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guestbook/.env.example
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# Copy to .env for local development (docker compose reads it automatically).
# HTTP port the app listens on.
PORT=8080
# Display name shown in the UI / health payload.
APP_NAME=Miabi Guestbook
# Version shown in the UI / /api/info. Overrides the build-time version.
# Set to different values per app (e.g. 1.0.0 vs 2.0.0) for a canary demo.
# APP_VERSION=1.0.0
# Seed sample entries on first run (only when the table is empty). Set to
# false to start with an empty wall.
SEED=true
# === Database ======================
# Driver: "postgres" or "sqlite". Leave unset to auto-detect: Postgres when
# it is configured (DATABASE_URL or DB_HOST present), otherwise SQLite.
# DB_DRIVER=postgres
# SQLite (zero-config; used when no Postgres is configured). File path, or
# ":memory:" for an ephemeral database. The parent directory is created on
# startup. Locally this defaults to ./data/guestbook.db; the container image
# uses /data/guestbook.db (a volume). On Miabi, mount a volume at /data.
# DB_PATH=data/guestbook.db
# Postgres — when you attach a Miabi managed database, Miabi injects these for
# you. DATABASE_URL takes precedence; otherwise the discrete DB_* parts are
# assembled into a DSN.
DATABASE_URL=postgres://postgres:postgres@db:5432/guestbook?sslmode=disable
# Discrete parts (used only when DATABASE_URL is empty):
# DB_HOST=db
# DB_PORT=5432
# DB_USER=postgres
# DB_PASSWORD=postgres
# DB_NAME=guestbook
# DB_SSL_MODE=disable
# === Scaling / live updates ========
# Redis for cross-replica live updates and presence. Without it each replica
# only pushes to its own clients. On Miabi, attach a managed Redis with the
# "REDIS" env prefix and REDIS_DATABASE_URL is injected (also accepted).
# REDIS_URL=redis://redis:6379
# === Admin console =================
# Enables /admin. Store as a secret. Generate with: openssl rand -hex 16
# ADMIN_TOKEN=
# CIDRs whose X-Forwarded-For is trusted for the signer IP shown in /admin.
# Unset trusts the header as-is (fine behind the Miabi gateway).
# TRUSTED_PROXIES=10.0.0.0/8
# Expose /api/debug/* failure injection (crash, slow, 5xx, CPU, memory, logs).
# Still requires admin auth. Demo environments only.
# DEBUG_ENDPOINTS=false