Apply fails to replace a node group (for adding a launch template) with "NodeGroup already exists with name internal-t2_medium and cluster name development-pod01"

[dresnick-sf]

I have issues

I'm submitting a...

• bug report
• feature request
• support request - read the FAQ first!
• kudos, thank you, warm fuzzy

What is the current behavior?

Node group replacement fails with "Error: error creating EKS Node Group (clustername:nodegroupname): ResourceInUseException: NodeGroup already exists with name nodegroupname and cluster name clustername"

Terraform plan indicates that the node groups need to be replaced:

Resource actions are indicated with the following symbols:
+ create
+/- create replacement and then destroy

...

  # module.eks.module.eks.module.node_groups.aws_eks_node_group.workers["1"] must be replaced
+/- resource "aws_eks_node_group" "workers" {
...

  # module.eks.module.eks.module.node_groups.random_pet.node_groups["1"] must be replaced
+/- resource "random_pet" "node_groups" {

Application of the plan fails

module.eks.module.eks.module.node_groups.random_pet.node_groups["1"]: Creating...
module.eks.module.eks.module.node_groups.random_pet.node_groups["1"]: Creation complete after 0s [id=immortal-parrot]
module.eks.module.eks.module.node_groups.aws_eks_node_group.workers["1"]: Creating...

Error: error creating EKS Node Group (clustername:nodegroupname): ResourceInUseException: NodeGroup already exists with name nodegroupname and cluster name clustername
{
  RespMetadata: {
    StatusCode: 409,
    RequestID: "abc"
  },
  ClusterName: "clustername",
  Message_: "NodeGroup already exists with name nodegroupname and cluster name clustername",
  NodegroupName: "nodegroupname"
}

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

I added a launch template to the definition of an existing node group by adding this:

      launch_template_id      = aws_launch_template.default.id
      launch_template_version = aws_launch_template.default.default_version

What's the expected behavior?

The node group is replaced and the new node group has a launch template.

Are you able to fix this problem and submit a PR? Link here if you have already.

Environment details

• Affected module version:
  terraform-aws-modules/eks/aws: 13.2.1
  kubernetes/1.13.3
  local/2.0.0
  null/3.0.0
  template/2.2.0
  random/3.0.1
  aws/3.24.1

• OS: amazon linux 2

• Terraform version: 0.14.2

Any other relevant info

[dresnick-sf]

This might be related to #1152

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[stale]

This issue has been automatically closed because it has not had recent activity since being marked as stale.

[github-actions]

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