OnDemandOptions¶
Structure Class¶
dataclass
¶
Bases: _SerdeShape
Describes the configuration of On-Demand Instances in an EC2 Fleet.
Attributes¶
class-attribute
instance-attribute
¶
allocation_strategy: str | None = ...
The strategy that determines the order of the launch template overrides to use in fulfilling On-Demand capacity.
lowest-price - EC2 Fleet uses price to determine the order, launching
the lowest price first.
prioritized - EC2 Fleet uses the priority that you assigned to each
launch template override, launching the highest priority first.
Default: lowest-price
class-attribute
instance-attribute
¶
capacity_reservation_options: CapacityReservationOptions | None = ...
The strategy for using unused Capacity Reservations for fulfilling On-Demand capacity.
Supported only for fleets of type instant.
class-attribute
instance-attribute
¶
max_total_price: str | None = ...
The maximum amount per hour for On-Demand Instances that you're willing to pay.
Note
If your fleet includes T instances that are configured as unlimited,
and if their average CPU usage exceeds the baseline utilization, you
will incur a charge for surplus credits. The maxTotalPrice does not
account for surplus credits, and, if you use surplus credits, your final
cost might be higher than what you specified for maxTotalPrice. For
more information, see Surplus credits can incur
charges
in the Amazon EC2 User Guide.
class-attribute
instance-attribute
¶
min_target_capacity: int | None = ...
The minimum target capacity for On-Demand Instances in the fleet. If this minimum capacity isn't reached, no instances are launched.
Constraints: Maximum value of 1000. Supported only for fleets of type
instant.
At least one of the following must be specified:
SingleAvailabilityZone | SingleInstanceType