ZoneDistributionStrategy type

Distribution strategies for LaunchBulkInstancesOperation zone allocation policy.
KnownZoneDistributionStrategy can be used interchangeably with ZoneDistributionStrategy, this enum contains the known values that the service supports.

Known values supported by the service

BestEffortSingleZone: Default. Launch instances in a single zone based on best effort. If capacity is not available, LaunchBulkInstancesOperation can allocate capacity in different zones.
Prioritized: Launch instances based on zone preferences. Higher priority zones are filled first before allocating to lower priority zones.
BestEffortBalanced: Balance launching instances across zones specified based on best effort. If capacity is not available, LaunchBulkInstancesOperation can deviate balancing across all zones.
StrictBalanced: Launch instances across all provided zones, ensuring the difference between any two zones is no more than one instance.