Request Parameters Errors Examples See Also

AttachTrafficSources

Attaches one or more traffic sources to the specified Auto Scaling group.

You can use any of the following as traffic sources for an Auto Scaling group:

Application Load Balancer
Classic Load Balancer
Gateway Load Balancer
Network Load Balancer
VPC Lattice

This operation is additive and does not detach existing traffic sources from the Auto Scaling group.

After the operation completes, use the DescribeTrafficSources API to return details about the state of the attachments between traffic sources and your Auto Scaling group. To detach a traffic source from the Auto Scaling group, call the DetachTrafficSources API.

Request Parameters

For information about the parameters that are common to all actions, see Common Parameters.

AutoScalingGroupName

The name of the Auto Scaling group.

Type: String

Length Constraints: Minimum length of 1. Maximum length of 255.

Pattern: [\u0020-\uD7FF\uE000-\uFFFD\uD800\uDC00-\uDBFF\uDFFF\r\n\t]*

Required: Yes

SkipZonalShiftValidation

If you enable zonal shift with cross-zone disabled load balancers, capacity could become imbalanced across Availability Zones. To skip the validation, specify true. For more information, see Auto Scaling group zonal shift in the Amazon EC2 Auto Scaling User Guide.

Type: Boolean

Required: No

TrafficSources.member.N

The unique identifiers of one or more traffic sources. You can specify up to 10 traffic sources.

Type: Array of TrafficSourceIdentifier objects

Required: Yes

Errors

For information about the errors that are common to all actions, see Common Errors.

ResourceContention

You already have a pending update to an Amazon EC2 Auto Scaling resource (for example, an Auto Scaling group, instance, or load balancer).

HTTP Status Code: 500

ServiceLinkedRoleFailure

The service-linked role is not yet ready for use.

HTTP Status Code: 500

Examples

Example

This example attaches two VPC Lattice target groups, as specified by their ARNs, to the Auto Scaling group named my-asg.

Sample Request


https://autoscaling.amazonaws.com/?Action=AttachTrafficSources
&AutoScalingGroupName=my-asg
&TrafficSources.member.1.Identifier=arn:aws:vpc-lattice:us-west-2:123456789012:targetgroup/tg-0e2f2665eEXAMPLE
&TrafficSources.member.2.Identifier=arn:aws:vpc-lattice:us-west-2:123456789012:targetgroup/tg-8360a9e72EXAMPLE
&Version=2011-01-01
&AUTHPARAMS