Observability - spring

1. Tools/frameworks (non-aws )

• https://chat.deepseek.com/a/chat/s/5effe43a-7c05-433f-8df6-3326b6e311c6
• actuator
  • http://localhost:8083/spring/actuator/metrics --> show metric names
  • actuator.json
• prometheous
  • http://localhost:8083/spring/actuator/prometheus
  • PrometheusMicrometerConfig.java
• grafana
  • launch locally : docker run -d -p 3000:3000 --name=grafana grafana/grafana-enterprise
  • http://localhost:3000
  • https://lekhrajdinkar.grafana.net/a/grafana-setupguide-app/getting-started | github ld account
  • admin | admin
  • UI for Prometheus,etc
• micro meter
  • like otel, to instrument, but sends only metric to prometheus server, datadog, etc. dependecies:
    • micrometer-registry-datadog
    • micrometer-registry-prometheus
    • ...
  • otel (unified : metric, log, trace) , sends to also multiple server
  • eg: MicrometerController.java

      test_counter_total{application="spring-lekhraj-app",} 1.0
      test_counter_total{application="spring-lekhraj-app",} 2.0
      test_counter_total{application="spring-lekhraj-app",} 3.0
    

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