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Chapter 111. Openshift

Openshift Component
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Available as of Camel 2.14
The openshift component is a component for managing your OpenShift applications.
Maven users will need to add the following dependency to their pom.xml for this component: 
<dependency>
    <groupId>org.apache.camel</groupId>
    <artifactId>camel-openshift</artifactId>
    <version>x.x.x</version>
    <!-- use the same version as your Camel core version -->
</dependency>
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URI format
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openshift:clientId[?options]
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You can append query options to the URI in the following format, ?option=value&option=value&...

Options
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Expand
Name
Default Value
Description
domain
null
Domain name. If not specified then the default domain is used.
username
Mandatory: The username to login to openshift server.
password
Mandatory: The password for login to openshift server.
server
Url to the openshift server. If not specified then the default value from the local openshift configuration file ~/.openshift/express.conf is used. And if that fails as well then "openshift.redhat.com" is used.
delay
10s
Consumer only: How frequent to poll for state changes for the applications. By default we poll every 10 seconds.
operation
list
Producer only: The operation to perform which can be: list, start, stop, restart, and state. The list operation returns information about all the applications in json format. The state operation returns the state such as: started, stopped etc. The other operations does not return any value.
application
Producer only: The application name to start, stop, restart, or get the state.
mode
Producer only: Whether to output the message body as a pojo or json. For pojo the message is a List<com.openshift.client.IApplication> type.

Examples
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Listing all applications
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// sending route
from("direct:apps")
    .to("openshift:myClient?username=foo&password=secret&operation=list");
    .to("log:apps");
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In this case the information about all the applications is returned as pojo. If you want a json response, then set mode=json.

Stopping an application
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// stopping the foobar application
from("direct:control")
    .to("openshift:myClient?username=foo&password=secret&operation=stop&application=foobar");
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In the example above we stop the application named foobar.
Polling for gear state changes
The consumer is used for polling state changes in gears. Such as when a new gear is added/removed/ or its lifecycle is changed, eg started, or stopped etc. 
// trigger when state changes on our gears
from("openshift:myClient?username=foo&password=secret&delay=30s")
    .log("Event ${header.CamelOpenShiftEventType} on application ${body.name} changed state to ${header.CamelOpenShiftEventNewState}");
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When the consumer emits an Exchange then the body contains the com.openshift.client.IApplication as the message body. And the following headers is included.
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Header
May be null
Description
CamelOpenShiftEventType
No
The type of the event which can be one of: added, removed or changed.
CamelOpenShiftEventOldState
Yes
The old state, when the event type is changed.
CamelOpenShiftEventNewState
No
The new state, for any of the event types
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