marun790 / prometheus_tryout Goto Github PK

This app is about setting up a spring boot app with prometheus

you can import this application in intellij and run the application

below are the instrumentation which enables the application to emmit the prometheus metrics

implementation 'org.springframework.boot:spring-boot-starter-actuator' runtimeOnly 'io.micrometer:micrometer-registry-prometheus'

Once the application is up and running you can access below URLs [http://localhost:8080/actuator](All observability URI) [http://localhost:8080/actuator/prometheus](Prometheus metrics endpoint)

Now let's bring prometehus in to the came, We are using Colima with docker for this setup. brew install colima colima start

checkout the file ext/prometheus.yaml, at line No 20 change your ip address

Now let's add node exporter for your machine

if you have brew you can install using below command

brew install node_exporter

brew services start node_exporter

- job_name: 'my_mac' in [APPLICATION_DIRECTORY]/ext/prometheus.yaml will help prometheus to scrape metrics of host machine which is your Mac

In below change your 'APPLICATION_DIRECTORY'

docker run -d --name=prometheus -p 9090:9090 \ -v [APPLICATION_DIRECTORY]/ext/prometheus.yaml:/etc/prometheus/prometheus.yml prom/prometheus \ --config.file=/etc/prometheus/prometheus.yml

check prometheus you should be able to view the prometheus UI and you can play with promql