CODEWITHSUNDEEP
amazon-web-servicesaws-cloudformationautoscalingamazon-elbaws-application-load-balancer
niketp
niketp

Reputation: 459

I cannot get my autoscaling group to reference my TargetGroup

I am able to launch a simple autoscaling group. However, the problem comes when I try to set up an Application Load Balancer to direct traffic to my various instances. First, I created my load balancer, it was simple as well. The problem is creating the target group and the listener. To my autoscaling group, I added the property:

    TargetGroupARNs:
      - !Ref AlbTargetGroup

Then, my target group is the following:

  AlbTargetGroup:
    Type: AWS::ElasticLoadBalancingV2::TargetGroup
    Properties:
     TargetType: ip 
     VpcId: ###########
     Protocol: HTTP 
     Port: 3000
     HealthCheckPath: /hello
     HealthCheckIntervalSeconds: 10
     HealthCheckTimeoutSeconds: 5
     HealthyThresholdCount: 2
     UnhealthyThresholdCount: 2

Note that I hard-coded by VpcId. I am deploying from the CLI. In the console, the error I am getting in the Stack is:

Provided Target Group 'arn:aws:elasticloadbalancing:...' has invalid target type. Please ensure all provided Target Groups have target type of instance

Upvotes: 2

Views: 3411

Answers (2)

Jose
Jose

Reputation: 11

TERRAFORM CASE

The answer by Typhlosaurus pointed me in the right direction. In my case, I was trying to do this same thing through Terraform, and I was getting the error

Provided Target Group (...) has invalid target type. Please ensure all provided target groups have target type of instance

This is because, as they pointed out, I was using in my Terraform configuration of the AutoScalingGroup, the attribute TargetGroupsArn, instead of the LoadBalancers one.

Upvotes: 0

Typhlosaurus
Typhlosaurus

Reputation: 1578

The link between Application LoadBalancer and AutoScalingGroup needs to be configured differently depending on whether the ALB TargetGroup use TargetType ip or instance. With instance you use:

TargetGroupARNs:
   - !Ref LoadBalancerTargetGroup

with ip the answer depends on the actual target. For instance with ECS you typically specify it in the Service definition:

LoadBalancers:
  - ContainerName: ContainerName
    ContainerPort: 8080
    TargetGroupArn: !Ref LoadBalancerTargetGroup

If you the instance type ASG reference to an ip ALBTG then you will get the Please ensure all provided Target Groups have target type of instance error.

Upvotes: 4

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