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Use N4 (gen4) machines as default to create GKE system nodepool#5402

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SwarnaBharathiMantena merged 1 commit into
GoogleCloudPlatform:developfrom
SwarnaBharathiMantena:swarnabm/gen4_system_nodepools
Mar 26, 2026
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Use N4 (gen4) machines as default to create GKE system nodepool#5402
SwarnaBharathiMantena merged 1 commit into
GoogleCloudPlatform:developfrom
SwarnaBharathiMantena:swarnabm/gen4_system_nodepools

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@SwarnaBharathiMantena SwarnaBharathiMantena commented Mar 25, 2026 •
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Transition from E2 VMs to N4 (Gen4) for the default system nodepool machines in all new GKE deployments.

@SwarnaBharathiMantena SwarnaBharathiMantena added the release-improvements Added to release notes under the "Improvements" heading. label Mar 25, 2026
@SwarnaBharathiMantena SwarnaBharathiMantena requested a review from a team as a code owner March 25, 2026 12:08
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Summary of Changes

Hello, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request updates the default machine type used for GKE system nodepools within the gke-cluster module. The change transitions from the older E2 series to the newer N4 (Gen4) series, aiming to leverage improved performance or efficiency for core cluster components in all new GKE deployments.

Highlights

  • Default Machine Type Upgrade: The default machine type for GKE system nodepools has been upgraded from 'e2-standard-4' to 'n4-standard-4' (Gen4) for all new deployments.
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Code Review

This pull request updates the default machine type for the system node pool in the GKE cluster module from "e2-standard-4" to "n4-standard-4". This change is reflected in both the variables.tf file and the README.md documentation. There are no review comments to address.

@SwarnaBharathiMantena SwarnaBharathiMantena merged commit b0b99dd into GoogleCloudPlatform:develop Mar 26, 2026
16 of 73 checks passed
@SwarnaBharathiMantena SwarnaBharathiMantena added the release-breaking-changes Prevents "smooth" re-deploy across versions label Mar 26, 2026
@SwarnaBharathiMantena SwarnaBharathiMantena changed the title Use gen 4 machines to create GKE system nodepool Use N4 (gen4) machines to create GKE system nodepool Mar 26, 2026
@SwarnaBharathiMantena SwarnaBharathiMantena changed the title Use N4 (gen4) machines to create GKE system nodepool Use N4 (gen4) machines as default to create GKE system nodepool Mar 26, 2026
mufaqam-gcl pushed a commit to mufaqam-gcl/cluster-toolkit that referenced this pull request Mar 26, 2026
@SwarnaBharathiMantena @mufaqam-gcl
Use gen 4 machines to create GKE system nodepool (GoogleCloudPlatform…
5c6e51a 
…#5402)
FIoannides pushed a commit to FIoannides/cluster-toolkit that referenced this pull request Mar 27, 2026
@SwarnaBharathiMantena @FIoannides
Use gen 4 machines to create GKE system nodepool (GoogleCloudPlatform…
09d1d85 
…#5402)
@aslam-quad aslam-quad mentioned this pull request Mar 30, 2026
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@gokamesh gokamesh gokamesh approved these changes

@vikramvs-gg vikramvs-gg vikramvs-gg approved these changes

@samskillman samskillman Awaiting requested review from samskillman

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