[E2E] Add aibrix profile for E2E testing framework

[Xunzhuo]

Description

Add a new aibrix profile to the E2E testing framework to test Semantic Router integration with vLLM AIBrix.

Background

The E2E testing framework introduced in #655 provides an extensible profile-based architecture. We need to add an aibrix profile to test Semantic Router deployment and functionality with vLLM AIBrix platform.

Tasks

• Create e2e/profiles/aibrix/ directory structure
• Implement Profile interface for aibrix
  • Setup: Deploy vLLM AIBrix components
  • Setup: Deploy Semantic Router with AIBrix integration
  • Setup: Configure AIBrix-specific settings
  • Teardown: Clean up AIBrix resources
• Implement test cases:
  • Basic health check with AIBrix
  • AIBrix-specific feature verification
  • Request routing through AIBrix
  • Integration with AIBrix services
  • Performance and scalability testing
• Add documentation for aibrix profile usage
• Update CI workflow to run aibrix tests

Implementation Details

Profile Structure

type Profile struct {
    verbose bool
}

func (p *Profile) Setup(ctx context.Context, opts *framework.SetupOptions) error {
    // 1. Deploy vLLM AIBrix platform
    // 2. Deploy Semantic Router with AIBrix backend
    // 3. Configure AIBrix-specific features
    // 4. Configure integration settings
}

Test Cases

1. AIBrix Health Check: Verify AIBrix platform is healthy
2. Feature Verification: Test AIBrix-specific features
3. Request Routing: Verify routing through AIBrix
4. Service Integration: Test integration with AIBrix services
5. Performance: Measure performance with AIBrix

Acceptance Criteria

• AIBrix profile can be run with make e2e-test PROFILE=aibrix
• All test cases pass successfully
• Documentation is complete and clear
• CI integration works correctly

References

• E2E Framework PR: [Feat] Add automate e2e test framework for extensible integration tests #655
• vLLM AIBrix Documentation: (add link)
• E2E Framework README: e2e/README.md

Related Issues

Part of the E2E testing framework expansion effort.

• Related to [E2E] Add Istio profile for E2E testing framework #656 (Istio profile)
• Related to [E2E] Add production-stack profile for E2E testing framework #657 (production-stack profile)
• Related to [E2E] Add llm-d profile for E2E testing framework #658 (llm-d profile)
• Related to [E2E] Add dynamo profile for E2E testing framework #659 (dynamo profile)

[Xunzhuo]

/area test-and-release
/priority P2
/label enhancement
/label e2e
/label help wanted

[yehudit1987]

/assign