AttachLoadBalancerTargetGroups
Note
This API operation is superseded by AttachTrafficSources, which
can attach multiple traffic sources types. We recommend using
AttachTrafficSources
to simplify how you manage traffic sources.
However, we continue to support AttachLoadBalancerTargetGroups
. You can
use both the original AttachLoadBalancerTargetGroups
API operation and
AttachTrafficSources
on the same Auto Scaling group.
Attaches one or more target groups to the specified Auto Scaling group.
This operation is used with the following load balancer types:
-
Application Load Balancer - Operates at the application layer (layer 7) and supports HTTP and HTTPS.
-
Network Load Balancer - Operates at the transport layer (layer 4) and supports TCP, TLS, and UDP.
-
Gateway Load Balancer - Operates at the network layer (layer 3).
To describe the target groups for an Auto Scaling group, call the DescribeLoadBalancerTargetGroups API. To detach the target group from the Auto Scaling group, call the DetachLoadBalancerTargetGroups API.
This operation is additive and does not detach existing target groups or Classic Load Balancers from the Auto Scaling group.
For more information, see Use Elastic Load Balancing to distribute traffic across the instances in your Auto Scaling group in the Amazon EC2 Auto Scaling User Guide.
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
- TargetGroupARNs.member.N
-
The Amazon Resource Names (ARNs) of the target groups. You can specify up to 10 target groups. To get the ARN of a target group, use the Elastic Load Balancing DescribeTargetGroups API operation.
Type: Array of strings
Length Constraints: Minimum length of 1. Maximum length of 511.
Pattern:
[\u0020-\uD7FF\uE000-\uFFFD\uD800\uDC00-\uDBFF\uDFFF\r\n\t]*
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 illustrates one usage of AttachLoadBalancerTargetGroups.
Sample Request
https://autoscaling.amazonaws.com/?Action=AttachLoadBalancerTargetGroups
&AutoScalingGroupName=my-asg
&TargetGroupARNs.member.1=arn:aws:elasticloadbalancing:us-east-1:123456789012:targetgroup/my-targets/1234567890123456
&Version=2011-01-01
&AUTHPARAMS
See Also
For more information about using this API in one of the language-specific Amazon SDKs, see the following: