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Chapter 111. Openshift
Openshift Component
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>URI format
openshift:clientId[?options]
You can append query options to the URI in the following format,
?option=value&option=value&...
Options
|
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
Listing all applications
// sending route
from("direct:apps")
.to("openshift:myClient?username=foo&password=secret&operation=list");
.to("log:apps");
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
// stopping the foobar application
from("direct:control")
.to("openshift:myClient?username=foo&password=secret&operation=stop&application=foobar");
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}");
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.
|
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
|
