mirror of
https://github.com/valitydev/salt.git
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397 lines
16 KiB
Python
397 lines
16 KiB
Python
# -*- coding: utf-8 -*-
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'''
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Unit tests for the dockerng state
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'''
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# Import Python Libs
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from __future__ import absolute_import
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# Import Salt Testing Libs
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from salttesting import skipIf, TestCase
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from salttesting.helpers import ensure_in_syspath
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from salttesting.mock import (
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MagicMock,
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Mock,
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NO_MOCK,
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NO_MOCK_REASON,
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patch
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)
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ensure_in_syspath('../../')
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# Import Salt Libs
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from salt.modules import dockerng as dockerng_mod
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from salt.states import dockerng as dockerng_state
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dockerng_mod.__context__ = {'docker.docker_version': ''}
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dockerng_mod.__salt__ = {}
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dockerng_state.__context__ = {}
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dockerng_state.__opts__ = {'test': False}
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@skipIf(NO_MOCK, NO_MOCK_REASON)
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class DockerngTestCase(TestCase):
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'''
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Validate dockerng state
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'''
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def test_running_with_no_predifined_volume(self):
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'''
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Test dockerng.running function with an image
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that doens't have VOLUME defined.
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The ``binds`` argument, should create a container
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with respective volumes extracted from ``binds``.
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'''
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dockerng_create = Mock()
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dockerng_start = Mock()
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dockerng_history = MagicMock(return_value=[])
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__salt__ = {'dockerng.list_containers': MagicMock(),
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'dockerng.list_tags': MagicMock(),
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'dockerng.pull': MagicMock(),
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'dockerng.state': MagicMock(),
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'dockerng.inspect_image': MagicMock(),
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'dockerng.create': dockerng_create,
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'dockerng.start': dockerng_start,
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'dockerng.history': dockerng_history,
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}
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with patch.dict(dockerng_state.__dict__,
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{'__salt__': __salt__}):
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dockerng_state.running(
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'cont',
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image='image:latest',
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binds=['/host-0:/container-0:ro'])
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dockerng_create.assert_called_with(
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'image:latest',
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validate_input=False,
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name='cont',
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volumes=['/container-0'],
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client_timeout=60)
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dockerng_start.assert_called_with(
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'cont',
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binds={'/host-0': {'bind': '/container-0', 'ro': True}},
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validate_ip_addrs=False,
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validate_input=False)
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def test_running_with_predifined_volume(self):
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'''
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Test dockerng.running function with an image
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that already have VOLUME defined.
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The ``binds`` argument, shouldn't have side effects on
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container creation.
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'''
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dockerng_create = Mock()
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dockerng_start = Mock()
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dockerng_history = MagicMock(return_value=['VOLUME /container-0'])
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__salt__ = {'dockerng.list_containers': MagicMock(),
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'dockerng.list_tags': MagicMock(),
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'dockerng.pull': MagicMock(),
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'dockerng.state': MagicMock(),
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'dockerng.inspect_image': MagicMock(),
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'dockerng.create': dockerng_create,
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'dockerng.start': dockerng_start,
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'dockerng.history': dockerng_history,
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}
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with patch.dict(dockerng_state.__dict__,
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{'__salt__': __salt__}):
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dockerng_state.running(
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'cont',
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image='image:latest',
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binds=['/host-0:/container-0:ro'])
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dockerng_create.assert_called_with(
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'image:latest',
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validate_input=False,
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name='cont',
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client_timeout=60)
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dockerng_start.assert_called_with(
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'cont',
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binds={'/host-0': {'bind': '/container-0', 'ro': True}},
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validate_ip_addrs=False,
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validate_input=False)
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def test_running_with_no_predifined_ports(self):
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'''
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Test dockerng.running function with an image
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that doens't have EXPOSE defined.
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The ``port_bindings`` argument, should create a container
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with respective ``ports`` extracted from ``port_bindings``.
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'''
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dockerng_create = Mock()
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dockerng_start = Mock()
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dockerng_history = MagicMock(return_value=[])
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__salt__ = {'dockerng.list_containers': MagicMock(),
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'dockerng.list_tags': MagicMock(),
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'dockerng.pull': MagicMock(),
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'dockerng.state': MagicMock(),
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'dockerng.inspect_image': MagicMock(),
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'dockerng.create': dockerng_create,
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'dockerng.start': dockerng_start,
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'dockerng.history': dockerng_history,
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}
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with patch.dict(dockerng_state.__dict__,
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{'__salt__': __salt__}):
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dockerng_state.running(
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'cont',
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image='image:latest',
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port_bindings=['9090:9797/tcp'])
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dockerng_create.assert_called_with(
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'image:latest',
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validate_input=False,
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name='cont',
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ports=[9797],
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client_timeout=60)
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dockerng_start.assert_called_with(
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'cont',
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port_bindings={9797: [9090]},
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validate_ip_addrs=False,
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validate_input=False)
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def test_running_with_predifined_ports(self):
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'''
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Test dockerng.running function with an image
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that contains EXPOSE statements.
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The ``port_bindings`` argument, shouldn't have side effect on container
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creation.
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'''
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dockerng_create = Mock()
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dockerng_start = Mock()
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dockerng_history = MagicMock(return_value=['EXPOSE 9797/tcp'])
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__salt__ = {'dockerng.list_containers': MagicMock(),
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'dockerng.list_tags': MagicMock(),
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'dockerng.pull': MagicMock(),
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'dockerng.state': MagicMock(),
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'dockerng.inspect_image': MagicMock(),
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'dockerng.create': dockerng_create,
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'dockerng.start': dockerng_start,
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'dockerng.history': dockerng_history,
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}
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with patch.dict(dockerng_state.__dict__,
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{'__salt__': __salt__}):
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dockerng_state.running(
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'cont',
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image='image:latest',
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port_bindings=['9090:9797/tcp'])
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dockerng_create.assert_called_with(
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'image:latest',
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validate_input=False,
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name='cont',
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client_timeout=60)
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dockerng_start.assert_called_with(
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'cont',
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port_bindings={9797: [9090]},
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validate_ip_addrs=False,
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validate_input=False)
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def test_running_compare_images_by_id(self):
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'''
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Make sure the container is running
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against expected image.
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Here the local image is named 'image:latest' and the container
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is also running against an image called 'image:latest'.
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Therefore the image ids are diverging because the tag 'image:latest'
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moved to a fresher image.
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Thus this test make sure the old container is droped and recreated.
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'''
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new_fake_image_id = 'abcdefgh'
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old_fake_image_id = '123456789'
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dockerng_inspect_image = Mock(return_value={'Id': new_fake_image_id})
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dockerng_inspect_container = Mock(
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return_value={'Image': old_fake_image_id,
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'Config': {'Image': 'image:latest'}})
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dockerng_list_containers = Mock(return_value=['cont'])
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dockerng__state = Mock(return_value='running')
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dockerng_stop = Mock(return_value={'result': True})
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dockerng_rm = Mock(return_value=['container-id'])
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__salt__ = {'dockerng.list_containers': dockerng_list_containers,
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'dockerng.inspect_container': dockerng_inspect_container,
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'dockerng.inspect_image': dockerng_inspect_image,
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'dockerng.list_tags': MagicMock(),
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'dockerng.state': dockerng__state,
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'dockerng.pull': MagicMock(return_value=new_fake_image_id),
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'dockerng.create': MagicMock(return_value='new_container'),
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'dockerng.start': MagicMock(),
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'dockerng.stop': dockerng_stop,
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'dockerng.rm': dockerng_rm,
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}
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with patch.dict(dockerng_state.__dict__,
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{'__salt__': __salt__}):
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ret = dockerng_state.running(
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'cont',
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image='image:latest',
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)
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dockerng_stop.assert_called_with('cont', timeout=10, unpause=True)
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dockerng_rm.assert_called_with('cont')
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self.assertEqual(ret, {'name': 'cont',
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'comment': "Container 'cont' was replaced",
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'result': True,
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'changes': {'added': 'new_container',
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'image': new_fake_image_id,
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'removed': ['container-id']}
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})
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def test_image_present_already_local(self):
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'''
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According following sls,
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.. code-block:: yaml
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image:latest:
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dockerng.image_present:
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- force: true
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if ``image:latest`` is already downloaded locally the state
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should not report changes.
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'''
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dockerng_inspect_image = Mock(
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return_value={'Id': 'abcdefghijk'})
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dockerng_pull = Mock(
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return_value={'Layers':
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{'Already_Pulled': ['abcdefghijk'],
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'Pulled': []},
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'Status': 'Image is up to date for image:latest',
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'Time_Elapsed': 1.1})
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dockerng_list_tags = Mock(
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return_value=['image:latest']
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)
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__salt__ = {'dockerng.list_tags': dockerng_list_tags,
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'dockerng.pull': dockerng_pull,
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'dockerng.inspect_image': dockerng_inspect_image,
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}
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with patch.dict(dockerng_state.__dict__,
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{'__salt__': __salt__}):
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ret = dockerng_state.image_present('image:latest', force=True)
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self.assertEqual(ret,
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{'changes': {},
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'result': True,
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'comment': "Image 'image:latest' was pulled, "
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"but there were no changes",
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'name': 'image:latest',
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})
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def test_check_start_false(self):
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'''
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If start is False, then dockerng.running will not try
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to start a container that is stopped.
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'''
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image_id = 'abcdefg'
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dockerng_create = Mock()
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dockerng_start = Mock()
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dockerng_list_containers = Mock(return_value=['cont'])
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dockerng_inspect_container = Mock(
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return_value={'Config': {'Image': 'image:latest'},
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'Image': image_id})
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__salt__ = {'dockerng.list_containers': dockerng_list_containers,
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'dockerng.inspect_container': dockerng_inspect_container,
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'dockerng.inspect_image': MagicMock(
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return_value={'Id': image_id}),
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'dockerng.list_tags': MagicMock(),
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'dockerng.pull': MagicMock(),
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'dockerng.state': MagicMock(side_effect=['stopped',
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'running']),
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'dockerng.create': dockerng_create,
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'dockerng.start': dockerng_start,
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}
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with patch.dict(dockerng_state.__dict__,
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{'__salt__': __salt__}):
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ret = dockerng_state.running(
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'cont',
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image='image:latest',
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start=False,
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)
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self.assertEqual(ret, {'name': 'cont',
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'comment': "Container 'cont' is already "
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"configured as specified",
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'changes': {},
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'result': True,
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})
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def test_check_start_true(self):
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'''
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If start is True, then dockerng.running will try
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to start a container that is stopped.
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'''
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image_id = 'abcdefg'
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dockerng_create = Mock()
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dockerng_start = Mock()
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dockerng_list_containers = Mock(return_value=['cont'])
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dockerng_inspect_container = Mock(
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return_value={'Config': {'Image': 'image:latest'},
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'Image': image_id})
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__salt__ = {'dockerng.list_containers': dockerng_list_containers,
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'dockerng.inspect_container': dockerng_inspect_container,
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'dockerng.inspect_image': MagicMock(
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return_value={'Id': image_id}),
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'dockerng.list_tags': MagicMock(),
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'dockerng.pull': MagicMock(),
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'dockerng.state': MagicMock(side_effect=['stopped',
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'running']),
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'dockerng.create': dockerng_create,
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'dockerng.start': dockerng_start,
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}
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with patch.dict(dockerng_state.__dict__,
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{'__salt__': __salt__}):
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ret = dockerng_state.running(
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'cont',
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image='image:latest',
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start=True,
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)
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self.assertEqual(ret, {'name': 'cont',
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'comment': "Container 'cont' changed state.",
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'changes': {'state': {'new': 'running',
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'old': 'stopped'}},
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'result': True,
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})
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def test_running_discard_wrong_environemnt_values(self):
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'''
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environment values should be string.
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It is easy to write wrong sls this way
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.. code-block:: yaml
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container:
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dockerng.running:
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- environment:
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- KEY: 1
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instead of:
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.. code-block:: yaml
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container:
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dockerng.running:
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- environment:
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- KEY: "1"
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'''
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__salt__ = {'dockerng.list_containers': MagicMock(),
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'dockerng.list_tags': MagicMock(),
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'dockerng.inspect_image': MagicMock(),
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'dockerng.pull': MagicMock(),
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'dockerng.state': MagicMock(),
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'dockerng.create': MagicMock(),
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'dockerng.start': MagicMock(),
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'dockerng.history': MagicMock(),
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}
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with patch.dict(dockerng_state.__dict__,
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{'__salt__': __salt__}):
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for wrong_value in (1, .2, (), [], {}):
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ret = dockerng_state.running(
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'cont',
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image='image:latest',
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environment=[{'KEY': wrong_value}])
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self.assertEqual(ret,
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{'changes': {},
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'comment': 'Environment values must'
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' be strings KEY={0!r}'.format(wrong_value),
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'name': 'cont',
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'result': False})
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if __name__ == '__main__':
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from integration import run_tests
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run_tests(DockerngTestCase, needs_daemon=False)
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