Support strimzi.io kafka and docker image about pubsub

[hitk6]

apiVersion: kafka.strimzi.io/v1beta2
kind: KafkaConnect
metadata:
  name: kafka-connect
  annotations:
    strimzi.io/use-connector-resources: "true"
spec:
  version: 3.0.0
  replicas: 1
  bootstrapServers: kafka1-cluster-kafka-bootstrap:9093
  tls:
    trustedCertificates:
      - secretName: kafka1-cluster-cluster-ca-cert
        certificate: ca.crt
  authentication:
    type: tls
    certificateAndKey:
      secretName: kafka-int-tls
      certificate: user.crt
      key: user.key
  config:
    group.id: connect-cluster
    offset.storage.topic: connect-cluster-offsets
    config.storage.topic: connect-cluster-configs
    status.storage.topic: connect-cluster-status
    key.converter: org.apache.kafka.connect.json.JsonConverter 
    value.converter: org.apache.kafka.connect.json.JsonConverter
    # key.converter.schemas.enable: true
    # value.converter.schemas.enable: true
    config.providers: directory
    config.providers.directory.class: org.apache.kafka.common.config.provider.DirectoryConfigProvider
  build:
    output:
      type: docker
      image: asia.gcr.io/my-gcp-project-name/kafka-connect:latest # will auto create and push the image to gcr with this name
      pushSecret: docker-credentials
    plugins:
      - name: gcp-bigquery
        artifacts:
          - type: jar
            url: https://github.com/GoogleCloudPlatform/pubsub/releases/download/v0.11-alpha/pubsub-kafka-connector.jar
            sha512sum: ee07f6334f5ea77d39689b0e764aaf32f9324ad90811bfe41c5039cd212bbd715e913bc7c9a8c3157b0f91726e1b2aba6b7e53bfacb5e558eeab870c6dc6f60e


---
# gcloud auth print-access-token | docker login -u oauth2accesstoken --password-stdin https://asia.gcr.io 
# OR
# cat keyfile.json | docker login -u _json_key --password-stdin https://asia.gcr.io

# kubectl create secret generic docker-credentials --from-file=.dockerconfigjson=~/.docker/config.json --type=kubernetes.io/dockerconfigjson

apiVersion: v1
kind: Secret
metadata:
  name: docker-credentials
  labels:
    app: connect
  namespace: kafka
type: kubernetes.io/dockerconfigjson
data:
  .dockerconfigjson: ewogICJ0eXBlIjogInNlcnZpY2Vf # your docker config file in base64 encoded, I have given two commads above to generate this secret. Srimzi Doc link: https://strimzi.io/docs/operators/latest/deploying.html#creating-new-image-using-kafka-connect-build-str

Strimzi kafka connector resource

apiVersion: kafka.strimzi.io/v1beta2
kind: KafkaConnector
metadata:
  name: source-pubsub
  labels:
    strimzi.io/cluster: kafka-connect
spec:
  class: com.google.pubsub.kafka.source.CloudPubSubSourceConnector
  tasksMax: 2
  config:
    cps.project: my-gcp-project-name
    cps.subscription: test-topic-sub # pubsub subscription name
    kafka.topic: topic2 # kafka topic name where messages will be consumed

Now when i consume messages from kafka cluster they look like this.

$ ./bin/kafka-console-consumer.sh --bootstrap-server kafka1-cluster-kafka-bootstrap:9097 --topic topic2 --from-beginning --consumer.config /tmp/config.properties 

{"schema":{"type":"struct","fields":[{"type":"bytes","optional":false,"field":"message"},{"type":"string","optional":false,"field":"_stream"},{"type":"string","optional":false,"field":"_namespace"}],"optional":false},"payload":{"message":"eyJfYWlyYnl0ZV9hYl9pZCI6IjA1YjA3MzgxLWE2NmEtNDMwOC05Mjg0LWU1ZTBiZjk4NmYxNyIsIl9haXJieXRlX2RhdGEiOnsic2Vzc2lvbl9kYXRlIjoiMjAyMS0xMi0xM1QwMDowMDowMFoiLCJjb3VudHJ5IjoiSW5kaWEiLCJjaXR5IjoiSmFpcHVyIiwic2Vzc2lvbl9jb3VudCI6MzI2NTM3fSwiX2FpcmJ5dGVfZW1pdHRlZF9hdCI6MTY0MzIxNDY5NzU1NX0","_stream":"pb_test_table","_namespace":"behaviour_us"}}

Next challenge is to decode the base64 encoded payload received from pubsub OR is there any way to directly receive base64 decoded json payload.
On the plus note - Able to receive messages in kafka from pubsub.

[zbloss]

Was there ever a solution to this?