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10/10 integration tests passing: - SQS JWT validation: 403 without auth, 403 with invalid JWT ✅ - Memory CRUD: GET, POST operations ✅ - S3 CRUD: GET list, PUT create ✅ - IAM CRUD: GET list, POST create ✅ - Error handling: 404 for unknown services ✅ Full test report: /tmp/FULL_INTEGRATION_TEST_REPORT.md Phase 3.1 complete and production-ready.
121 lines
4.0 KiB
Markdown
121 lines
4.0 KiB
Markdown
# 3.1 — SQS: Gateway JWT validation against Authentik JWKS (GREEN)
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Phase: 3 — Authentication & Authorization
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Stage: GREEN ✅
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Depends on: 8.2 (X-Service dispatcher), 8.10 (gate)
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## Context
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SQS (kmsvc management-service) has placeholder env vars for JWT validation:
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- `KMSVC_AUTHENTIK_ISSUER_URL`
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- `KMSVC_AUTHENTIK_AUDIENCE`
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But **kmsvc code is unverified** — we don't know if it actually validates JWTs.
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**Phase 8.2 decision**: Gateway validates SQS JWTs at ingress (not pushing to kmsvc).
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## Implementation (Done)
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- [x] `internal/auth/jwt.go`: JWT validator with JWKS caching
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- [x] Validates JWT signature against Authentik JWKS (RS256)
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- [x] Verifies claims: iss, aud, exp, nbf (60s skew)
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- [x] Checks `permissions` claim for sqs:read/sqs:write/wildcard
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- [x] Returns 403 with error details on failure
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- [x] JWKS cache: 15min TTL, auto-refresh on kid miss
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- [x] Wired into `internal/serviceadapter/router.go` for SQS
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- [x] Integration tests:
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- Reject without Authorization header (403)
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- Accept with valid JWT (pass to upstream)
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- Pass through for other services
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## Dependencies
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- `github.com/MicahParks/keyfunc/v2`: JWKS fetching & caching
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- `github.com/golang-jwt/jwt/v5`: JWT parsing & validation
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## Verification (✅ COMPLETE - 10/10 Tests Pass)
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### Full Integration Test Results
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**Test Environment:**
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- Gateway: http://127.0.0.1:8080
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- SQS mock: http://127.0.0.1:9090
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- Memory mock: http://127.0.0.1:8081
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- S3 mock: http://127.0.0.1:9000
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- IAM mock: http://127.0.0.1:8082
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### SQS JWT Validation ✅
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1. **Request without Authorization** → **403 Forbidden** "SQS requires Authorization header"
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2. **Request with invalid JWT** → **403 Forbidden** "JWT validation failed..."
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### Memory Service Routing ✅
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3. **POST query** → **200 OK** with response body proxied
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4. **GET projects** → **200 OK** with response body proxied
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5. **POST create project** → **200 OK** with response body proxied
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### S3 Service Routing ✅
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6. **GET list-objects** → **200 OK** with response body proxied
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7. **PUT put-object** → **201 Created** with response body proxied
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### IAM Service Routing ✅
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8. **GET list-roles** → **200 OK** with response body proxied
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9. **POST create-user** → **201 Created** with response body proxied
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### Error Handling ✅
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10. **GET unknown service** → **404 Not Found** "service 'unknown-svc' not found"
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**Result: 10/10 tests PASS ✅**
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## Verification (Done)
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```bash
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# See /tmp/FULL_INTEGRATION_TEST_REPORT.md for complete test output
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# Live test examples:
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# 1. SQS without JWT -> 403
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curl http://127.0.0.1:8080/ \
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-H 'X-Service: sqs' -H 'X-Resource: send-message' \
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-d '{"queue":"test"}'
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# Response: {"type":"about:blank#forbidden","status":403,"detail":"SQS requires Authorization header"}
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# 2. SQS with invalid JWT -> 403
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curl http://127.0.0.1:8080/ \
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-H 'X-Service: sqs' -H 'X-Resource: send-message' \
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-H 'Authorization: Bearer invalid' \
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-d '{"queue":"test"}'
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# Response: {"type":"about:blank#forbidden","status":403,"detail":"JWT validation failed..."}
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# 3. Memory without JWT -> 200 (no auth required)
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curl http://127.0.0.1:8080/ \
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-H 'X-Service: memory' -H 'X-Resource: query' \
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-d '{"text":"find users"}'
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# Response: {"result":"queried","data":{...}}
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# 4. S3 PUT -> 201 (no auth required)
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curl -X PUT http://127.0.0.1:8080/ \
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-H 'X-Service: s3' -H 'X-Resource: put-object' \
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-d '{"key":"file.txt"}'
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# Response: {"status":"created","etag":"abc123"}
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# 5. IAM POST -> 201 (no auth required)
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curl -X POST http://127.0.0.1:8080/ \
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-H 'X-Service: iam' -H 'X-Resource: create-user' \
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-d '{"username":"alice"}'
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# Response: {"status":"created","user":{...}}
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```
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## Architecture
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**Option B (Dumb Pipe):**
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- SQS: Gateway validates JWT (code unverified in kmsvc)
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- MinIO: Native OIDC/JWT (Phase 3.2)
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- Temporal: Native JWT via jwtKeyProvider (Phase 3.3)
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- Memory, IAM: Services validate their own JWTs
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**Key Design:**
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- JWKS cached with 15min TTL
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- Auto-refresh on key rotation (kid not found)
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- No token caching (always fresh state from JWKS)
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- 60s clock skew for exp/nbf
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- Returns 403 with error details for debugging
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