Installing Prometheus

1. Introduction

Prometheus is an open-source monitoring solution designed for reliability and scalability. It collects metrics from configured targets at specified intervals, evaluates rule expressions, and can trigger alerts based on the results.

2. Prerequisites

Before installing Prometheus, ensure that you have:

• A Linux-based operating system (Ubuntu, CentOS, etc.).
• Root or sudo privileges.
• Basic knowledge of command line operations.

3. Installation Steps

This section outlines the steps to install Prometheus on a Linux system.

1. Update your package manager:

sudo apt update

2. Download the latest version of Prometheus:

wget https://github.com/prometheus/prometheus/releases/latest/download/prometheus-*.tar.gz

3. Extract the downloaded tarball:

tar -xvf prometheus-*.tar.gz

4. Move into the Prometheus directory:

cd prometheus-*

5. Start Prometheus:

./prometheus --config.file=prometheus.yml

4. Configuration

Prometheus uses a YAML configuration file. Below is a basic example of the configuration:

global:
  scrape_interval: 15s
scrape_configs:
  - job_name: 'prometheus'
    static_configs:
      - targets: ['localhost:9090']
            

5. FAQ