Chapter 3. Creating a Docker image from the Kafka Connect base image

Procedure

1. Create a new Dockerfile using registry.redhat.io/amq7/amq-streams-kafka-23:1.3.0 as the base image:

   FROM registry.redhat.io/amq7/amq-streams-kafka-23:1.3.0
   USER root:root
   COPY ./my-plugins/ /opt/kafka/plugins/
   USER jboss:jboss

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2. Build the container image.

   docker build -t my-new-container-image:latest

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3. Push your custom image to your container registry.

   docker push my-new-container-image:latest

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4. Point to the new container image.

   You can either:

   • Edit the KafkaConnect.spec.image property of the KafkaConnect custom resource.

     If set, this property overrides the STRIMZI_DEFAULT_KAFKA_CONNECT_IMAGE variable in the Cluster Operator.

     apiVersion: kafka.strimzi.io/v1beta1
     kind: KafkaConnect
     metadata:
       name: my-connect-cluster
     spec:
       #...
       image: my-new-container-image

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     or

   • In the install/cluster-operator/050-Deployment-strimzi-cluster-operator.yaml file, edit the STRIMZI_DEFAULT_KAFKA_CONNECT_IMAGE variable to point to the new container image and reinstall the Cluster Operator. If you edit this file you will need to apply it to your OpenShift cluster.