ceph-ansible/roles/ceph-container-engine/tasks/pre_requisites/prerequisites.yml

---
- name: include specific variables
  include_vars: "{{ item }}"
  with_first_found:
    - "{{ ansible_facts['distribution'] }}-{{ ansible_facts['distribution_major_version'] }}.yml"
    - "{{ ansible_facts['os_family'] }}.yml"
  when: container_package_name is undefined and container_service_name is undefined

- name: debian based systems tasks
  include_tasks: debian_prerequisites.yml
  when:
    - ansible_facts['os_family'] == 'Debian'
  tags: with_pkg

- name: install container packages
  package:
    name: '{{ container_package_name }}'
    update_cache: true
  register: result
  until: result is succeeded
  tags: with_pkg

- name: install lvm2 package
  package:
    name: lvm2
  register: result
  until: result is succeeded
  tags: with_pkg
  when: inventory_hostname in groups.get(osd_group_name, [])

- name: extra configuration for docker
  when: container_service_name == 'docker'
  block:
    - name: create the systemd docker override directory
      file:
        path: /etc/systemd/system/docker.service.d
        state: directory
      when: ceph_docker_http_proxy is defined or ceph_docker_https_proxy is defined

    - name: create the systemd docker override file
      template:
        src: docker-proxy.conf.j2
        dest: /etc/systemd/system/docker.service.d/proxy.conf
        mode: 0600
        owner: root
        group: root
      register: proxy_created
      when: ceph_docker_http_proxy is defined or ceph_docker_https_proxy is defined

    - name: remove docker proxy configuration
      file:
        path: /etc/systemd/system/docker.service.d/proxy.conf
        state: absent
      register: proxy_removed
      when:
        - ceph_docker_http_proxy is not defined
        - ceph_docker_https_proxy is not defined

    # using xxx.changed here instead of an ansible handler because we need to
    # have an immediate effect and not wait the end of the play.
    # using flush_handlers via the meta action plugin isn't enough too because
    # it flushes all handlers and not only the one notified in this role.
    - name: restart docker
      systemd:
        name: "{{ container_service_name }}"
        state: restarted
        daemon_reload: yes
      when: proxy_created.changed | bool or proxy_removed.changed | bool

    - name: start container service
      service:
        name: '{{ container_service_name }}'
        state: started
        enabled: yes
      tags:
        with_pkg