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Add dual-mode deployment addendums for all 6 products

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P1 route: 16 pts (template, full docker-compose + install script)
P2 drift: 17 pts (pgmq, local CA for mTLS)
P3 alert: 19 pts (Lambda→Fastify, DynamoDB→PG JSONB)
P4 portal: 18 pts (Step Functions→cron, Aurora→PG+pgvector)
P5 cost: 19 pts (EventBridge→agent/polling, DynamoDB→PG JSONB)
P6 run: 15 pts (easiest — already PG-native, no AWS deps in core)

Total self-hosted effort: ~104 story points across all 6 products
This commit is contained in:
Max Mayfield
2026-03-01 02:00:00 +00:00
parent 96e51054ae
commit c3bafa238a
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# dd0c/drift — Dual-Mode Deployment Addendum
**Template:** Based on dd0c/route dual-mode pattern (`01-llm-cost-router/architecture/dual-mode-addendum.md`)
---
## Cloud → Self-Hosted Service Mapping
| Cloud Service | Self-Hosted Replacement | Notes |
|--------------|----------------------|-------|
| SQS FIFO | PostgreSQL pgmq | Agent pushes drift reports to pgmq instead of SQS |
| RDS PostgreSQL | PostgreSQL container | Same schema, same RLS |
| Cognito | Local JWT (HS256) | Same AuthProvider trait pattern |
| S3 (drift report archive) | MinIO or local FS | Configurable via ObjectStore trait |
| CloudWatch | Prometheus + Grafana | Bundled in compose |
| SES | SMTP relay | For email notifications |
| KMS | Local AES-256-GCM | Key file mounted as volume |
## Self-Hosted Compose Services
```yaml
services:
agent-gateway: # gRPC endpoint for agents (replaces SQS ingestion)
image: ghcr.io/dd0c/drift-gateway:latest
event-processor: # Normalizes drift reports, scores severity
image: ghcr.io/dd0c/drift-processor:latest
api: # Dashboard API
image: ghcr.io/dd0c/drift-api:latest
dashboard: # React SPA
image: ghcr.io/dd0c/drift-dashboard:latest
postgres: # Config + drift data (with RLS)
image: postgres:16-alpine
redis: # mTLS cert cache, circuit breakers
image: redis:7-alpine
caddy: # Reverse proxy + auto-TLS
image: caddy:2-alpine
```
## Agent Changes
The Go agent already connects via gRPC — it just needs a configurable endpoint:
- Cloud: `grpcs://ingest.drift.dd0c.dev`
- Self-hosted: `grpc://localhost:50051` (or user's domain with Caddy TLS)
mTLS certs: self-hosted uses a local CA (generated during install) instead of ACM.
## Epic Impact
| Epic | Change | Effort |
|------|--------|--------|
| 1 (Agent) | Add configurable gRPC endpoint | 1 pt |
| 2 (Communication) | Local CA for mTLS, pgmq instead of SQS | 3 pts |
| 3 (Event Processor) | Already PostgreSQL — no change | 0 |
| 4 (Notifications) | SMTP fallback | 1 pt |
| 5 (Remediation) | No change — agent-side | 0 |
| 6 (Dashboard UI) | Local login form | 2 pts |
| 7 (Dashboard API) | LocalAuthProvider | 2 pts |
| 8 (Infrastructure) | docker-compose.yml + install.sh | 5 pts |
| 9 (Onboarding) | Local signup, remove Stripe req | 3 pts |
| 10 (TF Tenets) | No change | 0 |
| **Total** | | **17 pts** |