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Prometheus-grafana » Historique » Révision 2

Révision 1 (pizzacoca, 07/03/2020 06:43) → Révision 2/17 (pizzacoca, 07/03/2020 06:53)

# Prometheus-grafana 

 **[Prometheus](https://prometheus.io/)** est sous licence **[Apache 2](https://www.apache.org/licenses/LICENSE-2.0)** . Les sources sont disponibles sous **[github](https://github.com/prometheus)** . 

 Prometheus existe aussi sous la forme de paquets pour debian10, ce que nous allons utiliser. 


 ## Serveur Prometheus 

 ### Installation 

 **/etc/apt/sources.list** 
 ``` 
 deb https://packages.grafana.com/enterprise/deb stable main 
 ``` 

 Il est nécessaire d'ajouter la clef gpg pour ce dépôt. 
 ``` 
 gpg --receive-key 8C8C34C524098CB6 
 apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 8C8C34C524098CB6 
 apt update 
 apt install grafana-enterprise 
 ``` 

 ### Configuration 

 La configuration se fait via un fichier yaml. Ici un exemple. 
 **/etc/prometheus/prometheus.yml** 
 ``` 
 # Sample config for Prometheus. 

 global: 
   scrape_interval:       15s # Set the scrape interval to every 15 seconds. Default is every 1 minute. 
   evaluation_interval: 15s # Evaluate rules every 15 seconds. The default is every 1 minute. 
   # scrape_timeout is set to the global default (10s). 

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

 # Alertmanager configuration 
 alerting: 
   alertmanagers: 
   - static_configs: 
     - targets: ['localhost:9093'] 

 # Load rules once and periodically evaluate them according to the global 'evaluation_interval'. 
 rule_files: 
   # - "first_rules.yml" 
   # - "second_rules.yml" 

 # 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 
     scrape_timeout: 5s 

     # metrics_path defaults to '/metrics' 
     # scheme defaults to 'http'. 

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

   - job_name: Mes_machines_virtuelles 
     static_configs: 
       - targets:  
         - 'domaine.associe.ou.adresse.ip:9100' 
         - 'XXX.XXX.XXX.XXX:9100' 


   - job_name: noeud_pour_autres_machines 
     # If prometheus-node-exporter is installed, grab stats about the local 
     # machine by default. 
     static_configs: 
         # première syntaxe yaml 
         #- targets: ['localhost:9100'] 
         # deuxième syntaxe yaml 
       - targets:  
         - 'localhost:9100' # la machine qui s'écoute 
         - 'XXX.XXX.XXX.XXX:9100' 
         - 'YYY.YYY.YYY.YYY:9100' 
 ``` 

 ### Lancement 

 Tout simplement 
 ``` 
 systemctl start grafana-server 
 ``` 
 Ou pour relancer 
 ``` 
 systemctl reload prometheus 
 ``` 


 Le serveur est alors