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tavolo/server/.env.example
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Trace Postgres and Redis queries with the contrib instrumentations
Builds the TracerProvider in tavolo.telemetry (kaya-otel's is private) and
injects it into kaya-otel, then instruments asyncpg and redis through
opentelemetry-instrumentation-asyncpg/redis. Redis command values are
redacted and asyncpg spans carry the parameterized SQL only.
2026-09-28 03:38:59 +08:00

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# Database (match statistics). The app assembles the DSN from these
# parts; DATABASE_PORT may be left unset to use the driver default
# (5432 for Postgres). DATABASE_OPTIONS is a raw query string appended
# to the URL (e.g. ssl=require); leave empty for none.
DATABASE_ENGINE=postgres
DATABASE_HOST=localhost
DATABASE_PORT=5432
DATABASE_NAME=tavolo
DATABASE_USER=tavolo
DATABASE_PASSWORD=password
DATABASE_OPTIONS=
# Full-DSN override: when set, the parts above are ignored. Used by the
# test suite (sqlite://:memory:) and handy for managed-DB URLs.
#DATABASE_URL=postgres://tavolo:password@localhost:5432/tavolo
# OIDC (mock-oauth2-server in dev; it does not validate clients, so any
# client id/secret works. For a real IdP like Keycloak, use its values here.)
OIDC_ISSUER=http://localhost:8180/tavolo
OIDC_CLIENT_ID=tavolo
OIDC_CLIENT_SECRET=dev-secret
OIDC_REDIRECT_URI=http://localhost:8080/auth/callback
# Redis (session and live-game storage). Unset to fall back to in-memory
# stores (only sensible for local development with a single worker).
REDIS_URL=redis://localhost:6379/0
# How long a live game survives in Redis without activity.
GAME_TTL_SECONDS=86400
# Seconds the between-hands scoring summary waits for acknowledgements
# before dealing the next hand anyway.
HAND_ACK_TIMEOUT_SECONDS=30
# Seconds a player has to play before the server plays a random legal card
# for them (covers disconnects and idle players).
TURN_TIMEOUT_SECONDS=30
# Path to a YAML logging configuration file (logging.config.dictConfig
# schema). Unset logs DEBUG to the console.
#LOGGING_CONFIG=/path/to/logging.yaml
# CORS (via kaya-cors' CorsMixin; same semantics as Starlette's
# CORSMiddleware). Disabled unless CORS_ALLOW_ORIGINS or
# CORS_ALLOW_ORIGIN_REGEX is set — the app serves the SPA and the API from
# the same origin, so no CORS headers are needed by default.
# Comma-separated list of origins allowed to make cross-origin requests,
# or "*" for any origin:
#CORS_ALLOW_ORIGINS=https://example.com,https://app.example.com
# Optional regex (fullmatch) allowed origins are additionally checked
# against — handy for dynamic preview URLs:
#CORS_ALLOW_ORIGIN_REGEX=https://tavolo-[a-z0-9-]+\.vercel\.app
# Comma-separated allowed methods, or "*" for all (default GET):
#CORS_ALLOW_METHODS=GET,POST
# Comma-separated allowed request headers, or "*" to mirror back whatever
# the browser requests (default: only the CORS-safelisted headers):
#CORS_ALLOW_HEADERS=Authorization,Content-Type
# Allow cookies/credentials on cross-origin requests (1/true/yes/on):
#CORS_ALLOW_CREDENTIALS=false
# Comma-separated response headers exposed to the browser:
#CORS_EXPOSE_HEADERS=
# Seconds browsers may cache the preflight response (default 600):
#CORS_MAX_AGE=600
# OpenTelemetry (via kaya-otel + the contrib instrumentation packages).
# Off unless OTEL_ENABLED is truthy; exports traces (HTTP/WebSocket,
# Postgres via asyncpg, Redis), metrics and logs over OTLP/HTTP (requires
# the tavolo-app "otel" extra, bundled in the Docker image). The endpoint
# defaults to the standard OTEL_EXPORTER_OTLP_ENDPOINT (localhost:4318)
# when unset.
#OTEL_ENABLED=true
#OTEL_SERVICE_NAME=tavolo
#OTEL_EXPORTER_OTLP_ENDPOINT=http://otel-collector:4318
#OTEL_EXPORTER_OTLP_HEADERS=Authorization=Bearer token,X-Tenant=one
# Paths excluded from tracing and metrics (default /api/health).
#OTEL_EXCLUDED_PATHS=/api/health
# Metric export interval (ms, default 60000) and session/game count poll
# interval (seconds, default 15).
#OTEL_METRIC_EXPORT_INTERVAL_MILLIS=60000
#OTEL_METRICS_POLL_INTERVAL_SECONDS=15
# App server
APP_HOST=0.0.0.0
APP_PORT=8080