CreateDeployment creates a deployment.

GetPodsForDeployment gets pods for the given deployment.

NewDeployment returns a deployment spec with the specified argument.

UpdateDeploymentWithRetries updates the specified deployment with retries.

WaitForDeploymentComplete waits for the deployment to complete, and don't check if rolling update strategy is broken.

WaitForDeploymentRevisionAndImage waits for the deployment's and its new RS's revision and container image to match the given revision and image.