log sink Log Sink

Provided by: "Apache Software Foundation"

Support Level for this Kamelet is: "Preview"

A sink that logs all data that it receives, useful for debugging purposes.

Configuration Options

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

Property Name Description Type Default Example

showHeaders

Show Headers

Show the headers received

boolean

false

showStreams

Show Streams

Show the stream bodies (they may not be available in following steps)

boolean

false
Fields marked with (*) are mandatory.

Usage

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

Knative Sink

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

log-sink-binding.yaml
apiVersion: camel.apache.org/v1alpha1
kind: KameletBinding
metadata:
  name: log-sink-binding
spec:
  source:
    ref:
      kind: Channel
      apiVersion: messaging.knative.dev/v1
      name: mychannel
  sink:
    ref:
      kind: Kamelet
      apiVersion: camel.apache.org/v1alpha1
      name: log-sink

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

Save the log-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 log-sink-binding.yaml

Dependencies

The Kamelet needs the following dependencies:

  • camel:kamelet

  • camel:log

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 log-sink

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

Kafka Sink

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

log-sink-binding.yaml
apiVersion: camel.apache.org/v1alpha1
kind: KameletBinding
metadata:
  name: log-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: log-sink

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 log-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 log-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 log-sink

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/log-sink.kamelet.yaml

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