c4a1dcd3c7
Rename True/False to true/false Fix permissions values Change-Id: I75be15fd24aeedf54bb22b9744bc0ee498a62645
73 lines
2.2 KiB
YAML
73 lines
2.2 KiB
YAML
---
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# Upgrading docker engine may cause containers to stop. Take a snapshot of the
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# running containers prior to a potential upgrade of Docker.
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- name: Check which containers are running
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command: docker ps -f 'status=running' -q
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become: true
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# If Docker is not installed this command may exit non-zero.
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failed_when: false
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changed_when: false
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register: running_containers
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# APT starts Docker engine right after installation, which creates
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# iptables rules before we disable iptables in Docker config
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- block:
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- name: Check if docker systemd unit exists
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stat:
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path: /etc/systemd/system/docker.service
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register: docker_unit_file
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- name: Mask the docker systemd unit on Debian/Ubuntu
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file:
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src: /dev/null
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dest: /etc/systemd/system/docker.service
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owner: root
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group: root
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state: link
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become: true
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when: not docker_unit_file.stat.exists
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when: ansible_facts.os_family == 'Debian'
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- name: Install packages
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package:
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name: "{{ docker_packages | select | list }}"
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cache_valid_time: "{{ apt_cache_valid_time if ansible_facts.os_family == 'Debian' else omit }}"
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update_cache: true
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state: present
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become: true
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register: docker_install_result
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# If any packages were updated, and any containers were running, wait for the
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# daemon to come up and start all previously running containers.
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- block:
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# At some point (at least on CentOS 7) Docker CE stopped starting
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# automatically after an upgrade from legacy docker . Start it manually.
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- name: Start docker
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systemd:
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name: docker
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state: started
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enabled: true
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masked: false
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become: true
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- name: Wait for Docker to start
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command: docker info
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become: true
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changed_when: false
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register: result
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until: result is success
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retries: 6
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delay: 10
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- name: Ensure containers are running after Docker upgrade
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# noqa no-changed-when
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command: "docker start {{ running_containers.stdout }}"
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become: true
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changed_when: true
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when:
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- docker_install_result is changed
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- running_containers.rc == 0
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- running_containers.stdout != ''
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