How to install Prometheus & Grafana with Docker
Prometheus and Grafana are two powerful open-source tools that work together to create a complete monitoring stack for your server. Prometheus collects and stores metrics, while Grafana visualizes that data in beautiful, customizable dashboards. This guide shows you how to set them up using Docker Compose.
Prerequisites:
- A server running a modern Linux distribution (e.g., Ubuntu 22.04).
- Docker and Docker Compose installed. You can find the official guide here: Install Docker Engine on Ubuntu.
- A domain name pointing to your server's IP address (recommended for accessing Grafana).
Installation Steps
First, create a directory for your monitoring stack. Inside it, create a subdirectory for the Prometheus configuration.
Create Directories
mkdir monitoring-stack
cd monitoring-stack
mkdir prometheus_config
Now, create the Prometheus configuration file named prometheus.yml inside the new subdirectory:
Create Prometheus Config File
nano prometheus_config/prometheus.yml
Paste the following basic configuration. This tells Prometheus to monitor itself and an agent called "node-exporter", which we will set up next.
prometheus.yml
global:
scrape_interval: 15s
scrape_configs:
- job_name: 'prometheus'
static_configs:
- targets: ['localhost:9090']
- job_name: 'node-exporter'
static_configs:
- targets: ['node-exporter:9100']