Add support for new kubelet and sysctl configuration options in GKE

[Unichron]

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Description

As stated in the January 23 release notes (https://cloud.google.com/kubernetes-engine/docs/release-notes#January_23_2025), it is now possible to configure these new settings:

Kubelet

• asdf
• containerLogMaxSize
• containerLogMaxFiles
• imageGcLowThresholdPercent
• imageGcHighThresholdPercent
• imageMinimumGcAge
• imageMaximumGcAge (1.30.7-gke.1076000 and later, 1.31.3-gke.1023000 and later)
• allowedUnsafeSysctls (1.32.0-gke.1448000 and later)

Sysctl

• kernel.shmmni
• kernel.shmmax
• kernel.shmall
• net.netfilter.nf_conntrack_acct (1.32.0-gke.1448000 and later)
• net.netfilter.nf_conntrack_max (1.32.0-gke.1448000 and later)
• net.netfilter.nf_conntrack_buckets (1.32.0-gke.1448000 and later)
• net.netfilter.nf_conntrack_tcp_timeout_close_wait (1.32.0-gke.1448000 and later)
• net.netfilter.nf_conntrack_tcp_timeout_established (1.32.0-gke.1448000 and later)
• net.netfilter.nf_conntrack_tcp_timeout_time_wait (1.32.0-gke.1448000 and later)

Please add support for them in the provider.

New or Affected Resource(s)

• google_container_cluster
• google_container_node_pool

Potential Terraform Configuration

References

No response