feat(ci): remove vcluster/EKS trigger jobs; keep one GKE nightly

João Alexandre Cunharequested to merge
feature/k3d-remove-native into master

What does this MR do?

Once the k3d matrix (!4967 (merged)–!4983 (merged)) is proven stable: removes all vcluster environments and the trigger_review_* manual gates, keeping a single GKE nightly job using GCP's stable release channel (auto-upgrades K8s — no vcluster needed).

Removes:

  • All vcluster environment configs (.gitlab/ci/environments/vcluster.*.yml)
  • trigger_review_current and trigger_review_secondary manual gate jobs
  • Per-version vcluster trigger jobs (trigger-v133, trigger-v134, trigger-v135, etc.)
  • EKS native environment (.gitlab/ci/environments/eks.134.amd64.gitlab-ci.yml)
  • vcluster-review-apps.gitlab-ci.yml base template

Keeps:

  • One scheduled nightly GKE v1.35 job (real cloud provider validation, GCP manages node upgrades)

WIP — implementation pending. Will be fleshed out once !4983 (merged) is merged.

Implementation plan

This MR is part of a sequenced implementation. See issue #6421 for the full context and rationale.

# MR Description Status
1 !4967 (merged) k3d PoC — single environment (v1.35 amd64, NGINX ingress) Complete
2 !4984 (merged) Switch networking to Envoy Gateway API Complete
3 !4982 (merged) Extend K8s version matrix (v1.33, v1.34, v1.35 ARM64) Complete
4 !4983 (merged) Add manual full suite QA jobs Complete
5 !4985 (merged) Remove vcluster/EKS environments We are here

Each MR targets the previous branch and is blocked by it (see MR dependencies).

Related issues

Closes #6421

Author checklist

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Required

  • Merge Request Title and Description are up to date, accurate, and descriptive.
  • MR targeting the appropriate branch.
  • MR has a green pipeline.
  • Documentation created/updated.
  • Tests added/updated, and test plan for scenarios not covered by automated tests.
  • Equivalent MR/issue for omnibus-gitlab opened.

Reviewers checklist

Edited by Jason Plum

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