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Add docker-clean job
Signed-off-by: Knut Ahlers <knut@ahlers.me>
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2 changed files with 80 additions and 0 deletions
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@ -5,6 +5,8 @@ docker_compose_stop_action: down
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docker_compose_validate: true
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docker_compose_reload_max_delay: 0 # Have no delay, should be less than docker_compose_reload_minutes
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docker_compose_add_cleanjob: false
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docker_compose_config:
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version: "3"
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services:
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@ -123,3 +123,81 @@
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daemon_reload: yes
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state: restarted
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when: docker_compose_reload_timer.changed and packer_build_name is not defined
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- name: Install docker-clean script
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copy:
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content: |
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#!/bin/bash
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set -euo pipefail
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function step() { echo $@; }
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step "Removing containers created / exited >= ~1h ago..."
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CONTAINERS=$(docker ps -a | gawk '/(hours?|days?|weeks?|months?) ago\s+(Created|Exited)/{ print $1 }' | xargs)
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[ -n "${CONTAINERS}" ] && docker rm ${CONTAINERS}
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step "Removing unused and dangling images..."
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docker image prune -a -f
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dest: /usr/local/bin/docker-clean
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mode: '0755'
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owner: 'root'
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group: 'root'
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when: docker_compose_add_cleanjob
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- name: Install docker-clean.service
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copy:
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dest: /etc/systemd/system/docker-clean.service
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content: |
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[Unit]
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Description=Clean out old containers and unused images
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[Service]
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Type=oneshot
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ExecStart=/usr/local/bin/docker-clean
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when: docker_compose_add_cleanjob
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- name: Install docker-clean.timer
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copy:
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dest: /etc/systemd/system/docker-clean.timer
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content: |
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[Unit]
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Description=Clean out old containers and unused images
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[Timer]
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OnCalendar=*:0
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[Install]
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WantedBy=timers.target
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register: docker_compose_clean_timer
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when: docker_compose_add_cleanjob
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- name: Enable docker-clean timer
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systemd:
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name: docker-clean.timer
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daemon_reload: yes
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enabled: yes
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when: docker_compose_add_cleanjob
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- name: Restart docker-clean.timer if it changed
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systemd:
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name: docker-clean.timer
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daemon_reload: yes
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state: restarted
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when: docker_compose_clean_timer is defined and docker_compose_clean_timer.changed and packer_build_name is not defined and docker_compose_add_cleanjob
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- name: Deactivate docker-clean timer
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systemd:
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name: docker-clean.timer
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daemon_reload: yes
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enabled: no
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when: not docker_compose_add_cleanjob
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- name: Uninstall docker-clean components
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file:
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dest: '{{ item }}'
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state: absent
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with_items:
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- /usr/local/bin/docker-clean
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- /etc/systemd/system/docker-clean.service
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- /etc/systemd/system/docker-clean.timer
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when: not docker_compose_add_cleanjob
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