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Chapter 30. Insert Header Action

Adds an header with a constant value to the message in transit

30.1. Configuration Options
링크 복사

The following table summarizes the configuration options available for the insert-header-action Kamelet:

Expand
PropertyNameDescriptionTypeDefaultExample

name *

Name

The name of the header to be added. For Knative only, the name of the header requires a CloudEvent (ce-) prefix.

string

  

value *

Value

The value of the header

string

  
Note

Fields marked with an asterisk (*) are mandatory.

30.2. Dependencies
링크 복사

At runtime, the insert-header-action Kamelet relies upon the presence of the following dependencies:

  • camel:core
  • camel:kamelet

30.3. Usage
링크 복사

This section describes how you can use the insert-header-action.

30.3.1. Knative Action
링크 복사

You can use the insert-header-action Kamelet as an intermediate step in a Knative binding.

insert-header-action-binding.yaml

apiVersion: camel.apache.org/v1alpha1
kind: KameletBinding
metadata:
  name: insert-header-action-binding
spec:
  source:
    ref:
      kind: Kamelet
      apiVersion: camel.apache.org/v1alpha1
      name: timer-source
    properties:
      message: "Hello"
  steps:
  - ref:
      kind: Kamelet
      apiVersion: camel.apache.org/v1alpha1
      name: insert-header-action
    properties:
      name: "The Name"
      value: "The Value"
  sink:
    ref:
      kind: Channel
      apiVersion: messaging.knative.dev/v1
      name: mychannel
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30.3.1.1. Prerequisite
링크 복사

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

30.3.1.2. Procedure for using the cluster CLI
링크 복사

  1. Save the insert-header-action-binding.yaml file to your local drive, and then edit it as needed for your configuration.

  2. Run the action by using the following command: 

    oc apply -f insert-header-action-binding.yaml
    Copy to Clipboard Toggle word wrap

30.3.1.3. Procedure for using the Kamel CLI
링크 복사

Configure and run the action by using the following command: 

kamel bind timer-source?message=Hello --step insert-header-action -p "step-0.name=The Name" -p "step-0.value=The Value" channel:mychannel
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This command creates the KameletBinding in the current namespace on the cluster.

30.3.2. Kafka Action
링크 복사

You can use the insert-header-action Kamelet as an intermediate step in a Kafka binding.

insert-header-action-binding.yaml

apiVersion: camel.apache.org/v1alpha1
kind: KameletBinding
metadata:
  name: insert-header-action-binding
spec:
  source:
    ref:
      kind: Kamelet
      apiVersion: camel.apache.org/v1alpha1
      name: timer-source
    properties:
      message: "Hello"
  steps:
  - ref:
      kind: Kamelet
      apiVersion: camel.apache.org/v1alpha1
      name: insert-header-action
    properties:
      name: "The Name"
      value: "The Value"
  sink:
    ref:
      kind: KafkaTopic
      apiVersion: kafka.strimzi.io/v1beta1
      name: my-topic
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30.3.2.1. Prerequisites
링크 복사

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.

30.3.2.2. Procedure for using the cluster CLI
링크 복사

  1. Save the insert-header-action-binding.yaml file to your local drive, and then edit it as needed for your configuration.

  2. Run the action by using the following command: 

    oc apply -f insert-header-action-binding.yaml
    Copy to Clipboard Toggle word wrap

30.3.2.3. Procedure for using the Kamel CLI
링크 복사

Configure and run the action by using the following command: 

kamel bind timer-source?message=Hello --step insert-header-action -p "step-0.name=The Name" -p "step-0.value=The Value" kafka.strimzi.io/v1beta1:KafkaTopic:my-topic
Copy to Clipboard Toggle word wrap

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

30.4. Kamelet source file
링크 복사

https://github.com/openshift-integration/kamelet-catalog/insert-header-action.kamelet.yaml

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