Chapter 37. MariaDB Sink

Send data to a MariaDB Database.

This Kamelet expects a JSON as body. The mapping between the JSON fields and parameters is done by key, so if you have the following query:

'INSERT INTO accounts (username,city) VALUES (:#username,:#city)'

The Kamelet needs to receive as input something like:

'{ "username":"oscerd", "city":"Rome"}'

37.1. Configuration Options

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

PropertyNameDescriptionTypeDefaultExample

databaseName *

Database Name

The Database Name we are pointing

string

  

password *

Password

The password to use for accessing a secured MariaDB Database

string

  

query *

Query

The Query to execute against the MariaDB Database

string

 

"INSERT INTO accounts (username,city) VALUES (:#username,:#city)"

serverName *

Server Name

Server Name for the data source

string

 

"localhost"

username *

Username

The username to use for accessing a secured MariaDB Database

string

  

serverPort

Server Port

Server Port for the data source

string

3306

 
Note

Fields marked with an asterisk (*) are mandatory.

37.2. Dependencies

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

  • camel:jackson
  • camel:kamelet
  • camel:sql
  • mvn:org.apache.commons:commons-dbcp2:2.7.0.redhat-00001
  • mvn:org.mariadb.jdbc:mariadb-java-client

37.3. Usage

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

37.3.1. Knative Sink

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

mariadb-sink-binding.yaml

apiVersion: camel.apache.org/v1alpha1
kind: KameletBinding
metadata:
  name: mariadb-sink-binding
spec:
  source:
    ref:
      kind: Channel
      apiVersion: messaging.knative.dev/v1
      name: mychannel
  sink:
    ref:
      kind: Kamelet
      apiVersion: camel.apache.org/v1alpha1
      name: mariadb-sink
    properties:
      databaseName: "The Database Name"
      password: "The Password"
      query: "INSERT INTO accounts (username,city) VALUES (:#username,:#city)"
      serverName: "localhost"
      username: "The Username"

37.3.1.1. Prerequisite

Make sure you have "Red Hat Integration - Camel K" installed into the OpenShift cluster you’re connected to.

37.3.1.2. Procedure for using the cluster CLI

  1. Save the mariadb-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: 

    oc apply -f mariadb-sink-binding.yaml

37.3.1.3. Procedure for using the Kamel CLI

Configure and run the sink by using the following command: 

kamel bind channel:mychannel mariadb-sink -p "sink.databaseName=The Database Name" -p "sink.password=The Password" -p "sink.query=INSERT INTO accounts (username,city) VALUES (:#username,:#city)" -p "sink.serverName=localhost" -p "sink.username=The Username"

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

37.3.2. Kafka Sink

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

mariadb-sink-binding.yaml

apiVersion: camel.apache.org/v1alpha1
kind: KameletBinding
metadata:
  name: mariadb-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: mariadb-sink
    properties:
      databaseName: "The Database Name"
      password: "The Password"
      query: "INSERT INTO accounts (username,city) VALUES (:#username,:#city)"
      serverName: "localhost"
      username: "The Username"

37.3.2.1. Prerequisites

Ensure that you’ve installed the AMQ Streams operator in your OpenShift cluster and created a topic named my-topic in the current namespace. Make also sure you have "Red Hat Integration - Camel K" installed into the OpenShift cluster you’re connected to.

37.3.2.2. Procedure for using the cluster CLI

  1. Save the mariadb-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: 

    oc apply -f mariadb-sink-binding.yaml

37.3.2.3. 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 mariadb-sink -p "sink.databaseName=The Database Name" -p "sink.password=The Password" -p "sink.query=INSERT INTO accounts (username,city) VALUES (:#username,:#city)" -p "sink.serverName=localhost" -p "sink.username=The Username"

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

37.4. Kamelet source file

https://github.com/openshift-integration/kamelet-catalog/tree/kamelet-catalog-1.8//mariadb-sink.kamelet.yaml