13. Evolution
13. Evolution
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13.1 Anticipated Extensions
13.1.1 Additional Resource Types
The architecture is designed to extend to additional resource types:
| Resource Type | Protocol | Anticipated Support |
|---|---|---|
| Windows RDP | RDP | Near-term (Teleport native) |
| Web applications | HTTPS | Near-term (Teleport App Access) |
| Cloud consoles | HTTPS | Medium-term (AWS, Azure, GCP) |
| CI/CD systems | Various | Medium-term |
| Git repositories | SSH/HTTPS | Future consideration |
| Message queues | Various | Future consideration |
13.1.2 Windows RDP Access
Windows server access follows similar patterns:
| Component | Implementation |
|---|---|
| Agent | Teleport Windows Desktop Service |
| Authentication | Teleport certificates → AD integration |
| Recording | Screen capture |
| RBAC | Label-based, similar to SSH |
13.1.3 Web Application Access
Internal web applications can be proxied:
| Benefit | Description |
|---|---|
| SSO | Application doesn't need OIDC integration |
| Session recording | HTTP request logging |
| Access control | Teleport RBAC for application access |
| Audit | Centralized access logs |
13.1.4 Cloud Console Access
Future capability for cloud provider console access:
| Provider | Method |
|---|---|
| AWS | Assume role via Teleport |
| Azure | Azure AD app integration |
| GCP | Workload identity federation |
13.2 Scalability Considerations
13.2.1 Teleport Cluster Scaling
As usage grows, Teleport components scale:
| Component | Scaling Method | Consideration |
|---|---|---|
| Proxy Service | Horizontal scaling | Load balancer required |
| Auth Service | Horizontal with shared state | Backend database sizing |
| Recording storage | Object storage scaling | S3/GCS auto-scales |
| Agents | Per-resource deployment | Management automation |
13.2.2 High Availability
Production deployment requires HA:
| Component | HA Strategy |
|---|---|
| Auth Service | Multiple replicas, shared backend |
| Proxy Service | Multiple replicas, load balanced |
| Backend database | PostgreSQL cluster or etcd cluster |
| Recording storage | Multi-AZ object storage |
13.2.3 Multi-Region Deployment
For global organizations:
Regional proxies reduce latency while maintaining centralized control.
13.2.4 Performance Considerations
| Metric | Target | Scaling Factor |
|---|---|---|
| Concurrent sessions | 10,000+ | Proxy replicas |
| Authentication latency | <500ms | Auth replicas, caching |
| Recording write throughput | 100MB/s+ | Storage backend |
| Audit query performance | <1s for recent events | Index optimization |
13.3 Migration Pathways
13.3.1 Phased Adoption
Organizations can adopt incrementally:
Phase 1: SSH Access
- Deploy Teleport for SSH
- Enroll critical servers first
- Maintain bastion as fallback
Phase 2: Certificate Migration
- Enable Vault SSH CA
- Migrate from SSH keys to certificates
- Disable direct key authentication
Phase 3: Database Access
- Add database agents
- Configure Vault database engines
- Migrate from static credentials
Phase 4: Kubernetes Access
- Deploy Kubernetes agents
- Configure exec/attach policies
- Enable eBPF recording
Phase 5: JIT Access
- Enable access request workflows
- Configure approval policies
- Remove standing elevated access
13.3.2 Legacy System Coexistence
Some systems may not migrate:
| Scenario | Approach |
|---|---|
| Legacy SSH system | Maintain separate access (documented exception) |
| Unsupported database | Service account with static credentials (RFC-WORKLOAD-IDENTITY) |
| Third-party SaaS | Native SaaS access controls |
13.3.3 Fallback Procedures
During transition, maintain fallback:
| Fallback | Use Case | Sunset Criteria |
|---|---|---|
| Bastion host | Teleport unavailable | Teleport HA verified |
| Static DB credentials | Vault unavailable | Vault HA verified |
| Direct kubectl | Teleport unavailable | Teleport HA verified |
Fallbacks should be time-limited and eventually removed.
13.4 Feature Roadmap Alignment
13.4.1 Teleport Roadmap
Monitor Teleport releases for:
| Feature | Potential Benefit |
|---|---|
| Improved Vault integration | Native SSH CA support |
| Enhanced eBPF capabilities | Broader session capture |
| SCIM support | Automated user provisioning |
| Policy as code | Enhanced GitOps for policies |
13.4.2 Vault Roadmap
Monitor Vault releases for:
| Feature | Potential Benefit |
|---|---|
| Database engine enhancements | New database support |
| SSH engine improvements | Better certificate handling |
| Kubernetes auth improvements | Simplified integration |
13.4.3 Integration Improvements
Future integration enhancements:
| Integration | Enhancement |
|---|---|
| Teleport ↔ Vault | Deeper native integration |
| Teleport ↔ Keycloak | SCIM for user sync |
| Backstage ↔ Teleport | Self-service access requests |
13.5 Deprecation Considerations
13.5.1 Component Deprecation
If components need replacement:
| Component | Deprecation Path |
|---|---|
| Teleport | Evaluate alternatives, migration plan, parallel operation |
| Vault SSH engine | Alternative CA, certificate migration |
| Vault DB engine | Alternative credential management |
13.5.2 Protocol Evolution
As protocols evolve:
| Change | Impact | Mitigation |
|---|---|---|
| SSH protocol updates | Agent updates | Maintain agent currency |
| Database protocol changes | Agent updates | Monitor database releases |
| Kubernetes API changes | Agent updates | Track Kubernetes releases |
13.5.3 Organizational Change
The architecture accommodates organizational evolution:
| Change | Accommodation |
|---|---|
| Team restructuring | Update Keycloak/Teleport role mappings |
| New business units | Add roles, extend RBAC |
| Mergers/acquisitions | Federate identity, extend access |
| Compliance changes | Adjust recording retention, policies |
Document Navigation
| Previous | Index | Next |
|---|---|---|
| ← 12. Rationale | Table of Contents | Appendix A: Glossary → |
End of Section 13