Docker

Pass custom Java opts

By default, the docker container will allow a custom JVM options setting the environments vars JAVA_OPTS. For example, if you want to change the default timezone, just add -e "JAVA_OPTS=-Duser.timezone=Europe/Paris"

Run with another jvm.options file

By default, the docker container will run with a jvm.optionsopen in new window file, you can override it with your own with an Environment Variable. With the JVM_OPTS_FILE environment variable, you can override the jvm.options file by passing the path of your file instead.

Override the JVM_OPTS_FILE with docker run:

docker run -d \
    --env JVM_OPTS_FILE={{path-of-your-jvm.options-file}}
    -p 8080:8080 \
    -v /tmp/application.yml:/app/application.yml \
    tchiotludo/akhq
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Override the JVM_OPTS_FILE with docker-compose:

version: '3.7'
services:
  akhq:
    image: tchiotludo/akhq-jvm:dev
    environment:
      JVM_OPTS_FILE: /app/jvm.options
    ports:
      - "8080:8080"
    volumes:
      - /tmp/application.yml:/app/application.yml
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If you do not override the JVM_OPTS_FILE, the docker container will take the defaults one instead.

The AKHQ docker image supports 4 environment variables to handle configuration :

  • AKHQ_CONFIGURATION: a string that contains the full configuration in yml that will be written on /app/configuration.yml on the container.
  • MICRONAUT_APPLICATION_JSON: a string that contains the full configuration in JSON format
  • MICRONAUT_CONFIG_FILES: a path to a configuration file in the container. Default path is /app/application.yml
  • CLASSPATH: additional Java classpath entries. Must be used to specify the location of the TIBCO Avro client library jar if a 'tibco' schema registry type is used

How to mount configuration file

Take care when you mount configuration files to not remove akhq files located on /app. You need to explicitly mount the /app/application.yml and not mount the /app directory. This will remove the AKHQ binaries and give you this error: /usr/local/bin/docker-entrypoint.sh: 9: exec: ./akhq: not found

volumeMounts:
- mountPath: /app/application.yml
  subPath: application.yml
  name: config
  readOnly: true

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