[[kubernetes-config-maps-component]]
= Kubernetes ConfigMap Component
:page-source: components/camel-kubernetes/src/main/docs/kubernetes-config-maps-component.adoc

*Since Camel 2.17*

// HEADER START
*Only producer is supported*
// HEADER END

The Kubernetes ConfigMap component is one of xref:kubernetes.adoc[Kubernetes Components] which
provides a producer to execute kubernetes ConfigMap operations and a consumer to consume events related to Config maps.


== Component Options

// component options: START
The Kubernetes ConfigMap component supports 3 options, which are listed below.


[width="100%",cols="2,5,^1,2",options="header"]
|===
| Name | Description | Default | Type
| *basicPropertyBinding* (advanced) | Whether the component should use basic property binding (Camel 2.x) or the newer property binding with additional capabilities | false | boolean
| *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
| *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
|===
// component options: END


== Endpoint Options

// endpoint options: START
The Kubernetes ConfigMap endpoint is configured using URI syntax:

----
kubernetes-config-maps:masterUrl
----

with the following path and query parameters:

=== Path Parameters (1 parameters):


[width="100%",cols="2,5,^1,2",options="header"]
|===
| Name | Description | Default | Type
| *masterUrl* | *Required* Kubernetes Master url |  | String
|===


=== Query Parameters (22 parameters):


[width="100%",cols="2,5,^1,2",options="header"]
|===
| Name | Description | Default | Type
| *apiVersion* (producer) | The Kubernetes API Version to use |  | String
| *dnsDomain* (producer) | The dns domain, used for ServiceCall EIP |  | String
| *kubernetesClient* (producer) | Default KubernetesClient to use if provided |  | KubernetesClient
| *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
| *operation* (producer) | Producer operation to do on Kubernetes |  | String
| *portName* (producer) | The port name, used for ServiceCall EIP |  | String
| *portProtocol* (producer) | The port protocol, used for ServiceCall EIP | tcp | String
| *basicPropertyBinding* (advanced) | Whether the endpoint should use basic property binding (Camel 2.x) or the newer property binding with additional capabilities | false | boolean
| *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
|===
// endpoint options: END
// spring-boot-auto-configure options: START
== Spring Boot Auto-Configuration

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

[source,xml]
----
<dependency>
  <groupId>org.apache.camel.springboot</groupId>
  <artifactId>camel-kubernetes-starter</artifactId>
  <version>x.x.x</version>
  <!-- use the same version as your Camel core version -->
</dependency>
----


The component supports 4 options, which are listed below.


[width="100%",cols="2,5,^1,2",options="header"]
|===
| Name | Description | Default | Type
| *camel.component.kubernetes-config-maps.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.kubernetes-config-maps.bridge-error-handler* | 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
| *camel.component.kubernetes-config-maps.enabled* | Whether to enable auto configuration of the kubernetes-config-maps component. This is enabled by default. |  | Boolean
| *camel.component.kubernetes-config-maps.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
|===
// spring-boot-auto-configure options: END

== Supported producer operation

- listConfigMaps
- listConfigMapsByLabels
- getConfigMap
- createConfigMap
- deleteConfigMap

== Kubernetes ConfigMaps Producer Examples

- listConfigMaps: this operation list the configmaps

[source,java]
--------------------------------------------------------------------------------
from("direct:list").
    to("kubernetes-config-maps:///?kubernetesClient=#kubernetesClient&operation=listConfigMaps").
    to("mock:result");
--------------------------------------------------------------------------------

This operation return a List of ConfigMaps from your cluster

- listConfigMapsByLabels: this operation list the configmaps selected by label

[source,java]
--------------------------------------------------------------------------------
from("direct:listByLabels").process(new Processor() {

            @Override
            public void process(Exchange exchange) throws Exception {
                Map<String, String> labels = new HashMap<>();
                labels.put("key1", "value1");
                labels.put("key2", "value2");
                exchange.getIn().setHeader(KubernetesConstants.KUBERNETES_CONFIGMAPS_LABELS, labels);
            }
        });
    to("kubernetes-config-maps:///?kubernetesClient=#kubernetesClient&operation=listConfigMapsByLabels").
    to("mock:result");
--------------------------------------------------------------------------------

This operation return a List of ConfigMaps from your cluster, using a label selector (with key1 and key2, with value value1 and value2)

== Kubernetes ConfigMaps Consumer Example

[source,java]
--------------------------------------------------------------------------------
fromF("kubernetes-config-maps://%s?oauthToken=%s&namespace=default&resourceName=test", host, authToken).process(new KubernertesProcessor()).to("mock:result");

    public class KubernertesProcessor implements Processor {
        @Override
        public void process(Exchange exchange) throws Exception {
            Message in = exchange.getIn();
            ConfigMap cm = exchange.getIn().getBody(ConfigMap.class);
            log.info("Got event with configmap name: " + cm.getMetadata().getName() + " and action " + in.getHeader(KubernetesConstants.KUBERNETES_EVENT_ACTION));
        }
    }
--------------------------------------------------------------------------------

This consumer will return a list of events on the namespace default for the config map test.