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From Imesh Gunaratne <>
Subject [Discuss] Kubernetes API Client Methods Updated
Date Wed, 24 Dec 2014 18:29:53 GMT
Hi Devs,

In Kubernetes API client we have used following methods to create
replication controllers, services and pods:

*createReplicationController(ReplicationController replicationController)*
*createService(Service service)*
*createPod(Pod pod)*

Replication controller creation process involves series of steps before
invoking the createReplicationController() method:

- Create replication controller definition
- Set replication controller state
- Create pod template
- Create container template
- Set container ports
- Set pod template labels
- Set replication controller labels
- Invoke the api to create the replicate controller:
createReplicationController(ReplicationController replicationController)

Due to this complexity unit/live tests may implement this logic differently
than the actual Kubernetes implementation in the cloud controller. As s
result we may not be able to guarantee that if unit/live tests passes the
logic in cloud controller works similarly.

The same applies to createService() and createPod() methods.

Due to the above reason I have moved this logic into the Kubernetes API
client and exposed below methods so that both tests and cloud controller
behaves the same:

*createPod(String podId, String podName, String dockerImage, List<Integer>
*createService(String serviceId, String serviceName, int servicePort, int
containerPort, String publicIp)*
*createPod(String podId, String podName, String dockerImage, List<Integer>


Imesh Gunaratne

Technical Lead, WSO2
Committer & PMC Member, Apache Stratos

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