google pubsub sink Google Pubsub Sink

Provided by: "Apache Software Foundation"

Support Level for this Kamelet is: "Preview"

Send messages to Google Pubsub.

The serviceAccountKey property needs to be encoded in base64, so when you pass it as parameter, don’t forget to encode it.

Configuration Options

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

Property Name Description Type Default Example

destinationName *

Destination Name

The Destination Name

string

projectId *

Project Id

The Google Cloud PubSub Project Id

string

serviceAccountKey *

Service Account Key

The Service account key that can be used as credentials for the PubSub publisher/subscriber

binary
Fields marked with (*) are mandatory.

Usage

This section summarizes how the google-pubsub-sink can be used in various contexts.

Knative Sink

The google-pubsub-sink Kamelet can be used as Knative sink by binding it to a Knative object.

google-pubsub-sink-binding.yaml
apiVersion: camel.apache.org/v1alpha1
kind: KameletBinding
metadata:
  name: google-pubsub-sink-binding
spec:
  source:
    ref:
      kind: Channel
      apiVersion: messaging.knative.dev/v1
      name: mychannel
  sink:
    ref:
      kind: Kamelet
      apiVersion: camel.apache.org/v1alpha1
      name: google-pubsub-sink
    properties:
      destinationName: "The Destination Name"
      projectId: "The Project Id"
      serviceAccountKey: "The Service Account Key"

Make sure you have Camel K installed into the Kubernetes cluster you’re connected to.

Save the google-pubsub-sink-binding.yaml file into your hard drive, then configure it according to your needs.

You can run the sink using the following command:

kubectl apply -f google-pubsub-sink-binding.yaml

Dependencies

The Kamelet needs the following dependencies:

  • camel:kamelet

  • camel:google-pubsub

  • camel:jackson

Binding to Knative using the Kamel CLI:

The procedure described above can be simplified into a single execution of the kamel bind command:

kamel bind channel:mychannel google-pubsub-sink -p "sink.destinationName=The Destination Name" -p "sink.projectId=The Project Id" -p "sink.serviceAccountKey=The Service Account Key"

This will create the KameletBinding under the hood and apply it to the current namespace in the cluster.

Kafka Sink

The google-pubsub-sink Kamelet can be used as Kafka sink by binding it to a Kafka topic.

google-pubsub-sink-binding.yaml
apiVersion: camel.apache.org/v1alpha1
kind: KameletBinding
metadata:
  name: google-pubsub-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: google-pubsub-sink
    properties:
      destinationName: "The Destination Name"
      projectId: "The Project Id"
      serviceAccountKey: "The Service Account Key"

Ensure that you’ve installed Strimzi and created a topic named my-topic in the current namespace. Make also sure you have Camel K installed into the Kubernetes cluster you’re connected to.

Save the google-pubsub-sink-binding.yaml file into your hard drive, then configure it according to your needs.

You can run the sink using the following command:

kubectl apply -f google-pubsub-sink-binding.yaml

Binding to Kafka using the Kamel CLI:

The procedure described above can be simplified into a single execution of the kamel bind command:

kamel bind kafka.strimzi.io/v1beta1:KafkaTopic:my-topic google-pubsub-sink -p "sink.destinationName=The Destination Name" -p "sink.projectId=The Project Id" -p "sink.serviceAccountKey=The Service Account Key"

This will create the KameletBinding under the hood and apply it to the current namespace in the cluster.

Kamelet source file

Have a look at the following link:

https://github.com/apache/camel-kamelets/blob/main/google-pubsub-sink.kamelet.yaml

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