[Output Only] The current action that the managed instance group has
scheduled for the instance. Possible values:
NONE The instance is running, and the managed instance group does
not have any scheduled actions for this instance.
CREATING The managed instance group is creating this instance. If
the group fails to create this instance, it will try again until
it is successful.
CREATING_WITHOUT_RETRIES The managed instance group is attempting
to create this instance only once. If the group fails to create
this instance, it does not try again and the group's targetSize
value is decreased instead.
RECREATING The managed instance group is recreating this
instance.
DELETING The managed instance group is permanently deleting this
instance.
ABANDONING The managed instance group is abandoning this
instance. The instance will be removed from the instance group
and from any target pools that are associated with this group.
RESTARTING The managed instance group is restarting the instance.
REFRESHING The managed instance group is applying configuration
changes to the instance without stopping it. For example, the
group can update the target pool list for an instance without
stopping that instance.
VERIFYING The managed instance group has created the instance and
it is in the process of being verified.