preflight.yml

---
- name: "preflight | Stat exporter_exporter binary"
  ansible.builtin.stat:
    path: "/usr/local/bin/exporter_exporter"
  register: "_prometheus_proxy_is_installed"

- name: "preflight | Assert: prometheus_proxy_configuration is defined"
  ansible.builtin.assert:
    that:
      - "prometheus_proxy_configuration"
    fail_msg: "prometheus_proxy_configuration is empty"
    quiet: true

- name: "preflight | Register exporter_exporter version"
  ansible.builtin.shell:
    cmd: >
      set -o pipefail &&
      /usr/local/bin/exporter_exporter --version 2>&1
      | grep -oP 'Version: \K[0-9]+\.[0-9]+\.[0-9]+'
  args:
    executable: "/bin/bash"
  changed_when: false
  failed_when: false
  register: "_prometheus_proxy_current_version_output"

- name: "Debug"
  ansible.builtin.debug:
    var: "_prometheus_proxy_current_version_output"

- name: "preflight | Set facts: _prometheus_proxy_installed_version"
  ansible.builtin.set_fact:
    _prometheus_proxy_installed_version: "{{ _prometheus_proxy_current_version_output.stdout }}"
    _prometheus_proxy_is_installed: "{{ _prometheus_proxy_is_installed.stat.exists }}"

- name: "Debug"
  ansible.builtin.debug:
    msg:
      - "Installed: {{ _prometheus_proxy_is_installed }}"
      - "Version: {{ _prometheus_proxy_installed_version | default('-') }}"