Values:
STATE_UNSPECIFIED (0):
Not set.
PROVISIONING (1):
The PROVISIONING state indicates the node
pool is being created.
RUNNING (2):
The RUNNING state indicates the node pool has
been created and is fully usable.
RECONCILING (3):
The RECONCILING state indicates that the node
pool is being reconciled.
STOPPING (4):
The STOPPING state indicates the node pool is
being deleted.
ERROR (5):
The ERROR state indicates the node pool is in
a broken unrecoverable state.
DEGRADED (6):
The DEGRADED state indicates the node pool
requires user action to restore full
functionality.
