fix: use europe-west4 region for agentic_rag E2E tests

[eliasecchig]

Summary

• Route agentic_rag E2E tests to europe-west4 instead of europe-west1

Problem

E2E builds for agentic_rag with vertex_ai_vector_search fail because the Vector Search Collections beta API (vectorsearch_v1beta) returns a 501/404 error in europe-west1, indicating the endpoint is not available in that region.

Changes

• tests/cicd/test_e2e_deployment.py: Add agentic_rag to region routing logic so it uses europe-west4 where the API is supported

[gemini-code-assist]

Summary of Changes

Hello @eliasecchig, 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 addresses persistent failures in agentic_rag E2E tests that utilize vertex_ai_vector_search. The issue stemmed from the Vector Search Collections beta API not being available in the europe-west1 region, leading to 501/404 errors. The solution involves updating the test deployment logic to direct agentic_rag tests to the europe-west4 region, where the necessary API is fully supported, thereby ensuring test stability and reliability.

Highlights

• E2E Test Region Fix: Agentic RAG E2E tests are now routed to "europe-west4" to resolve "Vector Search Collections beta API" ("vectorsearch_v1beta") 501/404 errors encountered in "europe-west1".

Changelog

• tests/cicd/test_e2e_deployment.py
  • Added logic to route agentic_rag E2E tests to europe-west4.

Activity

• No specific activity (comments, reviews, progress) has been recorded for this pull request yet.

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[gemini-code-assist]

Code Review

This pull request correctly changes the region for agentic_rag E2E tests to europe-west4 to resolve an API availability issue. The implementation is correct. I've added one suggestion to refactor the region selection logic using a dictionary, which will improve maintainability and make it easier to add other agent-specific regions in the future.