---
- name: "Install docker"
  hosts: target
  tasks:
    - name: "Install kernel extras"
      apt:
        pkg: "{{ item }}"
        state: present
      with_items:
        - "linux-image-extra-{{ ansible_kernel }}"
        - linux-image-extra-virtual
        - apt-transport-https
        - ca-certificates
        - software-properties-common
      when: ansible_distribution == "Ubuntu"

    - name: "Install docker apt key"
      shell: curl -fsSL https://download.docker.com/linux/ubuntu/gpg | apt-key add -
      when: ansible_distribution == "Ubuntu"

    - name: "Configure docker.list"
      copy:
        src: "../files/{{ item }}"
        dest: "/etc/apt/sources.list.d/{{ item }}"
        mode: 0644
        owner: root
        group: root
      with_items:
        - docker.list
      when: ansible_distribution == "Ubuntu"

    - name: "Update apt"
      apt:
        update_cache: yes
      when: ansible_distribution == "Ubuntu"

    - name: "Install docker packages"
      apt:
        pkg: "{{ item }}"
        state: present
      with_items:
        - docker-ce
      when: ansible_distribution == "Ubuntu"

    - name: "Install required packages"
      yum:
        name: "{{ item }}"
        state: present
      with_items:
        - yum-utils
        - device-mapper-persistent-data
        - lvm2
      when: ansible_distribution == "RedHat" or ansible_distribution == "CentOS"

    - name: "Add docker repository"
      shell: yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
      when: ansible_distribution == "RedHat" or ansible_distribution == "CentOS"

    - name: "Update yum cache"
      yum:
        update_cache: yes
      when: ansible_distribution == "RedHat" or ansible_distribution == "CentOS"

    - name: "Install required packages"
      yum:
        name: "{{ item }}"
        state: present
      with_items:
        - docker-ce
      when: ansible_distribution == "RedHat" or ansible_distribution == "CentOS"

    - name: "Install docker"
      portage:
        package: "{{ item }}"
        update: yes
        changed_use: yes
      with_items:
        - app-emulation/docker
      when: ansible_distribution == "Gentoo"

    - name: "Enable docker"
      service:
        name: "{{ item.name }}"
        enabled: yes
        state: started
        runlevel: "{{ item.runlevel }}"
      with_items:
        - { name: docker, runlevel: default }