dns ip action DNS IP Action

Provided by: "Apache Software Foundation"

Support Level for this Kamelet is: "Preview"

Get an IP from a DNS

The Kamelet expects the following headers to be set:

  • domain / ce-domain: as the domain for which we are looking for the IP

If the header won’t be set the body will be used as domain to look for.

Configuration Options

The Kamelet does not specify any configuration option.

Usage

This section summarizes how the dns-ip-action can be used in various contexts.

Knative Action

The dns-ip-action Kamelet can be used as intermediate step in a Knative binding.

dns-ip-action-binding.yaml
apiVersion: camel.apache.org/v1alpha1
kind: KameletBinding
metadata:
  name: dns-ip-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: dns-ip-action
  sink:
    ref:
      kind: Channel
      apiVersion: messaging.knative.dev/v1
      name: mychannel

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

Save the dns-ip-action-binding.yaml file into your hard drive, then configure it according to your needs.

You can run the action using the following command:

kubectl apply -f dns-ip-action-binding.yaml

Dependencies

The Kamelet needs the following dependencies:

  • camel:dns

  • camel:kamelet

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 timer-source?message=Hello --step dns-ip-action channel:mychannel

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

Kafka Action

The dns-ip-action Kamelet can be used as intermediate step in a Kafka binding.

dns-ip-action-binding.yaml
apiVersion: camel.apache.org/v1alpha1
kind: KameletBinding
metadata:
  name: dns-ip-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: dns-ip-action
  sink:
    ref:
      kind: KafkaTopic
      apiVersion: kafka.strimzi.io/v1beta1
      name: my-topic

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 dns-ip-action-binding.yaml file into your hard drive, then configure it according to your needs.

You can run the action using the following command:

kubectl apply -f dns-ip-action-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 timer-source?message=Hello --step dns-ip-action kafka.strimzi.io/v1beta1:KafkaTopic:my-topic

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/dns-ip-action.kamelet.yaml

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