The instance redistribution policy for regional managed
instance groups. Valid values are: - PROACTIVE (default): The
group attempts to maintain an even distribution of VM instances
across zones in the region. - NONE: For non-autoscaled groups,
proactive redistribution is disabled. Additional supported
values which may be not listed in the enum directly due to
technical reasons:
NONE
PROACTIVE
Values:
UNDEFINED_INSTANCE_REDISTRIBUTION_TYPE (0):
A value indicating that the enum field is not
set.
