stackit_server produced an unexpected new value: .keypair_name: was xyz, but now null.

[david-mey-STACKIT]

Description

╷
│ Error: Provider produced inconsistent result after apply
│
│ When applying changes to
│ module.testproject["access-e2e-alb-v2b2-new-dev"].stackit_server.backend_servers["echo-1"],
│ provider "provider["registry.terraform.io/stackitcloud/stackit"]"
│ produced an unexpected new value: .keypair_name: was
│ cty.StringVal("ssh-backend-server-access-e2e-alb-v2b2-new-dev"), but now
│ null.
│
│ This is a bug in the provider, which should be reported in the provider's
│ own issue tracker.
╵

Steps to reproduce

resource "stackit_key_pair" "keypair" {
  name       = "ssh-backend-server-${var.project_name}"
  public_key = "ssh-rsa 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"
}

resource "stackit_server" "backend_servers" {
  for_each   = var.backend_servers
  project_id = stackit_resourcemanager_project.test_project.project_id
  boot_volume = {
    size                  = 20
    source_type           = "image"
    source_id             = each.value.image_id
    delete_on_termination = true
  }
  name              = each.key
  machine_type      = each.value.flavor
  keypair_name      = stackit_key_pair.keypair.name
  availability_zone = each.value.availability_zone
  network_interfaces = [
    stackit_network_interface.nic[each.key].network_interface_id
  ]
  user_data = templatefile("${path.module}/userdata/userdata.yaml", {
    custom_ca_pem   = var.custom_ca_pem
    private_key_pem = var.private_key_pem
  })

  depends_on = [stackit_network.test_project_subnetwork, stackit_key_pair.keypair]
}

1. Run terraform apply

Actual behavior

keypair is "null" after apply, but its actually in the VM and I can login

Expected behavior

no error

Environment

• OS: ubuntu:24.04
• Terraform version (see terraform --version): v1.10.5
• Version of the STACKIT Terraform provider: v0.71.0

Additional information

The ssh key is actually in the VM and I can log in