222 lines
8.7 KiB
Python
222 lines
8.7 KiB
Python
#
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# Copyright (c) 2013 Docker, Inc.
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# All Rights Reserved.
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#
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# 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_utils import importutils
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import six
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from heat.common import exception
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from heat.common import template_format
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from heat.engine import resource
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from heat.engine import rsrc_defn
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from heat.engine import scheduler
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from heat.tests import common
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from heat.tests import utils
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import testtools
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from ..resources import docker_container # noqa
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import fake_docker_client as fakeclient # noqa
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docker = importutils.try_import('docker')
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template = '''
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{
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"AWSTemplateFormatVersion": "2010-09-09",
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"Description": "Test template",
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"Parameters": {},
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"Resources": {
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"Blog": {
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"Type": "DockerInc::Docker::Container",
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"Properties": {
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"image": "samalba/wordpress",
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"env": [
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"FOO=bar"
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]
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}
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}
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}
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}
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'''
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class DockerContainerTest(common.HeatTestCase):
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def setUp(self):
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super(DockerContainerTest, self).setUp()
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for res_name, res_class in docker_container.resource_mapping().items():
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resource._register_class(res_name, res_class)
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self.addCleanup(self.m.VerifyAll)
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def create_container(self, resource_name):
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t = template_format.parse(template)
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stack = utils.parse_stack(t)
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resource = docker_container.DockerContainer(
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resource_name,
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stack.t.resource_definitions(stack)[resource_name], stack)
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self.m.StubOutWithMock(resource, 'get_client')
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resource.get_client().MultipleTimes().AndReturn(
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fakeclient.FakeDockerClient())
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self.assertIsNone(resource.validate())
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self.m.ReplayAll()
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scheduler.TaskRunner(resource.create)()
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self.assertEqual((resource.CREATE, resource.COMPLETE),
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resource.state)
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return resource
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def get_container_state(self, resource):
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client = resource.get_client()
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return client.inspect_container(resource.resource_id)['State']
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def test_resource_create(self):
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container = self.create_container('Blog')
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self.assertTrue(container.resource_id)
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running = self.get_container_state(container)['Running']
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self.assertIs(True, running)
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client = container.get_client()
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self.assertEqual(['samalba/wordpress'], client.pulled_images)
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self.assertIsNone(client.container_create[0]['name'])
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def test_create_with_name(self):
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t = template_format.parse(template)
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stack = utils.parse_stack(t)
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definition = stack.t.resource_definitions(stack)['Blog']
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definition['Properties']['name'] = 'super-blog'
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resource = docker_container.DockerContainer(
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'Blog', definition, stack)
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self.m.StubOutWithMock(resource, 'get_client')
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resource.get_client().MultipleTimes().AndReturn(
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fakeclient.FakeDockerClient())
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self.assertIsNone(resource.validate())
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self.m.ReplayAll()
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scheduler.TaskRunner(resource.create)()
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self.assertEqual((resource.CREATE, resource.COMPLETE),
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resource.state)
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client = resource.get_client()
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self.assertEqual(['samalba/wordpress'], client.pulled_images)
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self.assertEqual('super-blog', client.container_create[0]['name'])
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@mock.patch.object(docker_container.DockerContainer, 'get_client')
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def test_create_failed(self, test_client):
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mock_client = mock.Mock()
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mock_client.inspect_container.return_value = {
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"State": {
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"ExitCode": -1
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}
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}
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mock_client.logs.return_value = "Container startup failed"
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test_client.return_value = mock_client
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mock_stack = mock.Mock()
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mock_stack.db_resource_get.return_value = None
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res_def = mock.Mock(spec=rsrc_defn.ResourceDefinition)
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docker_res = docker_container.DockerContainer("test", res_def,
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mock_stack)
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exc = self.assertRaises(resource.ResourceInError,
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docker_res.check_create_complete,
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'foo')
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self.assertIn("Container startup failed", six.text_type(exc))
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def test_start_with_bindings_and_links(self):
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t = template_format.parse(template)
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stack = utils.parse_stack(t)
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definition = stack.t.resource_definitions(stack)['Blog']
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definition['Properties']['port_bindings'] = {
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'80/tcp': [{'HostPort': '80'}]}
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definition['Properties']['links'] = {'db': 'mysql'}
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resource = docker_container.DockerContainer(
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'Blog', definition, stack)
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self.m.StubOutWithMock(resource, 'get_client')
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resource.get_client().MultipleTimes().AndReturn(
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fakeclient.FakeDockerClient())
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self.assertIsNone(resource.validate())
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self.m.ReplayAll()
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scheduler.TaskRunner(resource.create)()
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self.assertEqual((resource.CREATE, resource.COMPLETE),
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resource.state)
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client = resource.get_client()
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self.assertEqual(['samalba/wordpress'], client.pulled_images)
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self.assertEqual({'db': 'mysql'}, client.container_start[0]['links'])
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self.assertEqual(
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{'80/tcp': [{'HostPort': '80'}]},
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client.container_start[0]['port_bindings'])
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def test_resource_attributes(self):
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container = self.create_container('Blog')
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# Test network info attributes
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self.assertEqual('172.17.42.1', container.FnGetAtt('network_gateway'))
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self.assertEqual('172.17.0.3', container.FnGetAtt('network_ip'))
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self.assertEqual('1080', container.FnGetAtt('network_tcp_ports'))
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self.assertEqual('', container.FnGetAtt('network_udp_ports'))
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# Test logs attributes
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self.assertEqual('---logs_begin---', container.FnGetAtt('logs_head'))
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self.assertEqual('---logs_end---', container.FnGetAtt('logs_tail'))
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# Test a non existing attribute
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self.assertRaises(exception.InvalidTemplateAttribute,
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container.FnGetAtt, 'invalid_attribute')
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def test_resource_delete(self):
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container = self.create_container('Blog')
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scheduler.TaskRunner(container.delete)()
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self.assertEqual((container.DELETE, container.COMPLETE),
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container.state)
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running = self.get_container_state(container)['Running']
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self.assertIs(False, running)
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def test_resource_already_deleted(self):
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container = self.create_container('Blog')
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scheduler.TaskRunner(container.delete)()
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running = self.get_container_state(container)['Running']
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self.assertIs(False, running)
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scheduler.TaskRunner(container.delete)()
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self.m.VerifyAll()
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@testtools.skipIf(docker is None, 'docker-py not available')
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def test_resource_delete_exception(self):
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response = mock.MagicMock()
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response.status_code = 404
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response.content = 'some content'
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container = self.create_container('Blog')
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self.m.StubOutWithMock(container.get_client(), 'kill')
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container.get_client().kill(container.resource_id).AndRaise(
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docker.errors.APIError('Not found', response))
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self.m.StubOutWithMock(container, '_get_container_status')
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container._get_container_status(container.resource_id).AndRaise(
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docker.errors.APIError('Not found', response))
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self.m.ReplayAll()
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scheduler.TaskRunner(container.delete)()
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self.m.VerifyAll()
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def test_resource_suspend_resume(self):
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container = self.create_container('Blog')
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# Test suspend
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scheduler.TaskRunner(container.suspend)()
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self.assertEqual((container.SUSPEND, container.COMPLETE),
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container.state)
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running = self.get_container_state(container)['Running']
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self.assertIs(False, running)
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# Test resume
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scheduler.TaskRunner(container.resume)()
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self.assertEqual((container.RESUME, container.COMPLETE),
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container.state)
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running = self.get_container_state(container)['Running']
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self.assertIs(True, running)
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