	slices.Sort(keys)
   321→	return keys
   322→}
   323→

<system-reminder>
Whenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.
</system-reminder>

internal/config/util.go:5:func MergeMaps[K string, V interface{}](m1 map[K]V, m2 map[K]V) map[K]V {
internal/config/util.go-6-	combinedMap := map[K]V{}
internal/config/util.go-7-	for k := range m1 {
/home/ubuntu/concierge/internal/config/util.go-8-		combinedMap[k] = m1[k]
/home/ubuntu/concierge/internal/config/util.go-9-	}
internal/config/util.go-10-	for k := range m2 {
/home/ubuntu/concierge/internal/config/util.go-11-		combinedMap[k] = m2[k]
/home/ubuntu/concierge/internal/config/util.go-12-	}
/home/ubuntu/concierge/internal/config/util.go-13-	return combinedMap
/home/ubuntu/concierge/internal/config/util.go-14-}

Todos have been modified successfully. Ensure that you continue to use the todo list to track your progress. Please proceed with the current tasks if applicable

No files found

total 92
drwxrwxr-x  7 ubuntu ubuntu  4096 Dec 12 11:40 .
drwxr-x---  9 ubuntu ubuntu  4096 Dec 13 01:26 ..
drwxrwxr-x  8 ubuntu ubuntu  4096 Dec 13 01:26 .git
drwxrwxr-x  3 ubuntu ubuntu  4096 Dec 12 11:40 .github
-rw-rw-r--  1 ubuntu ubuntu    86 Dec 12 11:40 .gitignore
-rw-rw-r--  1 ubuntu ubuntu  2149 Dec 12 11:40 .goreleaser.yaml
-rw-rw-r--  1 ubuntu ubuntu 10930 Dec 12 11:40 LICENSE
-rw-rw-r--  1 ubuntu ubuntu 14125 Dec 12 11:40 README.md
-rw-rw-r--  1 ubuntu ubuntu  3580 Dec 12 11:40 SECURITY.md
drwxrwxr-x  2 ubuntu ubuntu  4096 Dec 12 11:40 cmd
-rw-rw-r--  1 ubuntu ubuntu  2247 Dec 12 11:40 go.mod
-rw-rw-r--  1 ubuntu ubuntu 12034 Dec 12 11:40 go.sum
drwxrwxr-x  8 ubuntu ubuntu  4096 Dec 12 11:40 internal
-rw-rw-r--  1 ubuntu ubuntu    95 Dec 12 11:40 main.go
-rw-rw-r--  1 ubuntu ubuntu  2787 Dec 12 11:40 spread.yaml
drwxrwxr-x 26 ubuntu ubuntu  4096 Dec 12 11:40 tests

Todos have been modified successfully. Ensure that you continue to use the todo list to track your progress. Please proceed with the current tasks if applicable

/home/ubuntu/.local/bin/uv

Todos have been modified successfully. Ensure that you continue to use the todo list to track your progress. Please proceed with the current tasks if applicable

File created successfully at: /home/ubuntu/concierge/pyproject.toml

Using Python 3.12.3 environment at: /usr
error: The interpreter at /usr is externally managed, and indicates the following:

  To install Python packages system-wide, try apt install
  python3-xyz, where xyz is the package you are trying to
  install.

  If you wish to install a non-Debian-packaged Python package,
  create a virtual environment using python3 -m venv path/to/venv.
  Then use path/to/venv/bin/python and path/to/venv/bin/pip. Make
  sure you have python3-full installed.

  If you wish to install a non-Debian packaged Python application,
  it may be easiest to use pipx install xyz, which will manage a
  virtual environment for you. Make sure you have pipx installed.

  See /usr/share/doc/python3.12/README.venv for more information.

hint: Virtual environments were not considered due to the `--system` flag

Using CPython 3.14.2
Creating virtual environment at: .venv
Activate with: source .venv/bin/activate

 + frozenlist==1.8.0
 + idna==3.11
 + iniconfig==2.3.0
 + librt==0.7.3
 + markdown-it-py==4.0.0
 + mdurl==0.1.2
 + multidict==6.7.0
 + mypy==1.19.0
 + mypy-extensions==1.1.0
 + packaging==25.0
 + pathspec==0.12.1
 + pluggy==1.6.0
 + propcache==0.4.1
 + pydantic==2.12.5
 + pydantic-core==2.41.5
 + pygments==2.19.2
 + pytest==9.0.2
 + pytest-asyncio==1.3.0
 + pytest-cov==7.0.0
 + pyyaml==6.0.3
 + rich==14.2.0
 + ruff==0.14.9
 + shellingham==1.5.4
 + structlog==25.5.0
 + tenacity==9.1.2
 + typer==0.20.0
 + typing-extensions==4.15.0
 + typing-inspection==0.4.2
 + yarl==1.22.0
warning: The package `typer==0.20.0` does not have an extra named `all`

Todos have been modified successfully. Ensure that you continue to use the todo list to track your progress. Please proceed with the current tasks if applicable

     1→package config
     2→
     3→import (
     4→	"bytes"
     5→	"errors"
     6→	"fmt"
     7→	"log/slog"
     8→	"os"
     9→	"strings"
    10→
    11→	"github.com/spf13/cobra"
    12→	"github.com/spf13/pflag"
    13→	"github.com/spf13/viper"
    14→)
    15→
    16→func init() {
    17→	viper.SetConfigType("yaml")
    18→	viper.SetConfigName("concierge")
    19→	viper.AddConfigPath(".")
    20→
    21→	viper.SetEnvPrefix("CONCIERGE")
    22→	viper.SetEnvKeyReplacer(strings.NewReplacer("-", "_"))
    23→	viper.AutomaticEnv()
    24→}
    25→
    26→func NewConfig(cmd *cobra.Command, flags *pflag.FlagSet) (*Config, error) {
    27→	var conf *Config
    28→	var err error
    29→
    30→	bindFlags(cmd)
    31→
    32→	// Grab the relevant command line flags
    33→	configFile, _ := flags.GetString("config")
    34→	preset, _ := flags.GetString("preset")
    35→	verbose, _ := flags.GetBool("verbose")
    36→	trace, _ := flags.GetBool("trace")
    37→
    38→	if len(preset) > 0 {
    39→		conf, err = Preset(preset)
    40→		if err != nil {
    41→			return nil, fmt.Errorf("failed to load configuration preset: %w", err)
    42→		}
    43→		slog.Info("Preset selected", "preset", preset)
    44→	} else {
    45→		// Load and validate the configuration file
    46→		conf, err = parseConfig(configFile)
    47→		if err != nil {
    48→			return nil, fmt.Errorf("failed to parse configuration: %w", err)
    49→		}
    50→	}
    51→
    52→	conf.Overrides = getOverrides(flags)
    53→	conf.Verbose = verbose
    54→	conf.Trace = trace
    55→
    56→	return conf, nil
    57→}
    58→
    59→// parseConfig locates and parses the concierge configuration.
    60→func parseConfig(configFile string) (*Config, error) {
    61→	// If the user specified a path to the config file manually, load that file
    62→	if len(configFile) > 0 {
    63→		b, err := os.ReadFile(configFile)
    64→		if err != nil {
    65→			return nil, errors.New("unable to read specified config file")
    66→		}
    67→
    68→		err = viper.ReadConfig(bytes.NewBuffer(b))
    69→		if err != nil {
    70→			return nil, errors.New("error parsing concierge config file")
    71→		}
    72→
    73→		slog.Info("Configuration file found", "path", configFile)
    74→	} else {
    75→		// Otherwise check in the default locations
    76→		err := viper.ReadInConfig()
    77→		if err != nil {
    78→			if strings.Contains(err.Error(), "Not Found") {
    79→				slog.Info("No config file found, falling back to 'dev' preset")
    80→
    81→				conf, err := Preset("dev")
    82→				if err != nil {
    83→					return nil, fmt.Errorf("failed to load configuration preset: %w", err)
    84→				}
    85→
    86→				return conf, nil
    87→			}
    88→
    89→			return nil, errors.New("error parsing concierge config file")
    90→		}
    91→
    92→		slog.Info("Configuration file found", "path", "concierge.yaml")
    93→	}
    94→
    95→	conf := &Config{}
    96→	err := viper.Unmarshal(conf)
    97→	if err != nil {
    98→		return nil, errors.New("error parsing concierge config file")
    99→	}
   100→
   101→	return conf, nil
   102→}
   103→
   104→// getOverrides parses the cli flags related to config overrides and returns a constructed
   105→// ConfigOverrides struct.
   106→func getOverrides(flags *pflag.FlagSet) ConfigOverrides {
   107→	return ConfigOverrides{
   108→		DisableJuju:       envOrFlagBool(flags, "disable-juju"),
   109→		JujuChannel:       envOrFlagString(flags, "juju-channel"),
   110→		K8sChannel:        envOrFlagString(flags, "k8s-channel"),
   111→		MicroK8sChannel:   envOrFlagString(flags, "microk8s-channel"),
   112→		LXDChannel:        envOrFlagString(flags, "lxd-channel"),
   113→		CharmcraftChannel: envOrFlagString(flags, "charmcraft-channel"),
   114→		SnapcraftChannel:  envOrFlagString(flags, "snapcraft-channel"),
   115→		RockcraftChannel:  envOrFlagString(flags, "rockcraft-channel"),
   116→
   117→		GoogleCredentialFile: envOrFlagString(flags, "google-credential-file"),
   118→
   119→		ExtraSnaps: envOrFlagSlice(flags, "extra-snaps"),
   120→		ExtraDebs:  envOrFlagSlice(flags, "extra-debs"),
   121→	}
   122→}
   123→
   124→// envOrFlagBool returns a boolean config value set from env var or flag, priority on env var.
   125→func envOrFlagBool(flags *pflag.FlagSet, key string) bool {
   126→	value, _ := flags.GetBool(key)
   127→	if v := viper.GetBool(key); v {
   128→		value = v
   129→	}
   130→	return value
   131→}
   132→
   133→// envOrFlagString returns a string config value set from env var or flag, priority on env var.
   134→func envOrFlagString(flags *pflag.FlagSet, key string) string {
   135→	value, _ := flags.GetString(key)
   136→	if v := viper.GetString(key); v != "" {
   137→		value = v
   138→	}
   139→	return value
   140→}
   141→
   142→// envOrFlagSlice returns a slice config value set from env var or flag, priority on env var.
   143→func envOrFlagSlice(flags *pflag.FlagSet, key string) []string {
   144→	value, _ := flags.GetStringSlice(key)
   145→
   146→	if v := viper.GetString(key); v != "" {
   147→		parts := strings.Split(v, ",")
   148→		for _, p := range parts {
   149→			extraValue := p
   150→			value = append(value, extraValue)
   151→		}
   152→	}
   153→
   154→	return value
   155→}
   156→
   157→// bindFlags ensures that for each flag defined, the equivalent env var is also check for a value.
   158→func bindFlags(cmd *cobra.Command) {
   159→	cmd.Flags().VisitAll(func(f *pflag.Flag) {
   160→		// Environment variables can't have dashes in them, so bind them to their equivalent keys with underscores
   161→		if strings.Contains(f.Name, "-") {
   162→			viper.BindEnv(f.Name, flagToEnvVar(f.Name))
   163→		}
   164→
   165→		// Apply the viper config value to the flag when the flag is not set and viper has a value
   166→		if !f.Changed && viper.IsSet(f.Name) {
   167→			val := viper.Get(f.Name)
   168→			slog.Debug("Override detected in environment", "override", f.Name, "value", fmt.Sprintf("%v", val), "env_var", flagToEnvVar(f.Name))
   169→			cmd.Flags().Set(f.Name, fmt.Sprintf("%v", val))
   170→		}
   171→	})
   172→}
   173→
   174→// flagToEnvVar converts command flag name to equivalent environment variable name
   175→func flagToEnvVar(flag string) string {
   176→	envVarSuffix := strings.ToUpper(strings.ReplaceAll(flag, "-", "_"))
   177→	return fmt.Sprintf("%s_%s", viper.GetEnvPrefix(), envVarSuffix)
   178→}
   179→

<system-reminder>
Whenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.
</system-reminder>

/home/ubuntu/concierge/internal/config/presets.go
/home/ubuntu/concierge/internal/config/overrides.go
/home/ubuntu/concierge/internal/config/config_test.go
/home/ubuntu/concierge/internal/config/config.go
/home/ubuntu/concierge/internal/config/config_format.go
/home/ubuntu/concierge/internal/config/util.go

     1→package config
     2→
     3→// Config represents concierge's configuration format.
     4→type Config struct {
     5→	Juju      jujuConfig     `mapstructure:"juju"`
     6→	Providers providerConfig `mapstructure:"providers"`
     7→	Host      hostConfig     `mapstructure:"host"`
     8→
     9→	// The following are added at runtime according to CLI flags
    10→	Overrides ConfigOverrides `mapstructure:"overrides"`
    11→	Status    Status          `mapstructure:"status"`
    12→	Verbose   bool            `mapstructure:"verbose"`
    13→	Trace     bool            `mapstructure:"trace"`
    14→}
    15→
    16→// Status represents the status of concierge on a given machine.
    17→type Status int
    18→
    19→const (
    20→	Provisioning Status = iota
    21→	Succeeded
    22→	Failed
    23→)
    24→
    25→// String returns a string representation of a given concierge status.
    26→func (s Status) String() string {
    27→	return [...]string{"provisioning", "succeeded", "failed"}[s]
    28→}
    29→
    30→// jujuConfig represents the configuration for juju, including the desired version,
    31→// and defaults/constraints for the bootstrap process.
    32→type jujuConfig struct {
    33→	// Optionally disable the installation of Juju
    34→	Disable bool `mapstructure:"disable"`
    35→	// The Snap Store channel from which to install Juju
    36→	Channel string `mapstructure:"channel"`
    37→	// The Juju agent version to use during bootstrap
    38→	AgentVersion string `mapstructure:"agent-version"`
    39→	// The set of model-defaults to be passed to Juju during bootstrap
    40→	ModelDefaults map[string]string `mapstructure:"model-defaults"`
    41→	// The set of bootstrap constraints to be passed to Juju
    42→	BootstrapConstraints map[string]string `mapstructure:"bootstrap-constraints"`
    43→	// Additional arbitrary arguments to be appended to the bootstrap command
    44→	ExtraBootstrapArgs string `mapstructure:"extra-bootstrap-args"`
    45→}
    46→
    47→// providerConfig represents the set of providers to be configured and bootstrapped.
    48→type providerConfig struct {
    49→	K8s      k8sConfig      `mapstructure:"k8s"`
    50→	LXD      lxdConfig      `mapstructure:"lxd"`
    51→	Google   googleConfig   `mapstructure:"google"`
    52→	MicroK8s microk8sConfig `mapstructure:"microk8s"`
    53→}
    54→
    55→// lxdConfig represents how LXD should be configured on the host.
    56→type lxdConfig struct {
    57→	Enable               bool              `mapstructure:"enable"`
    58→	Bootstrap            bool              `mapstructure:"bootstrap"`
    59→	Channel              string            `mapstructure:"channel"`
    60→	ModelDefaults        map[string]string `mapstructure:"model-defaults"`
    61→	BootstrapConstraints map[string]string `mapstructure:"bootstrap-constraints"`
    62→}
    63→
    64→// googleConfig represents how Juju should be configured for Google Cloud use.
    65→type googleConfig struct {
    66→	Enable               bool              `mapstructure:"enable"`
    67→	Bootstrap            bool              `mapstructure:"bootstrap"`
    68→	CredentialsFile      string            `mapstructure:"credentials-file"`
    69→	ModelDefaults        map[string]string `mapstructure:"model-defaults"`
    70→	BootstrapConstraints map[string]string `mapstructure:"bootstrap-constraints"`
    71→}
    72→
    73→// microk8sConfig represents how MicroK8s should be configured on the host.
    74→type microk8sConfig struct {
    75→	Enable               bool              `mapstructure:"enable"`
    76→	Bootstrap            bool              `mapstructure:"bootstrap"`
    77→	Channel              string            `mapstructure:"channel"`
    78→	Addons               []string          `mapstructure:"addons"`
    79→	ModelDefaults        map[string]string `mapstructure:"model-defaults"`
    80→	BootstrapConstraints map[string]string `mapstructure:"bootstrap-constraints"`
    81→}
    82→
    83→// k8sConfig represents how MicroK8s should be configured on the host.
    84→type k8sConfig struct {
    85→	Enable               bool                         `mapstructure:"enable"`
    86→	Bootstrap            bool                         `mapstructure:"bootstrap"`
    87→	Channel              string                       `mapstructure:"channel"`
    88→	Features             map[string]map[string]string `mapstructure:"features"`
    89→	ModelDefaults        map[string]string            `mapstructure:"model-defaults"`
    90→	BootstrapConstraints map[string]string            `mapstructure:"bootstrap-constraints"`
    91→}
    92→
    93→// SnapConfig represents the configuration for a specific snap to be installed.
    94→type SnapConfig struct {
    95→	// Channel is the channel from which to install the snap.
    96→	Channel string `mapstructure:"channel"`
    97→	// Connections is a list of snap connections to form.
    98→	Connections []string `mapstructure:"connections"`
    99→}
   100→
   101→// hostConfig is a top-level field containing addition configuration for the host being
   102→// configured.
   103→type hostConfig struct {
   104→	// Packages is a of apt packages to be installed from the archive
   105→	Packages []string `mapstructure:"packages"`
   106→	// Snaps is a map of snaps to be installed.
   107→	Snaps map[string]SnapConfig `mapstructure:"snaps"`
   108→}
   109→

<system-reminder>
Whenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.
</system-reminder>

     1→package config
     2→
     3→type ConfigOverrides struct {
     4→	DisableJuju       bool
     5→	K8sChannel        string
     6→	JujuChannel       string
     7→	MicroK8sChannel   string
     8→	LXDChannel        string
     9→	CharmcraftChannel string
    10→	SnapcraftChannel  string
    11→	RockcraftChannel  string
    12→
    13→	GoogleCredentialFile string
    14→
    15→	ExtraSnaps []string
    16→	ExtraDebs  []string
    17→}
    18→

<system-reminder>
Whenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.
</system-reminder>

File created successfully at: /home/ubuntu/concierge/src/concierge/config/models.py

     1→package config
     2→
     3→import "fmt"
     4→
     5→// Preset returns a configuration preset by name.
     6→func Preset(preset string) (*Config, error) {
     7→	switch preset {
     8→	case "k8s":
     9→		return k8sPreset, nil
    10→	case "microk8s":
    11→		return microk8sPreset, nil
    12→	case "machine":
    13→		return machinePreset, nil
    14→	case "dev":
    15→		return devPreset, nil
    16→	case "crafts":
    17→		return craftsPreset, nil
    18→	default:
    19→		return nil, fmt.Errorf("unknown preset '%s'", preset)
    20→	}
    21→}
    22→
    23→// defaultJujuConfig is the default Juju config for all presets.
    24→var defaultJujuConfig jujuConfig = jujuConfig{
    25→	Disable: false,
    26→	ModelDefaults: map[string]string{
    27→		"test-mode":                 "true",
    28→		"automatically-retry-hooks": "false",
    29→	},
    30→}
    31→
    32→// defaultPackages is the set of packages installed for all presets.
    33→var defaultPackages []string = []string{
    34→	"python3-pip",
    35→	"python3-venv",
    36→}
    37→
    38→// defaultSnaps is the set of snaps installed for all presets.
    39→var defaultSnaps map[string]SnapConfig = map[string]SnapConfig{
    40→	"charmcraft": {Channel: "latest/stable"},
    41→	"jq":         {Channel: "latest/stable"},
    42→	"yq":         {Channel: "latest/stable"},
    43→}
    44→
    45→// defaultLXDConfig is the standard LXD config used throughout presets.
    46→var defaultLXDConfig lxdConfig = lxdConfig{
    47→	Enable:    true,
    48→	Bootstrap: true,
    49→}
    50→
    51→// defaultMicroK8sConfig is the standard MicroK8s config used throughout presets.
    52→var defaultMicroK8sConfig microk8sConfig = microk8sConfig{
    53→	Enable:    true,
    54→	Bootstrap: true,
    55→	Addons: []string{
    56→		"hostpath-storage",
    57→		"dns",
    58→		"rbac",
    59→		"metallb:10.64.140.43-10.64.140.49",
    60→	},
    61→}
    62→
    63→// defaultK8sConfig is the standard K8s config used throughout presets.
    64→var defaultK8sConfig k8sConfig = k8sConfig{
    65→	Enable:               true,
    66→	Bootstrap:            true,
    67→	BootstrapConstraints: map[string]string{"root-disk": "2G"},
    68→	Features: map[string]map[string]string{
    69→		"load-balancer": {
    70→			"l2-mode": "true",
    71→			"cidrs":   "10.43.45.0/28",
    72→		},
    73→		"local-storage": {},
    74→		"network":       {},
    75→	},
    76→}
    77→
    78→// machinePreset is a configuration preset designed to be used when testing
    79→// machine charms.
    80→var machinePreset *Config = &Config{
    81→	Juju: defaultJujuConfig,
    82→	Providers: providerConfig{
    83→		LXD: defaultLXDConfig,
    84→	},
    85→	Host: hostConfig{
    86→		Packages: defaultPackages,
    87→		Snaps: MergeMaps(defaultSnaps, map[string]SnapConfig{
    88→			"snapcraft": {Channel: "latest/stable"},
    89→		}),
    90→	},
    91→}
    92→
    93→// k8sPreset is a configuration preset designed to be used when testing
    94→// k8s charms.
    95→var k8sPreset *Config = &Config{
    96→	Juju: defaultJujuConfig,
    97→	Providers: providerConfig{
    98→		// Enable LXD so charms can be built, but don't bootstrap onto it.
    99→		LXD: lxdConfig{Enable: true},
   100→		K8s: defaultK8sConfig,
   101→	},
   102→	Host: hostConfig{
   103→		Packages: defaultPackages,
   104→		Snaps: MergeMaps(defaultSnaps, map[string]SnapConfig{
   105→			"rockcraft": {Channel: "latest/stable"},
   106→		}),
   107→	},
   108→}
   109→
   110→// microk8sPreset is a configuration preset designed to be used when testing
   111→// k8s charms.
   112→var microk8sPreset *Config = &Config{
   113→	Juju: defaultJujuConfig,
   114→	Providers: providerConfig{
   115→		// Enable LXD so charms can be built, but don't bootstrap onto it.
   116→		LXD:      lxdConfig{Enable: true},
   117→		MicroK8s: defaultMicroK8sConfig,
   118→	},
   119→	Host: hostConfig{
   120→		Packages: defaultPackages,
   121→		Snaps: MergeMaps(defaultSnaps, map[string]SnapConfig{
   122→			"rockcraft": {Channel: "latest/stable"},
   123→		}),
   124→	},
   125→}
   126→
   127→// devPreset combines both the LXD and K8s presets, designed to be used by
   128→// developers when iterating on charms.
   129→var devPreset *Config = &Config{
   130→	Juju: defaultJujuConfig,
   131→	Providers: providerConfig{
   132→		LXD: defaultLXDConfig,
   133→		K8s: defaultK8sConfig,
   134→	},
   135→	Host: hostConfig{
   136→		Packages: defaultPackages,
   137→		Snaps: MergeMaps(defaultSnaps, map[string]SnapConfig{
   138→			"rockcraft": {Channel: "latest/stable"},
   139→			"snapcraft": {Channel: "latest/stable"},
   140→			"jhack":     {Channel: "latest/stable", Connections: []string{"jhack:dot-local-share-juju"}},
   141→		}),
   142→	},
   143→}
   144→
   145→// craftsPreset installs each of the crafts, and configures LXD, but disables Juju.
   146→// Useful for workflows where only artifacts need to be built.
   147→var craftsPreset *Config = &Config{
   148→	Juju: jujuConfig{
   149→		Disable: true,
   150→	},
   151→	Providers: providerConfig{
   152→		LXD: defaultLXDConfig,
   153→	},
   154→	Host: hostConfig{
   155→		Packages: defaultPackages,
   156→		Snaps: MergeMaps(defaultSnaps, map[string]SnapConfig{
   157→			"rockcraft": {Channel: "latest/stable"},
   158→			"snapcraft": {Channel: "latest/stable"},
   159→		}),
   160→	},
   161→}
   162→

<system-reminder>
Whenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.
</system-reminder>

File created successfully at: /home/ubuntu/concierge/src/concierge/config/presets.py

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File created successfully at: /home/ubuntu/concierge/src/concierge/config/loader.py

File created successfully at: /home/ubuntu/concierge/src/concierge/core/logging.py

File created successfully at: /home/ubuntu/concierge/src/concierge/cli/app.py

File created successfully at: /home/ubuntu/concierge/src/concierge/cli/commands/prepare.py

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Todos have been modified successfully. Ensure that you continue to use the todo list to track your progress. Please proceed with the current tasks if applicable

/home/ubuntu/concierge/internal/system/runner.go
/home/ubuntu/concierge/internal/system/interface.go
/home/ubuntu/concierge/internal/system/mock_system.go
/home/ubuntu/concierge/internal/system/snap.go
/home/ubuntu/concierge/internal/system/command.go
/home/ubuntu/concierge/internal/system/command_test.go
/home/ubuntu/concierge/internal/system/util.go
/home/ubuntu/concierge/internal/system/snap_test.go

     1→package system
     2→
     3→import (
     4→	"os/user"
     5→	"time"
     6→)
     7→
     8→// Worker is an interface for a struct that can run commands on the underlying system.
     9→type Worker interface {
    10→	// User returns the 'real user' the system executes command as. This may be different from
    11→	// the current user since the command is often executed with `sudo`.
    12→	User() *user.User
    13→	// Run takes a single command and runs it, returning the combined output and an error value.
    14→	Run(c *Command) ([]byte, error)
    15→	// RunMany takes multiple commands and runs them in sequence, returning an error on the
    16→	// first error encountered.
    17→	RunMany(commands ...*Command) error
    18→	// RunExclusive is a wrapper around Run that uses a mutex to ensure that only one of that
    19→	// particular command can be run at a time.
    20→	RunExclusive(c *Command) ([]byte, error)
    21→	// RunWithRetries executes the command, retrying utilising an exponential backoff pattern,
    22→	// which starts at 1 second. Retries will be attempted up to the specified maximum duration.
    23→	RunWithRetries(c *Command, maxDuration time.Duration) ([]byte, error)
    24→	// WriteHomeDirFile takes a path relative to the real user's home dir, and writes the contents
    25→	// specified to it.
    26→	WriteHomeDirFile(filepath string, contents []byte) error
    27→	// MkHomeSubdirectory takes a relative folder path and creates it recursively in the real
    28→	// user's home directory.
    29→	MkHomeSubdirectory(subdirectory string) error
    30→	// RemoveAllHome recursively removes a file path from the user's home directory.
    31→	RemoveAllHome(filePath string) error
    32→	// ReadHomeDirFile reads a file from the user's home directory.
    33→	ReadHomeDirFile(filepath string) ([]byte, error)
    34→	// ReadFile reads a file with an arbitrary path from the system.
    35→	ReadFile(filePath string) ([]byte, error)
    36→	// SnapInfo returns information about a given snap, looking up details in the snap
    37→	// store using the snapd client API where necessary.
    38→	SnapInfo(snap string, channel string) (*SnapInfo, error)
    39→	// SnapChannels returns the list of channels available for a given snap.
    40→	SnapChannels(snap string) ([]string, error)
    41→}
    42→

<system-reminder>
Whenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.
</system-reminder>

     1→package system
     2→
     3→import (
     4→	"log/slog"
     5→	"os/exec"
     6→
     7→	"github.com/canonical/x-go/strutil/shlex"
     8→)
     9→
    10→// Command represents a given command to be executed by Concierge, along with the
    11→// user and group that should be assumed if required.
    12→type Command struct {
    13→	Executable string
    14→	Args       []string
    15→	User       string
    16→	Group      string
    17→}
    18→
    19→// NewCommand constructs a command to be run as the current user/group.
    20→func NewCommand(executable string, args []string) *Command {
    21→	return &Command{
    22→		Executable: executable,
    23→		Args:       args,
    24→		User:       "",
    25→		Group:      "",
    26→	}
    27→}
    28→
    29→// NewCommandAs constructs a command to be run as the specified user/group.
    30→func NewCommandAs(user string, group string, executable string, args []string) *Command {
    31→	if user == "root" {
    32→		return NewCommand(executable, args)
    33→	}
    34→
    35→	return &Command{
    36→		Executable: executable,
    37→		Args:       args,
    38→		User:       user,
    39→		Group:      group,
    40→	}
    41→}
    42→
    43→// CommandString puts together a command to be executed in a shell, including the `sudo`
    44→// command and its arguments where appropriate.
    45→func (c *Command) CommandString() string {
    46→	path, err := exec.LookPath(c.Executable)
    47→	if err != nil {
    48→		slog.Debug("Failed to lookup command in path", "command", c.Executable)
    49→		path = c.Executable
    50→	}
    51→
    52→	cmdArgs := []string{}
    53→
    54→	if len(c.User) > 0 || len(c.Group) > 0 {
    55→		cmdArgs = append(cmdArgs, "sudo")
    56→	}
    57→
    58→	if len(c.User) > 0 {
    59→		cmdArgs = append(cmdArgs, "-u", c.User)
    60→	}
    61→
    62→	if len(c.Group) > 0 {
    63→		cmdArgs = append(cmdArgs, "-g", c.Group)
    64→	}
    65→
    66→	cmdArgs = append(cmdArgs, path)
    67→	cmdArgs = append(cmdArgs, c.Args...)
    68→
    69→	return shlex.Join(cmdArgs)
    70→}
    71→

<system-reminder>
Whenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.
</system-reminder>

     1→package system
     2→
     3→import (
     4→	"context"
     5→	"errors"
     6→	"fmt"
     7→	"log/slog"
     8→	"os"
     9→	"slices"
    10→	"strings"
    11→	"time"
    12→
    13→	retry "github.com/sethvargo/go-retry"
    14→	client "github.com/snapcore/snapd/client"
    15→)
    16→
    17→// SnapInfo represents information about a snap fetched from the snapd API.
    18→type SnapInfo struct {
    19→	Installed       bool
    20→	Classic         bool
    21→	TrackingChannel string
    22→}
    23→
    24→// Snap represents a given snap on a given channel.
    25→type Snap struct {
    26→	Name        string
    27→	Channel     string
    28→	Connections []string
    29→}
    30→
    31→// NewSnap returns a new Snap package.
    32→func NewSnap(name, channel string, connections []string) *Snap {
    33→	return &Snap{Name: name, Channel: channel, Connections: connections}
    34→}
    35→
    36→// NewSnapFromString returns a constructed snap instance, where the snap is
    37→// specified in shorthand form, i.e. `charmcraft/latest/edge`.
    38→func NewSnapFromString(snap string) *Snap {
    39→	before, after, found := strings.Cut(snap, "/")
    40→	if found {
    41→		return NewSnap(before, after, []string{})
    42→	} else {
    43→		return NewSnap(before, "", []string{})
    44→	}
    45→}
    46→
    47→// SnapInfo returns information about a given snap, looking up details in the snap
    48→// store using the snapd client API where necessary.
    49→func (s *System) SnapInfo(snap string, channel string) (*SnapInfo, error) {
    50→	classic, err := s.snapIsClassic(snap, channel)
    51→	if err != nil {
    52→		return nil, err
    53→	}
    54→
    55→	installed, trackingChannel := s.snapInstalledInfo(snap)
    56→
    57→	slog.Debug("Queried snapd API", "snap", snap, "installed", installed, "classic", classic, "tracking", trackingChannel)
    58→	return &SnapInfo{Installed: installed, Classic: classic, TrackingChannel: trackingChannel}, nil
    59→}
    60→
    61→// SnapChannels returns the list of channels available for a given snap.
    62→func (s *System) SnapChannels(snap string) ([]string, error) {
    63→	// Fetch the channels from
    64→	if _, err := os.Stat("/run/snapd.socket"); errors.Is(err, os.ErrNotExist) {
    65→		return nil, err
    66→	}
    67→
    68→	storeSnap, err := s.withRetry(func(ctx context.Context) (*client.Snap, error) {
    69→		snap, _, err := s.snapd.FindOne(snap)
    70→		if err != nil {
    71→			if strings.Contains(err.Error(), "snap not found") {
    72→				return nil, err
    73→			}
    74→			return nil, retry.RetryableError(err)
    75→
    76→		}
    77→		return snap, nil
    78→	})
    79→	if err != nil {
    80→		return nil, err
    81→	}
    82→
    83→	channels := make([]string, len(storeSnap.Channels))
    84→
    85→	i := 0
    86→	for k := range storeSnap.Channels {
    87→		channels[i] = k
    88→		i++
    89→	}
    90→
    91→	slices.Sort(channels)
    92→	slices.Reverse(channels)
    93→
    94→	return channels, nil
    95→}
    96→
    97→// snapInstalledInfo is a helper that reports if the snap is currently installed
    98→// and returns its tracking channel. The tracking channel is the channel the snap
    99→// is currently following (e.g., "latest/stable"). Returns empty string if the
   100→// snap is not installed or if the tracking channel cannot be determined.
   101→func (s *System) snapInstalledInfo(name string) (bool, string) {
   102→	snap, err := s.withRetry(func(ctx context.Context) (*client.Snap, error) {
   103→		snap, _, err := s.snapd.Snap(name)
   104→		if err != nil && strings.Contains(err.Error(), "snap not installed") {
   105→			return snap, nil
   106→		} else if err != nil {
   107→			return nil, retry.RetryableError(err)
   108→		}
   109→		return snap, nil
   110→	})
   111→	if err != nil || snap == nil {
   112→		return false, ""
   113→	}
   114→
   115→	if snap.Status == client.StatusActive {
   116→		trackingChannel := snap.TrackingChannel
   117→		if trackingChannel == "" {
   118→			trackingChannel = snap.Channel
   119→		}
   120→		return true, trackingChannel
   121→	}
   122→
   123→	return false, ""
   124→}
   125→
   126→// snapIsClassic reports whether or not the snap at the tip of the specified channel uses
   127→// Classic confinement or not.
   128→func (s *System) snapIsClassic(name, channel string) (bool, error) {
   129→	snap, err := s.withRetry(func(ctx context.Context) (*client.Snap, error) {
   130→		snap, _, err := s.snapd.FindOne(name)
   131→		if err != nil {
   132→			if strings.Contains(err.Error(), "snap not found") {
   133→				return nil, err
   134→			}
   135→			return nil, retry.RetryableError(err)
   136→		}
   137→		return snap, nil
   138→	})
   139→	if err != nil {
   140→		return false, fmt.Errorf("failed to find snap: %w", err)
   141→	}
   142→
   143→	c, ok := snap.Channels[channel]
   144→	if ok {
   145→		return c.Confinement == "classic", nil
   146→	}
   147→
   148→	return snap.Confinement == "classic", nil
   149→}
   150→
   151→func (s *System) withRetry(f func(ctx context.Context) (*client.Snap, error)) (*client.Snap, error) {
   152→	backoff := retry.NewExponential(1 * time.Second)
   153→	backoff = retry.WithMaxRetries(10, backoff)
   154→	ctx := context.Background()
   155→	return retry.DoValue(ctx, backoff, f)
   156→}
   157→

<system-reminder>
Whenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.
</system-reminder>

     1→package system
     2→
     3→import (
     4→	"context"
     5→	"errors"
     6→	"fmt"
     7→	"io/fs"
     8→	"log/slog"
     9→	"os"
    10→	"os/exec"
    11→	"os/user"
    12→	"path"
    13→	"path/filepath"
    14→	"strconv"
    15→	"strings"
    16→	"sync"
    17→	"time"
    18→
    19→	retry "github.com/sethvargo/go-retry"
    20→	client "github.com/snapcore/snapd/client"
    21→)
    22→
    23→// NewSystem constructs a new command system.
    24→func NewSystem(trace bool) (*System, error) {
    25→	realUser, err := realUser()
    26→	if err != nil {
    27→		return nil, fmt.Errorf("failed to lookup effective user details: %w", err)
    28→	}
    29→	return &System{
    30→		trace:      trace,
    31→		user:       realUser,
    32→		cmdMutexes: map[string]*sync.Mutex{},
    33→		snapd:      *client.New(nil),
    34→	}, nil
    35→}
    36→
    37→// System represents a struct that can run commands.
    38→type System struct {
    39→	trace bool
    40→	user  *user.User
    41→	snapd client.Client
    42→	// Map of mutexes to prevent the concurrent execution of certain commands.
    43→	cmdMutexes map[string]*sync.Mutex
    44→}
    45→
    46→// User returns a user struct containing details of the "real" user, which
    47→// may differ from the current user when concierge is executed with `sudo`.
    48→func (s *System) User() *user.User { return s.user }
    49→
    50→// Run executes the command, returning the stdout/stderr where appropriate.
    51→func (s *System) Run(c *Command) ([]byte, error) {
    52→	logger := slog.Default()
    53→	if len(c.User) > 0 {
    54→		logger = slog.With("user", c.User)
    55→	}
    56→	if len(c.Group) > 0 {
    57→		logger = slog.With("group", c.Group)
    58→	}
    59→
    60→	shell, err := getShellPath()
    61→	if err != nil {
    62→		return nil, fmt.Errorf("unable to determine shell path to run command")
    63→	}
    64→
    65→	commandString := c.CommandString()
    66→	cmd := exec.Command(shell, "-c", commandString)
    67→
    68→	logger.Debug("Starting command", "command", commandString)
    69→
    70→	start := time.Now()
    71→	output, err := cmd.CombinedOutput()
    72→
    73→	elapsed := time.Since(start)
    74→	logger.Debug("Finished command", "command", commandString, "elapsed", elapsed)
    75→
    76→	if s.trace || err != nil {
    77→		fmt.Print(generateTraceMessage(commandString, output))
    78→	}
    79→
    80→	return output, err
    81→}
    82→
    83→// RunWithRetries executes the command, retrying utilising an exponential backoff pattern,
    84→// which starts at 1 second. Retries will be attempted up to the specified maximum duration.
    85→func (s *System) RunWithRetries(c *Command, maxDuration time.Duration) ([]byte, error) {
    86→	backoff := retry.NewExponential(1 * time.Second)
    87→	backoff = retry.WithMaxDuration(maxDuration, backoff)
    88→	ctx := context.Background()
    89→
    90→	return retry.DoValue(ctx, backoff, func(ctx context.Context) ([]byte, error) {
    91→		output, err := s.Run(c)
    92→		if err != nil {
    93→			return nil, retry.RetryableError(err)
    94→		}
    95→
    96→		return output, nil
    97→	})
    98→}
    99→
   100→// RunMany takes a variadic number of Command's, and runs them in a loop, returning
   101→// and error if any command fails.
   102→func (s *System) RunMany(commands ...*Command) error {
   103→	for _, cmd := range commands {
   104→		_, err := s.Run(cmd)
   105→		if err != nil {
   106→			return err
   107→		}
   108→	}
   109→	return nil
   110→}
   111→
   112→// RunExclusive is a wrapper around Run that uses a mutex to ensure that only one of that
   113→// particular command can be run at a time.
   114→func (s *System) RunExclusive(c *Command) ([]byte, error) {
   115→	mtx, ok := s.cmdMutexes[c.Executable]
   116→	if !ok {
   117→		mtx = &sync.Mutex{}
   118→		s.cmdMutexes[c.Executable] = mtx
   119→	}
   120→
   121→	mtx.Lock()
   122→	defer mtx.Unlock()
   123→
   124→	output, err := s.Run(c)
   125→	return output, err
   126→}
   127→
   128→// WriteHomeDirFile takes a path relative to the real user's home dir, and writes the contents
   129→// specified to it.
   130→func (s *System) WriteHomeDirFile(filePath string, contents []byte) error {
   131→	dir := path.Dir(filePath)
   132→
   133→	err := s.MkHomeSubdirectory(dir)
   134→	if err != nil {
   135→		return err
   136→	}
   137→
   138→	filePath = path.Join(path.Join(s.user.HomeDir, filePath))
   139→
   140→	if err := os.WriteFile(filePath, contents, 0644); err != nil {
   141→		return fmt.Errorf("failed to write file '%s': %w", filePath, err)
   142→	}
   143→
   144→	err = s.chownRecursively(filePath, s.user)
   145→	if err != nil {
   146→		return fmt.Errorf("failed to change ownership of file '%s': %w", filePath, err)
   147→	}
   148→
   149→	return nil
   150→}
   151→
   152→// MkHomeSubdirectory takes a relative folder path and creates it recursively in the real
   153→// user's home directory.
   154→func (s *System) MkHomeSubdirectory(subdirectory string) error {
   155→	if path.IsAbs(subdirectory) {
   156→		return fmt.Errorf("only relative paths supported")
   157→	}
   158→
   159→	dir := path.Join(s.user.HomeDir, subdirectory)
   160→
   161→	err := os.MkdirAll(dir, os.ModePerm)
   162→	if err != nil {
   163→		return fmt.Errorf("failed to create directory '%s': %w", dir, err)
   164→	}
   165→
   166→	parts := strings.Split(subdirectory, "/")
   167→	if len(parts) > 0 {
   168→		dir = path.Join(s.user.HomeDir, parts[0])
   169→	}
   170→
   171→	err = s.chownRecursively(dir, s.user)
   172→	if err != nil {
   173→		return fmt.Errorf("failed to change ownership of directory '%s': %w", dir, err)
   174→	}
   175→
   176→	return nil
   177→}
   178→
   179→// ReadHomeDirFile takes a path relative to the real user's home dir, and reads the content
   180→// from the file
   181→func (s *System) ReadHomeDirFile(filePath string) ([]byte, error) {
   182→	homePath := path.Join(s.user.HomeDir, filePath)
   183→	return s.ReadFile(homePath)
   184→}
   185→
   186→// ReadFile takes a path and reads the content from the specified file.
   187→func (s *System) ReadFile(filePath string) ([]byte, error) {
   188→	if _, err := os.Stat(filePath); errors.Is(err, os.ErrNotExist) {
   189→		return nil, fmt.Errorf("file '%s' does not exist: %w", filePath, err)
   190→	}
   191→	return os.ReadFile(filePath)
   192→}
   193→
   194→// RemoveAllHome recursively removes a file path from the user's home directory.
   195→func (s *System) RemoveAllHome(filePath string) error {
   196→	return os.RemoveAll(path.Join(s.user.HomeDir, filePath))
   197→}
   198→
   199→// ChownRecursively recursively changes ownership of a given filepath to the uid/gid of
   200→// the specified user.
   201→func (s *System) chownRecursively(path string, user *user.User) error {
   202→	uid, err := strconv.Atoi(user.Uid)
   203→	if err != nil {
   204→		return fmt.Errorf("failed to convert user id string to int: %w", err)
   205→	}
   206→	gid, err := strconv.Atoi(user.Gid)
   207→	if err != nil {
   208→		return fmt.Errorf("failed to convert group id string to int: %w", err)
   209→	}
   210→
   211→	err = filepath.WalkDir(path, func(path string, d fs.DirEntry, err error) error {
   212→		if err != nil {
   213→			return err
   214→		}
   215→
   216→		err = os.Chown(path, uid, gid)
   217→		if err != nil {
   218→			return err
   219→		}
   220→
   221→		return nil
   222→	})
   223→
   224→	slog.Debug("Filesystem ownership changed", "user", user.Username, "group", user.Gid, "path", path)
   225→	return err
   226→}
   227→

<system-reminder>
Whenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.
</system-reminder>

File created successfully at: /home/ubuntu/concierge/src/concierge/system/command.py

File created successfully at: /home/ubuntu/concierge/src/concierge/system/models.py

File created successfully at: /home/ubuntu/concierge/src/concierge/system/worker.py

Todos have been modified successfully. Ensure that you continue to use the todo list to track your progress. Please proceed with the current tasks if applicable

     1→package system
     2→
     3→import (
     4→	"errors"
     5→	"fmt"
     6→	"os"
     7→	"os/exec"
     8→	"os/user"
     9→
    10→	"github.com/fatih/color"
    11→)
    12→
    13→// generateTraceMessage creates a formatted string that is written to stdout, representing
    14→// a command and it's output when concierge is run with `--trace`.
    15→func generateTraceMessage(cmd string, output []byte) string {
    16→	green := color.New(color.FgGreen, color.Bold, color.Underline)
    17→	bold := color.New(color.Bold)
    18→
    19→	result := fmt.Sprintf("%s %s\n", green.Sprint("Command:"), bold.Sprint(cmd))
    20→	if len(output) > 0 {
    21→		result = fmt.Sprintf("%s%s\n%s", result, green.Sprintf("Output:"), string(output))
    22→	}
    23→	return result
    24→}
    25→
    26→// getShellPath tries to find the path to the user's preferred shell, as per the `SHELL“
    27→// environment variable. If that cannot be found, it looks for a path to "bash", and to
    28→// "sh" in that order. If no shell can be found, then an error is returned.
    29→func getShellPath() (string, error) {
    30→	// If the `SHELL` var is set, return that.
    31→	shellVar := os.Getenv("SHELL")
    32→	if len(shellVar) > 0 {
    33→		return shellVar, nil
    34→	}
    35→
    36→	// Try both the command name (to lookup in PATH), and common default paths.
    37→	for _, shell := range []string{"bash", "/bin/bash", "sh", "/bin/sh"} {
    38→		// Check if the shell path exists
    39→		if _, err := os.Stat(shell); errors.Is(err, os.ErrNotExist) {
    40→			// If the path doesn't exist, the lookup the value in the `PATH` variable
    41→			path, err := exec.LookPath(shell)
    42→			if err != nil {
    43→				continue
    44→			}
    45→			return path, nil
    46→		}
    47→		return shell, nil
    48→	}
    49→
    50→	return "", fmt.Errorf("could not find path to a shell")
    51→}
    52→
    53→// realUser returns a user struct containing details of the "real" user, which
    54→// may differ from the current user when concierge is executed with `sudo`.
    55→func realUser() (*user.User, error) {
    56→	realUser := os.Getenv("SUDO_USER")
    57→	if len(realUser) == 0 {
    58→		return user.Lookup("root")
    59→	}
    60→
    61→	return user.Lookup(realUser)
    62→}
    63→

<system-reminder>
Whenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.
</system-reminder>

File created successfully at: /home/ubuntu/concierge/src/concierge/system/runner.py

File created successfully at: /home/ubuntu/concierge/src/concierge/system/snap.py

The file /home/ubuntu/concierge/src/concierge/system/runner.py has been updated. Here's the result of running `cat -n` on a snippet of the edited file:
    13→    stop_after_delay,
    14→    wait_exponential,
    15→)
    16→
    17→from concierge.system.command import Command, CommandError
    18→from concierge.system.models import SnapInfo
    19→from concierge.system.snap import SnapdClient
    20→
    21→logger = structlog.get_logger()
    22→
    23→
    24→def _get_shell_path() -> str:
    25→    """Get path to the shell to use for command execution.

The file /home/ubuntu/concierge/src/concierge/system/runner.py has been updated. Here's the result of running `cat -n` on a snippet of the edited file:
    74→    This class implements the Worker protocol and provides methods for
    75→    executing commands, managing files, and interacting with snapd.
    76→    """
    77→
    78→    def __init__(self, trace: bool = False) -> None:
    79→        """Initialize the System.
    80→
    81→        Args:
    82→            trace: Enable trace logging for all command output
    83→        """
    84→        self._trace = trace
    85→        self._shell = _get_shell_path()
    86→        self._username, self._home_dir = _get_real_user()
    87→        self._command_locks: dict[str, asyncio.Lock] = {}
    88→        self._snapd_client = SnapdClient()
    89→
    90→    def username(self) -> str:
    91→        """Get the real username.
    92→

The file /home/ubuntu/concierge/src/concierge/system/runner.py has been updated. Here's the result of running `cat -n` on a snippet of the edited file:
   300→            raise FileNotFoundError(f"File '{filepath}' does not exist")
   301→
   302→        return filepath.read_bytes()
   303→
   304→    async def snap_info(self, snap: str, channel: str = "") -> SnapInfo:
   305→        """Get information about a snap from the snapd API.
   306→
   307→        Args:
   308→            snap: Name of the snap
   309→            channel: Optional channel to query
   310→
   311→        Returns:
   312→            Snap information
   313→
   314→        Raises:
   315→            Exception: If snapd API fails
   316→        """
   317→        return await self._snapd_client.snap_info(snap, channel)
   318→
   319→    async def snap_channels(self, snap: str) -> list[str]:
   320→        """Get list of available channels for a snap.
   321→
   322→        Args:
   323→            snap: Name of the snap
   324→
   325→        Returns:
   326→            List of channel names, sorted
   327→
   328→        Raises:
   329→            Exception: If snapd API fails
   330→        """
   331→        return await self._snapd_client.snap_channels(snap)
   332→
   333→    async def _chown_recursive(self, path: Path) -> None:
   334→        """Change ownership of a path recursively to the real user.
   335→

The file /home/ubuntu/concierge/src/concierge/system/models.py has been updated. Here's the result of running `cat -n` on a snippet of the edited file:
     1→"""Data models for system operations."""
     2→
     3→from dataclasses import dataclass, field
     4→
     5→
     6→@dataclass
     7→class SnapInfo:

The file /home/ubuntu/concierge/src/concierge/system/models.py has been updated. Here's the result of running `cat -n` on a snippet of the edited file:
    41→
    42→        Returns:
    43→            Snap instance
    44→        """
    45→        parts = snap_str.split("/", 1)
    46→        if len(parts) == 2:
    47→            return Snap(name=parts[0], channel=parts[1])
    48→        return Snap(name=parts[0])
    49→

System import successful

Todos have been modified successfully. Ensure that you continue to use the todo list to track your progress. Please proceed with the current tasks if applicable

/home/ubuntu/concierge/internal/packages/deb_handler.go
/home/ubuntu/concierge/internal/packages/deb_handler_test.go
/home/ubuntu/concierge/internal/packages/snap_handler.go
/home/ubuntu/concierge/internal/packages/snap_handler_test.go

     1→package packages
     2→
     3→import (
     4→	"fmt"
     5→	"log/slog"
     6→	"strings"
     7→
     8→	"github.com/canonical/concierge/internal/system"
     9→)
    10→
    11→// NewSnapHandler constructs a new instance of a SnapHandler.
    12→func NewSnapHandler(system system.Worker, snaps []*system.Snap) *SnapHandler {
    13→	return &SnapHandler{
    14→		Snaps:  snaps,
    15→		system: system,
    16→	}
    17→}
    18→
    19→// SnapHandler can install or remove a set of snaps.
    20→type SnapHandler struct {
    21→	Snaps  []*system.Snap
    22→	system system.Worker
    23→}
    24→
    25→// Prepare installs a set of snaps on the machine.
    26→func (h *SnapHandler) Prepare() error {
    27→	for _, snap := range h.Snaps {
    28→		err := h.installSnap(snap)
    29→		if err != nil {
    30→			return fmt.Errorf("failed to install snap: %w", err)
    31→		}
    32→
    33→		err = h.connectSnap(snap)
    34→		if err != nil {
    35→			return fmt.Errorf("failed to create snap connections: %w", err)
    36→		}
    37→	}
    38→	return nil
    39→}
    40→
    41→// Restore removes a set of snaps from the machine.
    42→func (h *SnapHandler) Restore() error {
    43→	for _, snap := range h.Snaps {
    44→		err := h.removeSnap(snap)
    45→		if err != nil {
    46→			return fmt.Errorf("failed to remove snap: %w", err)
    47→		}
    48→	}
    49→	return nil
    50→}
    51→
    52→// installSnap ensures that the specified snap is installed at the specified channel.
    53→// If already installed, but on the wrong channel, the snap is refreshed.
    54→func (h *SnapHandler) installSnap(s *system.Snap) error {
    55→	slog.Debug("Installing snap", "snap", s.Name)
    56→	var action, logAction string
    57→
    58→	snapInfo, err := h.system.SnapInfo(s.Name, s.Channel)
    59→	if err != nil {
    60→		return fmt.Errorf("failed to lookup snap details: %w", err)
    61→	}
    62→
    63→	if snapInfo.Installed {
    64→		action = "refresh"
    65→		logAction = "Refreshed"
    66→	} else {
    67→		action = "install"
    68→		logAction = "Installed"
    69→	}
    70→
    71→	args := []string{action, s.Name}
    72→
    73→	if s.Channel != "" {
    74→		args = append(args, "--channel", s.Channel)
    75→	}
    76→
    77→	if snapInfo.Classic {
    78→		args = append(args, "--classic")
    79→	}
    80→
    81→	cmd := system.NewCommand("snap", args)
    82→	_, err = h.system.RunExclusive(cmd)
    83→	if err != nil {
    84→		return fmt.Errorf("command failed: %w", err)
    85→	}
    86→
    87→	slog.Info(fmt.Sprintf("%s snap", logAction), "snap", s.Name)
    88→	return nil
    89→}
    90→
    91→// connectSnap ensures that the specified snap interfaces are connected.
    92→func (h *SnapHandler) connectSnap(s *system.Snap) error {
    93→	for _, connection := range s.Connections {
    94→		parts := strings.Split(connection, " ")
    95→		if len(parts) > 2 {
    96→			return fmt.Errorf("too many arguments in snap connection string '%s'", connection)
    97→		}
    98→
    99→		args := append([]string{"connect"}, parts...)
   100→
   101→		cmd := system.NewCommand("snap", args)
   102→		_, err := h.system.RunExclusive(cmd)
   103→		if err != nil {
   104→			return fmt.Errorf("command failed: %w", err)
   105→		}
   106→	}
   107→	return nil
   108→}
   109→
   110→// removeSnap uninstalls the specified snap from the system, optionally purging its data.
   111→func (h *SnapHandler) removeSnap(s *system.Snap) error {
   112→	slog.Debug("Removing snap", "snap", s.Name)
   113→	args := []string{"remove", s.Name, "--purge"}
   114→
   115→	cmd := system.NewCommand("snap", args)
   116→	_, err := h.system.RunExclusive(cmd)
   117→	if err != nil {
   118→		return fmt.Errorf("failed to remove snap '%s': %w", s.Name, err)
   119→	}
   120→
   121→	slog.Info("Removed snap", "snap", s.Name)
   122→	return nil
   123→}
   124→

<system-reminder>
Whenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.
</system-reminder>

     1→package packages
     2→
     3→import (
     4→	"fmt"
     5→	"log/slog"
     6→
     7→	"github.com/canonical/concierge/internal/system"
     8→)
     9→
    10→// NewDeb constructs a new Deb instance.
    11→func NewDeb(name string) *Deb {
    12→	return &Deb{Name: name}
    13→}
    14→
    15→// Deb is a simple representation of a package installed from the Ubuntu archive.
    16→type Deb struct {
    17→	Name string
    18→}
    19→
    20→// NewDebHandler constructs a new instance of a DebHandler.
    21→func NewDebHandler(system system.Worker, debs []*Deb) *DebHandler {
    22→	return &DebHandler{
    23→		Debs:   debs,
    24→		system: system,
    25→	}
    26→}
    27→
    28→// DebHandler can install or remove a set of debs.
    29→type DebHandler struct {
    30→	Debs   []*Deb
    31→	system system.Worker
    32→}
    33→
    34→// Prepare updates the apt cache and installs a set of debs from the archive.
    35→func (h *DebHandler) Prepare() error {
    36→	if len(h.Debs) == 0 {
    37→		return nil
    38→	}
    39→
    40→	err := h.updateAptCache()
    41→	if err != nil {
    42→		return fmt.Errorf("failed to update apt cache: %w", err)
    43→	}
    44→
    45→	for _, deb := range h.Debs {
    46→		err := h.installDeb(deb)
    47→		if err != nil {
    48→			return fmt.Errorf("failed to install deb: %w", err)
    49→		}
    50→	}
    51→	return nil
    52→}
    53→
    54→// Restore removes a set of debs from the machine.
    55→func (h *DebHandler) Restore() error {
    56→	for _, deb := range h.Debs {
    57→		err := h.removeDeb(deb)
    58→		if err != nil {
    59→			return fmt.Errorf("failed to remove deb: %w", err)
    60→		}
    61→	}
    62→
    63→	cmd := system.NewCommand("apt-get", []string{"autoremove", "-y"})
    64→
    65→	_, err := h.system.RunExclusive(cmd)
    66→	if err != nil {
    67→		return fmt.Errorf("failed to install apt package: %w", err)
    68→	}
    69→
    70→	return nil
    71→}
    72→
    73→// installDeb uses `apt` to install the package on the system from the archives.
    74→func (h *DebHandler) installDeb(d *Deb) error {
    75→	cmd := system.NewCommand("apt-get", []string{"install", "-y", d.Name})
    76→
    77→	_, err := h.system.RunExclusive(cmd)
    78→	if err != nil {
    79→		return fmt.Errorf("failed to install apt package '%s': %w", d.Name, err)
    80→	}
    81→
    82→	slog.Info("Installed apt package", "package", d.Name)
    83→	return nil
    84→}
    85→
    86→// Remove uninstalls the deb from the system with `apt`.
    87→func (h *DebHandler) removeDeb(d *Deb) error {
    88→	cmd := system.NewCommand("apt-get", []string{"remove", "-y", d.Name})
    89→
    90→	_, err := h.system.RunExclusive(cmd)
    91→	if err != nil {
    92→		return fmt.Errorf("failed to remove apt package '%s': %w", d.Name, err)
    93→	}
    94→
    95→	slog.Info("Removed apt package", "package", d.Name)
    96→	return nil
    97→}
    98→
    99→// updateAptCache is a helper method to update the host's package cache.
   100→func (h *DebHandler) updateAptCache() error {
   101→	cmd := system.NewCommand("apt-get", []string{"update"})
   102→
   103→	_, err := h.system.RunExclusive(cmd)
   104→	if err != nil {
   105→		return fmt.Errorf("failed to update apt package lists: %w", err)
   106→	}
   107→
   108→	return nil
   109→}
   110→

<system-reminder>
Whenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.
</system-reminder>

File created successfully at: /home/ubuntu/concierge/src/concierge/core/executable.py

File created successfully at: /home/ubuntu/concierge/src/concierge/packages/snap_handler.py

File created successfully at: /home/ubuntu/concierge/src/concierge/packages/deb_handler.py

Todos have been modified successfully. Ensure that you continue to use the todo list to track your progress. Please proceed with the current tasks if applicable

/home/ubuntu/concierge/internal/providers/google.go
/home/ubuntu/concierge/internal/providers/k8s.go
/home/ubuntu/concierge/internal/providers/microk8s.go
/home/ubuntu/concierge/internal/providers/microk8s_test.go
/home/ubuntu/concierge/internal/providers/google_test.go
/home/ubuntu/concierge/internal/providers/providers.go
/home/ubuntu/concierge/internal/providers/lxd.go
/home/ubuntu/concierge/internal/providers/lxd_test.go
/home/ubuntu/concierge/internal/providers/k8s_test.go

     1→package providers
     2→
     3→import (
     4→	"github.com/canonical/concierge/internal/config"
     5→	"github.com/canonical/concierge/internal/system"
     6→)
     7→
     8→// SupportedProviders is a list of stringified names of supported providers.
     9→var SupportedProviders []string = []string{
    10→	"k8s",
    11→	"google",
    12→	"lxd",
    13→	"microk8s",
    14→}
    15→
    16→// Provider describes the set of methods expected to be available on a
    17→// provider that concierge can try to bootstrap Juju onto.
    18→type Provider interface {
    19→	// Prepare is used for installing/configuring the provider.
    20→	Prepare() error
    21→	// Restore is used for uninstalling the provider.
    22→	Restore() error
    23→	// Name reports the name of the provider used internally by concierge.
    24→	Name() string
    25→	// Bootstrap reports whether or not a Juju controller should be bootstrapped on the provider.
    26→	Bootstrap() bool
    27→	// CloudName reports name of the provider as Juju sees it.
    28→	CloudName() string
    29→	// GroupName reports the name of a POSIX user group that can be used
    30→	// to allow non-root users to interact with the provider (where applicable).
    31→	GroupName() string
    32→	// Credentials reports the section of Juju's credentials.yaml for the provider.
    33→	Credentials() map[string]interface{}
    34→	// ModelDefaults reports the Juju model-defaults specific to the provider.
    35→	ModelDefaults() map[string]string
    36→	// BootstrapConstraints reports the Juju bootstrap-constraints specific to the provider.
    37→	BootstrapConstraints() map[string]string
    38→}
    39→
    40→// NewProvider returns a newly constructed provider based on a stringified name of the provider.
    41→func NewProvider(providerName string, system system.Worker, config *config.Config) Provider {
    42→	if providerName == "lxd" && config.Providers.LXD.Enable {
    43→		return NewLXD(system, config)
    44→	} else if providerName == "microk8s" && config.Providers.MicroK8s.Enable {
    45→		return NewMicroK8s(system, config)
    46→	} else if providerName == "google" && config.Providers.Google.Enable {
    47→		return NewGoogle(system, config)
    48→	} else if providerName == "k8s" && config.Providers.K8s.Enable {
    49→		return NewK8s(system, config)
    50→	} else {
    51→		return nil
    52→	}
    53→}
    54→

<system-reminder>
Whenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.
</system-reminder>

File created successfully at: /home/ubuntu/concierge/src/concierge/providers/base.py

     1→package providers
     2→
     3→import (
     4→	"fmt"
     5→	"log/slog"
     6→
     7→	"github.com/canonical/concierge/internal/config"
     8→	"github.com/canonical/concierge/internal/system"
     9→	"gopkg.in/yaml.v3"
    10→)
    11→
    12→// NewGoogle constructs a new Google provider instance.
    13→func NewGoogle(system system.Worker, config *config.Config) *Google {
    14→	credentialsFile := config.Providers.Google.CredentialsFile
    15→	if config.Overrides.GoogleCredentialFile != "" {
    16→		credentialsFile = config.Overrides.GoogleCredentialFile
    17→	}
    18→
    19→	return &Google{
    20→		system:               system,
    21→		bootstrap:            config.Providers.Google.Bootstrap,
    22→		credentialsFile:      credentialsFile,
    23→		credentials:          map[string]interface{}{},
    24→		modelDefaults:        config.Providers.Google.ModelDefaults,
    25→		bootstrapConstraints: config.Providers.Google.BootstrapConstraints,
    26→	}
    27→}
    28→
    29→// Google represents a Google cloud to bootstrap.
    30→type Google struct {
    31→	bootstrap            bool
    32→	system               system.Worker
    33→	credentialsFile      string
    34→	credentials          map[string]interface{}
    35→	modelDefaults        map[string]string
    36→	bootstrapConstraints map[string]string
    37→}
    38→
    39→// Prepare installs and configures Google such that it can work in testing environments.
    40→// This includes installing the snap, enabling the user who ran concierge to interact
    41→// with Google without sudo, and deconflicting the firewall rules with docker.
    42→func (l *Google) Prepare() error {
    43→	contents, err := l.system.ReadFile(l.credentialsFile)
    44→	if err != nil {
    45→		return fmt.Errorf("failed to read credentials file: %w", err)
    46→	}
    47→
    48→	credentials := make(map[string]interface{})
    49→
    50→	err = yaml.Unmarshal(contents, &credentials)
    51→	if err != nil {
    52→		return fmt.Errorf("failed to parse google cloud credentials: %w", err)
    53→	}
    54→
    55→	l.credentials = credentials
    56→
    57→	slog.Info("Prepared provider", "provider", l.Name())
    58→	return nil
    59→}
    60→
    61→// Name reports the name of the provider for Concierge's purposes.
    62→func (l *Google) Name() string { return "google" }
    63→
    64→// Bootstrap reports whether a Juju controller should be bootstrapped on Google.
    65→func (l *Google) Bootstrap() bool { return l.bootstrap }
    66→
    67→// CloudName reports the name of the provider as Juju sees it.
    68→func (l *Google) CloudName() string { return "google" }
    69→
    70→// GroupName reports the name of the POSIX group with permissions over the Google socket.
    71→func (l *Google) GroupName() string { return "" }
    72→
    73→// Credentials reports the section of Juju's credentials.yaml for the provider.
    74→func (l *Google) Credentials() map[string]interface{} { return l.credentials }
    75→
    76→// ModelDefaults reports the Juju model-defaults specific to the provider.
    77→func (l *Google) ModelDefaults() map[string]string { return l.modelDefaults }
    78→
    79→// BootstrapConstraints reports the Juju bootstrap-constraints specific to the provider.
    80→func (l *Google) BootstrapConstraints() map[string]string { return l.bootstrapConstraints }
    81→
    82→// Remove Google provider.
    83→func (l *Google) Restore() error {
    84→	slog.Info("Restored provider", "provider", l.Name())
    85→	return nil
    86→}
    87→

<system-reminder>
Whenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.
</system-reminder>

File created successfully at: /home/ubuntu/concierge/src/concierge/providers/google.py

     1→package providers
     2→
     3→import (
     4→	"fmt"
     5→	"log/slog"
     6→
     7→	"github.com/canonical/concierge/internal/config"
     8→	"github.com/canonical/concierge/internal/packages"
     9→	"github.com/canonical/concierge/internal/system"
    10→)
    11→
    12→// NewLXD constructs a new LXD provider instance.
    13→func NewLXD(r system.Worker, config *config.Config) *LXD {
    14→	var channel string
    15→	if config.Overrides.LXDChannel != "" {
    16→		channel = config.Overrides.LXDChannel
    17→	} else {
    18→		channel = config.Providers.LXD.Channel
    19→	}
    20→
    21→	return &LXD{
    22→		Channel:              channel,
    23→		system:               r,
    24→		bootstrap:            config.Providers.LXD.Bootstrap,
    25→		modelDefaults:        config.Providers.LXD.ModelDefaults,
    26→		bootstrapConstraints: config.Providers.LXD.BootstrapConstraints,
    27→		snaps:                []*system.Snap{{Name: "lxd", Channel: channel}},
    28→	}
    29→}
    30→
    31→// LXD represents a LXD install on a given machine.
    32→type LXD struct {
    33→	Channel string
    34→
    35→	bootstrap            bool
    36→	modelDefaults        map[string]string
    37→	bootstrapConstraints map[string]string
    38→
    39→	system system.Worker
    40→	snaps  []*system.Snap
    41→}
    42→
    43→// Prepare installs and configures LXD such that it can work in testing environments.
    44→// This includes installing the snap, enabling the user who ran concierge to interact
    45→// with LXD without sudo, and deconflicting the firewall rules with docker.
    46→func (l *LXD) Prepare() error {
    47→	err := l.install()
    48→	if err != nil {
    49→		return fmt.Errorf("failed to install LXD: %w", err)
    50→	}
    51→
    52→	err = l.init()
    53→	if err != nil {
    54→		return fmt.Errorf("failed to initialise LXD: %w", err)
    55→	}
    56→
    57→	err = l.enableNonRootUserControl()
    58→	if err != nil {
    59→		return fmt.Errorf("failed to enable non-root LXD access: %w", err)
    60→	}
    61→
    62→	err = l.deconflictFirewall()
    63→	if err != nil {
    64→		return fmt.Errorf("failed to adjust firewall rules for LXD: %w", err)
    65→	}
    66→
    67→	slog.Info("Prepared provider", "provider", l.Name())
    68→	return nil
    69→}
    70→
    71→// Name reports the name of the provider for Concierge's purposes.
    72→func (l *LXD) Name() string { return "lxd" }
    73→
    74→// Bootstrap reports whether a Juju controller should be bootstrapped on LXD.
    75→func (l *LXD) Bootstrap() bool { return l.bootstrap }
    76→
    77→// CloudName reports the name of the provider as Juju sees it.
    78→func (l *LXD) CloudName() string { return "localhost" }
    79→
    80→// GroupName reports the name of the POSIX group with permissions over the LXD socket.
    81→func (l *LXD) GroupName() string { return "lxd" }
    82→
    83→// Credentials reports the section of Juju's credentials.yaml for the provider
    84→func (l *LXD) Credentials() map[string]interface{} { return nil }
    85→
    86→// ModelDefaults reports the Juju model-defaults specific to the provider.
    87→func (l *LXD) ModelDefaults() map[string]string { return l.modelDefaults }
    88→
    89→// BootstrapConstraints reports the Juju bootstrap-constraints specific to the provider.
    90→func (l *LXD) BootstrapConstraints() map[string]string { return l.bootstrapConstraints }
    91→
    92→// Remove uninstalls LXD.
    93→func (l *LXD) Restore() error {
    94→	snapHandler := packages.NewSnapHandler(l.system, l.snaps)
    95→
    96→	err := snapHandler.Restore()
    97→	if err != nil {
    98→		return err
    99→	}
   100→
   101→	slog.Info("Restored provider", "provider", l.Name())
   102→	return nil
   103→}
   104→
   105→// install ensures that LXD is installed.
   106→func (l *LXD) install() error {
   107→	// Check if LXD is already installed, and stop the snap if it is.
   108→	restart, err := l.workaroundRefresh()
   109→	if err != nil {
   110→		return err
   111→	}
   112→
   113→	snapHandler := packages.NewSnapHandler(l.system, l.snaps)
   114→
   115→	err = snapHandler.Prepare()
   116→	if err != nil {
   117→		return err
   118→	}
   119→
   120→	// If we stopped the LXD snap, make sure we start it again now the refresh
   121→	// has happened.
   122→	if restart {
   123→		args := []string{"start", l.Name()}
   124→		cmd := system.NewCommand("snap", args)
   125→		_, err = l.system.RunExclusive(cmd)
   126→		if err != nil {
   127→			return err
   128→		}
   129→	}
   130→
   131→	return nil
   132→}
   133→
   134→// init ensures that LXD is minimally configured, and ready.
   135→func (l *LXD) init() error {
   136→	return l.system.RunMany(
   137→		system.NewCommand("lxd", []string{"waitready", "--timeout", "270"}),
   138→		system.NewCommand("lxd", []string{"init", "--minimal"}),
   139→		system.NewCommand("lxc", []string{"network", "set", "lxdbr0", "ipv6.address", "none"}),
   140→	)
   141→}
   142→
   143→// enableNonRootUserControl ensures the current user is in the `lxd` group.
   144→func (l *LXD) enableNonRootUserControl() error {
   145→	username := l.system.User().Username
   146→
   147→	return l.system.RunMany(
   148→		system.NewCommand("chmod", []string{"a+wr", "/var/snap/lxd/common/lxd/unix.socket"}),
   149→		system.NewCommand("usermod", []string{"-a", "-G", "lxd", username}),
   150→	)
   151→}
   152→
   153→// deconflictFirewall ensures that LXD containers can talk out to the internet.
   154→// This is to avoid a conflict with the default iptables rules that ship with
   155→// docker on Ubuntu.
   156→func (l *LXD) deconflictFirewall() error {
   157→	return l.system.RunMany(
   158→		system.NewCommand("iptables", []string{"-F", "FORWARD"}),
   159→		system.NewCommand("iptables", []string{"-P", "FORWARD", "ACCEPT"}),
   160→	)
   161→}
   162→
   163→// workaroundRefresh checks if LXD will be refreshed and stops it first.
   164→// This is a workaround for an issue in the LXD snap sometimes failing
   165→// on refresh because of a missing snap socket file.
   166→func (l *LXD) workaroundRefresh() (bool, error) {
   167→	snapInfo, err := l.system.SnapInfo(l.Name(), l.Channel)
   168→	if err != nil {
   169→		return false, fmt.Errorf("failed to lookup snap details: %w", err)
   170→	}
   171→
   172→	// Only stop LXD if it's installed AND needs to be refreshed (channel mismatch).
   173→	if snapInfo.Installed {
   174→		// If no channel is specified, snapd will refresh on the current channel without changing it.
   175→		// If the tracking channel matches the target channel, the refresh won't change channels.
   176→		// In both cases, no stop is needed since the channel isn't changing.
   177→        if l.Channel == "" || snapInfo.TrackingChannel == l.Channel {
   178→		    slog.Debug("Skipping LXD stop - no channel change required",
   179→				"tracking", snapInfo.TrackingChannel, "target", l.Channel)
   180→			return false, nil
   181→		}
   182→
   183→		// Channel mismatch detected - LXD will be refreshed, so stop it first
   184→		// to work around a snap refresh issue with missing socket files.
   185→		slog.Debug("LXD channel mismatch, stopping for refresh",
   186→			"tracking", snapInfo.TrackingChannel, "target", l.Channel)
   187→		args := []string{"stop", l.Name()}
   188→		cmd := system.NewCommand("snap", args)
   189→		_, err = l.system.RunExclusive(cmd)
   190→		if err != nil {
   191→			return false, fmt.Errorf("command failed: %w", err)
   192→		}
   193→		return true, nil
   194→	}
   195→
   196→	return false, nil
   197→}
   198→

<system-reminder>
Whenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.
</system-reminder>

File created successfully at: /home/ubuntu/concierge/src/concierge/providers/lxd.py

     1→package providers
     2→
     3→import (
     4→	"fmt"
     5→	"log/slog"
     6→	"path"
     7→	"strings"
     8→	"time"
     9→
    10→	"github.com/canonical/concierge/internal/config"
    11→	"github.com/canonical/concierge/internal/packages"
    12→	"github.com/canonical/concierge/internal/system"
    13→)
    14→
    15→// Default channel from which MicroK8s is installed when the latest strict
    16→// version cannot be determined.
    17→const defaultMicroK8sChannel = "1.32-strict/stable"
    18→
    19→// NewMicroK8s constructs a new MicroK8s provider instance.
    20→func NewMicroK8s(r system.Worker, config *config.Config) *MicroK8s {
    21→	var channel string
    22→
    23→	if config.Overrides.MicroK8sChannel != "" {
    24→		channel = config.Overrides.MicroK8sChannel
    25→	} else if config.Providers.MicroK8s.Channel == "" {
    26→		channel = computeDefaultChannel(r)
    27→	} else {
    28→		channel = config.Providers.MicroK8s.Channel
    29→	}
    30→
    31→	return &MicroK8s{
    32→		Channel:              channel,
    33→		Addons:               config.Providers.MicroK8s.Addons,
    34→		bootstrap:            config.Providers.MicroK8s.Bootstrap,
    35→		modelDefaults:        config.Providers.Google.ModelDefaults,
    36→		bootstrapConstraints: config.Providers.Google.BootstrapConstraints,
    37→		system:               r,
    38→		snaps: []*system.Snap{
    39→			{Name: "microk8s", Channel: channel},
    40→			{Name: "kubectl", Channel: "stable"},
    41→		},
    42→	}
    43→}
    44→
    45→// MicroK8s represents a MicroK8s install on a given machine.
    46→type MicroK8s struct {
    47→	Channel string
    48→	Addons  []string
    49→
    50→	bootstrap            bool
    51→	modelDefaults        map[string]string
    52→	bootstrapConstraints map[string]string
    53→
    54→	system system.Worker
    55→	snaps  []*system.Snap
    56→}
    57→
    58→// Prepare installs and configures MicroK8s such that it can work in testing environments.
    59→// This includes installing the snap, enabling the user who ran concierge to interact
    60→// with MicroK8s without sudo, and sets up the user's kubeconfig file.
    61→func (m *MicroK8s) Prepare() error {
    62→	err := m.install()
    63→	if err != nil {
    64→		return fmt.Errorf("failed to install MicroK8s: %w", err)
    65→	}
    66→
    67→	err = m.init()
    68→	if err != nil {
    69→		return fmt.Errorf("failed to initialize MicroK8s: %w", err)
    70→	}
    71→
    72→	err = m.enableAddons()
    73→	if err != nil {
    74→		return fmt.Errorf("failed to enable MicroK8s addons: %w", err)
    75→	}
    76→
    77→	err = m.enableNonRootUserControl()
    78→	if err != nil {
    79→		return fmt.Errorf("failed to enable non-root MicroK8s access: %w", err)
    80→	}
    81→
    82→	err = m.setupKubectl()
    83→	if err != nil {
    84→		return fmt.Errorf("failed to setup kubectl for MicroK8s: %w", err)
    85→	}
    86→
    87→	slog.Info("Prepared provider", "provider", m.Name())
    88→
    89→	return nil
    90→}
    91→
    92→// Name reports the name of the provider for Concierge's purposes.
    93→func (m *MicroK8s) Name() string { return "microk8s" }
    94→
    95→// Bootstrap reports whether a Juju controller should be bootstrapped onto the provider.
    96→func (m *MicroK8s) Bootstrap() bool { return m.bootstrap }
    97→
    98→// CloudName reports the name of the provider as Juju sees it.
    99→func (m *MicroK8s) CloudName() string { return "microk8s" }
   100→
   101→// GroupName reports the name of the POSIX group with permission to use MicroK8s.
   102→func (m *MicroK8s) GroupName() string {
   103→	if strings.Contains(m.Channel, "strict") {
   104→		return "snap_microk8s"
   105→	} else {
   106→		return "microk8s"
   107→	}
   108→}
   109→
   110→// Credentials reports the section of Juju's credentials.yaml for the provider
   111→func (m MicroK8s) Credentials() map[string]interface{} { return nil }
   112→
   113→// ModelDefaults reports the Juju model-defaults specific to the provider.
   114→func (m *MicroK8s) ModelDefaults() map[string]string { return m.modelDefaults }
   115→
   116→// BootstrapConstraints reports the Juju bootstrap-constraints specific to the provider.
   117→func (m *MicroK8s) BootstrapConstraints() map[string]string { return m.bootstrapConstraints }
   118→
   119→// Remove uninstalls MicroK8s and kubectl.
   120→func (m *MicroK8s) Restore() error {
   121→	snapHandler := packages.NewSnapHandler(m.system, m.snaps)
   122→
   123→	err := snapHandler.Restore()
   124→	if err != nil {
   125→		return err
   126→	}
   127→
   128→	err = m.system.RemoveAllHome(".kube")
   129→	if err != nil {
   130→		return fmt.Errorf("failed to remove '.kube' from user's home directory: %w", err)
   131→	}
   132→
   133→	slog.Info("Removed provider", "provider", m.Name())
   134→
   135→	return nil
   136→}
   137→
   138→// install ensures that MicroK8s is installed.
   139→func (m *MicroK8s) install() error {
   140→	snapHandler := packages.NewSnapHandler(m.system, m.snaps)
   141→
   142→	err := snapHandler.Prepare()
   143→	if err != nil {
   144→		return err
   145→	}
   146→
   147→	return nil
   148→}
   149→
   150→// init ensures that MicroK8s is installed, minimally configured, and ready.

<system-reminder>
Whenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.
</system-reminder>

   150→// init ensures that MicroK8s is installed, minimally configured, and ready.
   151→func (m *MicroK8s) init() error {
   152→	cmd := system.NewCommand("microk8s", []string{"status", "--wait-ready", "--timeout", "270"})
   153→	_, err := m.system.RunWithRetries(cmd, (5 * time.Minute))
   154→
   155→	return err
   156→}
   157→
   158→// enableAddons iterates over the specified addons, enabling and configuring them.
   159→func (m *MicroK8s) enableAddons() error {
   160→	for _, addon := range m.Addons {
   161→		enableArg := addon
   162→
   163→		// If the addon is MetalLB, add the predefined IP range
   164→		if addon == "metallb" {
   165→			enableArg = "metallb:10.64.140.43-10.64.140.49"
   166→		}
   167→
   168→		cmd := system.NewCommand("microk8s", []string{"enable", enableArg})
   169→		_, err := m.system.RunWithRetries(cmd, (5 * time.Minute))
   170→		if err != nil {
   171→			return fmt.Errorf("failed to enable MicroK8s addon '%s': %w", addon, err)
   172→		}
   173→	}
   174→
   175→	return nil
   176→}
   177→
   178→// enableNonRootUserControl ensures the current user is in the correct POSIX group
   179→// that allows them to interact with MicroK8s.
   180→func (m *MicroK8s) enableNonRootUserControl() error {
   181→	username := m.system.User().Username
   182→
   183→	cmd := system.NewCommand("usermod", []string{"-a", "-G", m.GroupName(), username})
   184→
   185→	_, err := m.system.Run(cmd)
   186→	if err != nil {
   187→		return fmt.Errorf("failed to add user '%s' to group 'microk8s': %w", username, err)
   188→	}
   189→
   190→	return nil
   191→}
   192→
   193→// setupKubectl both installs the kubectl snap, and writes the relevant kubeconfig
   194→// file to the user's home directory such that kubectl works with MicroK8s.
   195→func (m *MicroK8s) setupKubectl() error {
   196→	cmd := system.NewCommand("microk8s", []string{"config"})
   197→	result, err := m.system.Run(cmd)
   198→	if err != nil {
   199→		return fmt.Errorf("failed to fetch MicroK8s configuration: %w", err)
   200→	}
   201→
   202→	return m.system.WriteHomeDirFile(path.Join(".kube", "config"), result)
   203→}
   204→
   205→// Try to compute the "correct" default channel. Concierge prefers that the 'strict'
   206→// variants are installed, so we filter available channels and sort descending by
   207→// version. If the list cannot be retrieved, default to a know good version.
   208→func computeDefaultChannel(s system.Worker) string {
   209→	channels, err := s.SnapChannels("microk8s")
   210→	if err != nil {
   211→		return defaultMicroK8sChannel
   212→	}
   213→
   214→	for _, c := range channels {
   215→		if strings.Contains(c, "strict") && strings.Contains(c, "stable") {
   216→			return c
   217→		}
   218→	}
   219→
   220→	return defaultMicroK8sChannel
   221→}
   222→

<system-reminder>
Whenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.
</system-reminder>

     1→package providers
     2→
     3→import (
     4→	"fmt"
     5→	"log/slog"
     6→	"path"
     7→	"strings"
     8→	"time"
     9→
    10→	"golang.org/x/sync/errgroup"
    11→
    12→	"github.com/canonical/concierge/internal/config"
    13→	"github.com/canonical/concierge/internal/packages"
    14→	"github.com/canonical/concierge/internal/system"
    15→)
    16→
    17→// Default channel from which K8s is installed.
    18→const defaultK8sChannel = "1.32-classic/stable"
    19→
    20→// NewK8s constructs a new K8s provider instance.
    21→func NewK8s(r system.Worker, config *config.Config) *K8s {
    22→	var channel string
    23→
    24→	if config.Overrides.K8sChannel != "" {
    25→		channel = config.Overrides.K8sChannel
    26→	} else if config.Providers.K8s.Channel != "" {
    27→		channel = config.Providers.K8s.Channel
    28→	} else {
    29→		channel = defaultK8sChannel
    30→	}
    31→
    32→	return &K8s{
    33→		Channel:              channel,
    34→		Features:             config.Providers.K8s.Features,
    35→		bootstrap:            config.Providers.K8s.Bootstrap,
    36→		modelDefaults:        config.Providers.K8s.ModelDefaults,
    37→		bootstrapConstraints: config.Providers.K8s.BootstrapConstraints,
    38→		system:               r,
    39→		debs: []*packages.Deb{
    40→			{Name: "iptables"},
    41→		},
    42→		snaps: []*system.Snap{
    43→			{Name: "k8s", Channel: channel},
    44→			{Name: "kubectl", Channel: "stable"},
    45→		},
    46→	}
    47→}
    48→
    49→// K8s represents a K8s install on a given machine.
    50→type K8s struct {
    51→	Channel  string
    52→	Features map[string]map[string]string
    53→
    54→	bootstrap            bool
    55→	modelDefaults        map[string]string
    56→	bootstrapConstraints map[string]string
    57→
    58→	system system.Worker
    59→	debs   []*packages.Deb
    60→	snaps  []*system.Snap
    61→}
    62→
    63→// Prepare installs and configures K8s such that it can work in testing environments.
    64→// This includes installing the snap, enabling the user who ran concierge to interact
    65→// with K8s without sudo, and sets up the user's kubeconfig file.
    66→func (k *K8s) Prepare() error {
    67→	err := k.install()
    68→	if err != nil {
    69→		return fmt.Errorf("failed to install K8s: %w", err)
    70→	}
    71→
    72→	err = k.init()
    73→	if err != nil {
    74→		return fmt.Errorf("failed to install K8s: %w", err)
    75→	}
    76→
    77→	err = k.configureFeatures()
    78→	if err != nil {
    79→		return fmt.Errorf("failed to enable K8s features: %w", err)
    80→	}
    81→
    82→	err = k.setupKubectl()
    83→	if err != nil {
    84→		return fmt.Errorf("failed to setup kubectl for K8s: %w", err)
    85→	}
    86→
    87→	slog.Info("Prepared provider", "provider", k.Name())
    88→
    89→	return nil
    90→}
    91→
    92→// Name reports the name of the provider for Concierge's purposes.
    93→func (k *K8s) Name() string { return "k8s" }
    94→
    95→// Bootstrap reports whether a Juju controller should be bootstrapped onto the provider.
    96→func (k *K8s) Bootstrap() bool { return k.bootstrap }
    97→
    98→// CloudName reports the name of the provider as Juju sees it.
    99→func (k *K8s) CloudName() string { return "k8s" }
   100→
   101→// GroupName reports the name of the POSIX group with permission to use K8s.
   102→func (k *K8s) GroupName() string { return "" }
   103→
   104→// Credentials reports the section of Juju's credentials.yaml for the provider
   105→func (m K8s) Credentials() map[string]interface{} { return nil }
   106→
   107→// ModelDefaults reports the Juju model-defaults specific to the provider.
   108→func (m *K8s) ModelDefaults() map[string]string { return m.modelDefaults }
   109→
   110→// BootstrapConstraints reports the Juju bootstrap-constraints specific to the provider.
   111→func (m *K8s) BootstrapConstraints() map[string]string { return m.bootstrapConstraints }
   112→
   113→// Remove uninstalls K8s and kubectl.
   114→func (k *K8s) Restore() error {
   115→	snapHandler := packages.NewSnapHandler(k.system, k.snaps)
   116→
   117→	err := snapHandler.Restore()
   118→	if err != nil {
   119→		return err
   120→	}
   121→
   122→	err = k.system.RemoveAllHome(".kube")
   123→	if err != nil {
   124→		return fmt.Errorf("failed to remove '.kube' from user's home directory: %w", err)
   125→	}
   126→
   127→	slog.Info("Removed provider", "provider", k.Name())
   128→
   129→	return nil
   130→}
   131→
   132→// install ensures that K8s is installed.
   133→func (k *K8s) install() error {
   134→	var eg errgroup.Group
   135→
   136→	// Prepare/restore package handlers concurrently
   137→	debHandler := packages.NewDebHandler(k.system, k.debs)
   138→	snapHandler := packages.NewSnapHandler(k.system, k.snaps)
   139→
   140→	eg.Go(func() error {
   141→		// In some cases, iptables is not present on the system. In those cases,
   142→		// make sure it's installed.
   143→		cmd := system.NewCommand("which", []string{"iptables"})
   144→		_, err := k.system.Run(cmd)
   145→		if err != nil {
   146→			err := debHandler.Prepare()
   147→			if err != nil {
   148→				return err
   149→			}
   150→		}
   151→		return nil
   152→	})
   153→
   154→	eg.Go(func() error {
   155→		err := snapHandler.Prepare()
   156→		if err != nil {
   157→			return err
   158→		}
   159→		return nil
   160→	})
   161→
   162→	if err := eg.Wait(); err != nil {
   163→		return err
   164→	}
   165→
   166→	return nil
   167→}
   168→
   169→// init ensures that K8s is installed, minimally configured, and ready.
   170→func (k *K8s) init() error {
   171→	if k.needsBootstrap() {
   172→		cmd := system.NewCommand("k8s", []string{"bootstrap"})
   173→		_, err := k.system.RunWithRetries(cmd, (5 * time.Minute))
   174→		if err != nil {
   175→			return err
   176→		}
   177→	}
   178→
   179→	cmd := system.NewCommand("k8s", []string{"status", "--wait-ready", "--timeout", "270s"})
   180→	_, err := k.system.RunWithRetries(cmd, (5 * time.Minute))
   181→
   182→	return err
   183→}
   184→
   185→// configureFeatures iterates over the specified features, enabling and configuring them.
   186→func (k *K8s) configureFeatures() error {
   187→	for featureName, conf := range k.Features {
   188→		for key, value := range conf {
   189→			featureConfig := fmt.Sprintf("%s.%s=%s", featureName, key, value)
   190→
   191→			cmd := system.NewCommand("k8s", []string{"set", featureConfig})
   192→			_, err := k.system.Run(cmd)
   193→			if err != nil {
   194→				return fmt.Errorf("failed to set K8s feature config '%s': %w", featureConfig, err)
   195→			}
   196→		}
   197→
   198→		cmd := system.NewCommand("k8s", []string{"enable", featureName})
   199→		_, err := k.system.RunWithRetries(cmd, (5 * time.Minute))
   200→		if err != nil {

<system-reminder>
Whenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.
</system-reminder>

   200→		if err != nil {
   201→			return fmt.Errorf("failed to enable K8s addon '%s': %w", featureName, err)
   202→		}
   203→	}
   204→
   205→	return nil
   206→}
   207→
   208→// setupKubectl both installs the kubectl snap, and writes the relevant kubeconfig
   209→// file to the user's home directory such that kubectl works with K8s.
   210→func (k *K8s) setupKubectl() error {
   211→	cmd := system.NewCommand("k8s", []string{"kubectl", "config", "view", "--raw"})
   212→	result, err := k.system.Run(cmd)
   213→	if err != nil {
   214→		return fmt.Errorf("failed to fetch K8s configuration: %w", err)
   215→	}
   216→
   217→	return k.system.WriteHomeDirFile(path.Join(".kube", "config"), result)
   218→}
   219→
   220→func (k *K8s) needsBootstrap() bool {
   221→	cmd := system.NewCommand("k8s", []string{"status"})
   222→	output, err := k.system.Run(cmd)
   223→
   224→	if err != nil && strings.Contains(string(output), "Error: The node is not part of a Kubernetes cluster.") {
   225→		return true
   226→	}
   227→
   228→	return false
   229→}
   230→

<system-reminder>
Whenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.
</system-reminder>

File created successfully at: /home/ubuntu/concierge/src/concierge/providers/microk8s.py

File created successfully at: /home/ubuntu/concierge/src/concierge/providers/k8s.py

Todos have been modified successfully. Ensure that you continue to use the todo list to track your progress. Please proceed with the current tasks if applicable

File created successfully at: /home/ubuntu/concierge/src/concierge/juju/credentials.py

File created successfully at: /home/ubuntu/concierge/src/concierge/juju/handler.py

File created successfully at: /home/ubuntu/concierge/src/concierge/providers/factory.py

/home/ubuntu/concierge/cmd/main.go
/home/ubuntu/concierge/cmd/root.go
/home/ubuntu/concierge/cmd/restore.go
/home/ubuntu/concierge/cmd/status.go
/home/ubuntu/concierge/cmd/prepare.go

     1→package cmd
     2→
     3→import (
     4→	"fmt"
     5→
     6→	"github.com/canonical/concierge/internal/concierge"
     7→	"github.com/canonical/concierge/internal/config"
     8→	"github.com/spf13/cobra"
     9→)
    10→
    11→// prepareCmd constructs the `prepare` subcommand
    12→func prepareCmd() *cobra.Command {
    13→	cmd := &cobra.Command{
    14→		Use:   "prepare",
    15→		Short: "Provision the machine according to the configuration.",
    16→		Long: `Provision the machine according to the configuration.
    17→
    18→Configuration is by flags/environment variables, or by configuration file. The configuration file
    19→must be in the current working directory and named 'concierge.yaml', or the path specified using
    20→the '-c' flag.
    21→
    22→There are 3 presets available by default: 'machine', 'k8s' and 'dev'.
    23→
    24→Some aspects of presets and config files can be overridden using flags such as '--juju-channel'.
    25→Each of the override flags has an environment variable equivalent, 
    26→such as 'CONCIERGE_JUJU_CHANNEL'.
    27→
    28→More information at https://github.com/canonical/concierge.
    29→`,
    30→		SilenceErrors: true,
    31→		SilenceUsage:  true,
    32→		PreRunE: func(cmd *cobra.Command, args []string) error {
    33→			parseLoggingFlags(cmd.Flags())
    34→			return checkUser()
    35→		},
    36→		RunE: func(cmd *cobra.Command, args []string) error {
    37→			flags := cmd.Flags()
    38→
    39→			configFile, _ := flags.GetString("config")
    40→			preset, _ := flags.GetString("preset")
    41→
    42→			// Concierge cannot merge a preset & manual configuration
    43→			if len(preset) > 0 && len(configFile) > 0 {
    44→				return fmt.Errorf("cannot proceed with both preset and configuration file specified")
    45→			}
    46→
    47→			conf, err := config.NewConfig(cmd, flags)
    48→			if err != nil {
    49→				return fmt.Errorf("failed to configure concierge: %w", err)
    50→			}
    51→
    52→			mgr, err := concierge.NewManager(conf)
    53→			if err != nil {
    54→				return err
    55→			}
    56→
    57→			return mgr.Prepare()
    58→		},
    59→	}
    60→
    61→	flags := cmd.Flags()
    62→	flags.StringP("config", "c", "", "path to a specific config file to use")
    63→	flags.StringP("preset", "p", "", "config preset to use (k8s | machine | dev)")
    64→	flags.Bool("disable-juju", false, "disable the installation and bootstrap of juju")
    65→	flags.String("juju-channel", "", "override the snap channel for juju")
    66→	flags.String("k8s-channel", "", "override snap channel for the k8s snap")
    67→	flags.String("microk8s-channel", "", "override snap channel for microk8s")
    68→	flags.String("lxd-channel", "", "override snap channel for lxd")
    69→	flags.String("charmcraft-channel", "", "override snap channel for charmcraft")
    70→	flags.String("snapcraft-channel", "", "override snap channel for snapcraft")
    71→	flags.String("rockcraft-channel", "", "override snap channel for rockcraft")
    72→
    73→	flags.String("google-credential-file", "", "override path to google credentials file")
    74→
    75→	// Additional package specification
    76→	flags.StringSlice(
    77→		"extra-snaps",
    78→		[]string{},
    79→		"comma-separated list of extra snaps to install. E.g. 'astral-uv/latest/edge,jhack'",
    80→	)
    81→
    82→	flags.StringSlice(
    83→		"extra-debs",
    84→		[]string{},
    85→		"comma-separated list of extra debs to install. E.g. 'make,python3-tox'",
    86→	)
    87→
    88→	return cmd
    89→}
    90→

<system-reminder>
Whenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.
</system-reminder>

/home/ubuntu/concierge/internal/concierge/executable.go
/home/ubuntu/concierge/internal/concierge/plan_validators.go
/home/ubuntu/concierge/internal/concierge/plan_test.go
/home/ubuntu/concierge/internal/concierge/manager.go
/home/ubuntu/concierge/internal/concierge/plan.go
/home/ubuntu/concierge/internal/concierge/plan_validators_test.go

     1→package concierge
     2→
     3→import (
     4→	"fmt"
     5→	"log/slog"
     6→	"path"
     7→
     8→	"github.com/canonical/concierge/internal/config"
     9→	"github.com/canonical/concierge/internal/system"
    10→	"gopkg.in/yaml.v3"
    11→)
    12→
    13→// NewManager constructs a new instance of the concierge manager.
    14→func NewManager(config *config.Config) (*Manager, error) {
    15→	system, err := system.NewSystem(config.Trace)
    16→	if err != nil {
    17→		return nil, fmt.Errorf("failed to initialise system: %w", err)
    18→	}
    19→
    20→	return &Manager{
    21→		config: config,
    22→		system: system,
    23→	}, nil
    24→}
    25→
    26→// Manager is a construct for controlling the main execution of concierge.
    27→type Manager struct {
    28→	Plan   *Plan
    29→	system system.Worker
    30→	config *config.Config
    31→}
    32→
    33→// Prepare runs the steps required for provisioning the machine according to
    34→// the config.
    35→func (m *Manager) Prepare() error {
    36→	err := m.execute(PrepareAction)
    37→
    38→	// Record the status of the provisioning process in the cached plan.
    39→	var recordErr error
    40→	if err != nil {
    41→		recordErr = m.recordRuntimeConfig(config.Failed)
    42→	} else {
    43→		recordErr = m.recordRuntimeConfig(config.Succeeded)
    44→	}
    45→
    46→	// If the recording of the status failed, log the error and move on.
    47→	if recordErr != nil {
    48→		slog.Error("failed to record concierge status", "error", recordErr.Error())
    49→	}
    50→
    51→	return err
    52→}
    53→
    54→// Restore reverses the provisioning process, returning the machine to its.
    55→func (m *Manager) Restore() error {
    56→	return m.execute(RestoreAction)
    57→}
    58→
    59→// execute runs the overlord with a specified action.
    60→func (m *Manager) execute(action string) error {
    61→	switch action {
    62→	case PrepareAction:
    63→		err := m.recordRuntimeConfig(config.Provisioning)
    64→		if err != nil {
    65→			return fmt.Errorf("failed to record config file: %w", err)
    66→		}
    67→	case RestoreAction:
    68→		err := m.loadRuntimeConfig()
    69→		if err != nil {
    70→			return fmt.Errorf("failed to load previous runtime configuration: %w", err)
    71→		}
    72→	default:
    73→		return fmt.Errorf("unknown handler action: %s", action)
    74→	}
    75→
    76→	// Create the installation/preparation plan
    77→	m.Plan = NewPlan(m.config, m.system)
    78→	return m.Plan.Execute(action)
    79→}
    80→
    81→// recordRuntimeConfig dumps the current manager config into a file in the user's home
    82→// directory, such that it can be read later and used to restore the machine.
    83→func (m *Manager) recordRuntimeConfig(status config.Status) error {
    84→	m.config.Status = status
    85→	configYaml, err := yaml.Marshal(m.config)
    86→	if err != nil {
    87→		return fmt.Errorf("failed to marshal config file as yaml: %w", err)
    88→	}
    89→
    90→	filepath := path.Join(".cache", "concierge", "concierge.yaml")
    91→	err = m.system.WriteHomeDirFile(filepath, configYaml)
    92→	if err != nil {
    93→		return fmt.Errorf("failed to write runtime config file: %w", err)
    94→	}
    95→
    96→	slog.Debug("Merged runtime configuration saved", "path", filepath)
    97→
    98→	return nil
    99→}
   100→
   101→// loadRuntimeConfig loads a previously cached concierge runtime configuration.
   102→func (m *Manager) loadRuntimeConfig() error {
   103→	recordPath := path.Join(".cache", "concierge", "concierge.yaml")
   104→
   105→	contents, err := m.system.ReadHomeDirFile(recordPath)
   106→	if err != nil {
   107→		return fmt.Errorf("failed to read file: %w", err)
   108→	}
   109→
   110→	var config config.Config
   111→	err = yaml.Unmarshal(contents, &config)
   112→	if err != nil {
   113→		return fmt.Errorf("failed to parse file: %w", err)
   114→	}
   115→
   116→	m.config = &config
   117→
   118→	slog.Debug("Loaded previous runtime configuration", "path", recordPath)
   119→
   120→	return nil
   121→}
   122→
   123→// Status reads the concierge status on the machine.
   124→func (m *Manager) Status() (config.Status, error) {
   125→	recordPath := path.Join(".cache", "concierge", "concierge.yaml")
   126→
   127→	contents, err := m.system.ReadHomeDirFile(recordPath)
   128→	if err != nil {
   129→		return 0, fmt.Errorf("concierge has not prepared this machine and cannot report its status")
   130→	}
   131→
   132→	var config config.Config
   133→	err = yaml.Unmarshal(contents, &config)
   134→	if err != nil {
   135→		return 0, fmt.Errorf("failed to parse file: %w", err)
   136→	}
   137→
   138→	return config.Status, nil
   139→}
   140→

<system-reminder>
Whenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.
</system-reminder>

     1→package concierge
     2→
     3→import (
     4→	"fmt"
     5→	"log/slog"
     6→
     7→	"github.com/canonical/concierge/internal/config"
     8→	"github.com/canonical/concierge/internal/juju"
     9→	"github.com/canonical/concierge/internal/packages"
    10→	"github.com/canonical/concierge/internal/providers"
    11→	"github.com/canonical/concierge/internal/system"
    12→	"golang.org/x/sync/errgroup"
    13→)
    14→
    15→// Plan represents a set of packages and providers that are to be prepared/restored.
    16→type Plan struct {
    17→	Providers []providers.Provider
    18→	Snaps     []*system.Snap
    19→	Debs      []*packages.Deb
    20→
    21→	config *config.Config
    22→	system system.Worker
    23→}
    24→
    25→// NewPlan constructs a new plan consisting of snaps/debs/providers & juju.
    26→func NewPlan(cfg *config.Config, worker system.Worker) *Plan {
    27→	plan := &Plan{config: cfg, system: worker}
    28→
    29→	for name, snapConfig := range cfg.Host.Snaps {
    30→		snap := system.NewSnap(name, snapConfig.Channel, snapConfig.Connections)
    31→		// Check if the channel has been overridden by a CLI argument/env var
    32→		channelOverride := getSnapChannelOverride(cfg, snap.Name)
    33→		if channelOverride != "" {
    34→			snap.Channel = channelOverride
    35→		}
    36→		plan.Snaps = append(plan.Snaps, snap)
    37→	}
    38→
    39→	// Add the ExtraSnaps specified in the overrides
    40→	for _, s := range cfg.Overrides.ExtraSnaps {
    41→		snap := system.NewSnapFromString(s)
    42→		// Check if the channel has been overridden by a CLI argument/env var
    43→		channelOverride := getSnapChannelOverride(cfg, snap.Name)
    44→		if channelOverride != "" {
    45→			snap.Channel = channelOverride
    46→		}
    47→		plan.Snaps = append(plan.Snaps, snap)
    48→	}
    49→
    50→	for _, p := range append(cfg.Host.Packages, cfg.Overrides.ExtraDebs...) {
    51→		plan.Debs = append(plan.Debs, packages.NewDeb(p))
    52→	}
    53→
    54→	for _, providerName := range providers.SupportedProviders {
    55→		if p := providers.NewProvider(providerName, worker, cfg); p != nil {
    56→			plan.Providers = append(plan.Providers, p)
    57→
    58→			// Warn if the configuration specifies to bootstrap the provider, but the config or
    59→			// overrides disable Juju.
    60→			if cfg.Overrides.DisableJuju && p.Bootstrap() {
    61→				slog.Warn("provider will not be bootstrapped because juju is disabled", "provider", providerName)
    62→			}
    63→		}
    64→	}
    65→
    66→	if cfg.Overrides.DisableJuju {
    67→		plan.config.Juju.Disable = true
    68→	}
    69→
    70→	return plan
    71→}
    72→
    73→// Execute either prepares or restores a given plan
    74→func (p *Plan) Execute(action string) error {
    75→	err := p.validate()
    76→	if err != nil {
    77→		return fmt.Errorf("failed to validate plan: %w", err)
    78→	}
    79→
    80→	var eg errgroup.Group
    81→
    82→	snapHandler := packages.NewSnapHandler(p.system, p.Snaps)
    83→	debHandler := packages.NewDebHandler(p.system, p.Debs)
    84→
    85→	// Prepare/restore package handlers concurrently
    86→	eg.Go(func() error { return DoAction(snapHandler, action) })
    87→	eg.Go(func() error { return DoAction(debHandler, action) })
    88→	if err := eg.Wait(); err != nil {
    89→		return err
    90→	}
    91→
    92→	// Prepare/restore providers concurrently
    93→	for _, provider := range p.Providers {
    94→		eg.Go(func() error { return DoAction(provider, action) })
    95→	}
    96→	if err := eg.Wait(); err != nil {
    97→		return err
    98→	}
    99→
   100→	// Skip Juju handler if Juju is disabled in the config
   101→	if p.config.Juju.Disable {
   102→		return nil
   103→	}
   104→
   105→	// Prepare/Restore juju controllers
   106→	jujuHandler := juju.NewJujuHandler(p.config, p.system, p.Providers)
   107→	err = DoAction(jujuHandler, action)
   108→	if err != nil {
   109→		return fmt.Errorf("failed to prepare Juju: %w", err)
   110→	}
   111→
   112→	return nil
   113→}
   114→
   115→// validate returns an error if the generated plan contains errors that would prevent a successful
   116→// configuration of the machine.
   117→func (p *Plan) validate() error {
   118→	var eg errgroup.Group
   119→
   120→	// Run the validators in parallel in an errgroup
   121→	for _, v := range planValidators {
   122→		eg.Go(func() error { return v(p) })
   123→	}
   124→	if err := eg.Wait(); err != nil {
   125→		return err
   126→	}
   127→
   128→	return nil
   129→}
   130→
   131→// getSnapChannelOverride takes the name of a snap. If the snap's version
   132→// is overridden, the overridden channel is returned.
   133→func getSnapChannelOverride(config *config.Config, snap string) string {
   134→	switch snap {
   135→	case "charmcraft":
   136→		return config.Overrides.CharmcraftChannel
   137→	case "snapcraft":
   138→		return config.Overrides.SnapcraftChannel
   139→	case "rockcraft":
   140→		return config.Overrides.RockcraftChannel
   141→	default:
   142→		return ""
   143→	}
   144→}
   145→

<system-reminder>
Whenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.
</system-reminder>

     1→package concierge
     2→
     3→import "fmt"
     4→
     5→const (
     6→	RestoreAction string = "restore"
     7→	PrepareAction string = "prepare"
     8→)
     9→
    10→// Executable is an interface that represents any struct implementing the Prepare/Restore methods.
    11→type Executable interface {
    12→	Prepare() error
    13→	Restore() error
    14→}
    15→
    16→// DoAction takes an Executable, and calls either Prepare() or Restore() according
    17→// to the action parameter.
    18→func DoAction(executable Executable, action string) error {
    19→	switch action {
    20→	case PrepareAction:
    21→		return executable.Prepare()
    22→	case RestoreAction:
    23→		return executable.Restore()
    24→	default:
    25→		return fmt.Errorf("unknown executor action: %s", action)
    26→	}
    27→}
    28→

<system-reminder>
Whenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.
</system-reminder>

File created successfully at: /home/ubuntu/concierge/src/concierge/core/manager.py

File created successfully at: /home/ubuntu/concierge/src/concierge/core/plan.py

The file /home/ubuntu/concierge/src/concierge/cli/commands/prepare.py has been updated. Here's the result of running `cat -n` on a snippet of the edited file:
     1→"""Prepare command implementation."""
     2→
     3→import structlog
     4→
     5→from concierge.config.loader import load_config
     6→from concierge.config.models import ConfigOverrides
     7→from concierge.core.manager import Manager
     8→
     9→logger = structlog.get_logger()
    10→
    11→
    12→async def run_prepare(
    13→    config_file: str,
    14→    preset: str,
    15→    overrides: ConfigOverrides,
    16→) -> None:
    17→    """Execute the prepare command to provision the environment.
    18→
    19→    Args:
    20→        config_file: Path to configuration file
    21→        preset: Preset name to use
    22→        overrides: Configuration overrides from CLI/env
    23→    """
    24→    logger.info("Starting environment preparation")
    25→
    26→    # Load configuration
    27→    config = load_config(config_file=config_file, preset=preset, overrides=overrides)
    28→
    29→    logger.info(
    30→        "Configuration loaded",
    31→        juju_enabled=not config.juju.disable,
    32→        providers={
    33→            "lxd": config.providers.lxd.enable,
    34→            "microk8s": config.providers.microk8s.enable,
    35→            "k8s": config.providers.k8s.enable,
    36→            "google": config.providers.google.enable,
    37→        },
    38→    )
    39→
    40→    # Create manager and execute preparation
    41→    manager = Manager(config, trace=config.trace)
    42→    await manager.prepare()
    43→
    44→    logger.info("Environment preparation completed successfully")
    45→

The file /home/ubuntu/concierge/src/concierge/cli/commands/restore.py has been updated. Here's the result of running `cat -n` on a snippet of the edited file:
     1→"""Restore command implementation."""
     2→
     3→import structlog
     4→
     5→from concierge.config.loader import load_config
     6→from concierge.core.manager import Manager
     7→
     8→logger = structlog.get_logger()
     9→
    10→
    11→async def run_restore(config_file: str, preset: str) -> None:
    12→    """Execute the restore command to revert the environment.
    13→
    14→    Args:
    15→        config_file: Path to configuration file
    16→        preset: Preset name to use
    17→    """
    18→    logger.info("Starting environment restoration")
    19→
    20→    # Load configuration (though Manager will reload from cache)
    21→    config = load_config(config_file=config_file, preset=preset)
    22→
    23→    # Create manager and execute restoration
    24→    manager = Manager(config)
    25→    await manager.restore()
    26→
    27→    logger.info("Environment restoration completed successfully")
    28→

The file /home/ubuntu/concierge/src/concierge/cli/commands/status.py has been updated. Here's the result of running `cat -n` on a snippet of the edited file:
     1→"""Status command implementation."""
     2→
     3→import asyncio
     4→
     5→import structlog
     6→
     7→from concierge.config.models import ConciergeConfig
     8→from concierge.core.manager import Manager
     9→
    10→logger = structlog.get_logger()
    11→
    12→
    13→def run_status() -> None:
    14→    """Show the status of the Concierge environment."""
    15→    logger.info("Checking environment status")
    16→
    17→    # Run async status check
    18→    asyncio.run(_async_status())
    19→
    20→
    21→async def _async_status() -> None:
    22→    """Async implementation of status check."""
    23→    # Create a minimal config for manager (will be loaded from cache)
    24→    config = ConciergeConfig()
    25→    manager = Manager(config)
    26→
    27→    try:
    28→        status = await manager.status()
    29→        print(f"Concierge status: {status.value}")
    30→    except FileNotFoundError as e:
    31→        print(f"Error: {e}")
    32→        logger.error("No previous Concierge preparation found")
    33→

Todos have been modified successfully. Ensure that you continue to use the todo list to track your progress. Please proceed with the current tasks if applicable

✓ All imports successful

 Usage: python -m concierge.cli.app [OPTIONS] COMMAND [ARGS]...                 
                                                                                
 Provision and manage charm development environments                            
                                                                                
╭─ Options ────────────────────────────────────────────────────────────────────╮
│ --verbose             -v        Enable verbose logging                       │
│ --trace                         Enable trace logging                         │
│ --install-completion            Install completion for the current shell.    │
│ --show-completion               Show completion for the current shell, to    │
│                                 copy it or customize the installation.       │
│ --help                          Show this message and exit.                  │
╰──────────────────────────────────────────────────────────────────────────────╯
╭─ Commands ───────────────────────────────────────────────────────────────────╮
│ prepare   Provision a charm development environment.                         │
│ restore   Restore the system to its pre-Concierge state.                     │
│ status    Show the status of the Concierge environment.                      │
╰──────────────────────────────────────────────────────────────────────────────╯

Todos have been modified successfully. Ensure that you continue to use the todo list to track your progress. Please proceed with the current tasks if applicable

* main

On branch main
Your branch is up to date with 'origin/main'.

Changes to be committed:
  (use "git restore --staged <file>..." to unstage)
	new file:   pyproject.toml
	new file:   src/concierge/__init__.py
	new file:   src/concierge/__pycache__/__init__.cpython-314.pyc
	new file:   src/concierge/cli/__init__.py
	new file:   src/concierge/cli/__pycache__/__init__.cpython-314.pyc
	new file:   src/concierge/cli/__pycache__/app.cpython-314.pyc
	new file:   src/concierge/cli/app.py
	new file:   src/concierge/cli/commands/__init__.py
	new file:   src/concierge/cli/commands/prepare.py
	new file:   src/concierge/cli/commands/restore.py
	new file:   src/concierge/cli/commands/status.py
	new file:   src/concierge/config/__init__.py
	new file:   src/concierge/config/__pycache__/__init__.cpython-314.pyc
	new file:   src/concierge/config/__pycache__/models.cpython-314.pyc
	new file:   src/concierge/config/loader.py
	new file:   src/concierge/config/models.py
	new file:   src/concierge/config/presets.py
	new file:   src/concierge/core/__init__.py
	new file:   src/concierge/core/__pycache__/__init__.cpython-314.pyc
	new file:   src/concierge/core/__pycache__/executable.cpython-314.pyc
	new file:   src/concierge/core/__pycache__/manager.cpython-314.pyc
	new file:   src/concierge/core/__pycache__/plan.cpython-314.pyc
	new file:   src/concierge/core/executable.py
	new file:   src/concierge/core/logging.py
	new file:   src/concierge/core/manager.py
	new file:   src/concierge/core/plan.py
	new file:   src/concierge/juju/__init__.py
	new file:   src/concierge/juju/__pycache__/__init__.cpython-314.pyc
	new file:   src/concierge/juju/__pycache__/credentials.cpython-314.pyc
	new file:   src/concierge/juju/__pycache__/handler.cpython-314.pyc
	new file:   src/concierge/juju/credentials.py
	new file:   src/concierge/juju/handler.py
	new file:   src/concierge/packages/__init__.py
	new file:   src/concierge/packages/__pycache__/__init__.cpython-314.pyc
	new file:   src/concierge/packages/__pycache__/deb_handler.cpython-314.pyc
	new file:   src/concierge/packages/__pycache__/snap_handler.cpython-314.pyc
	new file:   src/concierge/packages/deb_handler.py
	new file:   src/concierge/packages/snap_handler.py
	new file:   src/concierge/providers/__init__.py
	new file:   src/concierge/providers/__pycache__/__init__.cpython-314.pyc
	new file:   src/concierge/providers/__pycache__/base.cpython-314.pyc
	new file:   src/concierge/providers/__pycache__/factory.cpython-314.pyc
	new file:   src/concierge/providers/__pycache__/google.cpython-314.pyc
	new file:   src/concierge/providers/__pycache__/k8s.cpython-314.pyc
	new file:   src/concierge/providers/__pycache__/lxd.cpython-314.pyc
	new file:   src/concierge/providers/__pycache__/microk8s.cpython-314.pyc
	new file:   src/concierge/providers/base.py
	new file:   src/concierge/providers/factory.py
	new file:   src/concierge/providers/google.py
	new file:   src/concierge/providers/k8s.py
	new file:   src/concierge/providers/lxd.py
	new file:   src/concierge/providers/microk8s.py
	new file:   src/concierge/system/__init__.py
	new file:   src/concierge/system/__pycache__/__init__.cpython-314.pyc
	new file:   src/concierge/system/__pycache__/command.cpython-314.pyc
	new file:   src/concierge/system/__pycache__/models.cpython-314.pyc
	new file:   src/concierge/system/__pycache__/runner.cpython-314.pyc
	new file:   src/concierge/system/__pycache__/snap.cpython-314.pyc
	new file:   src/concierge/system/__pycache__/worker.cpython-314.pyc
	new file:   src/concierge/system/command.py
	new file:   src/concierge/system/models.py
	new file:   src/concierge/system/runner.py
	new file:   src/concierge/system/snap.py
	new file:   src/concierge/system/worker.py
	new file:   tests/__init__.py
	new file:   tests/integration/__init__.py
	new file:   tests/mocks/__init__.py
	new file:   tests/unit/__init__.py