Performance Service

• Dockered Spring Boot App
  • logback-spring.xml configured using LogstashTcpSocketAppender to transfer log statements to a logstash instance
  • executed in a Docker container
• ELK Docker container
  • Logstash
    • receiving log statements from the spring boot app via tcp
    • persisting them in elasticsearch
  • Elasticsearch
    • indexed log store
  • Kibana
    • Dashboard to discover log data stored in elasticsearch
• All containers linked via Docker network

Overview

How to run it?

1. build the docker images by executing mvn clean install
2. startup Docker containers by executing docker-compose up
3. create an index pattern, f.e. logstash-*, in Kibana dashboard

Troubleshooting

1. Docker time out of sync with OSX host after system sleep
   • Time drift in Moby VM and containers caused by system sleep
   • Docker time outof sync with osx host

References

These were very helpful resources when building this small exapmle:

• https://elk-docker.readthedocs.io
• https://blog.codecentric.de/2016/07/spring-boot-apache-cxf-logging-monitoring-logback-elasticsearch-logstash-kibana/
• https://blog.codecentric.de/en/2014/10/log-management-spring-boot-applications-logstash-elastichsearch-kibana/
• https://springframework.guru/using-logback-spring-boot/
• https://github.com/logstash/logstash-logback-encoder
• https://spring.io/guides/gs/scheduling-tasks/