# update_broker_kafka-ui.yml

- name: Update Kafka broker3 and Redpanda Console 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

    # --- Debug mode (controlled via Semaphore variable) ---
    DEBUG: "{{ lookup('env', 'DEBUG') | default(0) | int }}"
    RETRIES: "{{ lookup('env', 'RETRIES') | default(25) | int }}"

    # --- Kafka / Redpanda Console specifics ---
    kafka_project: "kafka"
    # Adjusted to match your actual compose file location
    kafka_compose_file: "/data/compose/docker-compose.yml"

    kafka_services:
      - broker3
      - kafka-ui

    redpanda_console_port: 8084

    # Controller-side URL (default to direct VM IP/port or external URL)
    redpanda_console_url: "{{ lookup('env', 'REDPANDA_CONSOLE_URL') | default('http://192.168.69.254:8084/overview', true) }}"

    redpanda_retries: "{{ RETRIES }}"
    redpanda_delay: 2

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

    # Commands to run on the target VM (quiet outputs)
    # 1) Pull latest images for broker3 + kafka-ui
    # 2) Stop any running containers with these names (legacy or compose-managed)
    # 3) Remove any containers with these names to avoid name conflicts
    # 4) Recreate services via docker compose
    kafka_commands:
      - "{{ docker_prefix }} compose -p {{ kafka_project }} -f {{ kafka_compose_file }} pull {{ kafka_services | join(' ') }} >/dev/null"
      - "{{ docker_prefix }} stop {{ kafka_services | join(' ') }} >/dev/null 2>&1 || true"
      - "{{ docker_prefix }} rm -f {{ kafka_services | join(' ') }} >/dev/null 2>&1 || true"
      - "{{ docker_prefix }} compose -p {{ kafka_project }} -f {{ kafka_compose_file }} up -d --no-deps --force-recreate {{ kafka_services | join(' ') }} >/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 Kafka update commands on VM (via SSH)  # use SSHPASS env, hide item value
      ansible.builtin.command:
        argv:
          - sshpass
          - -e                     # read password from SSHPASS environment
          - ssh
          - -o
          - StrictHostKeyChecking=no
          - -o
          - ConnectTimeout=15
          - "{{ vm_user }}@{{ vm_ip }}"
          - bash
          - -lc
          - "{{ ('sudo ' if use_sudo else '') + item }}"
      environment:
        SSHPASS: "{{ vm_pass }}"    # supply password via environment
      loop: "{{ kafka_commands }}"
      loop_control:
        index_var: idx              # capture loop index
        label: "cmd-{{ idx }}"      # avoid printing full command in (item=...) line
      register: kafka_cmds
      changed_when: false
      no_log: "{{ DEBUG == 0 }}"    # hide outputs and env when not debugging

    - name: Show outputs for each Kafka command
      ansible.builtin.debug:
        msg: |
          CMD: {{ item.item }}
          RC:  {{ item.rc }}
          STDOUT:
          {{ (item.stdout | default('')).strip() }}
          STDERR:
          {{ (item.stderr | default('')).strip() }}
      loop: "{{ kafka_cmds.results }}"
      when: DEBUG == 1

    - name: Fail play if any Kafka command failed  # also hide item label
      ansible.builtin.assert:
        that: "item.rc == 0"
        fail_msg: "Kafka/Redpanda Console update failed on VM: {{ item.item }} (rc={{ item.rc }})"
        success_msg: "All Kafka/Redpanda Console update commands succeeded."
      loop: "{{ kafka_cmds.results }}"
      loop_control:
        index_var: idx
        label: "cmd-{{ idx }}"

    # -------------------------
    # Readiness check – Redpanda Console UI
    # -------------------------

    - name: Redpanda Console | Wait for overview page (controller, with retries)
      ansible.builtin.uri:
        url: "{{ redpanda_console_url }}"
        method: GET
        return_content: true
        validate_certs: false           # plain HTTP on 192.168.69.254 (or as configured)
        status_code: 200
      register: redpanda_controller
      delegate_to: localhost
      run_once: true
      when: redpanda_console_url is defined and (redpanda_console_url | length) > 0
      retries: "{{ redpanda_retries }}"
      delay: "{{ redpanda_delay }}"
      until: redpanda_controller.status == 200
      failed_when: false
      changed_when: false

    - name: Redpanda Console | Print concise summary
      ansible.builtin.debug:
        msg: >-
          Redpanda Console overview {{ 'reachable' if (redpanda_controller is defined and (redpanda_controller.status|default(0))==200) else 'NOT reachable' }}.
          status={{ redpanda_controller.status | default('n/a') }};
          length={{ (redpanda_controller.content | default('')) | length }};
      when: DEBUG == 1 and (redpanda_controller is defined)

    # Optional detailed dump (short excerpt only)
    - name: Redpanda Console | HTML excerpt (debug)
      ansible.builtin.debug:
        msg: "{{ (redpanda_controller.content | default(''))[:500] }}"
      when: DEBUG == 1 and (redpanda_controller is defined) and (redpanda_controller.content is defined)

    # -------------------------
    # Final assertion: Console URL must be reachable
    # -------------------------

    - name: Redpanda Console | Assert overview reachable (if URL configured)
      ansible.builtin.assert:
        that:
          - >
            not (redpanda_console_url is defined and (redpanda_console_url | length) > 0)
            or
            (
              redpanda_controller is defined
              and (redpanda_controller.status | default(0)) == 200
            )
        fail_msg: "Redpanda Console URL {{ redpanda_console_url }} is NOT reachable with HTTP 200 after retries."
        success_msg: "Redpanda Console URL {{ redpanda_console_url }} is reachable with HTTP 200."