Cycle when removing first item of worker_groups_launch_template list

[codingthecloud]

I have issues

Hi, I am having an issue whenever I try to delete the first item of the worker_groups_launch_template list. Could anybody tell me why it is behaving like this?

I get the below error:
Error: Cycle: module.eks.aws_launch_template.workers_launch_template[1] (destroy), module.eks.random_pet.workers_launch_template[1] (destroy), module.eks.aws_launch_template.workers_launch_template[0] (destroy deposed 630f0acb), module.eks.aws_iam_instance_profile.workers_launch_template[1] (destroy), module.eks.aws_launch_template.workers_launch_template[0], module.eks.random_pet.workers_launch_template[0], module.eks.aws_autoscaling_group.workers_launch_template[0], module.eks.aws_autoscaling_group.workers_launch_template[0] (destroy deposed 93527070), module.eks.random_pet.workers_launch_template[0] (destroy deposed ad930592)

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What is the current behavior?

Given:

worker_groups_launch_template =  [
     { --> I tried removing this element
         additional_security_group_ids = [
             "sg-id1"
          ]
         asg_desired_capacity          = 1
         asg_max_size                  = 5
         instance_type                 = "t2.medium"
         name                          = "application"

         subnets                       = [
             "subnet-id1","subnet-id2",
          ]
      },
     {
         additional_security_group_ids = [
             "sg-id2",
          ]
         asg_desired_capacity          = 1
         asg_max_size                  = 5
         instance_type                 = "t2.small"
         name                          = "monitoring"

         subnets                       = [
             "subnet-id1","subnet-id2",
          ]
      },
  ]

If I delete the first item from the list. I get the Cycle error.

If this is a bug, how to reproduce? Please include a code sample if relevant.

Create a list of worker_groups_launch_template and delete the first item in the array.

What's the expected behavior?

Recreate the node groups correctly.

Environment details

• Affected module version: eks
• OS: Amazon Linux 2 Ami
• Terraform version: 0.13.1

Any other relevant info

[daganida88]

Having the same issue.

[barryib]

@daganida88 @codingthecloud Can you please have a look at #1043 and tell me if it solves your issue.

BTW, keep in mind that changing the order of workers group is a destructive operation. All workers group are destroyed and recreated. If you want to do this safely, you should move then in state with terraform state mv.

This will be fixed when we use map instead of list for workers groups. There is an ongoing PR #858 for that.

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