Auto Scaling operations

Category	✅ Supported
Operations	25

Operation	Status	Notes	AWS Docs
CreateAutoScalingGroup	✅ Supported	Reconciles: launches EC2 instances to DesiredCapacity from a LaunchConfiguration or a LaunchTemplate, resolved through EC2 at create time. A group naming neither AvailabilityZones nor VPCZoneIdentifier, and VPCZoneIdentifier subnets outside AvailabilityZones, are AWS’s ValidationError; given only subnets, the zones are derived from them. MixedInstancesPolicy and InstanceId are refused with 501
UpdateAutoScalingGroup	✅ Supported	Min/max/desired changes re-converge the group; desired outside min/max, VPCZoneIdentifier subnets outside AvailabilityZones, and an update leaving the group with neither AvailabilityZones nor VPCZoneIdentifier, are AWS’s ValidationError. Setting either launch source clears the other
DescribeAutoScalingGroups	✅ Supported	Reports the real converged instance set with LifecycleState, HealthStatus, AvailabilityZone and ProtectedFromScaleIn, and the group’s LaunchTemplate when it has one
DeleteAutoScalingGroup	✅ Supported	ResourceInUse while instances remain unless ForceDelete; ForceDelete terminates them
SetDesiredCapacity	✅ Supported	Launches or terminates instances to converge; out-of-range values return AWS’s ValidationError
TerminateInstanceInAutoScalingGroup	✅ Supported	Terminates the EC2 instance and records the scaling activity; honours ShouldDecrementDesiredCapacity
CreateLaunchConfiguration	✅ Supported	ImageId/InstanceType/SecurityGroups drive RunInstances at launch time
DescribeLaunchConfigurations	✅ Supported
DeleteLaunchConfiguration	✅ Supported	ResourceInUse while a group still references it
PutScalingPolicy	✅ Supported	SimpleScaling and StepScaling execute for real; TargetTrackingScaling and PredictiveScaling are refused with 501
DescribePolicies	✅ Supported
DeletePolicy	✅ Supported
ExecutePolicy	✅ Supported	Applies the policy’s adjustment to DesiredCapacity, honouring cooldown and MinAdjustmentMagnitude
PutLifecycleHook	✅ Supported	Really pauses launch/terminate in Pending:Wait / Terminating:Wait and emits the EventBridge lifecycle-action event
DescribeLifecycleHooks	✅ Supported
DeleteLifecycleHook	✅ Supported	Releases any instance parked on the hook
CompleteLifecycleAction	✅ Supported	CONTINUE moves the instance on; ABANDON terminates it
RecordLifecycleActionHeartbeat	✅ Supported	Extends the hook’s heartbeat window
CreateOrUpdateTags	✅ Supported	PropagateAtLaunch tags are applied to launched EC2 instances
DeleteTags	✅ Supported
DescribeTags	✅ Supported	Filters: auto-scaling-group, key, propagate-at-launch, value; an unimplemented filter name is refused, not ignored
DescribeAutoScalingInstances	✅ Supported	Reports the real instance set the reconciler owns
DescribeScalingActivities	✅ Supported	One activity per launch and termination, with AWS’s StatusCode and Cause wording
SetInstanceHealth	✅ Supported	Unhealthy instances are terminated and replaced by the reconciler
SetInstanceProtection	✅ Supported	Protected instances are excluded from scale-in