emi
2d3f37c474
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The gateway bot and APScheduler were long-lived stateful I/O loops running inside the async web app under a leader election. They move into a single Go binary that owns ONLY that I/O -- websocket, RESUME, heartbeat, backoff, timers. It owns no grading logic. Anything needing data calls back over a new internal-only surface (/internal/discord/grade, /internal/jobs/*). Grading depends on polars and the parquet cache; reimplementing it in Go would let the bot's grades drift from the API's. The grade route returns gateway-ready JSON and Go relays the bytes verbatim. The binary ships in the backend image and runs as a second compose service off the same tag, so the two ends of the /internal/* contract can never skew. deploy.sh rolls daemon alongside backend -- without that the service would never be created, since a single-service deploy uses --no-deps. It also probes the image first and skips the daemon when rolling a tag that predates the binary: infra tracks main while image tags are env-staged, so a host can legitimately be asked to roll an older backend image, and creating the service anyway would leave a container crash-looping on a missing binary. replicas: 1 with order: stop-first replaces the leader election -- Discord permits one gateway connection per bot token. THERMOGRAPH_INTERNAL_TOKEN is optional: both ends derive it from THERMOGRAPH_AUTH_SECRET via HMAC under a domain-separation label, so this needs no new vault entry. The derivation is pinned to a shared cross-language test vector asserted on both sides, so drift fails CI instead of 401ing every call. Fail closed when neither secret is set. Improvements over the Python: a close intended for RESUME uses 4000 rather than 1000 (Discord invalidates a session closed 1000, so the old default defeated its own resume); MESSAGE_CREATE runs on a bounded worker pool; and a malformed HELLO returns an error rather than a clean reconnect, which would otherwise reset backoff and hot-loop against the gateway. 365 Python tests pass; Go build/vet/test -race clean; shellcheck 0 findings.
57 lines
2.5 KiB
Text
57 lines
2.5 KiB
Text
# Local docker-compose overrides. Copy to .env (gitignored) for `docker compose
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# up` / `make up` on a dev box: cp .env.example .env
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#
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# Compose auto-reads a repo-root .env for ${VAR} interpolation in
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# docker-compose.yml. In production these live in /etc/thermograph.env instead
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# (loaded by the systemd unit), so this file is only for local runs.
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# Database password. Compose uses it to initialize the postgres container AND to
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# build the app's THERMOGRAPH_DATABASE_URL. Change it before first `up`.
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POSTGRES_PASSWORD=change-me
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# OPTIONAL. Shared secret between the daemon service (Discord gateway + job
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# timers) and the backend's /internal/* routes.
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#
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# Leave it empty and both ends DERIVE the same token from THERMOGRAPH_AUTH_SECRET
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# (HMAC-SHA256 under a fixed label), which every environment already provisions —
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# so the daemon needs no new vault entry and no operator step. Set it only to
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# override that, e.g. to rotate this surface independently of the auth secret:
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# openssl rand -hex 32
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#
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# With neither this nor THERMOGRAPH_AUTH_SECRET set, both ends fail closed: the
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# backend disables the internal routes and the daemon refuses to start. Never
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# routed publicly — Caddy only forwards /api/*, /digest and
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# /discord/interactions to the backend.
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THERMOGRAPH_INTERNAL_TOKEN=
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# --- Everything below is optional -- docker-compose.yml already defaults each
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# --- of these, so a plain `make up` works with none of it set. Uncomment to
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# --- override.
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# TimescaleDB image tag. Defaults to the floating latest-pg18 tag. Pin it to an
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# exact minor (e.g. 2.17.2-pg18) before any host of this stack could ever
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# replicate with another -- see docker-compose.yml's db service comment.
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# TIMESCALEDB_TAG=latest-pg18
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# Postgres sizing. Terraform sets these per host in prod/beta (prod DB_MEMORY
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# 16g); local/beta default to 8g / 2 CPUs.
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# DB_MEMORY=8g
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# DB_CPUS=2
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# Backend uvicorn worker count and CPU cap. Terraform raises these on bigger
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# hosts; defaults keep a plain `docker compose up` identical to before.
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# WORKERS=4
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# APP_CPUS=4
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# Frontend CPU cap.
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# FRONTEND_CPUS=2
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# Registry + per-service image path/tag. Local dev normally builds each image
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# in its own app repo (thermograph-backend / thermograph-frontend) tagged
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# :local, which is the default here -- only set these to pull a specific
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# published build instead of building locally.
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# REGISTRY_HOST=git.thermograph.org
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# BACKEND_IMAGE_PATH=emi/thermograph-backend/app
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# BACKEND_IMAGE_TAG=local
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# FRONTEND_IMAGE_PATH=emi/thermograph-frontend/app
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# FRONTEND_IMAGE_TAG=local
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