Environment variables prefixed with CONNECTOR
are used to create a connector properties file. Environment variables beginning with CONNECT
are used to create the properties file for the Kafka Connect Cluster. The Connector properties file is then pushed via DataMountaineers Connect CLI to the Connect workers API once it's up to start the connector.
The expected use case is that the Connect Worker joins with other pods deployed via Helm to form a Connect Cluster for a specific instance of one connector only. It can only post in a configuration for one type based on the environment variables.
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Helm charts are available for deployment into Kubernetes.
For example:
docker run \
-e CONNECT_REST_PORT=8083 \
-e CONNECT_GROUP_ID="test" \
-e CONNECT_STATUS_STORAGE_TOPIC="tes" \
-e CONNECT_CONFIG_STORAGE_TOPIC="test" \
-e CONNECT_OFFSET_STORAGE_TOPIC="test2" \
-e CONNECT_BOOTSTRAP_SERVERS="kafka-1:9092" \
-e CONNECT_KEY_CONVERTER="io.confluent.connect.avro.AvroConverter" \
-e CONNECT_VALUE_CONVERTER="io.confluent.connect.avro.AvroConverter" \
-e CONNECT_INTERNAL_KEY_CONVERTER="org.apache.kafka.connect.json.JsonConverter" \
-e CONNECT_INTERNAL_VALUE_CONVERTER="org.apache.kafka.connect.json.JsonConverter" \
-e CONNECT_REST_ADVERTISED_HOST_NAME="blat" \
-e CONNECT_KEY_CONVERTER_SCHEMA_REGISTRY_URL="http://sr-0:8081" \
-e CONNECT_VALUE_CONVERTER_SCHEMA_REGISTRY_URL="http://sr-0:8081" \
-e CONNECTOR_CONNECTOR_CLASS="com.datamountaineer.streamreactor.connect.elastic.ElasticSinkConnector" \
-e CONNECTOR_NAME="elasticsearch-sink-orders" \
-e CONNECTOR_TASKS_MAX=1 \
-e CONNECTOR_CONNECT_ELASTIC_SINK_KCQL="INSERT INTO index_1 SELECT * FROM orders-topic" \
-e CONNECTOR_TOPICS="topic_consumer_logs" \
-e CONNECTOR_CONNECT_ELASTIC_URL="http://elastic_url" \
-e CONNECTOR_CONNECT_ELASTIC_CLUSTER_NAME="elasticsearch" \
datamountaineer/kafka-connect-elastic:1.1.0