cassandra sink Cassandra Sink

Provided by: "Apache Software Foundation"

Support Level for this Kamelet is: "Preview"

Send data to a Cassandra Cluster.

This Kamelet expects the body as JSON Array. The content of the JSON Array will be used as input for the CQL Prepared Statement set in the query parameter.

Configuration Options

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

Property Name Description Type Default Example

connectionHost

Connection Host

Required Hostname(s) cassandra server(s). Multiple hosts can be separated by comma.

string

localhost

connectionPort

Connection Port

Required Port number of cassandra server(s).

string

9042

keyspace

Keyspace

Required Keyspace to use.

string

customers

password

Password

Required The password to use for accessing a secured Cassandra Cluster.

string

preparedStatement

Prepared Statement

Required The Prepared statement to execute against the Cassandra cluster table.

string

username

Username

Required The username to use for accessing a secured Cassandra Cluster.

string

consistencyLevel

Consistency Level

Consistency level to use. The value can be one of ANY, ONE, TWO, THREE, QUORUM, ALL, LOCAL_QUORUM, EACH_QUORUM, SERIAL, LOCAL_SERIAL, LOCAL_ONE.

string

ANY

Dependencies

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

  • camel:jackson

  • camel:kamelet

  • camel:cassandraql

Usage

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

Knative sink

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

cassandra-sink-binding.yaml
apiVersion: camel.apache.org/v1alpha1
kind: KameletBinding
metadata:
  name: cassandra-sink-binding
spec:
  source:
    ref:
      kind: Channel
      apiVersion: messaging.knative.dev/v1
      name: mychannel
  sink:
    ref:
      kind: Kamelet
      apiVersion: camel.apache.org/v1alpha1
      name: cassandra-sink
    properties:
      connectionHost: localhost
      connectionPort: 9042
      keyspace: customers
      password: The Password
      preparedStatement: The Prepared Statement
      username: The Username

Prerequisite

You have Camel K installed on the cluster.

Procedure for using the cluster CLI

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

Procedure for using the Kamel CLI

Configure and run the sink by using the following command:

kamel bind cassandra-sink -p "sink.connectionHost=localhost" -p "sink.connectionPort=9042" -p "sink.keyspace=customers" -p "sink.password=The Password" -p "sink.preparedStatement=The Prepared Statement" -p "sink.username=The Username" channel:mychannel

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

Kafka sink

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

cassandra-sink-binding.yaml
apiVersion: camel.apache.org/v1alpha1
kind: KameletBinding
metadata:
  name: cassandra-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: cassandra-sink
    properties:
      connectionHost: localhost
      connectionPort: 9042
      keyspace: customers
      password: The Password
      preparedStatement: The Prepared Statement
      username: 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 cassandra-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 cassandra-sink-binding.yaml

Procedure for using the Kamel CLI

Configure and run the sink by using the following command:

kamel bind cassandra-sink -p "sink.connectionHost=localhost" -p "sink.connectionPort=9042" -p "sink.keyspace=customers" -p "sink.password=The Password" -p "sink.preparedStatement=The Prepared Statement" -p "sink.username=The Username" kafka.strimzi.io/v1beta1:KafkaTopic:my-topic

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