Missing tests - because Kubernetes mock is deprecated

[ShaharGotshtat]

Since Kubernetes mock is deprecated, it's super hard to write some tests that we would like to write:

1. StatusController:
   • GetCurrentServiceStatus.
   • GetCurrentEnvironmentStatus.
   • GetLatestPodName (with and without groupId).
   • GetPodContainers.
2. ScalingController:
   • UpdateScalingFactor.
3. EnvStatus (DeploymentEnvStatusManager):
   • When having another service in the same environment and it is part of a group.
4. HealthController:
   • Detect unhealthy environment.
5. KubernetesActionsController:
   • Restart pod.
   • Restart all pods.
6. Limit concurrent deployment based on environment setting

[asafalima]

We should refactor these tests and make them E2E tests and run them with k8s cluster on travis-ci: https://medium.com/@cedriclam/how-to-run-e2e-tests-against-a-kubernetes-cluster-with-travis-ci-628237ac8fbe

[roiravhon]

Yep, that's the plan