mirror of
https://github.com/RWejlgaard/pez-infra.git
synced 2026-05-06 04:14:43 +00:00
Rasmus "Pez" Wejlgaard
a31f8b5651
* Add systemd_exporter Ansible role and Prometheus scrape config - Create systemd_exporter role (download binary, create user, deploy service) - Add scrape job for london-b:9558 and copenhagen-a:9558 - Add systemd_exporter_hosts inventory group - Add stage 3b to deploy.yml - Map role to deploy-on-merge scope Closes PESO-120 * Fix line length lint violations in systemd_exporter tasks * Fix var-naming lint: use systemd_exporter_ prefix for role variables
98 lines
2.9 KiB
YAML
98 lines
2.9 KiB
YAML
---
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# Install and configure systemd_exporter for Prometheus monitoring.
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# Downloads the binary from GitHub releases and deploys a systemd service.
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# Linux only — systemd_exporter has no FreeBSD equivalent.
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- name: Create systemd_exporter group
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ansible.builtin.group:
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name: "{{ systemd_exporter_group }}"
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system: true
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state: present
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- name: Create systemd_exporter user
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ansible.builtin.user:
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name: "{{ systemd_exporter_user }}"
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group: "{{ systemd_exporter_group }}"
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system: true
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shell: /usr/sbin/nologin
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create_home: false
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- name: Check if systemd_exporter binary exists
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ansible.builtin.stat:
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path: /usr/local/bin/systemd_exporter
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register: systemd_exporter_bin
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- name: Get installed version
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ansible.builtin.command: /usr/local/bin/systemd_exporter --version
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register: systemd_exporter_installed_version
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changed_when: false
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failed_when: false
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when: systemd_exporter_bin.stat.exists
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- name: Set architecture fact
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ansible.builtin.set_fact:
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systemd_exporter_arch: >-
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{{ ansible_architecture
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| regex_replace('x86_64', 'amd64')
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| regex_replace('aarch64', 'arm64') }}
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- name: Set release and URL facts
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ansible.builtin.set_fact:
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systemd_exporter_release: >-
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systemd_exporter-{{ systemd_exporter_version }}.linux-{{ systemd_exporter_arch }}
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systemd_exporter_base_url: >-
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https://github.com/prometheus-community/systemd_exporter
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- name: Download and install systemd_exporter
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when: >-
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not systemd_exporter_bin.stat.exists or
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systemd_exporter_version not in
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(systemd_exporter_installed_version.stdout | default(''))
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block:
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- name: Download systemd_exporter tarball
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ansible.builtin.get_url:
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url: >-
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{{ systemd_exporter_base_url }}/releases/download/v{{
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systemd_exporter_version }}/{{
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systemd_exporter_release }}.tar.gz
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dest: /tmp/systemd_exporter.tar.gz
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mode: '0644'
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- name: Extract systemd_exporter binary
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ansible.builtin.unarchive:
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src: /tmp/systemd_exporter.tar.gz
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dest: /tmp
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remote_src: true
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- name: Install systemd_exporter binary
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ansible.builtin.copy:
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src: "/tmp/{{ systemd_exporter_release }}/systemd_exporter"
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dest: /usr/local/bin/systemd_exporter
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mode: '0755'
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owner: root
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group: root
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remote_src: true
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notify: Restart systemd_exporter
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- name: Clean up tarball
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ansible.builtin.file:
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path: "{{ item }}"
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state: absent
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loop:
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- /tmp/systemd_exporter.tar.gz
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- "/tmp/{{ systemd_exporter_release }}"
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- name: Deploy systemd_exporter service file
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ansible.builtin.template:
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src: systemd_exporter.service.j2
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dest: /etc/systemd/system/systemd_exporter.service
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mode: '0644'
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notify:
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- Reload systemd
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- Restart systemd_exporter
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- name: Enable and start systemd_exporter
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ansible.builtin.service:
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name: systemd_exporter
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state: started
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enabled: true
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