base-settings.yaml

---

- name: Setup Base Image
  hosts: all
  become: yes
  tasks:
    - name: Set timezone to Europe/Vienna
      community.general.timezone:
        name: Europe/Vienna
        
    - name: Upgrade system packages
      apt:
        update_cache: yes
        upgrade: dist
    
    - name: Check if a reboot is needed 
      stat: 
        path: /var/run/reboot-required 
      register: reboot_required_file
    
    - name: Reboot the server due to updates
      reboot:
        msg: "Reboot initiated by Ansible due to kernel updates"
        connect_timeout: 5
        reboot_timeout: 300
        pre_reboot_delay: 0
        post_reboot_delay: 30
        test_command: uptime
      when: reboot_required_file.stat.exists

    - name: Install Chrony for time synchronization 
      apt:
        update_cache: yes
        name: chrony

    - name: Set default locale
      ansible.builtin.debconf:
        name: locales
        question: locales/default_environment_locale
        value: de_AT.UTF-8
        vtype: select

    - name: Set locales to be generated
      ansible.builtin.debconf:
        name: locales
        question: locales/locales_to_be_generated
        value: de_AT.UTF-8 UTF-8, en_US.UTF-8 UTF-8
        vtype: select

    - name: Configure keyboard
      debconf:
        name: console-data
        question: console-data/keymap/full
        value: de-latin1-nodeadkeys
        vtype: select

    - name: Add user olimex to i2c group
      user:
        name: olimex
        append: true
        groups: i2c

    - name: Set static IP
      # Only execute this task when the variable target_static_ip has been found
      when: target_static_ip is defined        
      copy:
        dest: /etc/network/interfaces.d/eth0
        content: |
            allow-hotplug eth0

            iface eth0 inet static
                address {{ target_static_ip }}
                netmask 255.255.0.0
                broadcast 10.0.255.255
                gateway 10.0.0.1
                dns-nameservers 10.0.0.1
                dns-search fritz.box
      # If the file contents on the host have changed, execute the reboot handler after this play has finished
      notify: reboot

  handlers:
    - name: dpkg-reconfigure keyboard-configuration
      command: /usr/sbin/dpkg-reconfigure -f noninteractive keyboard-configuration

    # The reboot handler is a bit tricky in our case.
    # As it is triggered when we change the IP, Ansible will have a hard time reconnecting to the host once it comes back up.
    # This would normally lead to Ansible reporting a failure.
    # To work around this, we ddfine this command as asynchronous, and tell Ansible via poll:0 that it is a fire-and-forget task.
    # The drawback is that Ansible will not be able to verify wehther the host came back up successfully.
    - name: reboot
      shell: "sleep 1; reboot &"
      args:
        executable: /bin/bash
      async: 100
      poll: 0