UpdateAutoScalingGroup#

Description#

Updates the configuration for the specified Auto Scaling Group (ASG).

Request Parameters#

Required parameters#

  • AutoScalingGroupName — The name of the ASG.

    • Type: String

    • Required: Yes

    • Constraints: 1 to 255 ASCII characters

Optional parameters#

  • DefaultCooldown — The time (in seconds) after which the next activity can start. Used as the default value for the Cooldown parameter when creating/updating policies in this ASG. For SimpleScaling policies only.

    • Type: Integer

    • Required: No

    • Default value: 300

  • DesiredCapacity — The desired capacity of the ASG.

    • Type: Integer

    • Required: No

    • Constraints: The value should greater or equal than MinSize and less and equal than MaxSize

    • Default value: MinSize

  • HealthCheckGracePeriod — The time (in seconds) after which ASG can perform a health check on its instances.

    • Type: Integer

    • Required: No

    • Default value: 0

  • LaunchTemplate — The launch template to use to launch instances.

  • MaxSize — The maximum capacity of the ASG.

    • Type: Integer

    • Required: No

  • MinSize — The minimal capacity of the ASG.

    • Type: Integer

    • Required: No

  • NewInstancesProtectedFromScaleIn — Indicates whether new instances are protected from deletion when ASG is scaled in.

    • Type: Boolean

    • Required: No

  • VPCZoneIdentifier — The IDs of the subnets in which instances will be created.

    • Type: String

    • Required: No

    • Restrictions: you can specify not more than one subnet in each availability zone. All subnets should belong to the same VPC

    • Patterns: subnet-xxxxxxxx | subnet-xxxxxxxx,subnet-yyyyyyyy | subnet-xxxxxxxx,subnet-yyyyyyyy,subnet-zzzzzzzz

  • TerminationPolicies — List of criteria to select instances for deletion when their number has to be reduced. The criteria will be applied in the order in which they are listed.

    • Type: Array of strings

    • Required: No

    • Valid value: OldestInstance | NewestInstance | OldestLaunchTemplate