- name: Gather latest checkmk version
  hosts: all

  tasks:
    # cannot be done with git module. It has no method to query the tags of a repo
    - name: Get latest checkmk version # noqa: run-once[task] command-instead-of-module
      register: checkmk_version
      delegate_to: localhost
      changed_when: false
      ansible.builtin.shell:
        executable: /bin/bash
        cmd: |
          set -o pipefail
          git -c 'versionsort.suffix=-' \
            ls-remote --tags --sort='v:refname' \
            https://github.com/Checkmk/checkmk.git |\
            grep -v '\-rc.' | tail --lines=1 |\
            cut --delimiter='/' --fields=3 | tr -d "v^{}"

    - name: Output checkmk version # noqa: run-once[task]
      run_once: true
      ansible.builtin.debug:
        var: checkmk_version.stdout

    - name: Set checkmk version fact # noqa: run-once[task]
      run_once: true
      ansible.builtin.set_fact:
        checkmk_version: "{{ checkmk_version.stdout }}"

- name: Update checkmk on monitoring hosts
  hosts: sites
  become: true

  tasks:
    - name: Snapshot VM before update
      become: false
      delegate_to: localhost
      community.proxmox.proxmox_snap:
        api_host: "{{ proxmox_api_host }}"
        api_user: "{{ proxmox_api_user }}"
        api_token_id: "{{ proxmox_api_token_id }}"
        api_token_secret: "{{ proxmox_api_token_secret }}"
        validate_certs: false
        hostname: "{{ inventory_hostname_short }}"
        snapname: "checkmk_{{ checkmk_version | replace('.', '_') | replace('-', '_') }}"
        description: "Pre-update snapshot before checkmk {{ checkmk_version }}"
        timeout: 120
        state: present

    - name: Install new checkmk version
      vars:
        filename: "check-mk-raw-{{ checkmk_version }}_0.{{ ansible_facts.lsb.codename }}_amd64.deb"
      ansible.builtin.apt:
        deb: "https://download.checkmk.com/checkmk/{{ checkmk_version }}/{{ filename }}"
      when: ansible_facts.lsb.id == 'Ubuntu'

    - name: Stop omd sites
      register: stop_cmd
      changed_when: stop_cmd.rc == 0
      loop: "{{ checkmk_sites }}"
      ansible.builtin.command: "omd stop {{ item }}"

    - name: Create backup of site (/tmp/backup-{{ item }}.tar.gz)
      changed_when: true
      loop: "{{ checkmk_sites }}"
      ansible.builtin.command: "omd backup {{ item }} /tmp/backup-{{ item }}.tar.gz"

    - name: Update omd site
      changed_when: true
      loop: "{{ checkmk_sites }}"
      ansible.builtin.command: "omd -f update --conflict=keepold {{ item }}"

    - name: Start omd sites
      register: start_cmd
      changed_when: start_cmd.rc == 0
      loop: "{{ checkmk_sites }}"
      ansible.builtin.command: "omd start {{ item }}"

- name: Update checkmk agents on monitored hosts
  hosts: agents
  become: true

  tasks:
    - name: Install new checkmk agent
      ansible.builtin.apt:
        deb: "https://checkmk.stuyckv.com/local/check_mk/agents/check-mk-agent_{{ checkmk_version }}-1_all.deb"
      when: ansible_facts.lsb.id == 'Ubuntu'