This repo contains a simple Spring Boot application that publishes Proemtheus-style metrics in Kubernetes
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Run application:
mvn -f app/pom.xml spring-boot:run -
Access the application:
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Access metrics endpoint
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Build and push Docker image:
mvn -f app/pom.xml package -PjibOptionally, build to Docker daemon:
mvn -f app/pom.xml jib:dockerBuild -PjibAlternatively, build using
Dockerfile:docker image build -t arungupta/greeting:prom . docker image push arungupta/greeting:prom -
Deploy to k8s:
helm install --name myapp chart -
Access the application:
ENDPOINT=$(kubectl get svc/myapp-greeting \ -o jsonpath='{.status.loadBalancer.ingress[0].hostname}') curl http://$ENDPOINT/hello -
Access prometheus metrics at:
curl http://$ENDPOINT/actuator/prometheus # HELP jvm_threads_daemon_threads The current number of live daemon threads # TYPE jvm_threads_daemon_threads gauge jvm_threads_daemon_threads 16.0 # HELP http_server_requests_seconds # TYPE http_server_requests_seconds summary http_server_requests_seconds_count{exception="None",method="GET",outcome="SUCCESS",status="200",uri="/hello",} 2.0 http_server_requests_seconds_sum{exception="None",method="GET",outcome="SUCCESS",status="200",uri="/hello",} 0.040638166 http_server_requests_seconds_count{exception="None",method="GET",outcome="CLIENT_ERROR",status="404",uri="/**",} 2.0 http_server_requests_seconds_sum{exception="None",method="GET",outcome="CLIENT_ERROR",status="404",uri="/**",} 0.01150999 # HELP http_server_requests_seconds_max # TYPE http_server_requests_seconds_max gauge http_server_requests_seconds_max{exception="None",method="GET",outcome="SUCCESS",status="200",uri="/hello",} 0.003151873 http_server_requests_seconds_max{exception="None",method="GET",outcome="CLIENT_ERROR",status="404",uri="/**",} 0.006369922 # 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