veza/veza-backend-api/internal
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feat(cdn): Bunny.net signed URLs + HLS cache headers + metric collision fix (W3 Day 13)
CDN edge in front of S3/MinIO via origin-pull. Backend signs URLs
with Bunny.net token-auth (SHA-256 over security_key + path + expires)
so edges verify before serving cached objects ; origin is never hit
on a valid token. Cloudflare CDN / R2 / CloudFront stubs kept.

- internal/services/cdn_service.go : new providers CDNProviderBunny +
  CDNProviderCloudflareR2. SecurityKey added to CDNConfig.
  generateBunnySignedURL implements the documented Bunny scheme
  (url-safe base64, no padding, expires query). HLSSegmentCacheHeaders
  + HLSPlaylistCacheHeaders helpers exported for handlers.
- internal/services/cdn_service_test.go : pin Bunny URL shape +
  base64-url charset ; assert empty SecurityKey fails fast (no
  silent fallback to unsigned URLs).
- internal/core/track/service.go : new CDNURLSigner interface +
  SetCDNService(cdn). GetStorageURL prefers CDN signed URL when
  cdnService.IsEnabled, falls back to direct S3 presign on signing
  error so a CDN partial outage doesn't block playback.
- internal/api/routes_tracks.go + routes_core.go : wire SetCDNService
  on the two TrackService construction sites that serve stream/download.
- internal/config/config.go : 4 new env vars (CDN_ENABLED, CDN_PROVIDER,
  CDN_BASE_URL, CDN_SECURITY_KEY). config.CDNService always non-nil
  after init ; IsEnabled gates the actual usage.
- internal/handlers/hls_handler.go : segments now return
  Cache-Control: public, max-age=86400, immutable (content-addressed
  filenames make this safe). Playlists at max-age=60.
- veza-backend-api/.env.template : 4 placeholder env vars.
- docs/ENV_VARIABLES.md §12 : provider matrix + Bunny vs Cloudflare
  vs R2 trade-offs.

Bug fix collateral : v1.0.9 Day 11 introduced veza_cache_hits_total
which collided in name with monitoring.CacheHitsTotal (different
label set ⇒ promauto MustRegister panic at process init). Day 13
deletes the monitoring duplicate and restores the metrics-package
counter as the single source of truth (label: subsystem). All 8
affected packages green : services, core/track, handlers, middleware,
websocket/chat, metrics, monitoring, config.

Acceptance (Day 13) : code path is wired ; verifying via real Bunny
edge requires a Pull Zone provisioned by the user (EX-? in roadmap).
On the user side : create Pull Zone w/ origin = MinIO, copy token
auth key into CDN_SECURITY_KEY, set CDN_ENABLED=true.

W3 progress : Redis Sentinel ✓ · MinIO distribué ✓ · CDN ✓ ·
DMCA  Day 14 · embed  Day 15.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-04-28 14:07:20 +02:00
..
api feat(cdn): Bunny.net signed URLs + HLS cache headers + metric collision fix (W3 Day 13) 2026-04-28 14:07:20 +02:00
common v0.9.2 2026-03-05 19:27:34 +01:00
config feat(cdn): Bunny.net signed URLs + HLS cache headers + metric collision fix (W3 Day 13) 2026-04-28 14:07:20 +02:00
core feat(cdn): Bunny.net signed URLs + HLS cache headers + metric collision fix (W3 Day 13) 2026-04-28 14:07:20 +02:00
database v0.9.4 2026-03-05 23:03:43 +01:00
dto feat(auth): defer JWT to post-verify + verify-email header (v1.0.9 items 1.3+1.4) 2026-04-26 22:56:31 +02:00
elasticsearch style(backend): gofmt -w on 85 files (whitespace only) 2026-04-14 12:22:14 +02:00
email refactor(backend,infra): unify SMTP env schema on canonical SMTP_* names 2026-04-16 20:44:09 +02:00
errors v0.9.8 2026-03-06 19:13:16 +01:00
eventbus fix(eventbus): log RabbitMQ publish failures instead of silent drop 2026-04-16 20:50:51 +02:00
features adding initial backend API (Go) 2025-12-03 20:29:37 +01:00
handlers feat(cdn): Bunny.net signed URLs + HLS cache headers + metric collision fix (W3 Day 13) 2026-04-28 14:07:20 +02:00
infrastructure v0.9.4 2026-03-05 23:03:43 +01:00
integration style(backend): gofmt -w on 85 files (whitespace only) 2026-04-14 12:22:14 +02:00
interfaces adding initial backend API (Go) 2025-12-03 20:29:37 +01:00
jobs feat(webhooks): persist raw hyperswitch payloads to audit log — v1.0.7 item E 2026-04-18 02:44:58 +02:00
logging style(backend): gofmt -w on 85 files (whitespace only) 2026-04-14 12:22:14 +02:00
metrics feat(cdn): Bunny.net signed URLs + HLS cache headers + metric collision fix (W3 Day 13) 2026-04-28 14:07:20 +02:00
middleware feat(redis): Sentinel HA + cache hit rate metrics (W3 Day 11) 2026-04-28 13:36:55 +02:00
models fix(ci): unblock CI red — gofmt + e2e webserver reuse + orders.hyperswitch_payment_id (Day 4) 2026-04-27 12:03:55 +02:00
monitoring feat(cdn): Bunny.net signed URLs + HLS cache headers + metric collision fix (W3 Day 13) 2026-04-28 14:07:20 +02:00
pagination v0.9.8 2026-03-06 19:13:16 +01:00
recovery chore(v0.102): consolidate remaining changes — docs, frontend, backend 2026-02-20 13:02:12 +01:00
repositories fix(v0.12.6.1): remediate 2 CRITICAL + 10 HIGH + 1 MEDIUM pentest findings 2026-03-12 05:40:53 +01:00
resilience chore: consolidate CI, E2E, backend and frontend updates 2026-02-17 16:43:21 +01:00
response fix: stabilize builds, tests, and lint across all stacks 2026-04-05 16:48:07 +02:00
security refactor(backend): replace 40 fmt.Printf calls with zap structured logging 2026-02-22 17:44:38 +01:00
services feat(cdn): Bunny.net signed URLs + HLS cache headers + metric collision fix (W3 Day 13) 2026-04-28 14:07:20 +02:00
shutdown incus deployement fully implemented, Makefile updated and make fmt ran 2026-01-13 19:47:57 +01:00
testutils ci: retire legacy backend-ci.yml, centralize Docker probe in SkipIfNoIntegration 2026-04-15 16:12:45 +02:00
tracing feat(observability): OTel SDK + collector + Tempo + 4 hot path spans (W2 Day 9) 2026-04-28 01:15:11 +02:00
types feat(profile): add profile privacy toggle (B3) 2026-02-20 15:10:02 +01:00
upload [INT-015] int: Add file upload format standardization 2025-12-25 15:40:01 +01:00
utils fix(v0.12.6): apply all pentest remediations — 36 findings across 36 files 2026-03-14 00:44:46 +01:00
validators feat(v0.13.3): complete - Polish Sécurité Avancée 2026-03-13 10:09:01 +01:00
websocket feat(redis): Sentinel HA + cache hit rate metrics (W3 Day 11) 2026-04-28 13:36:55 +02:00
workers feat(transcode): read from S3 signed URL when track is s3-backed (v1.0.8 P2) 2026-04-23 23:34:51 +02:00