ResourceState describes the state the resource.
A normal lifecycle of a new resource being created would be:
PENDING -> PROVISIONING -> RUNNING. A normal lifecycle of an
existing resource being deleted would be: RUNNING -> DELETING.
Any failures during processing will result the resource to be in
a SUSPENDED state.
Values:
STATE_UNKNOWN (0):
Unspecified state.
STATE_PENDING (1):
The resource is being prepared to be applied
to the rack.
STATE_PROVISIONING (2):
The resource has started being applied to the
rack.
STATE_RUNNING (3):
The resource has been pushed to the rack.
STATE_SUSPENDED (4):
The resource failed to push to the rack.
STATE_DELETING (5):
The resource is under deletion.
