LaunchTemplateOverrides¶
-
class
aws_cdk.aws_autoscaling.
LaunchTemplateOverrides
(*, instance_type, launch_template=None, weighted_capacity=None)¶ Bases:
object
LaunchTemplateOverrides is a subproperty of LaunchTemplate that describes an override for a launch template.
- Parameters
instance_type (
InstanceType
) – The instance type, such as m3.xlarge. You must use an instance type that is supported in your requested Region and Availability Zones. Default: - Do not override instance typelaunch_template (
Optional
[ILaunchTemplate
]) – Provides the launch template to be used when launching the instance type. For example, some instance types might require a launch template with a different AMI. If not provided, Amazon EC2 Auto Scaling uses the launch template that’s defined for your mixed instances policy. Default: - Do not override launch templateweighted_capacity (
Union
[int
,float
,None
]) – The number of capacity units provided by the specified instance type in terms of virtual CPUs, memory, storage, throughput, or other relative performance characteristic. When a Spot or On-Demand Instance is provisioned, the capacity units count toward the desired capacity. Amazon EC2 Auto Scaling provisions instances until the desired capacity is totally fulfilled, even if this results in an overage. Value must be in the range of 1 to 999. For example, If there are 2 units remaining to fulfill capacity, and Amazon EC2 Auto Scaling can only provision an instance with a WeightedCapacity of 5 units, the instance is provisioned, and the desired capacity is exceeded by 3 units. Default: - Do not provide weight
- ExampleMetadata
fixture=_generated
Example:
# The code below shows an example of how to instantiate this type. # The values are placeholders you should change. import aws_cdk.aws_autoscaling as autoscaling import aws_cdk.aws_ec2 as ec2 # instance_type: ec2.InstanceType # launch_template: ec2.LaunchTemplate launch_template_overrides = autoscaling.LaunchTemplateOverrides( instance_type=instance_type, # the properties below are optional launch_template=launch_template, weighted_capacity=123 )
Attributes
-
instance_type
¶ The instance type, such as m3.xlarge. You must use an instance type that is supported in your requested Region and Availability Zones.
- Default
Do not override instance type
- Return type
-
launch_template
¶ Provides the launch template to be used when launching the instance type.
For example, some instance types might require a launch template with a different AMI. If not provided, Amazon EC2 Auto Scaling uses the launch template that’s defined for your mixed instances policy.
- Default
Do not override launch template
- Return type
Optional
[ILaunchTemplate
]
-
weighted_capacity
¶ The number of capacity units provided by the specified instance type in terms of virtual CPUs, memory, storage, throughput, or other relative performance characteristic.
When a Spot or On-Demand Instance is provisioned, the capacity units count toward the desired capacity. Amazon EC2 Auto Scaling provisions instances until the desired capacity is totally fulfilled, even if this results in an overage. Value must be in the range of 1 to 999.
For example, If there are 2 units remaining to fulfill capacity, and Amazon EC2 Auto Scaling can only provision an instance with a WeightedCapacity of 5 units, the instance is provisioned, and the desired capacity is exceeded by 3 units.
- Default
Do not provide weight
- See
https://docs.aws.amazon.com/autoscaling/ec2/userguide/asg-instance-weighting.html
- Return type
Union
[int
,float
,None
]