---
- name: Check current node exporter version.
  ansible.builtin.command: "{{ node_exporter_install_node_exporter_bin_path }} --version"
  failed_when: false
  changed_when: false
  register: node_exporter_version_check

- name: Download and unarchive node exporter into temporary location.
  ansible.builtin.unarchive:
    src: "{{ node_exporter_install_node_exporter_download_url }}"
    dest: /tmp
    remote_src: true
    mode: '0755'
  when: node_exporter_version_check.stdout is not defined or node_exporter_version_check.stdout | length == 0
  register: node_exporter_download_check

- name: Move node exporter binary into place.
  ansible.builtin.copy:
    src: "/tmp/node_exporter-{{ node_exporter_install_node_exporter_version }}.linux-amd64/node_exporter"
    dest: "{{ node_exporter_install_node_exporter_bin_path }}"
    mode: '0755'
    remote_src: true
  when: node_exporter_download_check is changed or node_exporter_version_check.stdout | length == 0
  ignore_errors: "{{ ansible_check_mode }}"

- name: Create node_exporter group (optional fixed GID)
  ansible.builtin.group:
    name: node_exporter
    gid: "{{ node_exporter_install_node_exporter_gid | default(omit) }}"
    state: present
  when: "node_exporter_install_node_exporter_gid is defined"

- name: Create node_exporter user (optional fixed UID)
  ansible.builtin.user:
    name: node_exporter
    shell: /sbin/nologin
    create_home: false
    uid: "{{ node_exporter_install_node_exporter_uid | default(omit) }}"
    group: "{{ (node_exporter_install_node_exporter_gid is defined) | ternary('node_exporter', omit) }}"
    state: present

- name: Copy the node exporter systemd unit file.
  ansible.builtin.template:
    src: node_exporter.service.j2
    dest: /etc/systemd/system/node_exporter.service
    mode: '0644'
  register: node_exporter_service

- name: Create direcory for textfile collector
  ansible.builtin.file:
    path: /var/lib/node_exporter/textfile_collector
    state: directory
    mode: '0755'
    owner: node_exporter
    group: node_exporter
    recurse: true

- name: Copy script for docker state check
  ansible.builtin.copy:
    src: files/docker-ps-metrics.sh
    dest: /usr/local/bin/docker-ps-metrics.sh
    owner: root
    group: root
    mode: '0744'
  when: inventory_hostname is match("^PTAF")

- name: Create cron job for docker state check
  ansible.builtin.cron:
    name: "Collect Docker state check"
    minute: "*/1"
    job: "/usr/local/bin/docker-ps-metrics.sh"
    user: root
  when: inventory_hostname is match("^PTAF")

- name: Copy script shared memory check
  ansible.builtin.copy:
    src: files/collect-shm-metrics.sh
    dest: /usr/local/bin/collect-shm-metrics.sh
    owner: root
    group: root
    mode: '0744'
  when: inventory_hostname is match("^PTAF")

- name: Create cron job for shared memory check
  ansible.builtin.cron:
    name: "Collect Docker shared memory check"
    minute: "*/1"
    job: "/usr/local/bin/collect-shm-metrics.sh"
    user: root
  when: inventory_hostname is match("^PTAF")

- name: Copy script for docker CPU check
  ansible.builtin.copy:
    src: files/docker-cpu-metrics.sh
    dest: /usr/local/bin/docker-cpu-metrics.sh
    owner: root
    group: root
    mode: '0744'
  when: inventory_hostname is match("^PTAF")

- name: Add first cron job
  ansible.builtin.cron:
    name: "Docker CPU Metrics (every minute)"
    minute: "*"
    hour: "*"
    day: "*"
    month: "*"
    weekday: "*"
    job: "/usr/local/bin/docker-cpu-metrics.sh"
    user: "root"
  when: inventory_hostname is match("^PTAF")

- name: Add second cron jobcron
  ansible.builtin.cron:
    name: "Docker CPU Metrics (with 30s delay)"
    minute: "*"
    hour: "*"
    day: "*"
    month: "*"
    weekday: "*"
    job: "( sleep 30 && /usr/local/bin/docker-cpu-metrics.sh )"
    user: "root"
  when: inventory_hostname is match("^PTAF")

- name: Systemd restarted, enable node_exporter and restart node_exporter
  ansible.builtin.systemd:
    name: node_exporter
    state: restarted
    enabled: true
    daemon_reload: true
  when: node_exporter_service is changed
...