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|
#!/usr/bin/python
#
# Copyright 2016 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
DOCUMENTATION = '''
module: docker_compose
short_description: Manage multi-container Docker applications with Docker Compose V1
deprecated:
removed_in: 4.0.0
why: This module uses docker-compose v1, which is End of Life since July 2022.
alternative: Migrate to M(community.docker.docker_compose_v2)
author: "Chris Houseknecht (@chouseknecht)"
description:
- Uses Docker Compose to start, shutdown and scale services. B(This module requires docker-compose < 2.0.0.)
Use the M(community.docker.docker_compose_v2) module for using the modern Docker compose CLI plugin.
- Configuration can be read from a C(docker-compose.yml) or C(docker-compose.yaml) file or inline using the O(definition) option.
- See the examples for more details.
- Supports check mode.
- This module was called C(docker_service) before Ansible 2.8. The usage did not change.
extends_documentation_fragment:
- community.docker.docker
- community.docker.docker.docker_py_1_documentation
- community.docker.attributes
- community.docker.attributes.actiongroup_docker
attributes:
check_mode:
support: full
diff_mode:
support: none
options:
project_src:
description:
- Path to a directory containing a C(docker-compose.yml) or C(docker-compose.yaml) file.
- Mutually exclusive with O(definition).
- Required when no O(definition) is provided.
type: path
project_name:
description:
- Provide a project name. If not provided, the project name is taken from the basename of O(project_src).
- Required when O(definition) is provided.
type: str
env_file:
description:
- By default environment files are loaded from a C(.env) file located directly under the O(project_src) directory.
- O(env_file) can be used to specify the path of a custom environment file instead.
- The path is relative to the O(project_src) directory.
- Requires C(docker-compose) version 1.25.0 or greater.
- "Note: C(docker-compose) versions C(<=1.28) load the env file from the current working directory of the
C(docker-compose) command rather than O(project_src)."
type: path
version_added: 1.9.0
files:
description:
- List of Compose file names relative to O(project_src). Overrides C(docker-compose.yml) or C(docker-compose.yaml).
- Files are loaded and merged in the order given.
type: list
elements: path
profiles:
description:
- List of profiles to enable when starting services.
- Equivalent to C(docker-compose --profile).
- Requires C(docker-compose) version 1.28.0 or greater.
type: list
elements: str
version_added: 1.8.0
state:
description:
- Desired state of the project.
- Specifying V(present) is the same as running C(docker-compose up) resp. C(docker-compose stop) (with O(stopped=true)) resp. C(docker-compose restart)
(with O(restarted=true)).
- Specifying V(absent) is the same as running C(docker-compose down).
type: str
default: present
choices:
- absent
- present
services:
description:
- When O(state) is V(present) run C(docker-compose up) resp. C(docker-compose stop) (with O(stopped=true)) resp.
C(docker-compose restart) (with O(restarted=true)) on a subset of services.
- If empty, which is the default, the operation will be performed on all services defined in the Compose file (or inline O(definition)).
type: list
elements: str
scale:
description:
- When O(state) is V(present) scale services. Provide a dictionary of key/value pairs where the key
is the name of the service and the value is an integer count for the number of containers.
type: dict
dependencies:
description:
- When O(state) is V(present) specify whether or not to include linked services.
type: bool
default: true
definition:
description:
- Compose file describing one or more services, networks and volumes.
- Mutually exclusive with O(project_src) and O(files).
type: dict
hostname_check:
description:
- Whether or not to check the Docker daemon's hostname against the name provided in the client certificate.
type: bool
default: false
recreate:
description:
- By default containers will be recreated when their configuration differs from the service definition.
- Setting to V(never) ignores configuration differences and leaves existing containers unchanged.
- Setting to V(always) forces recreation of all existing containers.
type: str
default: smart
choices:
- always
- never
- smart
build:
description:
- Use with O(state=present) to always build images prior to starting the application.
- Same as running C(docker-compose build) with the pull option.
- Images will only be rebuilt if Docker detects a change in the Dockerfile or build directory contents.
- Use the O(nocache) option to ignore the image cache when performing the build.
- If an existing image is replaced, services using the image will be recreated unless O(recreate=never).
type: bool
default: false
pull:
description:
- Use with O(state=present) to always pull images prior to starting the application.
- Same as running C(docker-compose pull).
- When a new image is pulled, services using the image will be recreated unless O(recreate=never).
type: bool
default: false
nocache:
description:
- Use with the O(build) option to ignore the cache during the image build process.
type: bool
default: false
remove_images:
description:
- Use with O(state=absent) to remove all images or only local images.
type: str
choices:
- 'all'
- 'local'
remove_volumes:
description:
- Use with O(state=absent) to remove data volumes.
type: bool
default: false
stopped:
description:
- Use with O(state=present) to stop all containers defined in the Compose file.
- If O(services) is defined, only the containers listed there will be stopped.
- Requires C(docker-compose) version 1.17.0 or greater for full support. For older versions, the services will
first be started and then stopped when the service is supposed to be created as stopped.
type: bool
default: false
restarted:
description:
- Use with O(state=present) to restart all containers defined in the Compose file.
- If O(services) is defined, only the containers listed there will be restarted.
type: bool
default: false
remove_orphans:
description:
- Remove containers for services not defined in the Compose file.
type: bool
default: false
timeout:
description:
- Timeout in seconds for container shutdown when attached or when containers are already running.
- By default C(docker-compose) will use a V(10) seconds timeout unless C(default_grace_period) is defined for a
particular service in the O(project_src).
type: int
default: null
use_ssh_client:
description:
- Currently ignored for this module, but might suddenly be supported later on.
requirements:
- "L(Docker SDK for Python,https://docker-py.readthedocs.io/en/stable/) >= 1.8.0, < 7. Docker SDK for Python 7+ is incompatible to docker-compose v1."
- "docker-compose >= 1.7.0, < 2.0.0"
- "Docker API >= 1.25"
- "PyYAML >= 3.11"
seealso:
- module: community.docker.docker_compose_v2
'''
EXAMPLES = '''
# Examples use the django example at https://docs.docker.com/compose/django. Follow it to create the
# flask directory
- name: Run using a project directory
hosts: localhost
gather_facts: false
tasks:
- name: Tear down existing services
community.docker.docker_compose:
project_src: flask
state: absent
- name: Create and start services
community.docker.docker_compose:
project_src: flask
register: output
- name: Show results
ansible.builtin.debug:
var: output
- name: Run `docker-compose up` again
community.docker.docker_compose:
project_src: flask
build: false
register: output
- name: Show results
ansible.builtin.debug:
var: output
- ansible.builtin.assert:
that: not output.changed
- name: Stop all services
community.docker.docker_compose:
project_src: flask
build: false
stopped: true
register: output
- name: Show results
ansible.builtin.debug:
var: output
- name: Verify that web and db services are not running
ansible.builtin.assert:
that:
- "not output.services.web.flask_web_1.state.running"
- "not output.services.db.flask_db_1.state.running"
- name: Restart services
community.docker.docker_compose:
project_src: flask
build: false
restarted: true
register: output
- name: Show results
ansible.builtin.debug:
var: output
- name: Verify that web and db services are running
ansible.builtin.assert:
that:
- "output.services.web.flask_web_1.state.running"
- "output.services.db.flask_db_1.state.running"
- name: Scale the web service to 2
hosts: localhost
gather_facts: false
tasks:
- name: Scale the web service to two instances
community.docker.docker_compose:
project_src: flask
scale:
web: 2
register: output
- name: Show results
ansible.builtin.debug:
var: output
- name: Run with inline Compose file version 2
# https://docs.docker.com/compose/compose-file/compose-file-v2/
hosts: localhost
gather_facts: false
tasks:
- name: Remove flask project
community.docker.docker_compose:
project_src: flask
state: absent
- name: Start flask project with inline definition
community.docker.docker_compose:
project_name: flask
definition:
version: '2'
services:
db:
image: postgres
web:
build: "{{ playbook_dir }}/flask"
command: "python manage.py runserver 0.0.0.0:8000"
volumes:
- "{{ playbook_dir }}/flask:/code"
ports:
- "8000:8000"
depends_on:
- db
register: output
- name: Show results
ansible.builtin.debug:
var: output
- name: Verify that the db and web services are running
ansible.builtin.assert:
that:
- "output.services.web.flask_web_1.state.running"
- "output.services.db.flask_db_1.state.running"
- name: Run with inline Compose file version 1
# https://docs.docker.com/compose/compose-file/compose-file-v1/
hosts: localhost
gather_facts: false
tasks:
- name: Remove flask project
community.docker.docker_compose:
project_src: flask
state: absent
- name: Start flask project with inline definition
community.docker.docker_compose:
project_name: flask
definition:
db:
image: postgres
web:
build: "{{ playbook_dir }}/flask"
command: "python manage.py runserver 0.0.0.0:8000"
volumes:
- "{{ playbook_dir }}/flask:/code"
ports:
- "8000:8000"
links:
- db
register: output
- name: Show results
ansible.builtin.debug:
var: output
- name: Verify that web and db services are running
ansible.builtin.assert:
that:
- "output.services.web.flask_web_1.state.running"
- "output.services.db.flask_db_1.state.running"
'''
RETURN = '''
services:
description:
- A dictionary mapping the service's name to a dictionary of containers.
returned: success
type: complex
contains:
container_name:
description: Name of the container. Format is C(project_service_#).
returned: success
type: complex
contains:
cmd:
description: One or more commands to be executed in the container.
returned: success
type: list
elements: str
example: ["postgres"]
image:
description: Name of the image from which the container was built.
returned: success
type: str
example: postgres
labels:
description: Meta data assigned to the container.
returned: success
type: dict
example: {...}
networks:
description: Contains a dictionary for each network to which the container is a member.
returned: success
type: list
elements: dict
contains:
IPAddress:
description: The IP address assigned to the container.
returned: success
type: str
example: 172.17.0.2
IPPrefixLen:
description: Number of bits used by the subnet.
returned: success
type: int
example: 16
aliases:
description: Aliases assigned to the container by the network.
returned: success
type: list
elements: str
example: ['db']
globalIPv6:
description: IPv6 address assigned to the container.
returned: success
type: str
example: ''
globalIPv6PrefixLen:
description: IPv6 subnet length.
returned: success
type: int
example: 0
links:
description: List of container names to which this container is linked.
returned: success
type: list
elements: str
example: null
macAddress:
description: Mac Address assigned to the virtual NIC.
returned: success
type: str
example: "02:42:ac:11:00:02"
state:
description: Information regarding the current disposition of the container.
returned: success
type: dict
contains:
running:
description: Whether or not the container is up with a running process.
returned: success
type: bool
example: true
status:
description: Description of the running state.
returned: success
type: str
example: running
actions:
description: Provides the actions to be taken on each service as determined by compose.
returned: when in check mode or O(debug=true)
type: complex
contains:
service_name:
description: Name of the service.
returned: always
type: complex
contains:
pulled_image:
description: Provides image details when a new image is pulled for the service.
returned: on image pull
type: complex
contains:
name:
description: name of the image
returned: always
type: str
id:
description: image hash
returned: always
type: str
built_image:
description: Provides image details when a new image is built for the service.
returned: on image build
type: complex
contains:
name:
description: name of the image
returned: always
type: str
id:
description: image hash
returned: always
type: str
action:
description: A descriptive name of the action to be performed on the service's containers.
returned: always
type: list
elements: str
contains:
id:
description: the container's long ID
returned: always
type: str
name:
description: the container's name
returned: always
type: str
short_id:
description: the container's short ID
returned: always
type: str
'''
import os
import re
import sys
import tempfile
import traceback
from contextlib import contextmanager
from ansible_collections.community.docker.plugins.module_utils.version import LooseVersion
try:
import yaml
HAS_YAML = True
HAS_YAML_EXC = None
except ImportError as dummy:
HAS_YAML = False
HAS_YAML_EXC = traceback.format_exc()
try:
from docker.errors import DockerException
except ImportError:
# missing Docker SDK for Python handled in ansible.module_utils.docker.common
pass
try:
from compose import __version__ as compose_version
from compose.cli.command import project_from_options
from compose.service import NoSuchImageError
from compose.cli.main import convergence_strategy_from_opts, build_action_from_opts, image_type_from_opt
from compose.const import LABEL_SERVICE, LABEL_PROJECT, LABEL_ONE_OFF
HAS_COMPOSE = True
HAS_COMPOSE_EXC = None
MINIMUM_COMPOSE_VERSION = '1.7.0'
except ImportError as dummy:
HAS_COMPOSE = False
HAS_COMPOSE_EXC = traceback.format_exc()
from ansible.module_utils.common.text.converters import to_native
from ansible_collections.community.docker.plugins.module_utils.common import (
AnsibleDockerClient,
RequestException,
)
from ansible_collections.community.docker.plugins.module_utils.util import (
DockerBaseClass,
)
AUTH_PARAM_MAPPING = {
u'docker_host': u'--host',
u'tls': u'--tls',
u'cacert_path': u'--tlscacert',
u'cert_path': u'--tlscert',
u'key_path': u'--tlskey',
u'tls_verify': u'--tlsverify'
}
@contextmanager
def stdout_redirector(path_name):
old_stdout = sys.stdout
fd = open(path_name, 'w')
sys.stdout = fd
try:
yield
finally:
sys.stdout = old_stdout
@contextmanager
def stderr_redirector(path_name):
old_fh = sys.stderr
fd = open(path_name, 'w')
sys.stderr = fd
try:
yield
finally:
sys.stderr = old_fh
def make_redirection_tempfiles():
dummy, out_redir_name = tempfile.mkstemp(prefix="ansible")
dummy, err_redir_name = tempfile.mkstemp(prefix="ansible")
return (out_redir_name, err_redir_name)
def cleanup_redirection_tempfiles(out_name, err_name):
for i in [out_name, err_name]:
os.remove(i)
def get_redirected_output(path_name):
output = []
with open(path_name, 'r') as fd:
for line in fd:
# strip terminal format/color chars
new_line = re.sub(r'\x1b\[.+m', '', line)
output.append(new_line)
os.remove(path_name)
return output
def attempt_extract_errors(exc_str, stdout, stderr):
errors = [l.strip() for l in stderr if l.strip().startswith('ERROR:')]
errors.extend([l.strip() for l in stdout if l.strip().startswith('ERROR:')])
warnings = [l.strip() for l in stderr if l.strip().startswith('WARNING:')]
warnings.extend([l.strip() for l in stdout if l.strip().startswith('WARNING:')])
# assume either the exception body (if present) or the last warning was the 'most'
# fatal.
if exc_str.strip():
msg = exc_str.strip()
elif errors:
msg = errors[-1].encode('utf-8')
else:
msg = 'unknown cause'
return {
'warnings': [to_native(w) for w in warnings],
'errors': [to_native(e) for e in errors],
'msg': msg,
'module_stderr': ''.join(stderr),
'module_stdout': ''.join(stdout)
}
def get_failure_info(exc, out_name, err_name=None, msg_format='%s'):
if err_name is None:
stderr = []
else:
stderr = get_redirected_output(err_name)
stdout = get_redirected_output(out_name)
reason = attempt_extract_errors(str(exc), stdout, stderr)
reason['msg'] = msg_format % reason['msg']
return reason
class ContainerManager(DockerBaseClass):
def __init__(self, client):
super(ContainerManager, self).__init__()
self.client = client
self.project_src = None
self.files = None
self.project_name = None
self.state = None
self.definition = None
self.hostname_check = None
self.timeout = None
self.remove_images = None
self.remove_orphans = None
self.remove_volumes = None
self.stopped = None
self.restarted = None
self.recreate = None
self.build = None
self.dependencies = None
self.services = None
self.scale = None
self.debug = None
self.pull = None
self.nocache = None
for key, value in client.module.params.items():
setattr(self, key, value)
if self.api_version:
os.environ['COMPOSE_API_VERSION'] = self.api_version
self.check_mode = client.check_mode
if not self.debug:
self.debug = client.module._debug
self.options = dict()
self.options.update(self._get_auth_options())
self.options[u'--skip-hostname-check'] = (not self.hostname_check)
if self.project_name:
self.options[u'--project-name'] = self.project_name
if self.env_file:
self.options[u'--env-file'] = self.env_file
if self.files:
self.options[u'--file'] = self.files
if self.profiles:
self.options[u'--profile'] = self.profiles
if not HAS_COMPOSE:
self.client.fail("Unable to load docker-compose. Try `pip install docker-compose`. Error: %s" %
to_native(HAS_COMPOSE_EXC))
if LooseVersion(compose_version) < LooseVersion(MINIMUM_COMPOSE_VERSION):
self.client.fail("Found docker-compose version %s. Minimum required version is %s. "
"Upgrade docker-compose to a min version of %s." %
(compose_version, MINIMUM_COMPOSE_VERSION, MINIMUM_COMPOSE_VERSION))
if self.restarted and self.stopped:
self.client.fail("Cannot use restarted and stopped at the same time.")
self.log("options: ")
self.log(self.options, pretty_print=True)
if self.definition:
if not HAS_YAML:
self.client.fail("Unable to load yaml. Try `pip install PyYAML`. Error: %s" % to_native(HAS_YAML_EXC))
if not self.project_name:
self.client.fail("Parameter error - project_name required when providing definition.")
self.project_src = tempfile.mkdtemp(prefix="ansible")
compose_file = os.path.join(self.project_src, "docker-compose.yml")
try:
self.log('writing: ')
self.log(yaml.dump(self.definition, default_flow_style=False))
with open(compose_file, 'w') as f:
f.write(yaml.dump(self.definition, default_flow_style=False))
except Exception as exc:
self.client.fail("Error writing to %s - %s" % (compose_file, to_native(exc)))
else:
if not self.project_src:
self.client.fail("Parameter error - project_src required.")
try:
self.log("project_src: %s" % self.project_src)
self.project = project_from_options(self.project_src, self.options)
except Exception as exc:
self.client.fail("Configuration error - %s" % to_native(exc))
def exec_module(self):
result = dict()
if self.state == 'present':
result = self.cmd_up()
elif self.state == 'absent':
result = self.cmd_down()
if self.definition:
compose_file = os.path.join(self.project_src, "docker-compose.yml")
self.log("removing %s" % compose_file)
os.remove(compose_file)
self.log("removing %s" % self.project_src)
os.rmdir(self.project_src)
if not self.check_mode and not self.debug and result.get('actions'):
result.pop('actions')
return result
def _get_auth_options(self):
options = dict()
for key, value in self.client.auth_params.items():
if value is not None:
option = AUTH_PARAM_MAPPING.get(key)
if option:
options[option] = value
return options
def cmd_up(self):
start_deps = self.dependencies
service_names = self.services
detached = True
result = dict(changed=False, actions=[], services=dict())
up_options = {
u'--no-recreate': False,
u'--build': False,
u'--no-build': False,
u'--no-deps': False,
u'--force-recreate': False,
}
if self.recreate == 'never':
up_options[u'--no-recreate'] = True
elif self.recreate == 'always':
up_options[u'--force-recreate'] = True
if self.remove_orphans:
up_options[u'--remove-orphans'] = True
converge = convergence_strategy_from_opts(up_options)
self.log("convergence strategy: %s" % converge)
if self.pull:
pull_output = self.cmd_pull()
result['changed'] |= pull_output['changed']
result['actions'] += pull_output['actions']
if self.build:
build_output = self.cmd_build()
result['changed'] |= build_output['changed']
result['actions'] += build_output['actions']
if self.remove_orphans:
containers = self.client.containers(
filters={
'label': [
'{0}={1}'.format(LABEL_PROJECT, self.project.name),
'{0}={1}'.format(LABEL_ONE_OFF, "False")
],
}
)
orphans = []
for container in containers:
service_name = container.get('Labels', {}).get(LABEL_SERVICE)
if service_name not in self.project.service_names:
orphans.append(service_name)
if orphans:
result['changed'] = True
for service in self.project.services:
if not service_names or service.name in service_names:
plan = service.convergence_plan(strategy=converge)
if plan.action == 'start' and self.stopped:
# In case the only action is starting, and the user requested
# that the service should be stopped, ignore this service.
continue
if not self._service_profile_enabled(service):
continue
if plan.action != 'noop':
result['changed'] = True
result_action = dict(service=service.name)
result_action[plan.action] = []
for container in plan.containers:
result_action[plan.action].append(dict(
id=container.id,
name=container.name,
short_id=container.short_id,
))
result['actions'].append(result_action)
if not self.check_mode and result['changed']:
out_redir_name, err_redir_name = make_redirection_tempfiles()
try:
with stdout_redirector(out_redir_name):
with stderr_redirector(err_redir_name):
do_build = build_action_from_opts(up_options)
self.log('Setting do_build to %s' % do_build)
up_kwargs = {
'service_names': service_names,
'start_deps': start_deps,
'strategy': converge,
'do_build': do_build,
'detached': detached,
'remove_orphans': self.remove_orphans,
'timeout': self.timeout,
}
if LooseVersion(compose_version) >= LooseVersion('1.17.0'):
up_kwargs['start'] = not self.stopped
elif self.stopped:
self.client.module.warn(
"The 'stopped' option requires docker-compose version >= 1.17.0. " +
"This task was run with docker-compose version %s." % compose_version
)
self.project.up(**up_kwargs)
except Exception as exc:
fail_reason = get_failure_info(exc, out_redir_name, err_redir_name,
msg_format="Error starting project %s")
self.client.fail(**fail_reason)
else:
cleanup_redirection_tempfiles(out_redir_name, err_redir_name)
if self.stopped:
stop_output = self.cmd_stop(service_names)
result['changed'] |= stop_output['changed']
result['actions'] += stop_output['actions']
if self.restarted:
restart_output = self.cmd_restart(service_names)
result['changed'] |= restart_output['changed']
result['actions'] += restart_output['actions']
if self.scale:
scale_output = self.cmd_scale()
result['changed'] |= scale_output['changed']
result['actions'] += scale_output['actions']
for service in self.project.services:
service_facts = dict()
result['services'][service.name] = service_facts
for container in service.containers(stopped=True):
inspection = container.inspect()
# pare down the inspection data to the most useful bits
facts = dict(
cmd=[],
labels=dict(),
image=None,
state=dict(
running=None,
status=None
),
networks=dict()
)
if inspection['Config'].get('Cmd', None) is not None:
facts['cmd'] = inspection['Config']['Cmd']
if inspection['Config'].get('Labels', None) is not None:
facts['labels'] = inspection['Config']['Labels']
if inspection['Config'].get('Image', None) is not None:
facts['image'] = inspection['Config']['Image']
if inspection['State'].get('Running', None) is not None:
facts['state']['running'] = inspection['State']['Running']
if inspection['State'].get('Status', None) is not None:
facts['state']['status'] = inspection['State']['Status']
if inspection.get('NetworkSettings') and inspection['NetworkSettings'].get('Networks'):
networks = inspection['NetworkSettings']['Networks']
for key in networks:
facts['networks'][key] = dict(
aliases=[],
globalIPv6=None,
globalIPv6PrefixLen=0,
IPAddress=None,
IPPrefixLen=0,
links=None,
macAddress=None,
)
if networks[key].get('Aliases', None) is not None:
facts['networks'][key]['aliases'] = networks[key]['Aliases']
if networks[key].get('GlobalIPv6Address', None) is not None:
facts['networks'][key]['globalIPv6'] = networks[key]['GlobalIPv6Address']
if networks[key].get('GlobalIPv6PrefixLen', None) is not None:
facts['networks'][key]['globalIPv6PrefixLen'] = networks[key]['GlobalIPv6PrefixLen']
if networks[key].get('IPAddress', None) is not None:
facts['networks'][key]['IPAddress'] = networks[key]['IPAddress']
if networks[key].get('IPPrefixLen', None) is not None:
facts['networks'][key]['IPPrefixLen'] = networks[key]['IPPrefixLen']
if networks[key].get('Links', None) is not None:
facts['networks'][key]['links'] = networks[key]['Links']
if networks[key].get('MacAddress', None) is not None:
facts['networks'][key]['macAddress'] = networks[key]['MacAddress']
service_facts[container.name] = facts
return result
def cmd_pull(self):
result = dict(
changed=False,
actions=[],
)
if not self.check_mode:
for service in self.project.get_services(self.services, include_deps=False):
if 'image' not in service.options:
continue
self.log('Pulling image for service %s' % service.name)
# store the existing image ID
old_image_id = ''
try:
image = service.image()
if image and image.get('Id'):
old_image_id = image['Id']
except NoSuchImageError:
pass
except Exception as exc:
self.client.fail("Error: service image lookup failed - %s" % to_native(exc))
out_redir_name, err_redir_name = make_redirection_tempfiles()
# pull the image
try:
with stdout_redirector(out_redir_name):
with stderr_redirector(err_redir_name):
service.pull(ignore_pull_failures=False)
except Exception as exc:
fail_reason = get_failure_info(exc, out_redir_name, err_redir_name,
msg_format="Error: pull failed with %s")
self.client.fail(**fail_reason)
else:
cleanup_redirection_tempfiles(out_redir_name, err_redir_name)
# store the new image ID
new_image_id = ''
try:
image = service.image()
if image and image.get('Id'):
new_image_id = image['Id']
except NoSuchImageError as exc:
self.client.fail("Error: service image lookup failed after pull - %s" % to_native(exc))
if new_image_id != old_image_id:
# if a new image was pulled
result['changed'] = True
result['actions'].append(dict(
service=service.name,
pulled_image=dict(
name=service.image_name,
id=new_image_id
)
))
return result
def cmd_build(self):
result = dict(
changed=False,
actions=[]
)
if not self.check_mode:
for service in self.project.get_services(self.services, include_deps=False):
if service.can_be_built():
self.log('Building image for service %s' % service.name)
# store the existing image ID
old_image_id = ''
try:
image = service.image()
if image and image.get('Id'):
old_image_id = image['Id']
except NoSuchImageError:
pass
except Exception as exc:
self.client.fail("Error: service image lookup failed - %s" % to_native(exc))
out_redir_name, err_redir_name = make_redirection_tempfiles()
# build the image
try:
with stdout_redirector(out_redir_name):
with stderr_redirector(err_redir_name):
new_image_id = service.build(pull=self.pull, no_cache=self.nocache)
except Exception as exc:
fail_reason = get_failure_info(exc, out_redir_name, err_redir_name,
msg_format="Error: build failed with %s")
self.client.fail(**fail_reason)
else:
cleanup_redirection_tempfiles(out_redir_name, err_redir_name)
if new_image_id not in old_image_id:
# if a new image was built
result['changed'] = True
result['actions'].append(dict(
service=service.name,
built_image=dict(
name=service.image_name,
id=new_image_id
)
))
return result
def _service_profile_enabled(self, service):
"""Returns `True` if the service has no profiles defined or has a profile which is among
the profiles passed to the `docker compose up` command. Otherwise returns `False`.
"""
if LooseVersion(compose_version) < LooseVersion('1.28.0'):
return True
return service.enabled_for_profiles(self.profiles or [])
def cmd_down(self):
result = dict(
changed=False,
actions=[]
)
for service in self.project.services:
containers = service.containers(stopped=True)
if len(containers):
result['changed'] = True
result['actions'].append(dict(
service=service.name,
deleted=[container.name for container in containers]
))
if not self.check_mode and result['changed']:
image_type = image_type_from_opt('--rmi', self.remove_images)
out_redir_name, err_redir_name = make_redirection_tempfiles()
try:
with stdout_redirector(out_redir_name):
with stderr_redirector(err_redir_name):
self.project.down(image_type, self.remove_volumes, self.remove_orphans)
except Exception as exc:
fail_reason = get_failure_info(exc, out_redir_name, err_redir_name,
msg_format="Error stopping project - %s")
self.client.fail(**fail_reason)
else:
cleanup_redirection_tempfiles(out_redir_name, err_redir_name)
return result
def cmd_stop(self, service_names):
result = dict(
changed=False,
actions=[]
)
for service in self.project.services:
if not service_names or service.name in service_names:
service_res = dict(
service=service.name,
stop=[]
)
for container in service.containers(stopped=False):
result['changed'] = True
service_res['stop'].append(dict(
id=container.id,
name=container.name,
short_id=container.short_id
))
result['actions'].append(service_res)
if not self.check_mode and result['changed']:
out_redir_name, err_redir_name = make_redirection_tempfiles()
try:
with stdout_redirector(out_redir_name):
with stderr_redirector(err_redir_name):
self.project.stop(service_names=service_names, timeout=self.timeout)
except Exception as exc:
fail_reason = get_failure_info(exc, out_redir_name, err_redir_name,
msg_format="Error stopping project %s")
self.client.fail(**fail_reason)
else:
cleanup_redirection_tempfiles(out_redir_name, err_redir_name)
return result
def cmd_restart(self, service_names):
result = dict(
changed=False,
actions=[]
)
for service in self.project.services:
if not service_names or service.name in service_names:
service_res = dict(
service=service.name,
restart=[]
)
for container in service.containers(stopped=True):
result['changed'] = True
service_res['restart'].append(dict(
id=container.id,
name=container.name,
short_id=container.short_id
))
result['actions'].append(service_res)
if not self.check_mode and result['changed']:
out_redir_name, err_redir_name = make_redirection_tempfiles()
try:
with stdout_redirector(out_redir_name):
with stderr_redirector(err_redir_name):
self.project.restart(service_names=service_names, timeout=self.timeout)
except Exception as exc:
fail_reason = get_failure_info(exc, out_redir_name, err_redir_name,
msg_format="Error restarting project %s")
self.client.fail(**fail_reason)
else:
cleanup_redirection_tempfiles(out_redir_name, err_redir_name)
return result
def cmd_scale(self):
result = dict(
changed=False,
actions=[]
)
for service in self.project.services:
if service.name in self.scale:
service_res = dict(
service=service.name,
scale=0
)
containers = service.containers(stopped=True)
scale = self.parse_scale(service.name)
if len(containers) != scale:
result['changed'] = True
service_res['scale'] = scale - len(containers)
if not self.check_mode:
out_redir_name, err_redir_name = make_redirection_tempfiles()
try:
with stdout_redirector(out_redir_name):
with stderr_redirector(err_redir_name):
service.scale(scale)
except Exception as exc:
fail_reason = get_failure_info(exc, out_redir_name, err_redir_name,
msg_format="Error scaling {0} - %s".format(service.name))
self.client.fail(**fail_reason)
else:
cleanup_redirection_tempfiles(out_redir_name, err_redir_name)
result['actions'].append(service_res)
return result
def parse_scale(self, service_name):
try:
return int(self.scale[service_name])
except ValueError:
self.client.fail("Error scaling %s - expected int, got %s",
service_name, to_native(type(self.scale[service_name])))
def main():
argument_spec = dict(
project_src=dict(type='path'),
project_name=dict(type='str',),
env_file=dict(type='path'),
files=dict(type='list', elements='path'),
profiles=dict(type='list', elements='str'),
state=dict(type='str', default='present', choices=['absent', 'present']),
definition=dict(type='dict'),
hostname_check=dict(type='bool', default=False),
recreate=dict(type='str', default='smart', choices=['always', 'never', 'smart']),
build=dict(type='bool', default=False),
remove_images=dict(type='str', choices=['all', 'local']),
remove_volumes=dict(type='bool', default=False),
remove_orphans=dict(type='bool', default=False),
stopped=dict(type='bool', default=False),
restarted=dict(type='bool', default=False),
scale=dict(type='dict'),
services=dict(type='list', elements='str'),
dependencies=dict(type='bool', default=True),
pull=dict(type='bool', default=False),
nocache=dict(type='bool', default=False),
debug=dict(type='bool', default=False),
timeout=dict(type='int')
)
mutually_exclusive = [
('definition', 'project_src'),
('definition', 'files')
]
client = AnsibleDockerClient(
argument_spec=argument_spec,
mutually_exclusive=mutually_exclusive,
supports_check_mode=True,
)
try:
result = ContainerManager(client).exec_module()
client.module.exit_json(**result)
except DockerException as e:
client.fail('An unexpected docker error occurred: {0}'.format(to_native(e)), exception=traceback.format_exc())
except RequestException as e:
client.fail(
'An unexpected requests error occurred when Docker SDK for Python tried to talk to the docker daemon: {0}'.format(to_native(e)),
exception=traceback.format_exc())
if __name__ == '__main__':
main()
|