347 lines
12 KiB
Python
347 lines
12 KiB
Python
# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import mock
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from oslo_serialization import jsonutils
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from heat.common import identifier
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from heat.common import template_format
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from heat.engine.clients.os import glance
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from heat.engine.clients.os import nova
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from heat.engine import environment
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from heat.engine.resources.aws.cfn.wait_condition_handle import (
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WaitConditionHandle)
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from heat.engine.resources.aws.ec2 import instance
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from heat.engine.resources.openstack.nova import server
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from heat.engine import scheduler
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from heat.engine import service
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from heat.engine import stack as stk
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from heat.engine import template as tmpl
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from heat.tests import common
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from heat.tests import utils
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TEST_TEMPLATE_METADATA = '''
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{
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"AWSTemplateFormatVersion" : "2010-09-09",
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"Description" : "",
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"Parameters" : {
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"KeyName" : {"Type" : "String", "Default": "mine" },
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},
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"Resources" : {
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"S1": {
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"Type": "AWS::EC2::Instance",
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"Metadata" : {
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"AWS::CloudFormation::Init" : {
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"config" : {
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"files" : {
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"/tmp/random_file" : {
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"content" : { "Fn::Join" : ["", [
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"s2-ip=", {"Fn::GetAtt": ["S2", "PublicIp"]}
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]]},
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"mode" : "000400",
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"owner" : "root",
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"group" : "root"
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}
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}
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}
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}
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},
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"Properties": {
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"ImageId" : "a",
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"InstanceType" : "m1.large",
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"KeyName" : { "Ref" : "KeyName" },
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"UserData" : "#!/bin/bash -v\n"
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}
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},
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"S2": {
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"Type": "AWS::EC2::Instance",
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"Properties": {
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"ImageId" : "a",
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"InstanceType" : "m1.large",
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"KeyName" : { "Ref" : "KeyName" },
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"UserData" : "#!/bin/bash -v\n"
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}
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}
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}
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}
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'''
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TEST_TEMPLATE_WAIT_CONDITION = '''
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{
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"AWSTemplateFormatVersion" : "2010-09-09",
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"Description" : "Just a WaitCondition.",
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"Parameters" : {
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"KeyName" : {"Type" : "String", "Default": "mine" },
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},
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"Resources" : {
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"WH" : {
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"Type" : "AWS::CloudFormation::WaitConditionHandle"
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},
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"S1": {
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"Type": "AWS::EC2::Instance",
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"Properties": {
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"ImageId" : "a",
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"InstanceType" : "m1.large",
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"KeyName" : { "Ref" : "KeyName" },
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"UserData" : { "Fn::Join" : [ "", [ "#!/bin/bash -v\n",
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"echo ",
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{ "Ref" : "WH" },
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"\n" ] ] }
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}
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},
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"WC" : {
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"Type" : "AWS::CloudFormation::WaitCondition",
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"DependsOn": "S1",
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"Properties" : {
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"Handle" : {"Ref" : "WH"},
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"Timeout" : "5"
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}
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},
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"S2": {
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"Type": "AWS::EC2::Instance",
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"Metadata" : {
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"test" : {"Fn::GetAtt": ["WC", "Data"]}
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},
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"Properties": {
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"ImageId" : "a",
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"InstanceType" : "m1.large",
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"KeyName" : { "Ref" : "KeyName" },
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"UserData" : "#!/bin/bash -v\n"
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}
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}
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}
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}
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'''
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TEST_TEMPLATE_SERVER = '''
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heat_template_version: 2013-05-23
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resources:
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instance1:
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type: OS::Nova::Server
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metadata: {"template_data": {get_attr: [instance2, networks]}}
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properties:
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image: cirros-0.3.2-x86_64-disk
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flavor: m1.small
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key_name: stack_key
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instance2:
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type: OS::Nova::Server
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metadata: {'apples': 'pears'}
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properties:
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image: cirros-0.3.2-x86_64-disk
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flavor: m1.small
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key_name: stack_key
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'''
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class MetadataRefreshTest(common.HeatTestCase):
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@mock.patch.object(nova.NovaClientPlugin, 'find_flavor_by_name_or_id')
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@mock.patch.object(glance.GlanceClientPlugin, 'find_image_by_name_or_id')
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@mock.patch.object(instance.Instance, 'handle_create')
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@mock.patch.object(instance.Instance, 'check_create_complete')
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@mock.patch.object(instance.Instance, '_resolve_attribute')
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def test_FnGetAtt_metadata_updated(self, mock_get, mock_check,
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mock_handle, *args):
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"""Tests that metadata gets updated when FnGetAtt return changes."""
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# Setup
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temp = template_format.parse(TEST_TEMPLATE_METADATA)
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template = tmpl.Template(temp,
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env=environment.Environment({}))
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ctx = utils.dummy_context()
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stack = stk.Stack(ctx, 'test_stack', template, disable_rollback=True)
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stack.store()
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self.stub_KeypairConstraint_validate()
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# Configure FnGetAtt to return different values on subsequent calls
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mock_get.side_effect = [
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'10.0.0.1',
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'10.0.0.2',
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]
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# Initial resolution of the metadata
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stack.create()
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self.assertEqual((stack.CREATE, stack.COMPLETE), stack.state)
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# Sanity check on S2
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s2 = stack['S2']
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self.assertEqual((s2.CREATE, s2.COMPLETE), s2.state)
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# Verify S1 is using the initial value from S2
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s1 = stack['S1']
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content = self._get_metadata_content(s1.metadata_get())
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self.assertEqual('s2-ip=10.0.0.1', content)
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# This is not a terribly realistic test - the metadata updates below
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# happen in run_alarm_action() in service_stack_watch, and actually
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# operate on a freshly loaded stack so there's no cached attributes.
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# Clear the attributes cache here to keep it passing.
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s2.attributes.reset_resolved_values()
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# Run metadata update to pick up the new value from S2
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s1.metadata_update()
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s2.metadata_update()
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# Verify the updated value is correct in S1
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content = self._get_metadata_content(s1.metadata_get())
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self.assertEqual('s2-ip=10.0.0.2', content)
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# Verify outgoing calls
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mock_get.assert_has_calls([
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mock.call('PublicIp'),
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mock.call('PublicIp')])
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self.assertEqual(2, mock_handle.call_count)
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self.assertEqual(2, mock_check.call_count)
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@staticmethod
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def _get_metadata_content(m):
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tmp = m['AWS::CloudFormation::Init']['config']['files']
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return tmp['/tmp/random_file']['content']
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class WaitConditionMetadataUpdateTest(common.HeatTestCase):
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def setUp(self):
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super(WaitConditionMetadataUpdateTest, self).setUp()
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self.man = service.EngineService('a-host', 'a-topic')
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self.man.create_periodic_tasks()
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@mock.patch.object(nova.NovaClientPlugin, 'find_flavor_by_name_or_id')
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@mock.patch.object(glance.GlanceClientPlugin, 'find_image_by_name_or_id')
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@mock.patch.object(instance.Instance, 'handle_create')
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@mock.patch.object(instance.Instance, 'check_create_complete')
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@mock.patch.object(instance.Instance, 'is_service_available')
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@mock.patch.object(scheduler.TaskRunner, '_sleep')
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@mock.patch.object(WaitConditionHandle, 'identifier')
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def test_wait_metadata(self, mock_identifier, mock_sleep, mock_available,
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mock_check, mock_handle, *args):
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"""Tests a wait condition metadata update after a signal call."""
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mock_available.return_value = (True, None)
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# Setup Stack
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temp = template_format.parse(TEST_TEMPLATE_WAIT_CONDITION)
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template = tmpl.Template(temp)
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ctx = utils.dummy_context()
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stack = stk.Stack(ctx, 'test-stack', template, disable_rollback=True)
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stack.store()
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self.stub_KeypairConstraint_validate()
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res_id = identifier.ResourceIdentifier('test_tenant_id', stack.name,
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stack.id, '', 'WH')
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mock_identifier.return_value = res_id
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watch = stack['WC']
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inst = stack['S2']
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# Setup Sleep Behavior
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self.run_empty = True
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def check_empty(sleep_time):
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self.assertEqual('{}', watch.FnGetAtt('Data'))
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self.assertIsNone(inst.metadata_get()['test'])
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def update_metadata(unique_id, data, reason):
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self.man.resource_signal(ctx,
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dict(stack.identifier()),
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'WH',
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{'Data': data, 'Reason': reason,
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'Status': 'SUCCESS',
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'UniqueId': unique_id},
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sync_call=True)
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def post_success(sleep_time):
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update_metadata('123', 'foo', 'bar')
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def side_effect_popper(sleep_time):
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if self.run_empty:
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self.run_empty = False
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check_empty(sleep_time)
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else:
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post_success(sleep_time)
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mock_sleep.side_effect = side_effect_popper
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# Test Initial Creation
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stack.create()
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self.assertEqual((stack.CREATE, stack.COMPLETE), stack.state)
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self.assertEqual('{"123": "foo"}', watch.FnGetAtt('Data'))
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self.assertEqual('{"123": "foo"}', inst.metadata_get()['test'])
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# Test Update
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update_metadata('456', 'blarg', 'wibble')
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self.assertEqual({'123': 'foo', '456': 'blarg'},
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jsonutils.loads(watch.FnGetAtt('Data')))
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self.assertEqual('{"123": "foo"}',
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inst.metadata_get()['test'])
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self.assertEqual(
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{'123': 'foo', '456': 'blarg'},
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jsonutils.loads(inst.metadata_get(refresh=True)['test']))
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# Verify outgoing calls
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self.assertGreater(mock_available.call_count, 0)
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self.assertEqual(2, mock_handle.call_count)
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self.assertEqual(2, mock_check.call_count)
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class MetadataRefreshServerTest(common.HeatTestCase):
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@mock.patch.object(nova.NovaClientPlugin, 'find_flavor_by_name_or_id',
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return_value=1)
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@mock.patch.object(glance.GlanceClientPlugin, 'find_image_by_name_or_id',
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return_value=1)
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@mock.patch.object(server.Server, 'handle_create')
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@mock.patch.object(server.Server, 'check_create_complete')
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@mock.patch.object(server.Server, 'FnGetAtt')
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def test_FnGetAtt_metadata_update(self, mock_get, mock_check,
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mock_handle, *args):
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temp = template_format.parse(TEST_TEMPLATE_SERVER)
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template = tmpl.Template(temp,
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env=environment.Environment({}))
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ctx = utils.dummy_context()
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stack = stk.Stack(ctx, 'test-stack', template, disable_rollback=True)
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stack.store()
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self.stub_KeypairConstraint_validate()
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# Note dummy addresses are from TEST-NET-1 ref rfc5737
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mock_get.side_effect = ['192.0.2.1', '192.0.2.2', '192.0.2.2']
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# Test
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stack.create()
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self.assertEqual((stack.CREATE, stack.COMPLETE), stack.state)
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s1 = stack['instance1']
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md = s1.metadata_get()
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self.assertEqual({u'template_data': '192.0.2.1'}, md)
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# Now set some metadata via the resource, like is done by
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# _populate_deployments_metadata. This should be persisted over
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# calls to metadata_update()
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new_md = {u'template_data': '192.0.2.2', 'set_by_rsrc': 'orange'}
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s1.metadata_set(new_md)
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md = s1.metadata_get(refresh=True)
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self.assertEqual(new_md, md)
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s1.metadata_update()
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md = s1.metadata_get(refresh=True)
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self.assertEqual(new_md, md)
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# Verify outgoing calls
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mock_get.assert_has_calls([
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mock.call('networks'),
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mock.call('networks')])
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self.assertEqual(2, mock_handle.call_count)
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self.assertEqual(2, mock_check.call_count)
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