nut.yml

---

- hosts: homelab

  vars:
    application: nut

    # variables are in group_vars. override as needed
    nut_host: localhost

    nut_mode: netserver

    nut_user_mode: "master"

    nut_max_retry: 3

    nut_ups_devices:
      cyberpower: |
        driver = usbhid-ups
        port = auto
        ignorelb
        pollinterval = 15
        override.battery.charge.low = 20
        override.battery.charge.warning = 40
        override.battery.runtime.low = 300
        override.ups.delay.start = 120
        override.ups.delay.shutdown = 120

    nut_ups_listen: |
      LISTEN 127.0.0.1 3493
      LISTEN {{ hostvars[inventory_hostname]['ansible_default_ipv4']['address'] }} 3493
      LISTEN ::1 3493

  handlers:
    - name: Restart
      ansible.builtin.service:
        name: "{{ item }}"
        state: restarted
        enabled: true
      loop: >-
        {{
          ['nut-monitor', 'nut-server'] +
          (nut_ups_devices | dict2items | map(attribute='key') | map('string') | map('regex_replace', '^', 'nut-driver@') | list)
        }}

  tasks:
    - name: Update apt cache
      ansible.builtin.apt:
        update_cache: true
        cache_valid_time: 600
      changed_when: false

    - name: Install
      ansible.builtin.apt:
        name: nut
        state: present
        update_cache: true
        cache_valid_time: 3600
      register: result
      until: result is success
      retries: 5
      delay: 5

    - name: Reload systemd
      ansible.builtin.systemd:
        daemon_reload: true

    - name: Install NUT configuration files.
      ansible.builtin.template:
        src: "{{ item }}"
        dest: "/etc/nut/{{ item | basename | regex_replace('\\.j2$', '') }}"
        owner: root
        group: nut
        mode: "0655"
      with_fileglob:
        - "{{ files_directory }}/*"
      notify: Restart

    - name: Grab public SSH key to add to NVR host
      ansible.builtin.slurp:
        src: /root/.ssh/id_ed25519.pub
      register: __homelab_public_key

- hosts: nvr

  handlers:
    - name: Restart nut
      ansible.builtin.service:
        name: nut-monitor
        state: restarted
        enabled: true

  tasks:
    - name: Set authorized keys
      ansible.posix.authorized_key:
        user: root
        state: present
        key: "{{ item }}"
        comment: homelab
      loop:
        - https://github.com/calvinbui.keys
        - "{{ hostvars['homelab.' + common_local_tld]['__homelab_public_key']['content'] | b64decode }}"

    - name: Update apt cache
      ansible.builtin.apt:
        update_cache: true
        cache_valid_time: 600
      changed_when: false

    - name: Install nut
      ansible.builtin.apt:
        name: nut-client
        state: present
      register: result
      until: result is success
      retries: 5
      delay: 5

    - name: Configure nut
      notify: Restart nut
      block:
        - name: Set nut mode
          ansible.builtin.lineinfile:
            path: "/etc/nut/{{ item.file }}.conf"
            regex: "{{ item.regex }}"
            line: "{{ item.line }}"
          loop:
            - file: nut
              regex: "^MODE="
              line: "MODE={{ nut_mode }}"

        - name: Configure nut
          ansible.builtin.blockinfile:
            path: "/etc/nut/{{ item.file }}.conf"
            marker: "# {mark} ANSIBLE MANAGED BLOCK {{ item.name }}"
            block: "{{ item.block }}"
          loop:
            - file: upsmon
              name: monitors
              block: "{{ nut_ups_monitors | string }}"