Confluent Schema Registry

Start up the components:

docker-compose up -d

Component Check

Let's check the Zookeeper Shell on the Zookeeper host:

docker-compose exec zookeeper zookeeper-shell localhost:2181

get /controller
{"version":2,"brokerid":1,"timestamp":"1689018188126","kraftControllerEpoch":-1}

curl -s -XGET localhost:8082/v3/clusters | jq

curl -s -XGET localhost:8082/topics | jq

curl -s -XGET http:https://localhost:8081/schemas/types | jq

Let's run V1 of our application:

cd confluent-schema-registry-v1
./gradlew clean
./gradlew generateAvroJava
./gradlew run

Now let's run V2 of our application:

cd ../confluent-schema-registry-v2
./gradlew clean
./gradlew generateAvroJava
./gradlew run

If we're viewing the topic in C3 (http:https://localhost:9021/), we should see both versions of the message in our avro-application-test-topic:

And if you go to the Schema tab, you should see the two versions of the Schema:

Name		Name	Last commit message	Last commit date
Latest commit History 13 Commits
confluent-schema-registry-v1		confluent-schema-registry-v1
confluent-schema-registry-v2		confluent-schema-registry-v2
img		img
.env		.env
.gitignore		.gitignore
README.md		README.md
docker-compose.yaml		docker-compose.yaml