ansible_fencl/nextcloud/update_uptime_kuma.yml

- name: Update Uptime Kuma on VM via Proxmox
  hosts: proxmox
  gather_facts: false
  become: true
  become_user: root
  become_method: sudo

  vars:
    # --- Connection to VM (provided by Semaphore env vars) ---
    vm_ip:   "{{ lookup('env', 'VM_IP') }}"
    vm_user: "{{ lookup('env', 'VM_USER') }}"
    vm_pass: "{{ lookup('env', 'VM_PASS') }}"
    use_sudo: false

    # --- Uptime Kuma specifics ---
    kuma_project: "uptime-kuma"                     # docker compose project name
    kuma_compose_file: "/data/compose/kuma/uptime-kuma.yml"  # adjust to your path
    kuma_service: "uptime-kuma"                     # service name from compose
    kuma_port: 3001

    # Optional external URL for controller-side readiness check.
    # If empty/undefined, controller check is skipped and we only probe from the VM.
    kuma_url: "{{ lookup('env', 'KUMA_URL') | default('', true) }}"

    # Docker command prefix (keeps behavior consistent and quiet)
    docker_prefix: "unalias docker 2>/dev/null || true; DOCKER_CLI_HINTS=0; command docker"

    # Commands to run on the target VM
    kuma_commands:
      - "{{ docker_prefix }} pull -q louislam/uptime-kuma:latest >/dev/null"
      - "{{ docker_prefix }} compose -p {{ kuma_project }} -f {{ kuma_compose_file }} pull {{ kuma_service }} >/dev/null"
      - "{{ docker_prefix }} compose -p {{ kuma_project }} -f {{ kuma_compose_file }} up -d --no-deps --force-recreate {{ kuma_service }} >/dev/null"

  tasks:
    - name: Ensure sshpass is installed (for password-based SSH)  # English comments
      ansible.builtin.apt:
        name: sshpass
        state: present
        update_cache: yes

    - name: Run Uptime Kuma update commands on VM (via SSH)  # Avoid leaking password in logs
      ansible.builtin.command:
        argv:
          - sshpass
          - -p
          - "{{ vm_pass }}"
          - ssh
          - -o
          - StrictHostKeyChecking=no
          - -o
          - ConnectTimeout=15
          - "{{ vm_user }}@{{ vm_ip }}"
          - bash
          - -lc
          - "{{ ('sudo ' if use_sudo else '') + item }}"
      loop: "{{ kuma_commands }}"
      register: kuma_cmds
      changed_when: false
      no_log: true  # <- hides password and raw argv from logs

    - name: Show summarized outputs for each command (sanitized)
      ansible.builtin.debug:
        msg: |
          CMD: {{ item_short }}
          RC:  {{ item.rc }}
          STDOUT:
          {{ (item.stdout | default('')).strip() }}
          STDERR:
          {{ (item.stderr | default('')).strip() }}
      loop: "{{ kuma_cmds.results }}"
      vars:
        # Print a redacted/short form of the command so we don't leak the password
        item_short: >-
          {{
            (item.cmd | map('quote') | list)[-1]            # last element is the remote "bash -lc" payload
          }}
      when: kuma_cmds is defined

    - name: Fail play if any Uptime Kuma command failed
      ansible.builtin.assert:
        that: "item.rc == 0"
        fail_msg: "Uptime Kuma update failed on VM: {{ (item.cmd | last) }} (rc={{ item.rc }})"
        success_msg: "All Uptime Kuma update commands succeeded."
      loop: "{{ kuma_cmds.results }}"

    # -------------------------
    # Readiness checks
    # -------------------------

    - name: Kuma | Wait for web to respond (controller-side, if URL provided)
      ansible.builtin.uri:
        url: "{{ (kuma_url | regex_replace('/$','')) + '/' }}"
        method: GET
        return_content: true
        # Validate TLS only when using https://
        validate_certs: "{{ (kuma_url | default('')) is match('^https://') }}"
        status_code: 200
      register: kuma_controller
      delegate_to: localhost
      run_once: true
      when: kuma_url is defined and (kuma_url | length) > 0
      retries: 20
      delay: 2
      until: kuma_controller.status == 200 and ('Uptime Kuma' in (kuma_controller.content | default('')))
      failed_when: false
      changed_when: false

    - name: Kuma | VM-side probe (fallback to localhost:port, no auth)
      ansible.builtin.command:
        argv:
          - sshpass
          - -p
          - "{{ vm_pass }}"
          - ssh
          - -o
          - StrictHostKeyChecking=no
          - -o
          - ConnectTimeout=15
          - "{{ vm_user }}@{{ vm_ip }}"
          - bash
          - -lc
          - |
            python3 - <<'PY'
            # Simple readiness probe: fetch "/" and look for "Uptime Kuma" in HTML
            import sys, urllib.request
            try:
                with urllib.request.urlopen("http://127.0.0.1:{{ kuma_port }}/", timeout=15) as r:
                    body = r.read(8192).decode(errors='ignore')
                    if 'Uptime Kuma' in body:
                        print("OK")
            except Exception:
                pass
            PY
      register: kuma_vm
      changed_when: false
      failed_when: false
      # Run only if controller check missing or didn't succeed
      when: (kuma_url is not defined) or (kuma_url | length == 0) or (kuma_controller.status | default(0)) != 200

    - name: Kuma | Decide readiness source
      ansible.builtin.set_fact:
        kuma_ready: >-
          {{
            (
              (kuma_controller is defined)
              and (kuma_controller.status|default(0))==200
              and ('Uptime Kuma' in (kuma_controller.content|default('')))
            ) or
            (
              (kuma_vm.stdout | default('')) | trim == 'OK'
            )
          }}
        kuma_ready_source: >-
          {{
            (
              (kuma_controller is defined)
              and (kuma_controller.status|default(0))==200
              and ('Uptime Kuma' in (kuma_controller.content|default('')))
            )
            | ternary('controller', 'vm')
          }}

    - name: Kuma | Print concise summary
      ansible.builtin.debug:
        msg: >-
          Uptime Kuma is {{ 'READY' if kuma_ready else 'NOT READY' }}
          (checked via {{ kuma_ready_source }}).
          URL={{ (kuma_url if (kuma_url|default('')|length>0) else 'http://'+vm_ip+':'+(kuma_port|string)) }}

    - name: Kuma | Not ready after retries
      ansible.builtin.debug:
        msg: "Kuma web není dostupná ani po pokusech."
      when: not kuma_ready