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Prometheus-grafana » Historique » Version 3

pizzacoca, 07/03/2020 06:56

1 1 pizzacoca 
# Prometheus-grafana
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> Prometheus est une supervision client / serveur. 





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> Le serveur est consultable sous localhost:9093





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> Les clients produisent une page localhost:9100 que le serveur écoute





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**[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)** .





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





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## Serveur Prometheus





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### Installation





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**/etc/apt/sources.list**





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```





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deb https://packages.grafana.com/enterprise/deb stable main





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```





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Il est nécessaire d'ajouter la clef gpg pour ce dépôt.





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```





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gpg --receive-key 8C8C34C524098CB6





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apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 8C8C34C524098CB6





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apt update





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apt install grafana-enterprise





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```





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### Configuration





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La configuration se fait via un fichier yaml. Ici un exemple.





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**/etc/prometheus/prometheus.yml**





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```





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# Sample config for Prometheus.





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global:





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  scrape_interval:     15s # Set the scrape interval to every 15 seconds. Default is every 1 minute.





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  evaluation_interval: 15s # Evaluate rules every 15 seconds. The default is every 1 minute.





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  # scrape_timeout is set to the global default (10s).





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  # Attach these labels to any time series or alerts when communicating with





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  # external systems (federation, remote storage, Alertmanager).





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  external_labels:





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      monitor: 'example'





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# Alertmanager configuration





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alerting:





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  alertmanagers:





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  - static_configs:





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    - targets: ['localhost:9093']





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# Load rules once and periodically evaluate them according to the global 'evaluation_interval'.





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rule_files:





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  # - "first_rules.yml"





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  # - "second_rules.yml"





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# A scrape configuration containing exactly one endpoint to scrape:





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# Here it's Prometheus itself.





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scrape_configs:





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  # The job name is added as a label `job=<job_name>` to any timeseries scraped from this config.





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  - job_name: 'prometheus'





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





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    scrape_interval: 5s





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    scrape_timeout: 5s





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    # metrics_path defaults to '/metrics'





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    # scheme defaults to 'http'.





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    static_configs:





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      - targets: ['localhost:9090']





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  - job_name: Mes_machines_virtuelles





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    static_configs:





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      - targets: 





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        - 'domaine.associe.ou.adresse.ip:9100'





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        - 'XXX.XXX.XXX.XXX:9100'





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  - job_name: noeud_pour_autres_machines





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    # If prometheus-node-exporter is installed, grab stats about the local





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    # machine by default.





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    static_configs:





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        # première syntaxe yaml





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        #- targets: ['localhost:9100']





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        # deuxième syntaxe yaml





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      - targets: 





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        - 'localhost:9100' # la machine qui s'écoute





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        - 'XXX.XXX.XXX.XXX:9100'





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        - 'YYY.YYY.YYY.YYY:9100'





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```





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### Lancement





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```





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systemctl start grafana-server





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```





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Ou pour relancer





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```





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systemctl reload prometheus





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```