Installer un serveur Prometheus

Installation des paquets nécessaires : 

apt-get install wget tar -y

Téléchargement de l'archive :

wget https://github.com/prometheus/prometheus/releases/download/v2.26.0/prometheus-2.26.0.linux-amd64.tar.gz

Extraction de l'archive :

tar xvfz prometheus-*.tar.gz
cd prometheus-*

Remplir le fichier prometheus.yml comme ci-dessous : 

global:
  scrape_interval:     15s # By default, scrape targets every 15 seconds.

  # Attach these labels to any time series or alerts when communicating with
  # external systems (federation, remote storage, Alertmanager).
  external_labels:
    monitor: 'codelab-monitor'

# A scrape configuration containing exactly one endpoint to scrape:
# Here it's Prometheus itself.
scrape_configs:
  # The job name is added as a label `job=<job_name>` to any timeseries scraped from this config.
  - job_name: 'prometheus'

    # Override the global default and scrape targets from this job every 5 seconds.
    scrape_interval: 5s

    static_configs:
      - targets: ['localhost:9090']

Démarrage de prometheus :

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