Thomas-Mildner / ELK-Logger

Java Demo Application with Log4J and ELK Stack

ELK Log4J Logger

Description

• Logging Java-SpringBoot-Application with log4j
• Configuration over external log4j2.xml in src/resources
• Log JSON to filesystem mounted as Volume in Docker-Compose
• Read logs with filebeat from mounted Volume
• Push logs to started elasticsearch
• Visualize the logfiles with kibana

Requirements

• Docker
• Docker Compose

Build it on your own

1. Run docker-compose up -d. This will build the example-application and start filebeat + elasticsearch.
2. Call http://localhost:8080/helloWorld Endpoint to generate log entries.
3. Call http://localhost:5601 with your browser.
4. Add index "filebeat-*" in Kibana.
5. Visualize LogFiles in Kibana.

Using PreBuild Image

A prebuild image is located at: docker pull vvthromildner/java-elk-logger:latest

1. Run docker-compose -f docker-compose-prod.yml up -d. Use the prebuild DockerHub Image and start filebeat with ELK Stack.
2. Call http://localhost:8080/helloWorld Endpoint to generate log entries.
3. Call http://localhost:5601 with your browser.
4. Add index "filebeat-*" in Kibana. --> http://localhost:5601/app/management/kibana/indexPatterns
5. Visualize LogFiles in Kibana. --> http://localhost:5601/app/discover#/

Kibana

http://localhost:5601/app/discover#/?_g=(filters:!(),refreshInterval:(pause:!t,value:0),time:(from:now-5m,to:now))&_a=(columns:!(),filters:!(),index:'92825bc0-a04f-11ec-98f8-ab7971fbdb04',interval:auto,query:(language:kuery,query:%22INFO%22),sort:!(!('@timestamp',desc)))