AWS 2 MSK Component

Since Camel 3.1

Since Camel 3.1

Only producer is supported

The AWS MSK component supports create, run, start, stop and terminate AWS MSK instances.

Prerequisites

You must have a valid Amazon Web Services developer account, and be signed up to use Amazon MSK. More information is available at Amazon MSK.

The AWS2 MSK component is not supported in OSGI

URI Format

aws2-msk://label[?options]

You can append query options to the URI in the following format, ?options=value&option2=value&…​

URI Options

The AWS 2 MSK component supports 6 options, which are listed below.

Name Description Default Type

accessKey (producer)

Amazon AWS Access Key

String

lazyStartProducer (producer)

Whether the producer should be started lazy (on the first message). By starting lazy you can use this to allow CamelContext and routes to startup in situations where a producer may otherwise fail during starting and cause the route to fail being started. By deferring this startup to be lazy then the startup failure can be handled during routing messages via Camel’s routing error handlers. Beware that when the first message is processed then creating and starting the producer may take a little time and prolong the total processing time of the processing.

false

boolean

region (producer)

The region in which MSK client needs to work

String

secretKey (producer)

Amazon AWS Secret Key

String

basicPropertyBinding (advanced)

Whether the component should use basic property binding (Camel 2.x) or the newer property binding with additional capabilities

false

boolean

configuration (advanced)

The AWS MSK default configuration

MSK2Configuration

The AWS 2 MSK endpoint is configured using URI syntax:

aws2-msk:label

with the following path and query parameters:

Path Parameters (1 parameters):

Name Description Default Type

label

Required Logical name

String

Query Parameters (11 parameters):

Name Description Default Type

accessKey (producer)

Amazon AWS Access Key

String

lazyStartProducer (producer)

Whether the producer should be started lazy (on the first message). By starting lazy you can use this to allow CamelContext and routes to startup in situations where a producer may otherwise fail during starting and cause the route to fail being started. By deferring this startup to be lazy then the startup failure can be handled during routing messages via Camel’s routing error handlers. Beware that when the first message is processed then creating and starting the producer may take a little time and prolong the total processing time of the processing.

false

boolean

mskClient (producer)

To use a existing configured AWS MSK as client

KafkaClient

operation (producer)

Required The operation to perform. The value can be one of: listClusters, createCluster, deleteCluster, describeCluster

MSK2Operations

proxyHost (producer)

To define a proxy host when instantiating the MSK client

String

proxyPort (producer)

To define a proxy port when instantiating the MSK client

Integer

proxyProtocol (producer)

To define a proxy protocol when instantiating the MSK client. The value can be one of: HTTP, HTTPS

HTTPS

Protocol

region (producer)

The region in which MSK client needs to work. When using this parameter, the configuration will expect the lowercase name of the region (for example ap-east-1) You’ll need to use the name Region.EU_WEST_1.id()

String

secretKey (producer)

Amazon AWS Secret Key

String

basicPropertyBinding (advanced)

Whether the endpoint should use basic property binding (Camel 2.x) or the newer property binding with additional capabilities

false

boolean

synchronous (advanced)

Sets whether synchronous processing should be strictly used, or Camel is allowed to use asynchronous processing (if supported).

false

boolean

Required MSK component options

You have to provide the amazonMskClient in the Registry or your accessKey and secretKey to access the Amazon MSK service.

Usage

Message headers evaluated by the MSK producer

Header Type Description

CamelAwsMSKOperation

String

The operation to perform

CamelAwsMSKClusterFilter

String

The cluster name filter for list operation

CamelAwsMSKClusterName

String

The cluster name for list and create operation

CamelAwsMSKClusterArn

String

The cluster arn for delete operation

CamelAwsMSKClusterKafkaVersion

String

The Kafka for the cluster during create operation

CamelAwsMSKBrokerNodesNumber

Integer

The number of nodes for the cluster during create operation

CamelAwsMSKBrokerNodesGroupInfo

com.amazonaws.services.kafka.model.BrokerNodeGroupInfo

The Broker nodes group info to provide during the create operation

MSK Producer operations

Camel-AWS MSK component provides the following operation on the producer side:

  • listClusters

  • createCluster

  • deleteCluster

  • describeCluster

Producer Examples

  • listBrokers: this operation will list the available MSK Brokers in AWS

from("direct:listClusters")
    .to("aws2-msk://test?mskClient=#amazonMskClient&operation=listClusters")

Automatic detection of KafkaClient client in registry

The component is capable of detecting the presence of an KafkaClient bean into the registry. If it’s the only instance of that type it will be used as client and you won’t have to define it as uri parameter. This may be really useful for smarter configuration of the endpoint.

Dependencies

Maven users will need to add the following dependency to their pom.xml.

pom.xml

<dependency>
    <groupId>org.apache.camel</groupId>
    <artifactId>camel-aws2-msk</artifactId>
    <version>${camel-version}</version>
</dependency>

where ${camel-version} must be replaced by the actual version of Camel.

Spring Boot Auto-Configuration

When using aws2-msk with Spring Boot make sure to use the following Maven dependency to have support for auto configuration:

<dependency>
  <groupId>org.apache.camel.springboot</groupId>
  <artifactId>camel-aws2-msk-starter</artifactId>
  <version>x.x.x</version>
  <!-- use the same version as your Camel core version -->
</dependency>

The component supports 14 options, which are listed below.

Name Description Default Type

camel.component.aws2-msk.access-key

Amazon AWS Access Key

String

camel.component.aws2-msk.basic-property-binding

Whether the component should use basic property binding (Camel 2.x) or the newer property binding with additional capabilities

false

Boolean

camel.component.aws2-msk.configuration.access-key

Amazon AWS Access Key

String

camel.component.aws2-msk.configuration.msk-client

To use a existing configured AWS MSK as client

KafkaClient

camel.component.aws2-msk.configuration.operation

The operation to perform

MSK2Operations

camel.component.aws2-msk.configuration.proxy-host

To define a proxy host when instantiating the MSK client

String

camel.component.aws2-msk.configuration.proxy-port

To define a proxy port when instantiating the MSK client

Integer

camel.component.aws2-msk.configuration.proxy-protocol

To define a proxy protocol when instantiating the MSK client

Protocol

camel.component.aws2-msk.configuration.region

The region in which MSK client needs to work. When using this parameter, the configuration will expect the lowercase name of the region (for example ap-east-1) You’ll need to use the name Region.EU_WEST_1.id()

String

camel.component.aws2-msk.configuration.secret-key

Amazon AWS Secret Key

String

camel.component.aws2-msk.enabled

Whether to enable auto configuration of the aws2-msk component. This is enabled by default.

Boolean

camel.component.aws2-msk.lazy-start-producer

Whether the producer should be started lazy (on the first message). By starting lazy you can use this to allow CamelContext and routes to startup in situations where a producer may otherwise fail during starting and cause the route to fail being started. By deferring this startup to be lazy then the startup failure can be handled during routing messages via Camel’s routing error handlers. Beware that when the first message is processed then creating and starting the producer may take a little time and prolong the total processing time of the processing.

false

Boolean

camel.component.aws2-msk.region

The region in which MSK client needs to work

String

camel.component.aws2-msk.secret-key

Amazon AWS Secret Key

String