Stands up the shadow-ingest substrate without touching production:
- schema.go: faithful replica of db_async.init_db_async (idempotent DDL),
run only when an instance OWNS its DB (READ_ONLY=false). Fixes for a fresh DB:
spawn_events has no sole-id PK (so it can be a hypertable), telemetry_events
compression is enabled before its policy, and the portal unique index uses
ROUND(..,1) to match main.py's ON CONFLICT. 35/35 statements OK.
- store.go: read-only transaction enforcement is now conditional (on for
production read parity, off for ingest).
- main.go: READ_ONLY + SHADOW_INGEST_WS config; schema init on boot when owning
the DB.
- compose override: a SEPARATE TimescaleDB `dereth-go-db` (isolated volume,
127.0.0.1:5434) and a `dereth-tracker-go-shadow` instance (image reused via
dereth-tracker-go:local) that owns it. Production DB never written.
Verified: dereth_go has all 13 tables; telemetry_events + spawn_events are
hypertables; the read-side instance still serves production read-only.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Adds the rest of the read-side endpoints to the Go tracker, all parity-checked
against the live Python service:
- DB reads: /stats/{c}, /portals, /spawns/heatmap, /server-health,
/character-stats/{c} (stats_data JSONB merged to top level),
/combat-stats[/{c}], /inventories, /inventory/{c}/search.
- 5-minute totals cache + /total-rares, /total-kills.
- Ingest-only state returned as Python's empty/default shapes (/quest-status,
/vital-sharing/peers, /equipment-cantrip-state/{c}); /issues (flat file),
/me (401 until cookie verification lands).
- Streaming reverse proxy to inventory-service (/inventory/{c},
/inventory-characters, /search/*, /sets/list, /inv/{path...} incl. the SSE
suitbuilder stream).
- compare/compare_endpoints.py: structural parity for all read endpoints +
exact-match check for /character-stats and /combat-stats on OFFLINE chars
(online chars legitimately differ — Python serves a richer live overlay that
Phase-1 Go lacks until ingest).
Verified live: 14/14 endpoints structural-match, 8/8 rich offline chars
exact-match on /character-stats.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Parallel Go reimplementation of the dereth-tracker read side, deployed
loopback-only (:8770) and reading the dereth TimescaleDB read-only. The live
Python stack is untouched (added via a compose override, not by editing the
tracked docker-compose.yml).
- Phase 0 scaffold: stdlib net/http server (Go 1.22+ method+path routing),
/health + /api-version, multi-stage distroless Docker build, and
go-services/docker-compose.go.yml override (loopback :8770).
- Phase 1: pgx v5 pool forced into read-only transactions, a 5s /live + /trails
cache loop using the exact main.py:837 SQL, and Python-isoformat timestamps
so output matches FastAPI's jsonable_encoder.
- compare/compare_live.py: parity harness vs the live Python service. Uses the
server-stamped received_at to prove same-row full-field equality and to make
the online-set diff boundary-aware.
Verified on live traffic (73 players): identical online set + 23-key schema,
identity/type parity for all, every same-row pair matches on every field, and
diff-row pairs differ only by the ~6s two-cache refresh skew.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
