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README.md

DataHub MetadataChangeEvent (MCE) Consumer Docker Image

Docker Cloud Build Status

Refer to DataHub MCE Consumer Job to have a quick understanding of the architecture and responsibility of this service for the DataHub.

Build

docker image build -t keremsahin/datahub-mce-consumer -f docker/mce-consumer/Dockerfile .

This command will build and deploy the image in your local store.

Run container

cd docker/mce-consumer && docker-compose pull && docker-compose up

This command will start the container. If you have the image available in your local store, this image will be used for the container otherwise it will download the latest image from Docker Hub and then start that.

Container configuration

Docker Network

All Docker containers for DataHub are supposed to be on the same Docker network which is datahub_network. If you change this, you will need to change this for all other Docker containers as well.

networks:
  default:
    name: datahub_network

Kafka and DataHub GMS Containers

Before starting datahub-mce-consumer container, datahub-gms and kafka containers should already be up and running. These connections are configured via environment variables in docker-compose.yml:

environment:
  - KAFKA_BOOTSTRAP_SERVER=broker:29092
  - KAFKA_SCHEMAREGISTRY_URL=http://schema-registry:8081

The value of KAFKA_BOOTSTRAP_SERVER variable should be set to the host name of the kafka broker container within the Docker network. The value of KAFKA_SCHEMAREGISTRY_URL variable should be set to the host name of the kafka schema registry container within the Docker network.

environment:
  - GMS_HOST=datahub-gms
  - GMS_PORT=8080

The value of GMS_HOST variable should be set to the host name of the datahub-gms container within the Docker network.