kafka sink Kafka Sink

Provided by: "Apache Software Foundation"

Support Level for this Kamelet is: "Preview"

Send data to Kafka topics.

The Kamelet is able to understand the following headers to be set:

  • key / ce-key: as message key

  • partition-key / ce-partitionkey: as message partition key

Both the headers are optional.

Configuration Options

The following table summarizes the configuration options available for the kafka-sink Kamelet:

Property Name Description Type Default Example

bootstrapServers *

Brokers

Comma separated list of Kafka Broker URLs

string

password *

Password

Password to authenticate to kafka

string

topic *

Topic Names

Comma separated list of Kafka topic names

string

user *

Username

Username to authenticate to Kafka

string

saslMechanism

SASL Mechanism

The Simple Authentication and Security Layer (SASL) Mechanism used.

string

"PLAIN"

securityProtocol

Security Protocol

Protocol used to communicate with brokers. SASL_PLAINTEXT, PLAINTEXT, SASL_SSL and SSL are supported

string

"SASL_SSL"

Fields marked with an asterisk (*) are mandatory.

Dependencies

At runtime, the kafka-sink Kamelet relies upon the presence of the following dependencies:

  • camel:kafka

  • camel:kamelet

Usage

This section describes how you can use the kafka-sink.

Knative Sink

You can use the kafka-sink Kamelet as a Knative sink by binding it to a Knative object.

kafka-sink-binding.yaml
apiVersion: camel.apache.org/v1alpha1
kind: KameletBinding
metadata:
  name: kafka-sink-binding
spec:
  source:
    ref:
      kind: Channel
      apiVersion: messaging.knative.dev/v1
      name: mychannel
  sink:
    ref:
      kind: Kamelet
      apiVersion: camel.apache.org/v1alpha1
      name: kafka-sink
    properties:
      bootstrapServers: "The Brokers"
      password: "The Password"
      topic: "The Topic Names"
      user: "The Username"

Prerequisite

You have Camel K installed on the cluster.

Procedure for using the cluster CLI

  1. Save the kafka-sink-binding.yaml file to your local drive, and then edit it as needed for your configuration.

  2. Run the sink by using the following command:

    kubectl apply -f kafka-sink-binding.yaml

Procedure for using the Kamel CLI

Configure and run the sink by using the following command:

kamel bind channel:mychannel kafka-sink -p "sink.bootstrapServers=The Brokers" -p "sink.password=The Password" -p "sink.topic=The Topic Names" -p "sink.user=The Username"

This command creates the KameletBinding in the current namespace on the cluster.

Kafka Sink

You can use the kafka-sink Kamelet as a Kafka sink by binding it to a Kafka topic.

kafka-sink-binding.yaml
apiVersion: camel.apache.org/v1alpha1
kind: KameletBinding
metadata:
  name: kafka-sink-binding
spec:
  source:
    ref:
      kind: KafkaTopic
      apiVersion: kafka.strimzi.io/v1beta1
      name: my-topic
  sink:
    ref:
      kind: Kamelet
      apiVersion: camel.apache.org/v1alpha1
      name: kafka-sink
    properties:
      bootstrapServers: "The Brokers"
      password: "The Password"
      topic: "The Topic Names"
      user: "The Username"

Prerequisites

  • You’ve installed Strimzi.

  • You’ve created a topic named my-topic in the current namespace.

  • You have Camel K installed on the cluster.

Procedure for using the cluster CLI

  1. Save the kafka-sink-binding.yaml file to your local drive, and then edit it as needed for your configuration.

  2. Run the sink by using the following command:

    kubectl apply -f kafka-sink-binding.yaml

Procedure for using the Kamel CLI

Configure and run the sink by using the following command:

kamel bind kafka.strimzi.io/v1beta1:KafkaTopic:my-topic kafka-sink -p "sink.bootstrapServers=The Brokers" -p "sink.password=The Password" -p "sink.topic=The Topic Names" -p "sink.user=The Username"

This command creates the KameletBinding in the current namespace on the cluster.