kubespray/roles/container-engine/docker/tasks/reset.yml

---

- name: Docker | Get package facts
  package_facts:
    manager: auto

- name: Docker | Find docker packages
  set_fact:
    docker_packages_list: "{{ ansible_facts.packages.keys() | select('search', '^docker+') }}"
    containerd_package: "{{ ansible_facts.packages.keys() | select('search', '^containerd+') }}"

- name: Docker | Stop all running container
  shell: "set -o pipefail && {{ docker_bin_dir }}/docker ps -q | xargs -r {{ docker_bin_dir }}/docker kill"
  args:
    executable: /bin/bash
  register: stop_all_containers
  retries: 5
  until: stop_all_containers.rc == 0
  changed_when: true
  delay: 5
  ignore_errors: true  # noqa ignore-errors
  when: docker_packages_list | length>0

- name: Reset | remove all containers
  shell: "set -o pipefail && {{ docker_bin_dir }}/docker ps -aq | xargs -r docker rm -fv"
  args:
    executable: /bin/bash
  register: remove_all_containers
  retries: 4
  until: remove_all_containers.rc == 0
  delay: 5
  when: docker_packages_list | length>0

- name: Docker | Stop docker service
  service:
    name: "{{ item }}"
    enabled: false
    state: stopped
  loop:
    - docker
    - docker.socket
    - containerd
  when: docker_packages_list | length>0

- name: Docker | Remove dpkg hold
  dpkg_selections:
    name: "{{ item }}"
    selection: install
  when: ansible_pkg_mgr == 'apt'
  changed_when: false
  with_items:
    - "{{ docker_packages_list }}"
    - "{{ containerd_package }}"

- name: Docker | Remove docker package
  package:
    name: "{{ item }}"
    state: absent
  changed_when: false
  with_items:
    - "{{ docker_packages_list }}"
    - "{{ containerd_package }}"
  when:
    - not ansible_os_family in ["Flatcar", "Flatcar Container Linux by Kinvolk"]
    - not is_ostree
    - docker_packages_list | length > 0

- name: Docker | ensure docker-ce repository is removed
  apt_repository:
    repo: "{{ item }}"
    state: absent
  with_items: "{{ docker_repo_info.repos }}"
  when: ansible_pkg_mgr == 'apt'

- name: Docker | Remove docker repository on Fedora
  file:
    name: "{{ yum_repo_dir }}/docker.repo"
    state: absent
  when: ansible_distribution == "Fedora" and not is_ostree

- name: Docker | Remove docker repository on RedHat/CentOS/Oracle/AlmaLinux Linux
  file:
    name: "{{ yum_repo_dir }}/docker-ce.repo"
    state: absent
  when:
    - ansible_os_family == "RedHat"
    - ansible_distribution != "Fedora"
    - not is_ostree

- name: Docker | Remove docker configuration files
  file:
    name: "{{ item }}"
    state: absent
  loop:
    - /etc/systemd/system/docker.service.d/
    - /etc/systemd/system/docker.socket
    - /etc/systemd/system/docker.service
    - /etc/systemd/system/containerd.service
    - /etc/systemd/system/containerd.service.d
    - /var/lib/docker
    - /etc/docker
  ignore_errors: true  # noqa ignore-errors

- name: Docker | systemctl daemon-reload  # noqa no-handler
  systemd:
    daemon_reload: true