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path: root/roles/docker/tasks/systemcontainer_docker.yml
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---
# If docker_options are provided we should fail. We should not install docker and ignore
# the users configuration. NOTE: docker_options == inventory:openshift_docker_options
- name: Fail quickly if openshift_docker_options are set
  assert:
    that:
      - docker_options is defined
      - docker_options != ""
    msg: |
      Docker via System Container does not allow for the use of the openshift_docker_options
      variable. If you want to use openshift_docker_options you will need to use the
      traditional docker package install. Otherwise, comment out openshift_docker_options
      in your inventory file.

# Used to pull and install the system container
- name: Ensure atomic is installed
  package:
    name: atomic
    state: present
  when: not openshift.common.is_atomic | bool

# At the time of writing the atomic command requires runc for it's own use. This
# task is here in the even that the atomic package ever removes the dependency.
- name: Ensure runc is installed
  package:
    name: runc
    state: present
  when: not openshift.common.is_atomic | bool

# If we are on atomic, set http_proxy and https_proxy in /etc/atomic.conf
- block:

    - name: Add http_proxy to /etc/atomic.conf
      lineinfile:
        path: /etc/atomic.conf
        line: "http_proxy={{ openshift.common.http_proxy | default('') }}"
      when:
        - openshift.common.http_proxy is defined
        - openshift.common.http_proxy != ''

    - name: Add https_proxy to /etc/atomic.conf
      lineinfile:
        path: /etc/atomic.conf
        line: "https_proxy={{ openshift.common.https_proxy | default('') }}"
      when:
        - openshift.common.https_proxy is defined
        - openshift.common.https_proxy != ''

  when: openshift.common.is_atomic | bool


- block:

    - name: Set to default prepend
      set_fact:
        l_docker_image_prepend: "gscrivano/"

    - name: Use Red Hat Registry for image when distribution is Red Hat
      set_fact:
        l_docker_image_prepend: "registry.access.redhat.com/openshift3/"
      when: ansible_distribution == 'RedHat'

    - name: Use Fedora Registry for image when distribution is Fedora
      set_fact:
        l_docker_image_prepend: "registry.fedoraproject.org/"
      when: ansible_distribution == 'Fedora'

    # For https://github.com/openshift/openshift-ansible/pull/4049#discussion_r114478504
    - name: Use a testing registry if requested
      set_fact:
        l_docker_image_prepend: "{{ openshift.docker.systemcontainer_image_registry_override }}/"
      when:
        - openshift.docker.systemcontainer_image_registry_override is defined
        - openshift.docker.systemcontainer_image_registry_override != ""

    - name: Set the full image name
      set_fact:
        l_docker_image: "{{ l_docker_image_prepend }}container-engine-docker:latest"

- name: Pre-pull Container Enginer System Container image
  command: "atomic pull --storage ostree {{ l_docker_image }}"
  changed_when: false

# Make sure docker is disabled Errors are ignored as docker may not
# be installed.
- name: Disable Docker
  systemd:
    name: docker
    enabled: no
    state: stopped
    daemon_reload: yes
  ignore_errors: True

- name: Ensure docker.service.d directory exists
  file:
    path: "{{ docker_systemd_dir }}"
    state: directory

- name: Ensure /etc/docker directory exists
  file:
    path: "{{ docker_conf_dir }}"
    state: directory

- name: Install Container Enginer System Container
  oc_atomic_container:
    name: container-engine-docker
    image: "container-engine-docker"
    state: latest
    values:
      - "system-package no"

- name: Configure Container Engine Service File
  template:
    dest: "{{ docker_systemd_dir }}/custom.conf"
    src: systemcontainercustom.conf.j2

# Configure container-engine using the daemon.json file
- name: Configure Container Engine
  template:
    dest: "{{ docker_conf }}/daemon.json"
    src: daemon.json

# Enable and start the container-engine service
- name: Start the Container Engine service
  systemd:
    name: "{{ openshift.docker.service_name }}"
    enabled: yes
    state: started
    daemon_reload: yes
  register: start_result

- set_fact:
    docker_service_status_changed: start_result | changed

- meta: flush_handlers