Chapter 187. Kubernetes Component (deprecated)

Available as of Camel version 2.17

The Kubernetes component is a component for integrating your application with Kubernetes standalone or on top of Openshift. 

Maven users will need to add the following dependency to their pom.xml for this component:

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

187.1. URI format

kubernetes:masterUrl[?options]

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

187.2. Options

The Kubernetes component has no options.

The Kubernetes endpoint is configured using URI syntax:

kubernetes:masterUrl

with the following path and query parameters:

187.2.1. Path Parameters (1 parameters):

NameDescriptionDefaultType

masterUrl

Required Kubernetes Master url

 

String

187.2.2. Query Parameters (28 parameters):

NameDescriptionDefaultType

apiVersion (common)

The Kubernetes API Version to use

 

String

category (common)

Required Kubernetes Producer and Consumer category

 

String

dnsDomain (common)

The dns domain, used for ServiceCall EIP

 

String

kubernetesClient (common)

Default KubernetesClient to use if provided

 

KubernetesClient

portName (common)

The port name, used for ServiceCall EIP

 

String

bridgeErrorHandler (consumer)

Allows for bridging the consumer to the Camel routing Error Handler, which mean any exceptions occurred while the consumer is trying to pickup incoming messages, or the likes, will now be processed as a message and handled by the routing Error Handler. By default the consumer will use the org.apache.camel.spi.ExceptionHandler to deal with exceptions, that will be logged at WARN or ERROR level and ignored.

false

boolean

labelKey (consumer)

The Consumer Label key when watching at some resources

 

String

labelValue (consumer)

The Consumer Label value when watching at some resources

 

String

namespace (consumer)

The namespace

 

String

poolSize (consumer)

The Consumer pool size

1

int

resourceName (consumer)

The Consumer Resource Name we would like to watch

 

String

exceptionHandler (consumer)

To let the consumer use a custom ExceptionHandler. Notice if the option bridgeErrorHandler is enabled then this options is not in use. By default the consumer will deal with exceptions, that will be logged at WARN or ERROR level and ignored.

 

ExceptionHandler

exchangePattern (consumer)

Sets the exchange pattern when the consumer creates an exchange.

 

ExchangePattern

operation (producer)

Producer operation to do on Kubernetes

 

String

connectionTimeout (advanced)

Connection timeout in milliseconds to use when making requests to the Kubernetes API server.

 

Integer

synchronous (advanced)

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

false

boolean

caCertData (security)

The CA Cert Data

 

String

caCertFile (security)

The CA Cert File

 

String

clientCertData (security)

The Client Cert Data

 

String

clientCertFile (security)

The Client Cert File

 

String

clientKeyAlgo (security)

The Key Algorithm used by the client

 

String

clientKeyData (security)

The Client Key data

 

String

clientKeyFile (security)

The Client Key file

 

String

clientKeyPassphrase (security)

The Client Key Passphrase

 

String

oauthToken (security)

The Auth Token

 

String

password (security)

Password to connect to Kubernetes

 

String

trustCerts (security)

Define if the certs we used are trusted anyway or not

 

Boolean

username (security)

Username to connect to Kubernetes

 

String

187.3. Headers

NameTypeDescription

CamelKubernetesOperation

String

The Producer operation

CamelKubernetesNamespaceName

String

The Namespace name

CamelKubernetesNamespaceLabels

Map

The Namespace Labels

CamelKubernetesServiceLabels

Map

The Service labels

CamelKubernetesServiceName

String

The Service name

CamelKubernetesServiceSpec

io.fabric8.kubernetes.api.model.ServiceSpec

The Spec for a Service

CamelKubernetesReplicationControllersLabels

Map

Replication controller labels

CamelKubernetesReplicationControllerName

String

Replication controller name

CamelKubernetesReplicationControllerSpec

io.fabric8.kubernetes.api.model.ReplicationControllerSpec

The Spec for a Replication Controller

CamelKubernetesReplicationControllerReplicas

Integer

The number of replicas for a Replication Controller during the Scale operation

CamelKubernetesPodsLabels

Map

Pod labels

CamelKubernetesPodName

String

Pod name

CamelKubernetesPodSpec

io.fabric8.kubernetes.api.model.PodSpec

The Spec for a Pod

CamelKubernetesPersistentVolumesLabels

Map

Persistent Volume labels

CamelKubernetesPersistentVolumesName

String

Persistent Volume name

CamelKubernetesPersistentVolumesClaimsLabels

Map

Persistent Volume Claim labels

CamelKubernetesPersistentVolumesClaimsName

String

Persistent Volume Claim name

CamelKubernetesPersistentVolumesClaimsSpec

io.fabric8.kubernetes.api.model.PersistentVolumeClaimSpec

The Spec for a Persistent Volume claim

CamelKubernetesSecretsLabels

Map

Secret labels

CamelKubernetesSecretsName

String

Secret name

CamelKubernetesSecret

io.fabric8.kubernetes.api.model.Secret

A Secret Object

CamelKubernetesResourcesQuotaLabels

Map

Resource Quota labels

CamelKubernetesResourcesQuotaName

String

Resource Quota name

CamelKubernetesResourceQuotaSpec

io.fabric8.kubernetes.api.model.ResourceQuotaSpec

The Spec for a Resource Quota

CamelKubernetesServiceAccountsLabels

Map

Service Account labels

CamelKubernetesServiceAccountName

String

Service Account name

CamelKubernetesServiceAccount

io.fabric8.kubernetes.api.model.ServiceAccount

A Service Account object

CamelKubernetesNodesLabels

Map

Node labels

CamelKubernetesNodeName

String

Node name

CamelKubernetesBuildsLabels

Map

Openshift Build labels

CamelKubernetesBuildName

String

Openshift Build name

CamelKubernetesBuildConfigsLabels

Map

Openshift Build Config labels

CamelKubernetesBuildConfigName

String

Openshift Build Config name

CamelKubernetesEventAction

io.fabric8.kubernetes.client.Watcher.Action

Action watched by the consumer

CamelKubernetesEventTimestamp

String

Timestamp of the action watched by the consumer

CamelKubernetesConfigMapName

String

ConfigMap name

CamelKubernetesConfigMapsLabels

Map

ConfigMap labels

CamelKubernetesConfigData

Map

ConfigMap Data

187.4. Categories

Actually the camel-kubernetes component supports the following Kubernetes resources

  • Namespaces
  • Pods
  • Replication Controllers
  • Services
  • Persistent Volumes
  • Persistent Volume Claims
  • Secrets
  • Resource Quota
  • Service Accounts
  • Nodes
  • Configmaps

In Openshift also

  • Builds
  • BuildConfigs

187.5. Usage

187.5.1. Producer examples

Here we show some examples of producer using camel-kubernetes.

187.5.2. Create a pod

from("direct:createPod")
    .toF("kubernetes://%s?oauthToken=%s&category=pods&operation=createPod", host, authToken);

By using the KubernetesConstants.KUBERNETES_POD_SPEC header you can specify your PodSpec and pass it to this operation.

187.5.3. Delete a pod

from("direct:createPod")
    .toF("kubernetes://%s?oauthToken=%s&category=pods&operation=deletePod", host, authToken);

By using the KubernetesConstants.KUBERNETES_POD_NAME header you can specify your Pod name and pass it to this operation.