alicloud_ecs_key_pair_attachment rewrites in for_each loop

[igorfraa]

Terraform Version

Terraform v1.3.7
on darwin_arm64
+ provider registry.terraform.io/aliyun/alicloud v1.215.0

(also other versions)

Affected Resource(s)

• alicloud_ecs_key_pair_attachment
• alicloud_instance (as a target)

Expected Behavior

Multiple ssh keys attached (binded in Alicloud terms) to the ECS instance.

Actual Behavior

One or more keys got binded but never all at once.
Note: It seems the longer the list, the more keys got attached (up to 3-5 keys from list of 20). Attachments are random.

With force=true only the last key attaches through all the cases. Though this can be explained throughout the docs.

Terraform Configuration Files

variable "ssh_keys" {
  type        = map(string)
  description = "Ssh keys"
  default = {
  user1 = "ssh-rsa AAAAB3 ..."
  user2 = "ssh-rsa AAAAB3 ..."
  user3 = "ssh-rsa AAAAB3 ..."
  user4 = "ssh-rsa AAAAB3 ..."
  }
}
resource "alicloud_ecs_key_pair" "ssh_keys" {
  for_each      = var.ssh_keys
  key_pair_name = each.key
  public_key    = each.value
}

resource "alicloud_ecs_key_pair_attachment" "ssh_keys" {
  for_each      = var.ssh_keys
  key_pair_name = alicloud_ecs_key_pair.ssh_keys[each.key].key_pair_name
  instance_ids  = var.instance_ids
  force         = false
}

Steps to Reproduce

1. terraform apply

[igorfraa]

please note if any more information needed

[igorfraa]

carefully reading corresponding resource I didn't get how is this supposed to go.

Dear Developer He Guimin (@xiaozhu36), would you have a chance to look into?

source link

[xiaozhu36]

Hi @igorfraa I am sorry for late reply, what do you mean "rewrites"? Do the multi key pairs can not be attached multi ecs instances accuratly?

[igorfraa]

Hi @xiaozhu36
yes - multiple key pairs are not attached correctly.

If I recall correctly, in some tries I've seen more then one key pair attached, up to 3 or 5 random keys out of the 20 in list.

[xiaozhu36]

HI @igorfraa Based on your tf template, I made a test with 5 instance ids, and it can works well and did not happen your issue. Could please share me more details? like tf command outputs and diff logs after running it.