octoturge/MCMapper-Backend
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Phase 1: chunk store, tile rendering pipeline, and Leaflet viewer

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api: WS gateway with token auth (Postgres-backed servers table, seeded via
`bun run seed`), column-granularity chunk store (hand-written SQL
migrations, no drizzle-kit CLI — its config loader needs esbuild, which
doesn't install cleanly here), dirty-chunk Redis stream producer with
per-flush dedup, and a tile-serving route.

worker: consumes the dirty-chunk stream via a proper consumer group,
rasterizes each chunk's columns into a single-resolution top-down PNG
(static pre-Flattening block-id palette), uploads to MinIO, and upserts
the tile pointer.

frontend: barebones Leaflet 2D viewer (CRS.Simple, one native zoom level)
wired to /api/servers and /api/tiles.

Object storage: tiles live in a dedicated `mcmapper-tiles` bucket on the
existing shared MinIO instance (devstack-minio on octo-winsrv) instead of
a per-stack container, via a scoped access key limited to that one bucket
— see README's "Object storage" section. MINIO_SECRET_KEY is real and is
deliberately not committed; docker-compose layers an untracked .env over
.env.example for it.

Full pipeline verified end-to-end against live containers: WS auth ->
Postgres upsert -> deduped Redis dirty-chunk event -> worker rasterize ->
MinIO upload -> tile fetch through the api route, including from the
actual mod-side WS client (see MCMapper-Mod's matching commit).
This commit is contained in:
Iwo Strzeboński
2026-08-08 15:36:56 +02:00
parent 4c7cc26281
commit 7bed571ffa
30 changed files with 3779 additions and 84 deletions
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worker/.env.example
+8 -3
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@@ -1,8 +1,13 @@
DATABASE_URL=postgres://mcmapper:mcmapper@postgres:5432/mcmapper
REDIS_URL=redis://redis:6379
MINIO_ENDPOINT=minio
MINIO_PORT=9000
# See api/.env.example for what this points at and why — same shared MinIO instance/bucket,
# same rule: MINIO_SECRET_KEY is real, set it in an untracked `.env` next to this file, never here.
MINIO_ENDPOINT=192.168.0.3
MINIO_PORT=28205
MINIO_USE_SSL=false
MINIO_ACCESS_KEY=mcmapper
MINIO_SECRET_KEY=mcmapper-dev-only
MINIO_SECRET_KEY=changeme-set-in-untracked-env
# cpu | gpu | hybrid — see render::backend. Only `cpu` exists so far (Phase 8 adds gpu/hybrid).
RENDER_BACKEND=cpu