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docker_compose_v2: move some code to module_utils (#747)
* Move some code to module_utils. * Add unit tests. Test cases are auto-generated from integration test logs. * Rename ResourceEvent → Event.
This commit is contained in:
Felix Fontein
GitHub
parent
eed89f32eb
commit
cb4dd2fed1
271
plugins/module_utils/compose_v2.py
Normal file
271
plugins/module_utils/compose_v2.py
Normal file
@ -0,0 +1,271 @@
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# Copyright (c) 2023, Felix Fontein <felix@fontein.de>
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# Copyright (c) 2023, Léo El Amri (@lel-amri)
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# GNU General Public License v3.0+ (see LICENSES/GPL-3.0-or-later.txt or https://www.gnu.org/licenses/gpl-3.0.txt)
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# SPDX-License-Identifier: GPL-3.0-or-later
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from __future__ import (absolute_import, division, print_function)
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__metaclass__ = type
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import re
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from collections import namedtuple
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from ansible.module_utils.common.text.converters import to_native
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from ansible.module_utils.six.moves import shlex_quote
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DOCKER_STATUS_DONE = frozenset((
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'Started',
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'Healthy',
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'Exited',
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'Restarted',
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'Running',
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'Created',
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'Stopped',
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'Killed',
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'Removed',
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# An extra, specific to containers
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'Recreated',
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# Extras for pull events
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'Pulled',
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))
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DOCKER_STATUS_WORKING = frozenset((
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'Creating',
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'Starting',
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'Waiting',
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'Restarting',
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'Stopping',
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'Killing',
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'Removing',
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# An extra, specific to containers
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'Recreate',
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# Extras for pull events
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'Pulling',
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))
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DOCKER_STATUS_PULL = frozenset((
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'Pulled',
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'Pulling',
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))
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DOCKER_STATUS_ERROR = frozenset((
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'Error',
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))
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DOCKER_STATUS = frozenset(DOCKER_STATUS_DONE | DOCKER_STATUS_WORKING | DOCKER_STATUS_PULL | DOCKER_STATUS_ERROR)
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class ResourceType(object):
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UNKNOWN = "unknown"
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NETWORK = "network"
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IMAGE = "image"
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VOLUME = "volume"
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CONTAINER = "container"
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SERVICE = "service"
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@classmethod
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def from_docker_compose_event(cls, resource_type):
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# type: (Type[ResourceType], Text) -> Any
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return {
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"Network": cls.NETWORK,
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"Image": cls.IMAGE,
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"Volume": cls.VOLUME,
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"Container": cls.CONTAINER,
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}[resource_type]
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Event = namedtuple(
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'Event',
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['resource_type', 'resource_id', 'status', 'msg']
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)
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_DRY_RUN_MARKER = 'DRY-RUN MODE -'
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_RE_RESOURCE_EVENT = re.compile(
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r'^'
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r'\s*'
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r'(?P<resource_type>Network|Image|Volume|Container)'
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r'\s+'
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r'(?P<resource_id>\S+)'
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r'\s+'
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r'(?P<status>\S(?:|.*\S))'
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r'\s*'
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r'$'
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)
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_RE_PULL_EVENT = re.compile(
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r'^'
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r'\s*'
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r'(?P<service>\S+)'
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r'\s+'
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r'(?P<status>%s)'
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r'\s*'
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r'$'
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% '|'.join(re.escape(status) for status in DOCKER_STATUS_PULL)
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)
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_RE_ERROR_EVENT = re.compile(
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r'^'
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r'\s*'
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r'(?P<resource_id>\S+)'
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r'\s+'
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r'(?P<status>%s)'
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r'\s*'
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r'$'
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% '|'.join(re.escape(status) for status in DOCKER_STATUS_ERROR)
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)
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def parse_events(stderr, dry_run=False, warn_function=None):
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events = []
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error_event = None
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for line in stderr.splitlines():
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line = to_native(line.strip())
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if not line:
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continue
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if dry_run:
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if line.startswith(_DRY_RUN_MARKER):
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line = line[len(_DRY_RUN_MARKER):].lstrip()
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elif error_event is None and warn_function:
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# This could be a bug, a change of docker compose's output format, ...
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# Tell the user to report it to us :-)
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warn_function(
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'Event line is missing dry-run mode marker: {0!r}. Please report this at '
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'https://github.com/ansible-collections/community.docker/issues/new?assignees=&labels=&projects=&template=bug_report.md'
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.format(line)
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)
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match = _RE_RESOURCE_EVENT.match(line)
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if match is not None:
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status = match.group('status')
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msg = None
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if status not in DOCKER_STATUS:
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status, msg = msg, status
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event = Event(
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ResourceType.from_docker_compose_event(match.group('resource_type')),
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match.group('resource_id'),
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status,
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msg,
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)
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events.append(event)
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if status in DOCKER_STATUS_ERROR:
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error_event = event
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else:
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error_event = None
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continue
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match = _RE_PULL_EVENT.match(line)
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if match:
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events.append(
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Event(
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ResourceType.SERVICE,
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match.group('service'),
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match.group('status'),
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None,
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)
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)
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error_event = None
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continue
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match = _RE_ERROR_EVENT.match(line)
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if match:
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error_event = Event(
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ResourceType.UNKNOWN,
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match.group('resource_id'),
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match.group('status'),
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None,
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)
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events.append(error_event)
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continue
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if error_event is not None:
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# Unparsable line that apparently belongs to the previous error event
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error_event = Event(
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error_event.resource_type,
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error_event.resource_id,
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error_event.status,
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'\n'.join(msg for msg in [error_event.msg, line] if msg is not None),
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)
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events[-1] = error_event
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continue
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if line.startswith('Error '):
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# Error message that is independent of an error event
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error_event = Event(
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ResourceType.UNKNOWN,
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'',
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'Error',
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line,
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)
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events.append(error_event)
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continue
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# This could be a bug, a change of docker compose's output format, ...
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# Tell the user to report it to us :-)
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if warn_function:
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warn_function(
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'Cannot parse event from line: {0!r}. Please report this at '
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'https://github.com/ansible-collections/community.docker/issues/new?assignees=&labels=&projects=&template=bug_report.md'
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.format(line)
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)
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return events
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def has_changes(events):
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for event in events:
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if event.status in DOCKER_STATUS_WORKING:
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return True
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return False
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def extract_actions(events):
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actions = []
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for event in events:
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if event.status in DOCKER_STATUS_WORKING:
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actions.append({
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'what': event.resource_type,
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'id': event.resource_id,
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'status': event.status,
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})
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return actions
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def emit_warnings(events, warn_function):
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for event in events:
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# If a message is present, assume it is a warning
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if event.status is None and event.msg is not None:
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warn_function('Docker compose: {resource_type} {resource_id}: {msg}'.format(
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resource_type=event.resource_type,
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resource_id=event.resource_id,
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msg=event.msg,
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))
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def is_failed(events, rc):
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if rc:
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return True
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for event in events:
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if event.status in DOCKER_STATUS_ERROR:
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return True
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return False
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def update_failed(result, events, args, stdout, stderr, rc, cli):
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errors = []
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for event in events:
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if event.status in DOCKER_STATUS_ERROR:
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msg = 'Error when processing {resource_type} {resource_id}: '
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if event.resource_type == 'unknown':
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msg = 'Error when processing {resource_id}: '
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if event.resource_id == '':
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msg = 'General error: '
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msg += '{status}' if event.msg is None else '{msg}'
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errors.append(msg.format(
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resource_type=event.resource_type,
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resource_id=event.resource_id,
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status=event.status,
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msg=event.msg,
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))
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if not errors and not rc:
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return False
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if not errors:
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errors.append('Return code {code} is non-zero'.format(code=rc))
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result['failed'] = True
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result['msg'] = '\n'.join(errors)
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result['cmd'] = ' '.join(shlex_quote(arg) for arg in [cli] + args)
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result['stdout'] = to_native(stdout)
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result['stderr'] = to_native(stderr)
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result['rc'] = rc
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return True
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@ -389,122 +389,30 @@ actions:
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'''
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import os
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import re
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import traceback
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from collections import namedtuple
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from ansible.module_utils.common.text.converters import to_native
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from ansible.module_utils.six.moves import shlex_quote
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from ansible_collections.community.docker.plugins.module_utils.common_cli import (
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AnsibleModuleDockerClient,
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DockerException,
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)
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from ansible_collections.community.docker.plugins.module_utils.compose_v2 import (
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parse_events,
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has_changes,
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extract_actions,
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emit_warnings,
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is_failed,
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update_failed,
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)
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from ansible_collections.community.docker.plugins.module_utils.util import DockerBaseClass
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from ansible_collections.community.docker.plugins.module_utils.version import LooseVersion
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DOCKER_COMPOSE_MINIMAL_VERSION = '2.18.0'
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DOCKER_COMPOSE_FILES = 'docker-compose.yml', 'docker-compose.yaml'
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DOCKER_STATUS_DONE = frozenset((
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'Started',
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'Healthy',
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'Exited',
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'Restarted',
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'Running',
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'Created',
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'Stopped',
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'Killed',
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'Removed',
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# An extra, specific to containers
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'Recreated',
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# Extras for pull events
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'Pulled',
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))
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DOCKER_STATUS_WORKING = frozenset((
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'Creating',
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'Starting',
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'Waiting',
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'Restarting',
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'Stopping',
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'Killing',
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'Removing',
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# An extra, specific to containers
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'Recreate',
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# Extras for pull events
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'Pulling',
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))
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DOCKER_STATUS_PULL = frozenset((
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'Pulled',
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'Pulling',
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))
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DOCKER_STATUS_ERROR = frozenset((
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'Error',
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))
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DOCKER_STATUS = frozenset(DOCKER_STATUS_DONE | DOCKER_STATUS_WORKING | DOCKER_STATUS_PULL | DOCKER_STATUS_ERROR)
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class ResourceType(object):
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UNKNOWN = "unknown"
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NETWORK = "network"
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IMAGE = "image"
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VOLUME = "volume"
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CONTAINER = "container"
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SERVICE = "service"
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@classmethod
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def from_docker_compose_event(cls, resource_type):
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# type: (Type[ResourceType], Text) -> Any
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return {
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"Network": cls.NETWORK,
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"Image": cls.IMAGE,
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"Volume": cls.VOLUME,
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"Container": cls.CONTAINER,
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}[resource_type]
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ResourceEvent = namedtuple(
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'ResourceEvent',
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['resource_type', 'resource_id', 'status', 'msg']
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)
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_DRY_RUN_MARKER = 'DRY-RUN MODE -'
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_RE_RESOURCE_EVENT = re.compile(
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r'^'
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r'\s*'
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r'(?P<resource_type>Network|Image|Volume|Container)'
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r'\s+'
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r'(?P<resource_id>\S+)'
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r'\s+'
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r'(?P<status>\S(?:|.*\S))'
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r'\s*'
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r'$'
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)
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_RE_PULL_EVENT = re.compile(
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r'^'
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r'\s*'
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r'(?P<service>\S+)'
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r'\s+'
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r'(?P<status>%s)'
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r'\s*'
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r'$'
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% '|'.join(re.escape(status) for status in DOCKER_STATUS_PULL)
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)
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_RE_ERROR_EVENT = re.compile(
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r'^'
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r'\s*'
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r'(?P<resource_id>\S+)'
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r'\s+'
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r'(?P<status>%s)'
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r'\s*'
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r'$'
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% '|'.join(re.escape(status) for status in DOCKER_STATUS_ERROR)
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)
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class ContainerManager(DockerBaseClass):
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@ -613,152 +521,21 @@ class ContainerManager(DockerBaseClass):
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return result
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def parse_events(self, stderr, dry_run=False):
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events = []
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error_event = None
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for line in stderr.splitlines():
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line = to_native(line.strip())
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if not line:
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continue
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if dry_run:
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if line.startswith(_DRY_RUN_MARKER):
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line = line[len(_DRY_RUN_MARKER):].lstrip()
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elif error_event is None:
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# This could be a bug, a change of docker compose's output format, ...
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# Tell the user to report it to us :-)
|
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self.client.warn(
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'Event line is missing dry-run mode marker: {0!r}. Please report this at '
|
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'https://github.com/ansible-collections/community.docker/issues/new?assignees=&labels=&projects=&template=bug_report.md'
|
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.format(line)
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)
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match = _RE_RESOURCE_EVENT.match(line)
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if match is not None:
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status = match.group('status')
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msg = None
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if status not in DOCKER_STATUS:
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status, msg = msg, status
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event = ResourceEvent(
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ResourceType.from_docker_compose_event(match.group('resource_type')),
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match.group('resource_id'),
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status,
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msg,
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)
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events.append(event)
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if status in DOCKER_STATUS_ERROR:
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error_event = event
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else:
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error_event = None
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continue
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match = _RE_PULL_EVENT.match(line)
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if match:
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events.append(
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ResourceEvent(
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ResourceType.SERVICE,
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match.group('service'),
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match.group('status'),
|
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None,
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)
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)
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error_event = None
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continue
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match = _RE_ERROR_EVENT.match(line)
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if match:
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error_event = ResourceEvent(
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ResourceType.UNKNOWN,
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match.group('resource_id'),
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match.group('status'),
|
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None,
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)
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events.append(error_event)
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continue
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if error_event is not None:
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# Unparsable line that apparently belongs to the previous error event
|
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error_event = ResourceEvent(
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error_event.resource_type,
|
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error_event.resource_id,
|
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error_event.status,
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'\n'.join(msg for msg in [error_event.msg, line] if msg is not None),
|
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)
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events[-1] = error_event
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continue
|
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if line.startswith('Error '):
|
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# Error message that is independent of an error event
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error_event = ResourceEvent(
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ResourceType.UNKNOWN,
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'',
|
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'Error',
|
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line,
|
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)
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events.append(error_event)
|
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continue
|
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# This could be a bug, a change of docker compose's output format, ...
|
||||
# Tell the user to report it to us :-)
|
||||
self.client.warn(
|
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'Cannot parse event from line: {0!r}. Please report this at '
|
||||
'https://github.com/ansible-collections/community.docker/issues/new?assignees=&labels=&projects=&template=bug_report.md'
|
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.format(line)
|
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)
|
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return events
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def has_changes(self, events):
|
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for event in events:
|
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if event.status in DOCKER_STATUS_WORKING:
|
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return True
|
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return False
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|
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def extract_actions(self, events):
|
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actions = []
|
||||
for event in events:
|
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if event.status in DOCKER_STATUS_WORKING:
|
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actions.append({
|
||||
'what': event.resource_type,
|
||||
'id': event.resource_id,
|
||||
'status': event.status,
|
||||
})
|
||||
return actions
|
||||
return parse_events(stderr, dry_run=dry_run, warn_function=self.client.warn)
|
||||
|
||||
def emit_warnings(self, events):
|
||||
for event in events:
|
||||
# If a message is present, assume it is a warning
|
||||
if event.status is None and event.msg is not None:
|
||||
self.client.warn('Docker compose: {resource_type} {resource_id}: {msg}'.format(
|
||||
resource_type=event.resource_type,
|
||||
resource_id=event.resource_id,
|
||||
msg=event.msg,
|
||||
))
|
||||
|
||||
def is_failed(self, events, rc):
|
||||
if rc:
|
||||
return True
|
||||
for event in events:
|
||||
if event.status in DOCKER_STATUS_ERROR:
|
||||
return True
|
||||
return False
|
||||
emit_warnings(events, warn_function=self.client.warn)
|
||||
|
||||
def update_failed(self, result, events, args, stdout, stderr, rc):
|
||||
errors = []
|
||||
for event in events:
|
||||
if event.status in DOCKER_STATUS_ERROR:
|
||||
msg = 'Error when processing {resource_type} {resource_id}: '
|
||||
if event.resource_type == 'unknown':
|
||||
msg = 'Error when processing {resource_id}: '
|
||||
if event.resource_id == '':
|
||||
msg = 'General error: '
|
||||
msg += '{status}' if event.msg is None else '{msg}'
|
||||
errors.append(msg.format(
|
||||
resource_type=event.resource_type,
|
||||
resource_id=event.resource_id,
|
||||
status=event.status,
|
||||
msg=event.msg,
|
||||
))
|
||||
if errors or rc:
|
||||
if not errors:
|
||||
errors.append('Return code {code} is non-zero'.format(code=rc))
|
||||
result['failed'] = True
|
||||
result['msg'] = '\n'.join(errors)
|
||||
result['cmd'] = ' '.join(shlex_quote(arg) for arg in [self.client.get_cli()] + args)
|
||||
result['stdout'] = to_native(stdout)
|
||||
result['stderr'] = to_native(stderr)
|
||||
result['rc'] = rc
|
||||
return update_failed(
|
||||
result,
|
||||
events,
|
||||
args=args,
|
||||
stdout=stdout,
|
||||
stderr=stderr,
|
||||
rc=rc,
|
||||
cli=self.client.get_cli(),
|
||||
)
|
||||
|
||||
def get_up_cmd(self, dry_run, no_start=False):
|
||||
args = self.get_base_args() + ['up', '--detach', '--no-color', '--quiet-pull']
|
||||
@ -787,8 +564,8 @@ class ContainerManager(DockerBaseClass):
|
||||
rc, stdout, stderr = self.client.call_cli(*args, cwd=self.project_src)
|
||||
events = self.parse_events(stderr, dry_run=self.check_mode)
|
||||
self.emit_warnings(events)
|
||||
result['changed'] = self.has_changes(events)
|
||||
result['actions'] = self.extract_actions(events)
|
||||
result['changed'] = has_changes(events)
|
||||
result['actions'] = extract_actions(events)
|
||||
result['stdout'] = to_native(stdout)
|
||||
result['stderr'] = to_native(stderr)
|
||||
self.update_failed(result, events, args, stdout, stderr, rc)
|
||||
@ -823,7 +600,7 @@ class ContainerManager(DockerBaseClass):
|
||||
rc_1, stdout_1, stderr_1 = self.client.call_cli(*args_1, cwd=self.project_src)
|
||||
events_1 = self.parse_events(stderr_1, dry_run=self.check_mode)
|
||||
self.emit_warnings(events_1)
|
||||
is_failed_1 = self.is_failed(events_1, rc_1)
|
||||
is_failed_1 = is_failed(events_1, rc_1)
|
||||
if not is_failed_1 and not self._are_containers_stopped():
|
||||
# Make sure all containers are stopped
|
||||
args_2 = self.get_stop_cmd(self.check_mode)
|
||||
@ -835,8 +612,8 @@ class ContainerManager(DockerBaseClass):
|
||||
rc_2, stdout_2, stderr_2 = 0, b'', b''
|
||||
events_2 = []
|
||||
# Compose result
|
||||
result['changed'] = self.has_changes(events_1) or self.has_changes(events_2)
|
||||
result['actions'] = self.extract_actions(events_1) + self.extract_actions(events_2)
|
||||
result['changed'] = has_changes(events_1) or has_changes(events_2)
|
||||
result['actions'] = extract_actions(events_1) + extract_actions(events_2)
|
||||
result['stdout'] = to_native(self._combine_output(stdout_1, stdout_2))
|
||||
result['stderr'] = to_native(self._combine_output(stderr_1, stderr_2))
|
||||
self.update_failed(
|
||||
@ -866,8 +643,8 @@ class ContainerManager(DockerBaseClass):
|
||||
rc, stdout, stderr = self.client.call_cli(*args, cwd=self.project_src)
|
||||
events = self.parse_events(stderr, dry_run=self.check_mode)
|
||||
self.emit_warnings(events)
|
||||
result['changed'] = self.has_changes(events)
|
||||
result['actions'] = self.extract_actions(events)
|
||||
result['changed'] = has_changes(events)
|
||||
result['actions'] = extract_actions(events)
|
||||
result['stdout'] = to_native(stdout)
|
||||
result['stderr'] = to_native(stderr)
|
||||
self.update_failed(result, events, args, stdout, stderr, rc)
|
||||
@ -894,8 +671,8 @@ class ContainerManager(DockerBaseClass):
|
||||
rc, stdout, stderr = self.client.call_cli(*args, cwd=self.project_src)
|
||||
events = self.parse_events(stderr, dry_run=self.check_mode)
|
||||
self.emit_warnings(events)
|
||||
result['changed'] = self.has_changes(events)
|
||||
result['actions'] = self.extract_actions(events)
|
||||
result['changed'] = has_changes(events)
|
||||
result['actions'] = extract_actions(events)
|
||||
result['stdout'] = to_native(stdout)
|
||||
result['stderr'] = to_native(stderr)
|
||||
self.update_failed(result, events, args, stdout, stderr, rc)
|
||||
|
||||
16353
tests/unit/plugins/module_utils/compose_v2_test_cases.py
Normal file
16353
tests/unit/plugins/module_utils/compose_v2_test_cases.py
Normal file
File diff suppressed because it is too large
Load Diff
31
tests/unit/plugins/module_utils/test_compose_v2.py
Normal file
31
tests/unit/plugins/module_utils/test_compose_v2.py
Normal file
@ -0,0 +1,31 @@
|
||||
# Copyright 2022 Red Hat | Ansible
|
||||
# GNU General Public License v3.0+ (see LICENSES/GPL-3.0-or-later.txt or https://www.gnu.org/licenses/gpl-3.0.txt)
|
||||
# SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
from __future__ import (absolute_import, division, print_function)
|
||||
__metaclass__ = type
|
||||
|
||||
import pytest
|
||||
|
||||
from ansible_collections.community.docker.plugins.module_utils.compose_v2 import (
|
||||
parse_events,
|
||||
)
|
||||
|
||||
from .compose_v2_test_cases import EVENT_TEST_CASES
|
||||
|
||||
|
||||
@pytest.mark.parametrize(
|
||||
'test_id, compose_version, dry_run, stderr, events, warnings',
|
||||
EVENT_TEST_CASES,
|
||||
ids=[tc[0] for tc in EVENT_TEST_CASES],
|
||||
)
|
||||
def test_parse_events(test_id, compose_version, dry_run, stderr, events, warnings):
|
||||
collected_warnings = []
|
||||
|
||||
def collect_warning(msg):
|
||||
collected_warnings.append(msg)
|
||||
|
||||
collected_events = parse_events(stderr, dry_run=dry_run, warn_function=collect_warning)
|
||||
|
||||
assert events == collected_events
|
||||
assert warnings == collected_warnings
|
||||
Loading…
Reference in New Issue
Block a user