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| (4 versions intermédiaires par le même utilisateur non affichées) |
| Ligne 1 : |
Ligne 1 : |
| | | Retour [[Linux]] | [[Accueil]] |
| {| class="wikitable" style="width:100%;" | | {| class="wikitable" style="width:100%;" |
| ! Thème | | ! Thème |
| Ligne 8 : |
Ligne 8 : |
| | Mini‑checklist : Surveillance disque LVM | | | Mini‑checklist : Surveillance disque LVM |
| | [[Surveillance disque LVM]] | | | [[Surveillance disque LVM]] |
| | |- |
| | | Extension du disque système PBS (LVM, Proxmox VE) |
| | | Mini‑checklist : Extension disque |
| | | [[Extension du disque LVM]] |
| |- | | |- |
| | Supervision | | | Supervision |
| | Installation de Prometheus, Node Exporter et Grafana, Cockpit | | | Installation de Prometheus, Node Exporter et Grafana, Cockpit |
| | [[Prometheus]] [[Node_Exporter]] [[Grafana]] [[Cockpit]] | | | [[Prometheus - Grafana - Node_Exporter]] |
| |- | | |- |
| | Pièges NGINX à éviter | | | Pièges NGINX à éviter |
| Ligne 17 : |
Ligne 21 : |
| | [[Reverse Proxy NGINX]] | | | [[Reverse Proxy NGINX]] |
| |} | | |} |
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| <h1>Procédure technique : Supervision Debian avec Prometheus & Grafana</h1>
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| <h2>1. Installation du poste Debian</h2>
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| Installer Debian 13 “Trixie”
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| Configurer l’interface réseau
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| Créer l’utilisateur <code>eugène</code> avec sudo
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| Activer le serveur SSH
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|
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| <h2>2. Configuration SSH</h2>
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| <pre><code>sudo systemctl enable --now ssh
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| sudo ufw allow ssh</code></pre>
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|
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| <h2>3. Installation de Prometheus</h2>
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| <pre><code>cd /opt
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| wget https://github.com/prometheus/prometheus/releases/download/v2.49.1/prometheus-2.49.1.linux-amd64.tar.gz
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| tar -xzf prometheus-2.49.1.linux-amd64.tar.gz
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| mv prometheus-2.49.1.linux-amd64 prometheus</code></pre>
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|
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| <h2>4. Configuration du service Prometheus</h2>
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| <pre><code>sudo useradd --no-create-home --shell /usr/sbin/nologin prometheus
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| sudo mkdir /etc/prometheus /var/lib/prometheus
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| sudo cp /opt/prometheus/prometheus.yml /etc/prometheus/
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| sudo cp /opt/prometheus/prometheus /usr/local/bin/
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| sudo chown -R prometheus:prometheus /etc/prometheus /var/lib/prometheus /usr/local/bin/prometheus</code></pre>
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|
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| <h3>Fichier systemd</h3>
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| <pre><code>[Unit]
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| Description=Prometheus Monitoring
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| Wants=network-online.target
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| After=network-online.target
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|
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| [Service]
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| User=prometheus
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| Group=prometheus
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| Type=simple
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| ExecStart=/usr/local/bin/prometheus \
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| --config.file=/etc/prometheus/prometheus.yml \
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| --storage.tsdb.path=/var/lib/prometheus \
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| --web.listen-address=0.0.0.0:9091
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|
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| [Install]
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| WantedBy=multi-user.target</code></pre>
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|
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| <pre><code>sudo systemctl daemon-reload
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| sudo systemctl enable --now prometheus</code></pre>
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|
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| <h2>5. Installation de Node Exporter</h2>
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| <pre><code>cd /opt
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| wget https://github.com/prometheus/node_exporter/releases/download/v1.7.0/node_exporter-1.7.0.linux-amd64.tar.gz
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| tar -xzf node_exporter-1.7.0.linux-amd64.tar.gz
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| mv node_exporter-1.7.0.linux-amd64 node_exporter</code></pre>
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|
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| <pre><code>sudo useradd --no-create-home --shell /usr/sbin/nologin node_exporter
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| sudo cp /opt/node_exporter/node_exporter /usr/local/bin/
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| sudo chown node_exporter:node_exporter /usr/local/bin/node_exporter</code></pre>
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|
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| <h3>Fichier systemd</h3>
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| <pre><code>[Unit]
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| Description=Node Exporter
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| Wants=network-online.target
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| After=network-online.target
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|
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| [Service]
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| User=node_exporter
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| Group=node_exporter
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| Type=simple
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| ExecStart=/usr/local/bin/node_exporter
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|
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| [Install]
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| WantedBy=default.target</code></pre>
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|
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| <pre><code>sudo systemctl daemon-reload
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| sudo systemctl enable --now node_exporter</code></pre>
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|
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| <h2>6. Configuration Prometheus pour Node Exporter</h2>
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| <pre><code>sudo nano /etc/prometheus/prometheus.yml</code></pre>
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|
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| <h3>Contenu corrigé</h3>
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| <pre><code>global:
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| scrape_interval: 15s
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| evaluation_interval: 15s
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| alerting:
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| alertmanagers:
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| - static_configs:
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| - targets: []
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|
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| scrape_configs:
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| - job_name: "prometheus"
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| static_configs:
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| - targets: ["localhost:9091"]
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|
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| - job_name: "node_exporter"
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| static_configs:
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| - targets: ["localhost:9100"]</code></pre>
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|
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| <pre><code>promtool check config /etc/prometheus/prometheus.yml
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| sudo systemctl restart prometheus</code></pre>
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|
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| <h2>7. Installation de Grafana via dépôt APT</h2>
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| <pre><code>sudo apt-get install -y apt-transport-https wget gpg
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| sudo mkdir -p /etc/apt/keyrings
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| wget -q -O - https://apt.grafana.com/gpg.key | gpg --dearmor | sudo tee /etc/apt/keyrings/grafana.gpg > /dev/null
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| echo "deb [signed-by=/etc/apt/keyrings/grafana.gpg] https://apt.grafana.com stable main" | sudo tee /etc/apt/sources.list.d/grafana.list
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| sudo apt-get update
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| sudo apt-get install grafana
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| sudo systemctl enable --now grafana-server</code></pre>
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|
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| <h2>8. Configuration Grafana</h2>
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|
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| Accéder à <code>http://IP_DE_TA_VM:3000</code>
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| Login : <code>admin</code> / Mot de passe : <code>admin</code>
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| Ajouter une source Prometheus : <code>http://localhost:9091</code>
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|
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| <h2>9. Import du dashboard Node Exporter Full</h2>
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| Menu → <strong>+ Import</strong>
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| ID du dashboard : <code>1860</code>
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| Associer à la source Prometheus
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| Cliquer sur <strong>Import</strong>
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