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changes.mady.by.user Arpit Agarwal

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changes.mady.by.user Marton Elek

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Code Block
languageyml
themeRDark
version: "3"
services:
 datanode:
    image: apache/hadoop-runner
    volumes:
      - ../../ozone:/opt/hadoop
    ports:
      - 9864
    command: ["/opt/hadoop/bin/ozone","datanode"]
    env_file:
      - ./docker-config
  ozoneManager:
    image: apache/hadoop-runner
    volumes:
      - ../../ozone:/opt/hadoop
    ports:
      - 9874:9874
    environment:
      ENSURE_OM_INITIALIZED: /data/metadata/ozoneManager/current/VERSION
    env_file:
      - ./docker-config
    command: ["/opt/hadoop/bin/ozone","om"]
 scm:
   image: apache/hadoop-runner
   volumes:
     - ../../ozone:/opt/hadoop
   ports:
     - 9876:9876
   env_file:
     - ./docker-config
   environment:
     ENSURE_SCM_INITIALIZED: /data/metadata/scm/current/VERSION
   command: ["/opt/hadoop/bin/ozone","scm"]

...

* Storage Container Manager: http://localhost:9876/ 
* Key Space Manager: http://localhost:9874/
* Datanode: please check the ports with docker ps as each datanode has different port from the ephemeral port range (to avoid port conflicts in case of multiple datanodes)

...

  1. The containers could be configured by environment variables. We just moved out the env definitions to an external file to avoid duplication.

  2. For more detailed explanation of the Configuration variables see the OzoneConfiguration page.

  3. The flokkr base image contains a simple script to convert environment variables to files, based on naming convention. All of the environment variables will be converted to traditional Hadoop config XMLs or  log4j configuration files