Clément Désiles
12b81919c3
- grafana: postgres backend, provisioning (prometheus datasource + node/NUT dashboards) - prometheus: native service, scrape config via host_vars, localhost bind - node_exporter: host metrics exporter (localhost:9100)
1.9 KiB
1.9 KiB
Prometheus Role
Installs and configures Prometheus monitoring system as a native system service.
Supported Distributions
- Arch Linux
- Debian/Ubuntu
Features
- Native system installation (no containers)
- Configurable scrape targets and intervals
- Optional Nginx reverse proxy with SSL
- Retention policy configuration
- Alert manager integration support
- Rule files support
Configuration
See defaults/main.yml for all available variables.
Basic Configuration
prometheus_scrape_interval: 15s
prometheus_retention_time: 15d
prometheus_web_listen_address: "127.0.0.1:9090"
Scrape Targets
prometheus_scrape_configs:
- job_name: 'prometheus'
static_configs:
- targets: ['localhost:9090']
- job_name: 'node_exporter'
static_configs:
- targets: ['localhost:9100']
Nginx Reverse Proxy
prometheus_nginx_enabled: true
prometheus_nginx_server_name: prometheus.example.com
prometheus_nginx_ssl_certificate: /path/to/cert.pem
prometheus_nginx_ssl_certificate_key: /path/to/key.pem
Usage
- hosts: monitoring
roles:
- prometheus
With custom configuration:
- hosts: monitoring
vars:
prometheus_retention_time: 30d
prometheus_scrape_configs:
- job_name: 'prometheus'
static_configs:
- targets: ['localhost:9090']
- job_name: 'node_exporter'
static_configs:
- targets: ['localhost:9100']
roles:
- prometheus
Architecture
- Installation: Native package from distribution repositories
- Service: System systemd service
- Configuration:
/etc/prometheus/prometheus.yml - Data:
/var/lib/prometheus - Listen:
127.0.0.1:9090(localhost only by default)
Security
- Binds to localhost by default
- Optional SSL-enabled reverse proxy via Nginx
- Data directory restricted to prometheus user (mode 0750)