Prerequisite:-

• Basic overview of Prometheus & Grafana

• A server with Jenkins installed on it

Step 1:- Install Prometheus plugin in Jenkins

• We need to install the plugin of Prometheus in Jenkins so that Prometheus can gather all the metrics of Jenkins

• In Jenkins click on manage plugin and search for Prometheus metrics plugin and click on install

• The default path for Jenkins metrics is <Public-IP:8080/prometheus>

• We can also change the default path of Jenkins metrics. Click on Manage Jenkins -> Configure System -> Search for Prometheus and change the path.

Step 2:- Modify the configuration file of Prometheus

• Prometheus manages the configuration file named prometheus.yml in which we can define various configuration like alerts, scrape_configs etc.

• In order for Prometheus to gather the metrics of the Docker node we need to define below code in prometheus.yml under the scrape_configs stanza

sudo vi /etc/prometheus/prometheus.yml

- job_name: "Jenkins Job"
  scheme: https
  metrics_path: '/prometheus'
  static_configs:
    - targets: ["jenkins.com"]  ##your jenkins URL or IP address x.x.x.x:8080

• After adding the code we can check our node as a target in the Prometheus. It will take some time for Prometheus to gather all the metrics and display the state of node to Up.

Step 3:- Add data source in Grafana

• Now in Grafana we need to add Prometheus as the data source

• After that, in the URL section of we need to enter the IP address of the Prometheus server and 9090 port

  

Step 4:- Create a Dashboard

• In Grafana we can create various kinds of dashboards as per our need

• Import the Dashboard ID is: 9964