feat(cgroup): add support for configuring Linux cgroup mode in autopilot clusters

[Ameausoone]

This update introduces a new linux_cgroup_mode variable to specify the cgroup hierarchy mode for autopilot Kubernetes nodes. Supported values include CGROUP_MODE_UNSPECIFIED, CGROUP_MODE_V1, and CGROUP_MODE_V2. Adjusted cluster configurations to include dynamic management of the Linux node configuration based on this variable.

• make build

Closes #2264

[Ameausoone]

      ~ node_pool_auto_config {
            # (1 unchanged attribute hidden)

          ~ linux_node_config {
              ~ cgroup_mode = "CGROUP_MODE_V2" -> "CGROUP_MODE_V1"
            }

          + network_tags {}
        }

....
│ Error: googleapi: Error 400: Setting cgroup_mode to v1 is not allowed for clusters created with version 1.31.4-gke.1372000.
│

I think this issue will be quickly deprecated

[apeabody]

      ~ node_pool_auto_config {
            # (1 unchanged attribute hidden)

          ~ linux_node_config {
              ~ cgroup_mode = "CGROUP_MODE_V2" -> "CGROUP_MODE_V1"
            }

          + network_tags {}
        }

....
│ Error: googleapi: Error 400: Setting cgroup_mode to v1 is not allowed for clusters created with version 1.31.4-gke.1372000.
│

I think this issue will be quickly deprecated

Yes, here is the plan for Standard: https://cloud.google.com/kubernetes-engine/docs/how-to/migrate-cgroupv2#transition-plan I've requested additional clarification for Autopilot.

Ref:
https://cloud.google.com/kubernetes-engine/docs/release-schedule#schedule-for-release-channels

[apeabody]

/gcbrun

[apeabody]

/gcbrun

[apeabody]

/gcbrun

[apeabody]

Thanks for the contribution @Ameausoone!

We would also want to add example/test coverage for this changes similar to #2273

[apeabody]

Hi @Ameausoone!

Could you please add to an example, so we have test coverage for this changes. Could be similar to #2273

Thanks!

[Ameausoone]

@apeabody ok I fixed the network_tags block issue, and add examples.

[apeabody]

/gcbrun

[Ameausoone]

BTW: I'm trying to use module-swapper to execute integration tests locally but no way to find the good args.

I run : docker run --rm -v "$(pwd):/workspace/" gcr.io/cloud-foundation-cicd/cft/developer-tools:1.23 module-swapper

It outputs :

...
2025/03/11 12:52:01 Modifications made to file /workspace/examples/simple_zonal_with_hub/main.tf
....

But there is no modification..

[apeabody]

/gcbrun

[apeabody]

/gcbrun

[apeabody]

Thanks for the contribution @Ameausoone!