ContainerShellCommand is helper factory method to create the shell command.

WaitForPodsToTerminate wait for all the pods matching the labels to terminate.

EnvVarPodIP holds the POD's IP.

LabelAppComponent defines the component within the architecture e.g database.

LabelAppInstance defines the unique name identifying the instance of an application.

LabelAppManagedBy defines the managed-by label.

LabelAppName defines name of the application e.g postgres.

LabelAppPartOf defines the managed-by label.

LabelAppVersion defines the app label.