nats sink NATS Sink

Provided by: "Apache Software Foundation"

Support Level for this Kamelet is: "Preview"

Send data to NATS topics.

Configuration Options

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

Property Name Description Type Default Example

servers *

Servers

Comma separated list of NATS Servers

string

topic *

Topic

NATS Topic name

string

Fields marked with an asterisk (*) are mandatory.

Dependencies

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

  • camel:nats

  • camel:kamelet

Usage

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

Knative Sink

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

nats-sink-binding.yaml
apiVersion: camel.apache.org/v1alpha1
kind: KameletBinding
metadata:
  name: nats-sink-binding
spec:
  source:
    ref:
      kind: Channel
      apiVersion: messaging.knative.dev/v1
      name: mychannel
  sink:
    ref:
      kind: Kamelet
      apiVersion: camel.apache.org/v1alpha1
      name: nats-sink
    properties:
      servers: "The Servers"
      topic: "The Topic"

Prerequisite

You have Camel K installed on the cluster.

Procedure for using the cluster CLI

  1. Save the nats-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 nats-sink-binding.yaml

Procedure for using the Kamel CLI

Configure and run the sink by using the following command:

kamel bind channel:mychannel nats-sink -p "sink.servers=The Servers" -p "sink.topic=The Topic"

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

Kafka Sink

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

nats-sink-binding.yaml
apiVersion: camel.apache.org/v1alpha1
kind: KameletBinding
metadata:
  name: nats-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: nats-sink
    properties:
      servers: "The Servers"
      topic: "The Topic"

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 nats-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 nats-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 nats-sink -p "sink.servers=The Servers" -p "sink.topic=The Topic"

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