homelab/roles/docker/tasks/main.yml

# Copyright (C) 2019  Kris Lamoureux
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, version 3 of the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <https://www.gnu.org/licenses/>.

- name: Remove old versions of Docker
  apt:
    name: ['docker', 'docker-engine', 'docker.io', 'containerd', 'runc']
    state: absent
    update_cache: true

- name: Install HTTPS capability for apt
  apt:
    name: ['apt-transport-https', 'ca-certificates',
           'curl', 'gnupg2', 'software-properties-common']
    state: present

- name: Install Docker's signing key
  apt_key:
    url: https://download.docker.com/linux/debian/gpg
    id: 9DC858229FC7DD38854AE2D88D81803C0EBFCD88
    state: present

- name: Install Docker's stable repository
  template:
    src: docker-ce.list
    dest: /etc/apt/sources.list.d/docker-ce.list

- name: Install Docker CE
  apt:
    name: ['docker-ce', 'docker-ce-cli', 'containerd.io']
    state: present
    update_cache: true

- name: Add users to docker group
  user:
    name: "{{ item }}"
    groups: docker
    append: true
  loop: "{{ docker_users }}"
  when: docker_users is defined

- name: Install docker-compose
  script: install-compose.sh
  args:
    creates: /usr/local/bin/docker-compose

- name: Start Docker and enable on boot
  service:
    name: docker
    state: started
    enabled: true