The ironic.db.api Module

Base classes for storage engines

class ironic.db.api.Connection

Bases: object

Base class for storage system connections.

create_chassis(values)

Create a new chassis.

Parameters:values – Dict of values.

create_node(values)

Create a new node.

Parameters:values –

A dict containing several items used to identify and track the node, and several dicts which are passed into the Drivers when managing this node. For example:

{
 'uuid': uuidutils.generate_uuid(),
 'instance_uuid': None,
 'power_state': states.POWER_OFF,
 'provision_state': states.AVAILABLE,
 'driver': 'pxe_ipmitool',
 'driver_info': { ... },
 'properties': { ... },
 'extra': { ... },
}

Returns:A node.

create_port(values)

Create a new port.

Parameters:values – Dict of values.

destroy_chassis(chassis_id)

Destroy a chassis.

Parameters:chassis_id – The id or the uuid of a chassis.

destroy_node(node_id)

Destroy a node and all associated interfaces.

Parameters:node_id – The id or uuid of a node.

destroy_port(port_id)

Destroy an port.

Parameters:port_id – The id or MAC of a port.

get_active_driver_dict(interval)

Retrieve drivers for the registered and active conductors.

Parameters:interval – Seconds since last check-in of a conductor. Returns:A dict which maps driver names to the set of hosts which support them. For example:

{driverA: set([host1, host2]),
 driverB: set([host2, host3])}

get_chassis_by_id(chassis_id)

Return a chassis representation.

Parameters:chassis_id – The id of a chassis. Returns:A chassis.

get_chassis_by_uuid(chassis_uuid)

Return a chassis representation.

Parameters:chassis_uuid – The uuid of a chassis. Returns:A chassis.

get_chassis_list(limit=None, marker=None, sort_key=None, sort_dir=None)

Return a list of chassis.

Parameters:

• limit – Maximum number of chassis to return.
• marker – the last item of the previous page; we return the next result set.
• sort_key – Attribute by which results should be sorted.
• sort_dir – direction in which results should be sorted. (asc, desc)

get_conductor(hostname)

Retrieve a conductor’s service record from the database.

Parameters:hostname – The hostname of the conductor service. Returns:A conductor. Raises:ConductorNotFound

get_node_by_id(node_id)

Return a node.

Parameters:node_id – The id of a node. Returns:A node.

get_node_by_instance(instance)

Return a node.

Parameters:instance – The instance name or uuid to search for. Returns:A node.

get_node_by_name(node_name)

Return a node.

Parameters:node_name – The logical name of a node. Returns:A node.

get_node_by_uuid(node_uuid)

Return a node.

Parameters:node_uuid – The uuid of a node. Returns:A node.

get_node_list(filters=None, limit=None, marker=None, sort_key=None, sort_dir=None)

Return a list of nodes.

Parameters:

• filters –

  Filters to apply. Defaults to None.

  associated:True | False reserved:True | False maintenance:True | False chassis_uuid:uuid of chassis driver:driver’s name provision_state:  provision state of node provisioned_before:  nodes with provision_updated_at field before this interval in seconds
• limit – Maximum number of nodes to return.
• marker – the last item of the previous page; we return the next result set.
• sort_key – Attribute by which results should be sorted.
• sort_dir – direction in which results should be sorted. (asc, desc)

get_nodeinfo_list(columns=None, filters=None, limit=None, marker=None, sort_key=None, sort_dir=None)

Get specific columns for matching nodes.

Return a list of the specified columns for all nodes that match the specified filters.

Parameters:

• columns – List of column names to return. Defaults to ‘id’ column when columns == None.
• filters –

  Filters to apply. Defaults to None.

  associated:True | False reserved:True | False reserved_by_any_of:  [conductor1, conductor2] maintenance:True | False chassis_uuid:uuid of chassis driver:driver’s name provision_state:  provision state of node provisioned_before:  nodes with provision_updated_at field before this interval in seconds
• limit – Maximum number of nodes to return.
• marker – the last item of the previous page; we return the next result set.
• sort_key – Attribute by which results should be sorted.
• sort_dir – direction in which results should be sorted. (asc, desc)

Returns:

A list of tuples of the specified columns.

get_offline_conductors()

Get a list conductor hostnames that are offline (dead).

Returns:A list of conductor hostnames.

get_port_by_address(address)

Return a network port representation.

Parameters:address – The MAC address of a port. Returns:A port.

get_port_by_id(port_id)

Return a network port representation.

Parameters:port_id – The id of a port. Returns:A port.

get_port_by_uuid(port_uuid)

Return a network port representation.

Parameters:port_uuid – The uuid of a port. Returns:A port.

get_port_list(limit=None, marker=None, sort_key=None, sort_dir=None)

Return a list of ports.

Parameters:

• limit – Maximum number of ports to return.
• marker – the last item of the previous page; we return the next result set.
• sort_key – Attribute by which results should be sorted.
• sort_dir – direction in which results should be sorted. (asc, desc)

get_ports_by_node_id(node_id, limit=None, marker=None, sort_key=None, sort_dir=None)

List all the ports for a given node.

Parameters:

• node_id – The integer node ID.
• limit – Maximum number of ports to return.
• marker – the last item of the previous page; we return the next result set.
• sort_key – Attribute by which results should be sorted
• sort_dir – direction in which results should be sorted (asc, desc)

Returns:

A list of ports.

register_conductor(values, update_existing=False)

Register an active conductor with the cluster.

Parameters:

• values –

  A dict of values which must contain the following:

  {
   'hostname': the unique hostname which identifies
               this Conductor service.
   'drivers': a list of supported drivers.
  }
  

• update_existing – When false, registration will raise an exception when a conflicting online record is found. When true, will overwrite the existing record. Default: False.

Returns:

A conductor.

Raises:

ConductorAlreadyRegistered

release_node(tag, node_id)

Release the reservation on a node.

Parameters:

• tag – A string uniquely identifying the reservation holder.
• node_id – A node id or uuid.

Raises:

NodeNotFound if the node is not found.

Raises:

NodeLocked if the node is reserved by another host.

Raises:

NodeNotLocked if the node was found to not have a reservation at all.

reserve_node(tag, node_id)

Reserve a node.

To prevent other ManagerServices from manipulating the given Node while a Task is performed, mark it reserved by this host.

Parameters:

• tag – A string uniquely identifying the reservation holder.
• node_id – A node id or uuid.

Returns:

A Node object.

Raises:

NodeNotFound if the node is not found.

Raises:

NodeLocked if the node is already reserved.

touch_conductor(hostname)

Mark a conductor as active by updating its ‘updated_at’ property.

Parameters:hostname – The hostname of this conductor service. Raises:ConductorNotFound

touch_node_provisioning(node_id)

Mark the node’s provisioning as running.

Mark the node’s provisioning as running by updating its ‘provision_updated_at’ property.

Parameters:node_id – The id of a node. Raises:NodeNotFound

unregister_conductor(hostname)

Remove this conductor from the service registry immediately.

Parameters:hostname – The hostname of this conductor service. Raises:ConductorNotFound

update_chassis(chassis_id, values)

Update properties of an chassis.

Parameters:

• chassis_id – The id or the uuid of a chassis.
• values – Dict of values to update.

Returns:

A chassis.

update_node(node_id, values)

Update properties of a node.

Parameters:

• node_id – The id or uuid of a node.
• values –

  Dict of values to update. May be a partial list, eg. when setting the properties for a driver. For example:

  {
   'driver_info':
       {
        'my-field-1': val1,
        'my-field-2': val2,
       }
  }
  

Returns:

A node.

Raises:

NodeAssociated

Raises:

NodeNotFound

update_port(port_id, values)

Update properties of an port.

Parameters:

• port_id – The id or MAC of a port.
• values – Dict of values to update.

Returns:

A port.