Chapter 40. MongoDB Sink

Send documents to MongoDB.

This Kamelet expects a JSON as body.

Properties you can set as headers:

  • db-upsert / ce-dbupsert: if the database should create the element if it does not exist. Boolean value.

40.1. Configuration Options

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

PropertyNameDescriptionTypeDefaultExample

collection *

MongoDB Collection

Sets the name of the MongoDB collection to bind to this endpoint.

string

  

database *

MongoDB Database

Sets the name of the MongoDB database to target.

string

  

hosts *

MongoDB Hosts

Comma separated list of MongoDB Host Addresses in host:port format.

string

  

createCollection

Collection

Create collection during initialisation if it doesn’t exist.

boolean

false

 

password

MongoDB Password

User password for accessing MongoDB.

string

  

username

MongoDB Username

Username for accessing MongoDB.

string

  

writeConcern

Write Concern

Configure the level of acknowledgment requested from MongoDB for write operations, possible values are ACKNOWLEDGED, W1, W2, W3, UNACKNOWLEDGED, JOURNALED, MAJORITY.

string

  
Note

Fields marked with an asterisk (*) are mandatory.

40.2. Dependencies

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

  • camel:kamelet
  • camel:mongodb
  • camel:jackson

40.3. Usage

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

40.3.1. Knative Sink

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

mongodb-sink-binding.yaml

apiVersion: camel.apache.org/v1alpha1
kind: KameletBinding
metadata:
  name: mongodb-sink-binding
spec:
  source:
    ref:
      kind: Channel
      apiVersion: messaging.knative.dev/v1
      name: mychannel
  sink:
    ref:
      kind: Kamelet
      apiVersion: camel.apache.org/v1alpha1
      name: mongodb-sink
    properties:
      collection: "The MongoDB Collection"
      database: "The MongoDB Database"
      hosts: "The MongoDB Hosts"

40.3.1.1. Prerequisite

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

40.3.1.2. Procedure for using the cluster CLI

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

40.3.1.3. Procedure for using the Kamel CLI

Configure and run the sink by using the following command:

kamel bind channel:mychannel mongodb-sink -p "sink.collection=The MongoDB Collection" -p "sink.database=The MongoDB Database" -p "sink.hosts=The MongoDB Hosts"

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

40.3.2. Kafka Sink

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

mongodb-sink-binding.yaml

apiVersion: camel.apache.org/v1alpha1
kind: KameletBinding
metadata:
  name: mongodb-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: mongodb-sink
    properties:
      collection: "The MongoDB Collection"
      database: "The MongoDB Database"
      hosts: "The MongoDB Hosts"

40.3.2.1. 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.

40.3.2.2. Procedure for using the cluster CLI

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

40.3.2.3. 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 mongodb-sink -p "sink.collection=The MongoDB Collection" -p "sink.database=The MongoDB Database" -p "sink.hosts=The MongoDB Hosts"

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

40.4. Kamelet source file

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