--
- hosts: service
  remote_user: docker
  gather_facts: no
  vars:
    user: "docker"

  tasks:

     # ------------------------
     # apt update
     # -------------------------
    - name: apt update packages
      become: true
      apt:
        update_cache: 'yes'
        force_apt_get: 'yes'
        upgrade: 'dist'
        cache_valid_time: 3600
        install_recommends: true
        autoremove: true
        # ------------------------
     # apt install packages
     # -------------------------
    - name: apt install packages
      become: true
      apt:
        update_cache: 'yes'
        force_apt_get: 'yes'
        install_recommends: true
        autoremove: true
        name: "{{ packages }}"
      vars:
        packages:
         - build-essential
         - git
         - flex
         - bison
         - traceroute
         - curl
         - lynx
         - ruby
         - ruby-dev