smartinrub / demospringboot-prometheus

Spring Boot with Prometheus

demospringboot-prometheus

Setup Prometheus Server UI

1. Build docker image

cd demospringboot-prometheus
docker build -t my-prometheus .

2. Run docker image

docker run -p 9090:9090 my-prometheus

3. Open Prometheus UI Go to your browser and type http://localhost:9090/targets

Run project

Go to your IDE and run the spring boot application To show prometheus logs without the UI go to http://localhost:8080/prometheus

Types of metrics

• for Prometheus metrics https://prometheus.io/docs/concepts/metric_types/
• Dropwizard Metrics library

Grafana

Setup

docker run -d -p 3000:3000 -e \"GF_SECURITY_ADMIN_PASSWORD=secret\" -v ~/grafana_db:/var/lib/grafana grafana/grafana

• -v creates a Docker volume placed at ~/grafana_db on the host system and at /var/lib/grafana in the container filesystem
• Grafana Documentation
• Installation

Add Prometheus as a Grafana Data Source

• Go to Grafana main view at http://localhost:3000/
• Do login: admin/secret
• Click on the Grafana icon in the top left corner to show the main menu, select Data Sources and click Add data source
• Insert the following values:

• Name: Prometheus
• Type: Prometheus
• URL: http://YOUR_LOCALHOST_IP(default port is 9090)
• Access: proxy

• Click on Add and Test Connection

Create Dashboard

• Click on the Grafana icon in the top left corner to show the main menu, select Dashboards, New
• Choose type of panel (Graph for example)
• Click on panel title to edit
• Choose Data Source, Add Query and save it