Files

126 lines
3.9 KiB
YAML

---
- name: Set architecture fact
ansible.builtin.set_fact:
_prometheus_arch: "{{ {'x86_64': 'amd64', 'aarch64': 'arm64', 'armv7l': 'armv7'}.get(ansible_architecture, 'amd64') }}"
- name: Get Prometheus release info from GitHub
ansible.builtin.uri:
url: >-
{{ 'https://api.github.com/repos/prometheus/prometheus/releases/latest'
if prometheus_version == ''
else 'https://api.github.com/repos/prometheus/prometheus/releases/tags/v' + prometheus_version }}
headers:
Accept: "application/vnd.github.v3+json"
return_content: true
register: _prometheus_release
- name: Set version and download URL facts
ansible.builtin.set_fact:
_prometheus_version_tag: "{{ _prometheus_release.json.tag_name }}"
_prometheus_download_url: >-
{{ _prometheus_release.json.assets
| selectattr('name', 'search', 'linux-' + _prometheus_arch + '.tar.gz')
| map(attribute='browser_download_url')
| first }}
- name: Read installed version
ansible.builtin.slurp:
src: "{{ prometheus_install_dir }}/.version"
register: _prometheus_installed_raw
ignore_errors: true
become: true
- name: Set installed version fact
ansible.builtin.set_fact:
_prometheus_installed_version: >-
{{ (_prometheus_installed_raw.content | b64decode | trim)
if _prometheus_installed_raw is not failed else '' }}
- name: Install or upgrade Prometheus
when: _prometheus_installed_version != _prometheus_version_tag
block:
- name: Download Prometheus archive
ansible.builtin.get_url:
url: "{{ _prometheus_download_url }}"
dest: /tmp/prometheus.tar.gz
mode: '0644'
- name: Create Prometheus installation directory
ansible.builtin.file:
path: "{{ prometheus_install_dir }}"
state: directory
owner: "{{ prometheus_user }}"
group: "{{ prometheus_group }}"
mode: '0755'
become: true
- name: Extract Prometheus archive
ansible.builtin.unarchive:
src: /tmp/prometheus.tar.gz
dest: "{{ prometheus_install_dir }}"
remote_src: true
extra_opts: [--strip-components=1]
owner: "{{ prometheus_user }}"
group: "{{ prometheus_group }}"
become: true
- name: Write installed version file
ansible.builtin.copy:
content: "{{ _prometheus_version_tag }}"
dest: "{{ prometheus_install_dir }}/.version"
owner: "{{ prometheus_user }}"
group: "{{ prometheus_group }}"
mode: '0644'
become: true
- name: Remove downloaded archive
ansible.builtin.file:
path: /tmp/prometheus.tar.gz
state: absent
- name: Create Prometheus directories
ansible.builtin.file:
path: "{{ item }}"
state: directory
owner: "{{ prometheus_user }}"
group: "{{ prometheus_group }}"
mode: '0755'
become: true
loop:
- "{{ prometheus_data_dir }}"
- "{{ prometheus_config_dir }}"
- name: Create Prometheus systemd service
ansible.builtin.copy:
content: |
[Unit]
Description=Prometheus
After=network-online.target
Wants=network-online.target
[Service]
Type=simple
User={{ prometheus_user }}
Group={{ prometheus_group }}
ExecStart={{ prometheus_install_dir }}/prometheus \
--config.file={{ prometheus_config_dir }}/prometheus.yml \
--storage.tsdb.path={{ prometheus_data_dir }} \
--web.console.templates={{ prometheus_install_dir }}/consoles \
--web.console.libraries={{ prometheus_install_dir }}/console_libraries
Restart=on-failure
RestartSec=5s
[Install]
WantedBy=multi-user.target
dest: /etc/systemd/system/prometheus.service
mode: '0644'
become: true
- name: Enable and start Prometheus service
ansible.builtin.systemd:
name: prometheus
enabled: "{{ prometheus_service_enabled }}"
state: "{{ prometheus_service_state }}"
daemon_reload: true
become: true