45 lines
1.6 KiB
YAML
45 lines
1.6 KiB
YAML
---
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- name: Verify and configure Docker storage driver
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hosts: docker
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tags:
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- docker
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- docker-devicemapper
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tasks:
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- name: Check for existing Docker configuration using devicemapper
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block:
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- name: Query Docker daemon for storage driver
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docker_host_info:
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failed_when: false
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register: docker
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- block:
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- name: Check for a Docker configuration file
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become: True
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stat:
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path: /etc/docker/daemon.json
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register: docker_config_file
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- name: Check whether devicemapper is used in configuration file
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lineinfile:
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path: /etc/docker/daemon.json
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regexp: 'storage-driver.*devicemapper'
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state: absent
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become: True
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changed_when: False
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# `check_mode: True` ensures that we don't modify daemon.json
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check_mode: True
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register: devicemapper_docker
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when: docker_config_file.stat.exists
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when: not (docker.can_talk_to_docker | default(true))
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- name: Fail if devicemapper is in use while another storage driver was requested
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fail:
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msg: "Docker storage driver {{ docker_storage_driver }} was requested, but devicemapper is in use"
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when: (docker.can_talk_to_docker | default(true) and docker.host_info.Driver == 'devicemapper') or (devicemapper_docker.found | default(0) == 1)
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when: docker_storage_driver != 'devicemapper'
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- name: Ensure Docker devicemapper storage is configured
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include_role:
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name: docker-devicemapper
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when: docker_storage_driver == 'devicemapper'
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