Cassandra Sink
Provided by: "Apache Software Foundation"
Support Level for this Kamelet is: "Stable"
Send data to an Apache Cassandra cluster.
This Kamelet expects JSON Array formatted data. The content of the JSON Array is 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 |
---|---|---|---|---|---|
Connection Host |
Required The hostname(s) for the Cassandra server(s). Use a comma to separate multiple hostnames. |
string |
localhost |
||
Connection Port |
Required The port number(s) of the cassandra server(s). Use a comma to separate multiple port numbers. |
string |
9042 |
||
Keyspace |
Required The keyspace to use. |
string |
customers |
||
Query |
Required The query to execute against the Cassandra cluster table. |
string |
|||
Consistency Level |
The consistency level to use. Set the value to one of these options - ANY, ONE, TWO, THREE, QUORUM, ALL, LOCAL_QUORUM, EACH_QUORUM, SERIAL, LOCAL_SERIAL, or LOCAL_ONE. |
string |
ANY |
||
Password |
The password for accessing a secured Cassandra cluster. |
string |
|||
Prepare Statements |
If true, specifies to use PreparedStatements as the query. If false, specifies to use regular Statements as the query. |
boolean |
true |
||
Username |
The username for accessing a secured Cassandra cluster. |
string |
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.
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
query: The Query
Prerequisite
You have Camel K installed on the cluster.
Procedure for using the cluster CLI
-
Save the
cassandra-sink-binding.yaml
file to your local drive, and then edit it as needed for your configuration. -
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.query=The Query" 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.
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
query: The Query
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
-
Save the
cassandra-sink-binding.yaml
file to your local drive, and then edit it as needed for your configuration. -
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.query=The Query" kafka.strimzi.io/v1beta1:KafkaTopic:my-topic
This command creates the KameletBinding in the current namespace on the cluster.