okd/roles/docker/tasks/main.yml

---
# Going forward we require Docker 1.10 or greater. If the user has a lesser version installed they must run a separate upgrade process.
- name: Get current installed Docker version
  command: "{{ repoquery_cmd }} --installed --qf '%{version}' docker"
  when:  not openshift.common.is_atomic | bool
  register: curr_docker_version
  changed_when: false

# TODO: The use of upgrading var will be removed in the coming upgrade refactor. This is a temporary
# fix to wory around the fact that right now, this role is called during upgrade, before we're
# ready to upgrade Docker.
- name: Fail if Docker upgrade is required
  fail:
    msg: "Docker {{ curr_docker_version.stdout }} must be upgraded to Docker 1.10 or greater"
  when: not upgrading | bool and not curr_docker_version | skipped and curr_docker_version.stdout | default('0.0', True) | version_compare('1.10', '<')

- name: Get latest available version of Docker
  command: >
    {{ repoquery_cmd }} --qf '%{version}' "docker"
  register: avail_docker_version
  failed_when: false
  changed_when: false
  when: not curr_docker_version.stdout | default('0.0', True) | version_compare('1.10', '>=') and not openshift.common.is_atomic | bool

- name: Verify Docker >= 1.10 is available
  fail:
    msg: "Docker {{ avail_docker_version.stdout }} is available, but 1.10 or greater is required"
  when: not avail_docker_version | skipped and avail_docker_version.stdout | default('0.0', True) | version_compare('1.10', '<')

- stat: path=/etc/sysconfig/docker-storage
  register: docker_storage_check

# Make sure Docker is installed, but does not update a running version.
# Docker upgrades are handled by a separate playbook.
- name: Install Docker
  action: "{{ ansible_pkg_mgr }} name=docker state=present"
  when: not openshift.common.is_atomic | bool

- name: Start the Docker service
  service:
    name: docker
    enabled: yes
    state: started
  register: start_result

- set_fact:
    docker_service_status_changed: start_result | changed

- include: udev_workaround.yml
  when: docker_udev_workaround | default(False) | bool

- stat: path=/etc/sysconfig/docker
  register: docker_check

- name: Set registry params
  lineinfile:
    dest: /etc/sysconfig/docker
    regexp: '^{{ item.reg_conf_var }}=.*$'
    line: "{{ item.reg_conf_var }}='{{ item.reg_fact_val | oo_prepend_strings_in_list(item.reg_flag ~ ' ') | join(' ') }}'"
  when: item.reg_fact_val != '' and  docker_check.stat.isreg
  with_items:
  - reg_conf_var: ADD_REGISTRY
    reg_fact_val: "{{ docker_additional_registries | default(None, true)}}"
    reg_flag: --add-registry
  - reg_conf_var: BLOCK_REGISTRY
    reg_fact_val: "{{ docker_blocked_registries| default(None, true) }}"
    reg_flag: --block-registry
  - reg_conf_var: INSECURE_REGISTRY
    reg_fact_val: "{{ docker_insecure_registries| default(None, true) }}"
    reg_flag: --insecure-registry
  notify:
  - restart docker

- name: Set Proxy Settings
  lineinfile:
    dest: /etc/sysconfig/docker
    regexp: '^{{ item.reg_conf_var }}=.*$'
    line: "{{ item.reg_conf_var }}='{{ item.reg_fact_val }}'"
    state: "{{ 'present' if item.reg_fact_val != '' else 'absent'}}"
  with_items:
    - reg_conf_var: HTTP_PROXY
      reg_fact_val: "{{ docker_http_proxy | default('') }}"
    - reg_conf_var: HTTPS_PROXY
      reg_fact_val: "{{ docker_https_proxy | default('') }}"
    - reg_conf_var: NO_PROXY
      reg_fact_val: "{{ docker_no_proxy | default('') | join(',') }}"
  notify:
    - restart docker
  when: "{{ 'http_proxy' in openshift.common or 'https_proxy' in openshift.common and docker_check.stat.isreg }}"

- name: Set various Docker options
  lineinfile:
    dest: /etc/sysconfig/docker
    regexp: '^OPTIONS=.*$'
    line: "OPTIONS='\
      {% if ansible_selinux and ansible_selinux.status == '''enabled''' %} --selinux-enabled{% endif %}\
      {% if docker_log_driver is defined  %} --log-driver {{ docker_log_driver }}{% endif %}\
      {% if docker_log_options is defined %} {{ docker_log_options |  oo_split() | oo_prepend_strings_in_list('--log-opt ') | join(' ')}}{% endif %}\
      {% if docker_options is defined %} {{ docker_options }}{% endif %}\
      {% if docker_disable_push_dockerhub is defined %} --confirm-def-push={{ docker_disable_push_dockerhub | bool }}{% endif %}'"
  when: docker_check.stat.isreg
  notify:
    - restart docker

- meta: flush_handlers