Description
What happened?
If you change proxy_protocol to true for loadbalancers when using UpCloud and apply, it works and enables it.
If you change proxy_protocol to false for loadbalancers when using UpCloud and apply, it says that it will change outbound_proxy_protocol from "v2" to empty string, but it doesn't actually go through even though the apply says it completes without any errors. It's only when running with TF_LOG=debug that you'll see some warning message, but still no errors. See output below.
[WARN] Provider "provider[\"registry.terraform.io/upcloudltd/upcloud\"]" produced an unexpected new value for module.kubernetes.upcloud_loadbalancer_backend.lb_backend["public-http"], but we are tolerating it because it is using the legacy plugin SDK.
The following problems may be the cause of any confusing errors from downstream operations:
- .properties[0].outbound_proxy_protocol: was cty.StringVal(""), but now cty.StringVal("v2")
module.kubernetes.upcloud_loadbalancer_backend.lb_backend["public-http"]: Modifications complete after 0s [id=IDHERE/lb-backend-http]
2025-05-30T11:51:56.176+0200 [DEBUG] provider.stdio: received EOF, stopping recv loop: err="rpc error: code = Unavailable desc = error reading from server: EOF"
2025-05-30T11:51:56.181+0200 [DEBUG] provider: plugin process exited: path=.terraform/providers/registry.terraform.io/upcloudltd/upcloud/5.9.1/linux_amd64/terraform-provider-upcloud_v5.9.1 pid=9180
2025-05-30T11:51:56.181+0200 [DEBUG] provider: plugin exited
Apply complete! Resources: 0 added, 1 changed, 0 destroyed.
Now if you check the tfstate file, you'll see that outbound_proxy_protocol is still set to "v2", and if you try to apply again with Terraform, it will try to do the same changes again, so it actually never disables it.
Only way to disable it, is to manually enter the UpCloud dashboard and change the outbound_proxy_protocol in the loadbalancer to null.
What did you expect to happen?
I expect Terraform to disable the proxy protocol for UpCloud loadbalancers by changing the outbound_proxy_protocol to null when you set proxy_protocol to false.
How can we reproduce it (as minimally and precisely as possible)?
Enable proxy protocol for loadbalancer on UpCloud using Terraform. Then try to disable it.
OS
Ubuntu 22
Version of Ansible
ansible [core 2.16.11]
Version of Python
3.10.12
Version of Kubespray (commit)
Network plugin used
calico
Full inventory with variables
Don't want to share, contains sensitive information.
Command used to invoke ansible
Just used terraform
Output of ansible run
did not use ansible, just used terraform
Anything else we need to know
No response