LivenessState(value)
Liveness health check status for Flex instances.
Values: LIVENESS_STATE_UNSPECIFIED (0): There is no liveness health check for the instance. Only applicable for instances in App Engine standard environment. UNKNOWN (1): The health checking system is aware of the instance but its health is not known at the moment. HEALTHY (2): The instance is reachable i.e. a connection to the application health checking endpoint can be established, and conforms to the requirements defined by the health check. UNHEALTHY (3): The instance is reachable, but does not conform to the requirements defined by the health check. DRAINING (4): The instance is being drained. The existing connections to the instance have time to complete, but the new ones are being refused. TIMEOUT (5): The instance is unreachable i.e. a connection to the application health checking endpoint cannot be established, or the server does not respond within the specified timeout.