# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import mox
import eventlet
import unittest
from nose.plugins.attrib import attr
from oslo.config import cfg
from heat.tests import fakes
from heat.tests.utils import stack_delete_after
from heat.common import identifier
from heat.common import template_format
from heat.engine import parser
from heat.engine import service
from heat.engine.resources import instance
from heat.common import context
from heat.engine.resources import wait_condition as wc
test_template_metadata = '''
{
"AWSTemplateFormatVersion" : "2010-09-09",
"Description" : "",
"Parameters" : {
"KeyName" : {"Type" : "String", "Default": "mine" },
},
"Resources" : {
"S1": {
"Type": "AWS::EC2::Instance",
"Metadata" : {
"AWS::CloudFormation::Init" : {
"config" : {
"files" : {
"/tmp/random_file" : {
"content" : { "Fn::Join" : ["", [
"s2-ip=", {"Fn::GetAtt": ["S2", "PublicIp"]}
]]},
"mode" : "000400",
"owner" : "root",
"group" : "root"
}
}
}
}
},
"Properties": {
"ImageId" : "a",
"InstanceType" : "m1.large",
"KeyName" : { "Ref" : "KeyName" },
"UserData" : "#!/bin/bash -v\n"
}
},
"S2": {
"Type": "AWS::EC2::Instance",
"Properties": {
"ImageId" : "a",
"InstanceType" : "m1.large",
"KeyName" : { "Ref" : "KeyName" },
"UserData" : "#!/bin/bash -v\n"
}
}
}
}
'''
test_template_waitcondition = '''
{
"AWSTemplateFormatVersion" : "2010-09-09",
"Description" : "Just a WaitCondition.",
"Parameters" : {
"KeyName" : {"Type" : "String", "Default": "mine" },
},
"Resources" : {
"S1": {
"Type": "AWS::EC2::Instance",
"Metadata" : {
"test" : {"Fn::GetAtt": ["WC", "Data"]}
},
"Properties": {
"ImageId" : "a",
"InstanceType" : "m1.large",
"KeyName" : { "Ref" : "KeyName" },
"UserData" : { "Fn::Join" : [ "", [ "#!/bin/bash -v\n",
"echo ",
{ "Ref" : "WH" },
"\n" ] ] }
}
},
"WH" : {
"Type" : "AWS::CloudFormation::WaitConditionHandle"
},
"WC" : {
"Type" : "AWS::CloudFormation::WaitCondition",
"DependsOn": "S1",
"Properties" : {
"Handle" : {"Ref" : "WH"},
"Timeout" : "5"
}
}
}
}
'''
@attr(tag=['unit', 'resource', 'Metadata'])
@attr(speed='slow')
[docs]class MetadataRefreshTest(unittest.TestCase):
'''
The point of the test is to confirm that metadata gets updated
when FnGetAtt() returns something different.
gets called.
'''
[docs] def setUp(self):
self.m = mox.Mox()
self.m.StubOutWithMock(eventlet, 'sleep')
self.fc = fakes.FakeKeystoneClient()
[docs] def tearDown(self):
self.m.UnsetStubs()
# Note tests creating a stack should be decorated with @stack_delete_after
# to ensure the stack is properly cleaned up
[docs] def create_stack(self, stack_name='test_stack', params={}):
temp = template_format.parse(test_template_metadata)
template = parser.Template(temp)
parameters = parser.Parameters(stack_name, template, params)
ctx = context.get_admin_context()
ctx.tenant_id = 'test_tenant'
stack = parser.Stack(ctx, stack_name, template, parameters,
disable_rollback=True)
self.stack_id = stack.store()
self.m.StubOutWithMock(instance.Instance, 'handle_create')
self.m.StubOutWithMock(instance.Instance, 'check_active')
instance.Instance.handle_create().AndReturn(None)
instance.Instance.check_active().AndReturn(True)
instance.Instance.handle_create().AndReturn(None)
instance.Instance.check_active().AndReturn(True)
self.m.StubOutWithMock(instance.Instance, 'FnGetAtt')
return stack
@stack_delete_after
[docs] def test_FnGetAtt(self):
self.stack = self.create_stack()
instance.Instance.FnGetAtt('PublicIp').AndReturn('1.2.3.5')
# called by metadata_update()
instance.Instance.FnGetAtt('PublicIp').AndReturn('10.0.0.5')
self.m.ReplayAll()
self.stack.create()
self.assertEqual(self.stack.state, self.stack.CREATE_COMPLETE)
s1 = self.stack.resources['S1']
s2 = self.stack.resources['S2']
files = s1.metadata['AWS::CloudFormation::Init']['config']['files']
cont = files['/tmp/random_file']['content']
self.assertEqual(s2.CREATE_COMPLETE, s2.state)
self.assertEqual(cont, 's2-ip=1.2.3.5')
s1.metadata_update()
s2.metadata_update()
files = s1.metadata['AWS::CloudFormation::Init']['config']['files']
cont = files['/tmp/random_file']['content']
self.assertEqual(cont, 's2-ip=10.0.0.5')
self.m.VerifyAll()
@attr(tag=['unit', 'resource', 'Metadata'])
@attr(speed='slow')
[docs]class WaitCondMetadataUpdateTest(unittest.TestCase):
[docs] def setUp(self):
self.m = mox.Mox()
self.ctx = context.get_admin_context()
self.ctx.tenant_id = 'test_tenant'
self.fc = fakes.FakeKeystoneClient()
self.man = service.EngineService('a-host', 'a-topic')
cfg.CONF.set_default('heat_waitcondition_server_url',
'http://127.0.0.1:8000/v1/waitcondition')
[docs] def tearDown(self):
self.m.UnsetStubs()
# Note tests creating a stack should be decorated with @stack_delete_after
# to ensure the stack is properly cleaned up
[docs] def create_stack(self, stack_name='test_stack'):
temp = template_format.parse(test_template_waitcondition)
template = parser.Template(temp)
parameters = parser.Parameters(stack_name, template, {})
stack = parser.Stack(self.ctx, stack_name, template, parameters,
disable_rollback=True)
self.stack_id = stack.store()
self.m.StubOutWithMock(instance.Instance, 'handle_create')
self.m.StubOutWithMock(instance.Instance, 'check_active')
instance.Instance.handle_create().AndReturn(None)
instance.Instance.check_active().AndReturn(True)
self.m.StubOutWithMock(wc.WaitConditionHandle, 'keystone')
wc.WaitConditionHandle.keystone().MultipleTimes().AndReturn(self.fc)
id = identifier.ResourceIdentifier('test_tenant', stack.name,
stack.id, '', 'WH')
self.m.StubOutWithMock(wc.WaitConditionHandle, 'identifier')
wc.WaitConditionHandle.identifier().MultipleTimes().AndReturn(id)
self.m.StubOutWithMock(eventlet, 'sleep')
return stack
@stack_delete_after
[docs] def test_wait_meta(self):
'''
1 create stack
2 assert empty instance metadata
3 service.metadata_update()
4 assert valid waitcond metadata
5 assert valid instance metadata
'''
self.stack = self.create_stack()
watch = self.stack['WC']
inst = self.stack['S1']
def check_empty(sleep_time):
self.assertEqual(watch.FnGetAtt('Data'), '{}')
self.assertEqual(inst.metadata['test'], None)
def update_metadata(id, data, reason):
self.man.metadata_update(self.ctx,
dict(self.stack.identifier()),
'WH',
{'Data': data, 'Reason': reason,
'Status': 'SUCCESS', 'UniqueId': id})
def post_success(sleep_time):
update_metadata('123', 'foo', 'bar')
eventlet.sleep(mox.IsA(int)).WithSideEffects(check_empty)
eventlet.sleep(mox.IsA(int)).WithSideEffects(post_success)
self.m.ReplayAll()
self.stack.create()
self.assertEqual(self.stack.state, self.stack.CREATE_COMPLETE)
self.assertEqual(watch.FnGetAtt('Data'), '{"123": "foo"}')
self.assertEqual(inst.metadata['test'], '{"123": "foo"}')
update_metadata('456', 'blarg', 'wibble')
self.assertEqual(watch.FnGetAtt('Data'),
'{"123": "foo", "456": "blarg"}')
self.assertEqual(inst.metadata['test'],
'{"123": "foo", "456": "blarg"}')
self.m.VerifyAll()