feat(make): add make install-csi, make uninstall-csi, and ARGS support for make e2e-test

[meet2mky]

Description

This PR introduces Makefile targets and helper scripts to streamline installing and uninstalling custom builds of the Cloud Storage FUSE CSI driver on target GKE clusters, as well as enabling argument forwarding to integration tests.

Key Changes

1. CSI Driver Installation & Management:

   • Added make install-csi and tools/scripts/install_csi.sh:
     • Automatically derives CLUSTER_PROJECT, CLUSTER_NAME, and CLUSTER_LOCATION from the active kubectl context (with manual CLI override support).
     • Resolves boskos-compliant staging version format: prow-gob-internal-boskos-csi-${CSI_COMMIT_SHA}-fuse-${GCSFUSE_COMMIT_SHA}.
     • Performs pre-install due diligence (validates cluster connectivity, checks for existing managed add-on or self-installed driver).
     • Clones gcs-fuse-csi-driver, builds multi-arch container images from source, pushes to Artifact Registry, and installs manifests.
     • Prints a summary of all 4 deployed container images (Driver, Sidecar Mounter, Webhook, Metadata Prefetch).
   • Added make uninstall-csi and tools/scripts/uninstall_csi.sh:
     • Safely checks installation type (managed vs. self-installed) before uninstallation and cleans up cluster resources.

2. Integration Test Improvements:

   • Updated make e2e-test to forward arguments directly to improved_run_e2e_tests.sh via the ARGS variable (e.g. make e2e-test ARGS="--run-package streaming_writes --skip-emulator").

3. Documentation & Help:

   • Expanded make help to document all targets, active defaults, and configurable parameters.

Testing

• Verified make install-csi on GKE test cluster (mohitkyadav-cluster in gcs-fuse-test):
  • Verified container image builds, push, manifest generation, and deployment.
  • Confirmed all pods in gcs-fuse-csi-driver namespace (controller, webhook, and node daemonsets across 20 nodes) reach Running state.
• Verified make uninstall-csi clean resource deletion.
• Verified make e2e-test ARGS="--help" and argument forwarding.

[gemini-code-assist]

Code Review

This pull request introduces helper targets and scripts (install-csi and uninstall-csi) to manage the installation and uninstallation of the Cloud Storage FUSE CSI driver on GKE clusters, along with a detailed help target in the Makefile. Feedback on these changes highlights potential issues with the removal of automatic zone/region retrieval in the e2e-test target, and recommends wrapping the interactive confirmation prompts in both scripts with a TTY check to prevent failures in non-interactive CI/CD environments.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 83.92%. Comparing base (872920d) to head (8948738).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #5028      +/-   ##
==========================================
+ Coverage   83.90%   83.92%   +0.02%     
==========================================
  Files         176      176              
  Lines       21546    21546              
==========================================
+ Hits        18078    18083       +5     
+ Misses       2769     2766       -3     
+ Partials      699      697       -2     

Flag	Coverage Δ
unittests	83.92% <ø> (+0.02%)	⬆️

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[github-actions]

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