1160 lines
42 KiB
Python
1160 lines
42 KiB
Python
#!/usr/bin/python
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#
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# Copyright 2016 Red Hat | Ansible
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# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
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from __future__ import absolute_import, division, print_function
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__metaclass__ = type
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DOCUMENTATION = '''
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module: docker_compose
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short_description: Manage multi-container Docker applications with Docker Compose.
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author: "Chris Houseknecht (@chouseknecht)"
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description:
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- Uses Docker Compose to start, shutdown and scale services.
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- Works with compose versions 1 and 2.
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- Configuration can be read from a C(docker-compose.yml) or C(docker-compose.yaml) file or inline using the I(definition) option.
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- See the examples for more details.
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- Supports check mode.
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- This module was called C(docker_service) before Ansible 2.8. The usage did not change.
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options:
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project_src:
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description:
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- Path to a directory containing a C(docker-compose.yml) or C(docker-compose.yaml) file.
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- Mutually exclusive with I(definition).
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- Required when no I(definition) is provided.
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type: path
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project_name:
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description:
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- Provide a project name. If not provided, the project name is taken from the basename of I(project_src).
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- Required when I(definition) is provided.
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type: str
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files:
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description:
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- List of Compose file names relative to I(project_src). Overrides C(docker-compose.yml) or C(docker-compose.yaml).
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- Files are loaded and merged in the order given.
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type: list
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elements: path
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state:
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description:
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- Desired state of the project.
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- Specifying C(present) is the same as running C(docker-compose up) resp. C(docker-compose stop) (with I(stopped)) resp. C(docker-compose restart)
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(with I(restarted)).
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- Specifying C(absent) is the same as running C(docker-compose down).
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type: str
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default: present
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choices:
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- absent
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- present
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services:
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description:
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- When I(state) is C(present) run C(docker-compose up) resp. C(docker-compose stop) (with I(stopped)) resp. C(docker-compose restart) (with I(restarted))
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on a subset of services.
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- If empty, which is the default, the operation will be performed on all services defined in the Compose file (or inline I(definition)).
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type: list
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elements: str
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scale:
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description:
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- When I(state) is C(present) scale services. Provide a dictionary of key/value pairs where the key
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is the name of the service and the value is an integer count for the number of containers.
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type: dict
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dependencies:
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description:
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- When I(state) is C(present) specify whether or not to include linked services.
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type: bool
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default: yes
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definition:
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description:
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- Compose file describing one or more services, networks and volumes.
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- Mutually exclusive with I(project_src) and I(files).
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type: dict
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hostname_check:
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description:
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- Whether or not to check the Docker daemon's hostname against the name provided in the client certificate.
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type: bool
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default: no
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recreate:
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description:
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- By default containers will be recreated when their configuration differs from the service definition.
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- Setting to C(never) ignores configuration differences and leaves existing containers unchanged.
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- Setting to C(always) forces recreation of all existing containers.
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type: str
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default: smart
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choices:
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- always
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- never
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- smart
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build:
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description:
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- Use with I(state) C(present) to always build images prior to starting the application.
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- Same as running C(docker-compose build) with the pull option.
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- Images will only be rebuilt if Docker detects a change in the Dockerfile or build directory contents.
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- Use the I(nocache) option to ignore the image cache when performing the build.
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- If an existing image is replaced, services using the image will be recreated unless I(recreate) is C(never).
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type: bool
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default: no
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pull:
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description:
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- Use with I(state) C(present) to always pull images prior to starting the application.
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- Same as running C(docker-compose pull).
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- When a new image is pulled, services using the image will be recreated unless I(recreate) is C(never).
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type: bool
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default: no
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nocache:
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description:
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- Use with the I(build) option to ignore the cache during the image build process.
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type: bool
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default: no
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remove_images:
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description:
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- Use with I(state) C(absent) to remove all images or only local images.
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type: str
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choices:
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- 'all'
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- 'local'
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remove_volumes:
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description:
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- Use with I(state) C(absent) to remove data volumes.
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type: bool
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default: no
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stopped:
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description:
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- Use with I(state) C(present) to stop all containers defined in the Compose file.
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- If I(services) is defined, only the containers listed there will be stopped.
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type: bool
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default: no
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restarted:
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description:
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- Use with I(state) C(present) to restart all containers defined in the Compose file.
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- If I(services) is defined, only the containers listed there will be restarted.
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type: bool
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default: no
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remove_orphans:
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description:
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- Remove containers for services not defined in the Compose file.
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type: bool
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default: no
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timeout:
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description:
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- Timeout in seconds for container shutdown when attached or when containers are already running.
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type: int
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default: 10
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use_ssh_client:
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description:
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- Currently ignored for this module, but might suddenly be supported later on.
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extends_documentation_fragment:
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- community.docker.docker
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- community.docker.docker.docker_py_1_documentation
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requirements:
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- "L(Docker SDK for Python,https://docker-py.readthedocs.io/en/stable/) >= 1.8.0 (use L(docker-py,https://pypi.org/project/docker-py/) for Python 2.6)"
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- "docker-compose >= 1.7.0"
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- "Docker API >= 1.20"
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- "PyYAML >= 3.11"
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'''
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EXAMPLES = '''
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# Examples use the django example at https://docs.docker.com/compose/django. Follow it to create the
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# flask directory
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- name: Run using a project directory
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hosts: localhost
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gather_facts: no
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tasks:
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- name: Tear down existing services
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community.docker.docker_compose:
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project_src: flask
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state: absent
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- name: Create and start services
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community.docker.docker_compose:
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project_src: flask
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register: output
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- ansible.builtin.debug:
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var: output
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- name: Run `docker-compose up` again
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community.docker.docker_compose:
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project_src: flask
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build: no
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register: output
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- ansible.builtin.debug:
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var: output
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- ansible.builtin.assert:
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that: "not output.changed "
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- name: Stop all services
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community.docker.docker_compose:
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project_src: flask
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build: no
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stopped: yes
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register: output
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- ansible.builtin.debug:
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var: output
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- ansible.builtin.assert:
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that:
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- "not web.flask_web_1.state.running"
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- "not db.flask_db_1.state.running"
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- name: Restart services
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community.docker.docker_compose:
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project_src: flask
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build: no
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restarted: yes
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register: output
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- ansible.builtin.debug:
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var: output
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- ansible.builtin.assert:
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that:
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- "web.flask_web_1.state.running"
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- "db.flask_db_1.state.running"
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- name: Scale the web service to 2
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hosts: localhost
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gather_facts: no
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tasks:
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- community.docker.docker_compose:
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project_src: flask
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scale:
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web: 2
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register: output
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- ansible.builtin.debug:
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var: output
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- name: Run with inline v2 compose
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hosts: localhost
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gather_facts: no
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tasks:
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- community.docker.docker_compose:
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project_src: flask
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state: absent
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- community.docker.docker_compose:
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project_name: flask
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definition:
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version: '2'
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services:
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db:
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image: postgres
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web:
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build: "{{ playbook_dir }}/flask"
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command: "python manage.py runserver 0.0.0.0:8000"
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volumes:
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- "{{ playbook_dir }}/flask:/code"
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ports:
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- "8000:8000"
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depends_on:
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- db
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register: output
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- ansible.builtin.debug:
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var: output
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- ansible.builtin.assert:
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that:
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- "web.flask_web_1.state.running"
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- "db.flask_db_1.state.running"
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- name: Run with inline v1 compose
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hosts: localhost
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gather_facts: no
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tasks:
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- community.docker.docker_compose:
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project_src: flask
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state: absent
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- community.docker.docker_compose:
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project_name: flask
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definition:
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db:
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image: postgres
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web:
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build: "{{ playbook_dir }}/flask"
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command: "python manage.py runserver 0.0.0.0:8000"
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volumes:
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- "{{ playbook_dir }}/flask:/code"
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ports:
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- "8000:8000"
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links:
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- db
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register: output
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- ansible.builtin.debug:
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var: output
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- ansible.builtin.assert:
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that:
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- "web.flask_web_1.state.running"
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- "db.flask_db_1.state.running"
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'''
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RETURN = '''
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services:
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description:
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- A dictionary mapping the service's name to a dictionary of containers.
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returned: success
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type: complex
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contains:
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container_name:
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description: Name of the container. Format is C(project_service_#).
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returned: success
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type: complex
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contains:
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cmd:
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description: One or more commands to be executed in the container.
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returned: success
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type: list
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elements: str
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example: ["postgres"]
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image:
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description: Name of the image from which the container was built.
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returned: success
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type: str
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example: postgres
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labels:
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description: Meta data assigned to the container.
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returned: success
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type: dict
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example: {...}
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networks:
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description: Contains a dictionary for each network to which the container is a member.
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returned: success
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type: list
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elements: dict
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contains:
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IPAddress:
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description: The IP address assigned to the container.
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returned: success
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type: str
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example: 172.17.0.2
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IPPrefixLen:
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description: Number of bits used by the subnet.
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returned: success
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type: int
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example: 16
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aliases:
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description: Aliases assigned to the container by the network.
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returned: success
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type: list
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elements: str
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example: ['db']
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globalIPv6:
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description: IPv6 address assigned to the container.
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returned: success
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type: str
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example: ''
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globalIPv6PrefixLen:
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description: IPv6 subnet length.
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returned: success
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type: int
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example: 0
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links:
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description: List of container names to which this container is linked.
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returned: success
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type: list
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elements: str
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example: null
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macAddress:
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description: Mac Address assigned to the virtual NIC.
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returned: success
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type: str
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example: "02:42:ac:11:00:02"
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state:
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description: Information regarding the current disposition of the container.
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returned: success
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type: dict
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contains:
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running:
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description: Whether or not the container is up with a running process.
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returned: success
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type: bool
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example: true
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status:
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description: Description of the running state.
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returned: success
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type: str
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example: running
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actions:
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description: Provides the actions to be taken on each service as determined by compose.
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returned: when in check mode or I(debug) is C(yes)
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type: complex
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contains:
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service_name:
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description: Name of the service.
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returned: always
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type: complex
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contains:
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pulled_image:
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description: Provides image details when a new image is pulled for the service.
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returned: on image pull
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type: complex
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contains:
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name:
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description: name of the image
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returned: always
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type: str
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id:
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description: image hash
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returned: always
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type: str
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built_image:
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description: Provides image details when a new image is built for the service.
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returned: on image build
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type: complex
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contains:
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name:
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description: name of the image
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returned: always
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type: str
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id:
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description: image hash
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returned: always
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type: str
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action:
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description: A descriptive name of the action to be performed on the service's containers.
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returned: always
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type: list
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elements: str
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contains:
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id:
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description: the container's long ID
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returned: always
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type: str
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name:
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description: the container's name
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returned: always
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type: str
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short_id:
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description: the container's short ID
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returned: always
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type: str
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'''
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import os
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import re
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import sys
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import tempfile
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import traceback
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from contextlib import contextmanager
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from distutils.version import LooseVersion
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try:
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import yaml
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HAS_YAML = True
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HAS_YAML_EXC = None
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except ImportError as dummy:
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HAS_YAML = False
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HAS_YAML_EXC = traceback.format_exc()
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try:
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from docker.errors import DockerException
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except ImportError:
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# missing Docker SDK for Python handled in ansible.module_utils.docker.common
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pass
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try:
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from compose import __version__ as compose_version
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from compose.cli.command import project_from_options
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from compose.service import NoSuchImageError
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from compose.cli.main import convergence_strategy_from_opts, build_action_from_opts, image_type_from_opt
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from compose.const import DEFAULT_TIMEOUT, LABEL_SERVICE, LABEL_PROJECT, LABEL_ONE_OFF
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HAS_COMPOSE = True
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HAS_COMPOSE_EXC = None
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MINIMUM_COMPOSE_VERSION = '1.7.0'
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except ImportError as dummy:
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HAS_COMPOSE = False
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HAS_COMPOSE_EXC = traceback.format_exc()
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DEFAULT_TIMEOUT = 10
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from ansible.module_utils._text import to_native
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from ansible_collections.community.docker.plugins.module_utils.common import (
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AnsibleDockerClient,
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DockerBaseClass,
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RequestException,
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)
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AUTH_PARAM_MAPPING = {
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u'docker_host': u'--host',
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u'tls': u'--tls',
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u'cacert_path': u'--tlscacert',
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u'cert_path': u'--tlscert',
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u'key_path': u'--tlskey',
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u'tls_verify': u'--tlsverify'
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}
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@contextmanager
|
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def stdout_redirector(path_name):
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old_stdout = sys.stdout
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fd = open(path_name, 'w')
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sys.stdout = fd
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try:
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yield
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finally:
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sys.stdout = old_stdout
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@contextmanager
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def stderr_redirector(path_name):
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old_fh = sys.stderr
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fd = open(path_name, 'w')
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sys.stderr = fd
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try:
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yield
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finally:
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sys.stderr = old_fh
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|
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|
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def make_redirection_tempfiles():
|
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dummy, out_redir_name = tempfile.mkstemp(prefix="ansible")
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dummy, err_redir_name = tempfile.mkstemp(prefix="ansible")
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return (out_redir_name, err_redir_name)
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def cleanup_redirection_tempfiles(out_name, err_name):
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for i in [out_name, err_name]:
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os.remove(i)
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def get_redirected_output(path_name):
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output = []
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with open(path_name, 'r') as fd:
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for line in fd:
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# strip terminal format/color chars
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new_line = re.sub(r'\x1b\[.+m', '', line)
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output.append(new_line)
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os.remove(path_name)
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return output
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|
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def attempt_extract_errors(exc_str, stdout, stderr):
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errors = [l.strip() for l in stderr if l.strip().startswith('ERROR:')]
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errors.extend([l.strip() for l in stdout if l.strip().startswith('ERROR:')])
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|
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warnings = [l.strip() for l in stderr if l.strip().startswith('WARNING:')]
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warnings.extend([l.strip() for l in stdout if l.strip().startswith('WARNING:')])
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|
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# assume either the exception body (if present) or the last warning was the 'most'
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# fatal.
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|
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if exc_str.strip():
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msg = exc_str.strip()
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elif errors:
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msg = errors[-1].encode('utf-8')
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else:
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msg = 'unknown cause'
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return {
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'warnings': [w.encode('utf-8') for w in warnings],
|
|
'errors': [e.encode('utf-8') 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)
|
|
|
|
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.files:
|
|
self.options[u'--file'] = self.files
|
|
|
|
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 != '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)
|
|
self.project.up(
|
|
service_names=service_names,
|
|
start_deps=start_deps,
|
|
strategy=converge,
|
|
do_build=do_build,
|
|
detached=detached,
|
|
remove_orphans=self.remove_orphans,
|
|
timeout=self.timeout,
|
|
start=not self.stopped
|
|
)
|
|
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 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',),
|
|
files=dict(type='list', elements='path'),
|
|
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', default=DEFAULT_TIMEOUT)
|
|
)
|
|
|
|
mutually_exclusive = [('definition', 'project_src'), ('definition', 'files')]
|
|
|
|
client = AnsibleDockerClient(
|
|
argument_spec=argument_spec,
|
|
mutually_exclusive=mutually_exclusive,
|
|
supports_check_mode=True,
|
|
min_docker_api_version='1.20',
|
|
)
|
|
|
|
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-py tried to talk to the docker daemon: {0}'
|
|
.format(to_native(e)),
|
|
exception=traceback.format_exc()
|
|
)
|
|
|
|
|
|
if __name__ == '__main__':
|
|
main()
|