Zipkin: Zipkin is a distributed tracing system. It helps gather timing data needed to troubleshoot latency problems in service architectures.
Sleuth: Spring Cloud Sleuth provides Spring Boot auto-configuration for distributed tracing.
Auctuator:
Actuator brings production-ready features to our application. Monitoring our app, gathering metrics, understanding traffic, or the state of our database become trivial with this dependency
Actuactor is mainly used to expose operational information about the running application - health, metrics, info, dump, env, etc. It uses http endpoints or JMX beans to enable us to interact with it.
Mirometer:
Micrometer is a dimensional-first metrics collection facade whose aim is to allow you to time, count, and gauge your code with a vendor neutral API.
Mircrometer automatically exposes /actuactor/ metrics data into something your monitoring system can understand. All you need to do is include that vendor-specific merometer dependency in your application. Think SLF4J, but for metrics.
Prometheus:
Prometheus is an open-source systems monitoring and alerting toolkit
It is time-series database that stores our metric data by pulling it (using a built-in data scaper) periodically over HTTP. It also has a simple user interface where we can visualize/query on all of the collected metrics.
Grafana:
a visualize framework to present the data
Grafana can pull data from various data sources like Prometheus and offers a rich UI where you can build up custom graphs quickly and create a dashboard out of many graphs in no time. It also allow you to set rule-based alerts, for notifications.
Consul: service mesh, miroservices based networking.
Zuul: API gateway
Log4J logback-spring.xml
Reference: Master Microservices with Java, Spring, Docker, Kubernetes by Eazy Bytes