Chapter 87. Build schema reference

Using Docker registry

To use a Docker registry, you have to specify the type as docker, and the image field with the full name of the new container image. The full name must include:

Example output configuration

apiVersion: kafka.strimzi.io/v1beta2
kind: KafkaConnect
metadata:
  name: my-connect-cluster
spec:
  #...
  build:
    output:
      type: docker 1
      image: my-registry.io/my-org/my-connect-cluster:latest 2
      pushSecret: my-registry-credentials 3
  #...

Using OpenShift ImageStream

Instead of Docker, you can use OpenShift ImageStream to store a new container image. The ImageStream has to be created manually before deploying Kafka Connect. To use ImageStream, set the type to imagestream, and use the image property to specify the name of the ImageStream and the tag used. For example, my-connect-image-stream:latest.

Example output configuration

apiVersion: kafka.strimzi.io/v1beta2
kind: KafkaConnect
metadata:
  name: my-connect-cluster
spec:
  #...
  build:
    output:
      type: imagestream 1
      image: my-connect-build:latest 2
  #...

Example plugins configuration with two connector plugins

apiVersion: kafka.strimzi.io/v1beta2
kind: KafkaConnect
metadata:
  name: my-connect-cluster
spec:
  #...
  build:
    output:
      #...
    plugins: 1
      - name: connector-1
        artifacts:
          - type: tgz
            url: <url_to_download_connector_1_artifact>
            sha512sum: <SHA-512_checksum_of_connector_1_artifact>
      - name: connector-2
        artifacts:
          - type: jar
            url: <url_to_download_connector_2_artifact>
            sha512sum: <SHA-512_checksum_of_connector_2_artifact>
  #...

Using JAR artifacts

JAR artifacts represent a JAR file that is downloaded and added to a container image. To use a JAR artifacts, set the type property to jar, and specify the download location using the url property.

Example JAR artifact

apiVersion: kafka.strimzi.io/v1beta2
kind: KafkaConnect
metadata:
  name: my-connect-cluster
spec:
  #...
  build:
    output:
      #...
    plugins:
      - name: my-plugin
        artifacts:
          - type: jar 1
            url: https://my-domain.tld/my-jar.jar 2
            sha512sum: 589...ab4 3
          - type: jar
            url: https://my-domain.tld/my-jar2.jar
  #...

Using TGZ artifacts

TGZ artifacts are used to download TAR archives that have been compressed using Gzip compression. The TGZ artifact can contain the whole Kafka Connect connector, even when comprising multiple different files. The TGZ artifact is automatically downloaded and unpacked by Streams for Apache Kafka while building the new container image. To use TGZ artifacts, set the type property to tgz, and specify the download location using the url property.

Example TGZ artifact

apiVersion: kafka.strimzi.io/v1beta2
kind: KafkaConnect
metadata:
  name: my-connect-cluster
spec:
  #...
  build:
    output:
      #...
    plugins:
      - name: my-plugin
        artifacts:
          - type: tgz 1
            url: https://my-domain.tld/my-connector-archive.tgz 2
            sha512sum: 158...jg10 3
  #...

Using ZIP artifacts

ZIP artifacts are used to download ZIP compressed archives. Use ZIP artifacts in the same way as the TGZ artifacts described in the previous section. The only difference is you specify type: zip instead of type: tgz.

Using Maven artifacts

maven artifacts are used to specify connector plugin artifacts as Maven coordinates. The Maven coordinates identify plugin artifacts and dependencies so that they can be located and fetched from a Maven repository.

Example Maven artifact

apiVersion: kafka.strimzi.io/v1beta2
kind: KafkaConnect
metadata:
  name: my-connect-cluster
spec:
  #...
  build:
    output:
      #...
    plugins:
      - name: my-plugin
        artifacts:
          - type: maven 1
            repository: https://mvnrepository.com 2
            group: <maven_group> 3
            artifact: <maven_artifact> 4
            version:  <maven_version_number> 5
  #...

Using other artifacts

other artifacts represent any kind of file that is downloaded and added to a container image. If you want to use a specific name for the artifact in the resulting container image, use the fileName field. If a file name is not specified, the file is named based on the URL hash.

Example other artifact

apiVersion: kafka.strimzi.io/v1beta2
kind: KafkaConnect
metadata:
  name: my-connect-cluster
spec:
  #...
  build:
    output:
      #...
    plugins:
      - name: my-plugin
        artifacts:
          - type: other  1
            url: https://my-domain.tld/my-other-file.ext  2
            sha512sum: 589...ab4  3
            fileName: name-the-file.ext  4
  #...