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Chapter 34. Log Sink

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

34.1. Configuration Options
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The following table summarizes the configuration options available for the log-sink Kamelet:

Expand
PropertyNameDescriptionTypeDefaultExample

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

 
Note

Fields marked with an asterisk (*) are mandatory.

34.2. Dependencies
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At runtime, the log-sink Kamelet relies upon the presence of the following dependencies:

  • camel:kamelet
  • camel:log

34.3. Usage
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This section describes how you can use the log-sink.

34.3.1. Knative Sink
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You can use the log-sink Kamelet as a 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
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34.3.1.1. Prerequisite
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Make sure you have "Red Hat Integration - Camel K" installed into the OpenShift cluster you’re connected to.

34.3.1.2. Procedure for using the cluster CLI
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  1. Save the log-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 log-sink-binding.yaml
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34.3.1.3. Procedure for using the Kamel CLI
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Configure and run the sink by using the following command: 

kamel bind channel:mychannel log-sink
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This command creates the KameletBinding in the current namespace on the cluster.

34.3.2. Kafka Sink
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You can use the log-sink Kamelet as a 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
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34.3.2.1. Prerequisites
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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.

34.3.2.2. Procedure for using the cluster CLI
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  1. Save the log-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 log-sink-binding.yaml
    Copy to Clipboard Toggle word wrap

34.3.2.3. Procedure for using the Kamel CLI
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Configure and run the sink by using the following command: 

kamel bind kafka.strimzi.io/v1beta1:KafkaTopic:my-topic log-sink
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This command creates the KameletBinding in the current namespace on the cluster.

34.4. Kamelet source file
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https://github.com/openshift-integration/kamelet-catalog/blob/kamelet-catalog-1.6/log-sink.kamelet.yaml

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