docker-compose/tasks/main.yml

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---
# Install docker-compose
- name: Ensure pip to be available
apt:
name: python-pip
cache_valid_time: 86400
- name: Install or update docker-compose
pip:
name: docker-compose
executable: pip
state: latest
register: docker_compose
# Configure docker-compose
- name: Create configuration directory
file:
dest: /etc/docker-compose
state: directory
mode: 0700
- name: Write docker-compose.yml
template:
dest: /etc/docker-compose/docker-compose.yml
src: templates/docker-compose.yml
mode: 0600
register: compose_file
- name: Validate configuration
command: docker-compose config -q
args:
chdir: /etc/docker-compose
when: compose_file.changed and docker_compose_validate
# Install and start services
- name: '[Migration] Check multi-user.target dependency of service'
command: grep -Fxq 'WantedBy=multi-user.target' /etc/systemd/system/docker-compose.service
register: docker_compose_olddep
check_mode: no
ignore_errors: yes
changed_when: no
- name: '[Migration] Disable service still WantedBy=multi-user.target'
systemd:
name: docker-compose.service
enabled: no
when: docker_compose_olddep.rc == 0
- name: Install docker-compose.service
copy:
dest: /etc/systemd/system/docker-compose.service
content: |
[Unit]
Description=Docker Compose container starter
After=docker.service network-online.target
Requires=docker.service network-online.target
[Service]
WorkingDirectory=/etc/docker-compose
Type=oneshot
RemainAfterExit=yes
ExecStartPre=/usr/local/bin/docker-compose pull --quiet --ignore-pull-failures
ExecStart=/usr/local/bin/docker-compose up -d --remove-orphans
ExecStop=/usr/local/bin/docker-compose {{ docker_compose_stop_action }}
ExecReload=/usr/local/bin/docker-compose pull --quiet --ignore-pull-failures
ExecReload=/usr/local/bin/docker-compose up -d --remove-orphans
[Install]
WantedBy=docker.service
register: docker_compose_service
- name: Enable docker-compose service
systemd:
name: docker-compose.service
daemon_reload: yes
enabled: yes
- name: Restart service if service configuration changed
systemd:
name: docker-compose.service
daemon_reload: yes
state: restarted
when: docker_compose_service.changed and packer_build_name is not defined
- name: Reload and apply configuration
systemd:
name: docker-compose.service
state: reloaded
when: (docker_compose.changed or compose_file.changed) and packer_build_name is not defined
- name: Install docker-compose-reload.service
copy:
dest: /etc/systemd/system/docker-compose-reload.service
content: |
[Unit]
Description=Refresh images and update containers
[Service]
Type=oneshot
ExecStart=/bin/systemctl reload docker-compose.service
- name: Install docker-compose-reload.timer
copy:
dest: /etc/systemd/system/docker-compose-reload.timer
content: |
[Unit]
Description=Refresh images and update containers
Requires=docker-compose.service
After=docker-compose.service
[Timer]
OnCalendar=*:0/{{ docker_compose_reload_minutes }}
[Install]
WantedBy=timers.target
register: docker_compose_reload_timer
- name: Enable docker-compose-reload.timer
systemd:
name: docker-compose-reload.timer
daemon_reload: yes
enabled: yes
- name: Restart docker-compose-reload.timer if it changed
systemd:
name: docker-compose-reload.timer
daemon_reload: yes
state: restarted
when: docker_compose_reload_timer.changed and packer_build_name is not defined