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Installer un serveur Prometheus

Installation des paquets nécessaires : 

apt-get install wget tar curl -y

Création du fichier Prometheus :

mkdir /etc/prometheus

Changement de répertoire : 

cd /etc/prometheus/

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
mv prometheus-2.26.0.linux-amd64/* .
rm prometheus-2.26.0.linux-amd64/ -r
rm prometheus-2.26.0.linux-amd64.tar.gz

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:
  - job_name:       'node'

    scrape_interval: 5s

    static_configs:
      - targets: ['172.31.65.70:9090', 'localhost:8081']
        labels:
          group: 'production'

      - targets: ['172.31.64.40:80']
        labels:
          group: 'canary'

Démarrage de prometheus :

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

On se rend sur le site web  http://172.31.65.70:9090/graph :

image-1619224547004.png

 

Installation de node exporter : 

useradd node_exporter
passwrd node_exporter

cd /tmp
curl -LO https://github.com/prometheus/node_exporter/releases/download/v0.18.1/node_exporter-0.18.1.linux-amd64.tar.gz

tar -xvf node_exporter-0.18.1.linux-amd64.tar.gz

mv node_exporter-0.18.1.linux-amd64/node_exporter /usr/local/bin/

nano /etc/systemd/system/node_exporter.service :

[Unit]
Description=Node Exporter
After=network.target
 
[Service]
User=node_exporter
Group=node_exporter
Type=simple
ExecStart=/usr/local/bin/node_exporter
 
[Install]
WantedBy=multi-user.target

 

systemctl daemon-reload
systemctl start node_exporter

 

systemctl status node_exporter

 

systemctl enable node_exporter

 

node_exporter --web.listen-address 172.31.64.40:80

 

 

 

 

 

 

apt-get install prometheus
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