RFC-TENANT-SECURITY-0001                                        Section 11
Category: Standards Track                                        Evolution

This section documents anticipated evolution paths, future considerations, and planned enhancements for the Tenant Application Security Architecture.

11.2 Gateway API Migration

11.2.1 Current State

The architecture currently uses BunkerWeb with Ingress API patterns.

11.2.2 Future State

Kubernetes Gateway API is the successor to the Ingress API, offering:

Capability	Benefit
Role-based resource model	Clearer separation of concerns
Advanced routing	Header-based, weight-based routing
Policy attachment	Standardized policy resources
Multi-tenancy support	Better namespace isolation

11.2.3 Migration Considerations

Consideration	Assessment
BunkerWeb Gateway API support	Monitor for future support
Alternative controllers	Traefik, Envoy Gateway support Gateway API
Coexistence	Gateway API can coexist with Ingress
WAF integration	Evaluate WAF options for Gateway API

11.2.4 Migration Path

11.3 Advanced Bot Protection

11.3.1 Current Capabilities

Challenge-based verification (CAPTCHA, JavaScript)
IP reputation blocking
Rate limiting

11.3.2 Future Enhancements

Enhancement	Benefit
Behavioral analysis	Detect sophisticated bots
Device fingerprinting	Identify repeat offenders
ML-based detection	Adaptive threat detection
Bot management API	Programmatic bot classification

11.3.3 Considerations

Consideration	Assessment
Privacy implications	Fingerprinting raises privacy concerns
ML model maintenance	Requires ongoing training
False positive risk	Sophisticated detection may block legitimate users

11.4 API Security Enhancements

11.4.1 Current Coverage

WAF provides basic API protection (see Section 6.8).

11.4.2 Future Enhancements

Enhancement	Benefit
API schema validation	Enforce OpenAPI contracts
API discovery	Automatic API inventory
API-specific rate limiting	Per-operation quotas
GraphQL protection	Query depth limiting

11.4.3 Integration Points

Enhancement	Integration With
Schema validation	API Gateway or application
API discovery	RFC-DEVELOPER-PLATFORM
GraphQL protection	Application-specific

11.5 Zero Trust Network Evolution

11.5.1 Current Model

Network policies provide namespace isolation
Service mesh provides mTLS (RFC-WORKLOAD-IDENTITY)

11.5.2 Future Enhancements

Enhancement	Benefit
Identity-aware policies	Policies based on workload identity
Micro-segmentation	Pod-level isolation
Continuous verification	Runtime identity validation

11.5.3 Integration with RFC-WORKLOAD-IDENTITY

Current	Future
Network policy + mesh mTLS	Unified identity-based access
Separate policy layers	Integrated policy model

11.6 Compliance Automation

11.6.1 Current State

Manual compliance documentation
Periodic policy audits

11.6.2 Future Enhancements

Enhancement	Benefit
Policy-as-code validation	Automated compliance checks
Continuous compliance	Real-time compliance status
Audit automation	Automated evidence collection
Compliance dashboards	Visibility into compliance posture

11.6.3 Tools to Evaluate

Tool Category	Purpose
Policy engines	OPA/Gatekeeper for policy enforcement
Compliance scanners	Automated compliance assessment
SIEM integration	Security event correlation

11.7 Self-Service Integration

11.7.1 Current Model

Network policies managed by platform team
WAF exceptions require security team approval

11.7.2 Future Model (RFC-DEVELOPER-PLATFORM)

Capability	Description
Network policy templates	Pre-approved policy patterns
WAF exception requests	Workflow for exception approval
Rate limit configuration	Self-service within bounds
Compliance visibility	Tenant compliance dashboard

11.7.3 Guardrails

Self-service MUST operate within guardrails:

Guardrail	Enforcement
Cannot disable WAF	Platform policy
Cannot remove default-deny	Platform policy
Cannot allow unrestricted egress	Approval required
Cannot access other tenants	Technical enforcement

11.8 Observability Enhancements

11.8.1 Current Capabilities

WAF logging
Network flow logs
Basic metrics

11.8.2 Future Enhancements

Enhancement	Benefit
Security analytics	Threat pattern detection
Attack visualization	Visual attack analysis
Predictive alerting	Early threat detection
Correlation	Cross-layer event correlation

11.9 Standards Evolution

11.9.1 Standards to Monitor

Standard	Relevance
OWASP CRS updates	New attack signatures
Kubernetes Gateway API	Ingress evolution
OWASP API Security	API protection guidance
NIST guidelines	Compliance requirements

11.9.2 RFC Updates

This RFC SHOULD be reviewed and updated when:

Trigger	Action
Major OWASP CRS release	Review WAF configuration
Gateway API GA	Evaluate migration
New compliance requirements	Update controls
Technology changes	Re-evaluate decisions

11.10 Deprecation Considerations

11.10.1 Components with Deprecation Risk

Component	Risk	Mitigation
Ingress API	Being replaced by Gateway API	Monitor BunkerWeb support
OWASP CRS v3	v4 is current	Stay on latest version

11.10.2 Deprecation Process

When deprecating architecture elements:

Step	Action
Announcement	Document deprecation in RFC update
Migration path	Provide clear migration guidance
Transition period	Allow time for migration
Removal	Remove deprecated elements

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← 10. Rationale	Table of Contents	Appendix A: Glossary →

End of Section 11

11. Evolution