(server): unnecessary updates when using network with 1.44.1

[binaryfields]

What happened?

Issue #556 does not seem to be fixed by #593.

I tried creating a server with network and public_network attributes and with each apply, TF will attempt to destroy and recreate the network.

# hcloud_server.node[1] will be updated in-place
  ~ resource "hcloud_server" "node" {
        id                         = "xxx"
        name                       = "node-2"
        # (17 unchanged attributes hidden)

      - network {
          - alias_ips   = [] -> null
          - ip          = "10.0.0.4" -> null
          - mac_address = "86:00:00:4d:83:aa" -> null
          - network_id  = xxx -> null
        }
      + network {
          + alias_ips   = (known after apply)
          + ip          = (known after apply)
          + mac_address = (known after apply)
          + network_id  = xxx
        }

        # (1 unchanged block hidden)
    }

What did you expect to happen?

No changes should be reported.

Please provide a minimal working example

resource "hcloud_server" "node" {
  count = var.node_count
  name  = "${var.cluster_name}-node-${count.index + 1}"

  server_type = var.node_type
  image       = var.instance_image
  datacenter  = var.datacenter
  ssh_keys    = [var.ssh_key_name]

  network {
    network_id = hcloud_network.private.id
  }

  public_net {
    ipv4_enabled = false
    ipv6_enabled = false
  }

  depends_on = [
    hcloud_network_subnet.private_subnet
  ]
}

terraform {
  required_providers {
    hcloud = {
      source  = "hetznercloud/hcloud"
      version = ">= 1.44.1"
    }
  }
}

[apricote]

This seems to be the same issue as #650 (comment), can you try the fix mentioned in that comment?

[binaryfields]

Adding alias_ips = [] to the network config of the server resource worked great. Thanks for the workaround.

[apricote]

I have added a note to the server docs for this: #804

[github-actions]

This issue has been marked as stale because it has not had recent activity. The bot will close the issue if no further action occurs.

[jooola]

Closing as duplicate of #650