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api_op_UpdateAutoScalingGroup.go
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api_op_UpdateAutoScalingGroup.go
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// Code generated by smithy-go-codegen DO NOT EDIT.
package autoscaling
import (
"context"
"fmt"
awsmiddleware "github.com/aws/aws-sdk-go-v2/aws/middleware"
"github.com/aws/aws-sdk-go-v2/service/autoscaling/types"
"github.com/aws/smithy-go/middleware"
smithyhttp "github.com/aws/smithy-go/transport/http"
)
// We strongly recommend that all Auto Scaling groups use launch templates to
//
// ensure full functionality for Amazon EC2 Auto Scaling and Amazon EC2.
//
// Updates the configuration for the specified Auto Scaling group.
//
// To update an Auto Scaling group, specify the name of the group and the property
// that you want to change. Any properties that you don't specify are not changed
// by this update request. The new settings take effect on any scaling activities
// after this call returns.
//
// If you associate a new launch configuration or template with an Auto Scaling
// group, all new instances will get the updated configuration. Existing instances
// continue to run with the configuration that they were originally launched with.
// When you update a group to specify a mixed instances policy instead of a launch
// configuration or template, existing instances may be replaced to match the new
// purchasing options that you specified in the policy. For example, if the group
// currently has 100% On-Demand capacity and the policy specifies 50% Spot
// capacity, this means that half of your instances will be gradually terminated
// and relaunched as Spot Instances. When replacing instances, Amazon EC2 Auto
// Scaling launches new instances before terminating the old ones, so that updating
// your group does not compromise the performance or availability of your
// application.
//
// Note the following about changing DesiredCapacity , MaxSize , or MinSize :
//
// - If a scale-in activity occurs as a result of a new DesiredCapacity value
// that is lower than the current size of the group, the Auto Scaling group uses
// its termination policy to determine which instances to terminate.
//
// - If you specify a new value for MinSize without specifying a value for
// DesiredCapacity , and the new MinSize is larger than the current size of the
// group, this sets the group's DesiredCapacity to the new MinSize value.
//
// - If you specify a new value for MaxSize without specifying a value for
// DesiredCapacity , and the new MaxSize is smaller than the current size of the
// group, this sets the group's DesiredCapacity to the new MaxSize value.
//
// To see which properties have been set, call the DescribeAutoScalingGroups API. To view the scaling
// policies for an Auto Scaling group, call the DescribePoliciesAPI. If the group has scaling
// policies, you can update them by calling the PutScalingPolicyAPI.
func (c *Client) UpdateAutoScalingGroup(ctx context.Context, params *UpdateAutoScalingGroupInput, optFns ...func(*Options)) (*UpdateAutoScalingGroupOutput, error) {
if params == nil {
params = &UpdateAutoScalingGroupInput{}
}
result, metadata, err := c.invokeOperation(ctx, "UpdateAutoScalingGroup", params, optFns, c.addOperationUpdateAutoScalingGroupMiddlewares)
if err != nil {
return nil, err
}
out := result.(*UpdateAutoScalingGroupOutput)
out.ResultMetadata = metadata
return out, nil
}
type UpdateAutoScalingGroupInput struct {
// The name of the Auto Scaling group.
//
// This member is required.
AutoScalingGroupName *string
// One or more Availability Zones for the group.
AvailabilityZones []string
// Enables or disables Capacity Rebalancing. For more information, see [Use Capacity Rebalancing to handle Amazon EC2 Spot Interruptions] in the
// Amazon EC2 Auto Scaling User Guide.
//
// [Use Capacity Rebalancing to handle Amazon EC2 Spot Interruptions]: https://docs.aws.amazon.com/autoscaling/ec2/userguide/ec2-auto-scaling-capacity-rebalancing.html
CapacityRebalance *bool
// Reserved.
Context *string
// Only needed if you use simple scaling policies.
//
// The amount of time, in seconds, between one scaling activity ending and another
// one starting due to simple scaling policies. For more information, see [Scaling cooldowns for Amazon EC2 Auto Scaling]in the
// Amazon EC2 Auto Scaling User Guide.
//
// [Scaling cooldowns for Amazon EC2 Auto Scaling]: https://docs.aws.amazon.com/autoscaling/ec2/userguide/Cooldown.html
DefaultCooldown *int32
// The amount of time, in seconds, until a new instance is considered to have
// finished initializing and resource consumption to become stable after it enters
// the InService state.
//
// During an instance refresh, Amazon EC2 Auto Scaling waits for the warm-up
// period after it replaces an instance before it moves on to replacing the next
// instance. Amazon EC2 Auto Scaling also waits for the warm-up period before
// aggregating the metrics for new instances with existing instances in the Amazon
// CloudWatch metrics that are used for scaling, resulting in more reliable usage
// data. For more information, see [Set the default instance warmup for an Auto Scaling group]in the Amazon EC2 Auto Scaling User Guide.
//
// To manage various warm-up settings at the group level, we recommend that you
// set the default instance warmup, even if it is set to 0 seconds. To remove a
// value that you previously set, include the property but specify -1 for the
// value. However, we strongly recommend keeping the default instance warmup
// enabled by specifying a value of 0 or other nominal value.
//
// [Set the default instance warmup for an Auto Scaling group]: https://docs.aws.amazon.com/autoscaling/ec2/userguide/ec2-auto-scaling-default-instance-warmup.html
DefaultInstanceWarmup *int32
// The desired capacity is the initial capacity of the Auto Scaling group after
// this operation completes and the capacity it attempts to maintain. This number
// must be greater than or equal to the minimum size of the group and less than or
// equal to the maximum size of the group.
DesiredCapacity *int32
// The unit of measurement for the value specified for desired capacity. Amazon
// EC2 Auto Scaling supports DesiredCapacityType for attribute-based instance type
// selection only. For more information, see [Creating an Auto Scaling group using attribute-based instance type selection]in the Amazon EC2 Auto Scaling User
// Guide.
//
// By default, Amazon EC2 Auto Scaling specifies units , which translates into
// number of instances.
//
// Valid values: units | vcpu | memory-mib
//
// [Creating an Auto Scaling group using attribute-based instance type selection]: https://docs.aws.amazon.com/autoscaling/ec2/userguide/create-asg-instance-type-requirements.html
DesiredCapacityType *string
// The amount of time, in seconds, that Amazon EC2 Auto Scaling waits before
// checking the health status of an EC2 instance that has come into service and
// marking it unhealthy due to a failed health check. This is useful if your
// instances do not immediately pass their health checks after they enter the
// InService state. For more information, see [Set the health check grace period for an Auto Scaling group] in the Amazon EC2 Auto Scaling User
// Guide.
//
// [Set the health check grace period for an Auto Scaling group]: https://docs.aws.amazon.com/autoscaling/ec2/userguide/health-check-grace-period.html
HealthCheckGracePeriod *int32
// A comma-separated value string of one or more health check types.
//
// The valid values are EC2 , ELB , and VPC_LATTICE . EC2 is the default health
// check and cannot be disabled. For more information, see [Health checks for Auto Scaling instances]in the Amazon EC2 Auto
// Scaling User Guide.
//
// Only specify EC2 if you must clear a value that was previously set.
//
// [Health checks for Auto Scaling instances]: https://docs.aws.amazon.com/autoscaling/ec2/userguide/healthcheck.html
HealthCheckType *string
// An instance maintenance policy. For more information, see [Set instance maintenance policy] in the Amazon EC2
// Auto Scaling User Guide.
//
// [Set instance maintenance policy]: https://docs.aws.amazon.com/autoscaling/ec2/userguide/ec2-auto-scaling-instance-maintenance-policy.html
InstanceMaintenancePolicy *types.InstanceMaintenancePolicy
// The name of the launch configuration. If you specify LaunchConfigurationName in
// your update request, you can't specify LaunchTemplate or MixedInstancesPolicy .
LaunchConfigurationName *string
// The launch template and version to use to specify the updates. If you specify
// LaunchTemplate in your update request, you can't specify LaunchConfigurationName
// or MixedInstancesPolicy .
LaunchTemplate *types.LaunchTemplateSpecification
// The maximum amount of time, in seconds, that an instance can be in service. The
// default is null. If specified, the value must be either 0 or a number equal to
// or greater than 86,400 seconds (1 day). To clear a previously set value, specify
// a new value of 0. For more information, see [Replacing Auto Scaling instances based on maximum instance lifetime]in the Amazon EC2 Auto Scaling User
// Guide.
//
// [Replacing Auto Scaling instances based on maximum instance lifetime]: https://docs.aws.amazon.com/autoscaling/ec2/userguide/asg-max-instance-lifetime.html
MaxInstanceLifetime *int32
// The maximum size of the Auto Scaling group.
//
// With a mixed instances policy that uses instance weighting, Amazon EC2 Auto
// Scaling may need to go above MaxSize to meet your capacity requirements. In
// this event, Amazon EC2 Auto Scaling will never go above MaxSize by more than
// your largest instance weight (weights that define how many units each instance
// contributes to the desired capacity of the group).
MaxSize *int32
// The minimum size of the Auto Scaling group.
MinSize *int32
// The mixed instances policy. For more information, see [Auto Scaling groups with multiple instance types and purchase options] in the Amazon EC2 Auto
// Scaling User Guide.
//
// [Auto Scaling groups with multiple instance types and purchase options]: https://docs.aws.amazon.com/autoscaling/ec2/userguide/ec2-auto-scaling-mixed-instances-groups.html
MixedInstancesPolicy *types.MixedInstancesPolicy
// Indicates whether newly launched instances are protected from termination by
// Amazon EC2 Auto Scaling when scaling in. For more information about preventing
// instances from terminating on scale in, see [Using instance scale-in protection]in the Amazon EC2 Auto Scaling User
// Guide.
//
// [Using instance scale-in protection]: https://docs.aws.amazon.com/autoscaling/ec2/userguide/ec2-auto-scaling-instance-protection.html
NewInstancesProtectedFromScaleIn *bool
// The name of an existing placement group into which to launch your instances.
// For more information, see [Placement groups]in the Amazon EC2 User Guide for Linux Instances.
//
// A cluster placement group is a logical grouping of instances within a single
// Availability Zone. You cannot specify multiple Availability Zones and a cluster
// placement group.
//
// [Placement groups]: https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/placement-groups.html
PlacementGroup *string
// The Amazon Resource Name (ARN) of the service-linked role that the Auto Scaling
// group uses to call other Amazon Web Services on your behalf. For more
// information, see [Service-linked roles]in the Amazon EC2 Auto Scaling User Guide.
//
// [Service-linked roles]: https://docs.aws.amazon.com/autoscaling/ec2/userguide/autoscaling-service-linked-role.html
ServiceLinkedRoleARN *string
// A policy or a list of policies that are used to select the instances to
// terminate. The policies are executed in the order that you list them. For more
// information, see [Work with Amazon EC2 Auto Scaling termination policies]in the Amazon EC2 Auto Scaling User Guide.
//
// Valid values: Default | AllocationStrategy | ClosestToNextInstanceHour |
// NewestInstance | OldestInstance | OldestLaunchConfiguration |
// OldestLaunchTemplate |
// arn:aws:lambda:region:account-id:function:my-function:my-alias
//
// [Work with Amazon EC2 Auto Scaling termination policies]: https://docs.aws.amazon.com/autoscaling/ec2/userguide/ec2-auto-scaling-termination-policies.html
TerminationPolicies []string
// A comma-separated list of subnet IDs for a virtual private cloud (VPC). If you
// specify VPCZoneIdentifier with AvailabilityZones , the subnets that you specify
// must reside in those Availability Zones.
VPCZoneIdentifier *string
noSmithyDocumentSerde
}
type UpdateAutoScalingGroupOutput struct {
// Metadata pertaining to the operation's result.
ResultMetadata middleware.Metadata
noSmithyDocumentSerde
}
func (c *Client) addOperationUpdateAutoScalingGroupMiddlewares(stack *middleware.Stack, options Options) (err error) {
if err := stack.Serialize.Add(&setOperationInputMiddleware{}, middleware.After); err != nil {
return err
}
err = stack.Serialize.Add(&awsAwsquery_serializeOpUpdateAutoScalingGroup{}, middleware.After)
if err != nil {
return err
}
err = stack.Deserialize.Add(&awsAwsquery_deserializeOpUpdateAutoScalingGroup{}, middleware.After)
if err != nil {
return err
}
if err := addProtocolFinalizerMiddlewares(stack, options, "UpdateAutoScalingGroup"); err != nil {
return fmt.Errorf("add protocol finalizers: %v", err)
}
if err = addlegacyEndpointContextSetter(stack, options); err != nil {
return err
}
if err = addSetLoggerMiddleware(stack, options); err != nil {
return err
}
if err = addClientRequestID(stack); err != nil {
return err
}
if err = addComputeContentLength(stack); err != nil {
return err
}
if err = addResolveEndpointMiddleware(stack, options); err != nil {
return err
}
if err = addComputePayloadSHA256(stack); err != nil {
return err
}
if err = addRetry(stack, options); err != nil {
return err
}
if err = addRawResponseToMetadata(stack); err != nil {
return err
}
if err = addRecordResponseTiming(stack); err != nil {
return err
}
if err = addClientUserAgent(stack, options); err != nil {
return err
}
if err = smithyhttp.AddErrorCloseResponseBodyMiddleware(stack); err != nil {
return err
}
if err = smithyhttp.AddCloseResponseBodyMiddleware(stack); err != nil {
return err
}
if err = addSetLegacyContextSigningOptionsMiddleware(stack); err != nil {
return err
}
if err = addOpUpdateAutoScalingGroupValidationMiddleware(stack); err != nil {
return err
}
if err = stack.Initialize.Add(newServiceMetadataMiddleware_opUpdateAutoScalingGroup(options.Region), middleware.Before); err != nil {
return err
}
if err = addRecursionDetection(stack); err != nil {
return err
}
if err = addRequestIDRetrieverMiddleware(stack); err != nil {
return err
}
if err = addResponseErrorMiddleware(stack); err != nil {
return err
}
if err = addRequestResponseLogging(stack, options); err != nil {
return err
}
if err = addDisableHTTPSMiddleware(stack, options); err != nil {
return err
}
return nil
}
func newServiceMetadataMiddleware_opUpdateAutoScalingGroup(region string) *awsmiddleware.RegisterServiceMetadata {
return &awsmiddleware.RegisterServiceMetadata{
Region: region,
ServiceID: ServiceID,
OperationName: "UpdateAutoScalingGroup",
}
}