---

- name: Get latest mysqld_exporter version
  github_release:
    user: prometheus
    repo: mysqld_exporter
    action: latest_release
    token: "{{ vault_github_token }}"
  delegate_to: localhost
  run_once: true
  register: mysqld_exporter_version
- name: "{{ mysqld_exporter_version }}"
  set_fact:
    mysqld_exporter_version: "{{ mysqld_exporter_version | replace ('v', '', 1) | trim }}"
  run_once: true

- name: Set architecture alias
  set_fact:
    architecture_alias: "amd64"  # noqa: var-naming[no-role-prefix]
  when: ansible_architecture == "x86_64"

- name: Set architecture alias
  set_fact:
    architecture_alias: "arm64"  # noqa: var-naming[no-role-prefix]
  when: ansible_architecture == "aarch64"

- name: Download mysqld_exporter {{ mysqld_exporter_version.tag }} from GitHub
  get_url:
    url: "https://github.com/prometheus/mysqld_exporter/releases/download/\
          v{{ mysqld_exporter_version.tag }}/mysqld_exporter-{{ mysqld_exporter_version.tag }}\
          .linux-{{ architecture_alias }}.tar.gz"
    dest: "/var/tmp/mysqld_exporter.tar.gz"
  register: mysqld_exporter_download_archive
  until: mysqld_exporter_download_archive is succeeded
  retries: 3
  delay: 5

- name: Unpack mysqld_exporter
  unarchive:
    remote_src: true
    src: "/var/tmp/mysqld_exporter.tar.gz"
    dest: "{{ mysqld_exporter_install_dir }}"
    owner: root
    group: root
    extra_opts:
      --strip-components=1
    include:
      - "mysqld_exporter-{{ mysqld_exporter_version.tag }}.linux-{{ architecture_alias }}/mysqld_exporter"
  notify: Restart mysqld_exporter

- name: Copy the mysqld_exporter systemd service file
  template:
    src: mysqld_exporter.service.j2
    dest: /etc/systemd/system/mysqld_exporter.service
    owner: root
    group: root
    mode: "0644"
  notify: Restart mysqld_exporter