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shopdb-flask/.env.example
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Act on the wj architectural review: races, limits, pool and contract gaps
Findings F2, F4, F5, F6, F7, F8, F9, F10, F11 and F13 from
wj-architectural-review.md. F1/F1a (the non-sargable LOWER pattern) and F3
(the warranty sync holding a pooled connection) are being handled separately
and are untouched here.

- A collector check-in that raced another for the same PC lost everything:
  the unique index on the application fingerprint raised, nothing caught it,
  and the whole check-in rolled back, discarding state, events and hardware,
  answering the agent with form copy meant for a person. The insert now runs
  in a savepoint, reconciles what the other transaction already wrote, one row
  per savepoint so a second collision skips a row rather than the batch, and
  the check-in commits with a warning. This is the shape the delete side of
  the same function already had.
- Enrollment is deliberately unauthenticated, so it now carries a per-address
  rate limit and a cap on pending requests, and the cap is a setting an admin
  can see and change. A flood can no longer bury the approval queue or grow
  the table without bound.
- The fleet alert poll no longer formats debug strings on every request.
- BusinessUnit is on the contract surface (0.34.0), so the endpoints plugin
  stops reaching into a core table with raw SQL.
- A test walks every asset type descriptor and proves the endpoint it names
  really refuses a caller without the declared permission.
- The plugin settings routes now need a permission; they were telling anyone
  which modules a site runs and where its components live.
- The connection pool is sized explicitly with a short timeout, and the
  arithmetic against the server's connection ceiling is written next to the
  worker count instead of being left to defaults nobody chose.
- Fleet alerts carry both the correct lowercase keys and the old camelCase
  pair. Trays older than 1.7.0 match keys case-sensitively and would have gone
  quiet on every PC not yet upgraded; the old pair goes when they are.
- The dev server proxy points at localhost again, with environment variables
  for the remote-box workflow, and one developer's address is out of the
  server certificate page.
2026-09-16 08:57:04 -04:00

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# shopdb-flask environment template.
#
# Copy to .env and fill in the values. .env is gitignored. ProductionConfig
# refuses to boot when SECRET_KEY, JWT_SECRET_KEY, DATABASE_URL, or
# CORS_ORIGINS are missing or use the dev defaults.
#
# See the DEPLOY wiki page for the full per-site deployment runbook.
# ---- Flask ----
FLASK_APP=wsgi.py
# Set to 'production' for live sites. Other valid values: 'development',
# 'testing'. Production triggers ProductionConfig.validate() at boot.
FLASK_ENV=production
# ---- Required secrets (production refuses to boot without these) ----
# Generate strong random values, e.g.:
# python -c "import secrets; print(secrets.token_urlsafe(64))"
SECRET_KEY=change-this-to-a-secure-random-string
JWT_SECRET_KEY=change-this-to-another-secure-random-string
# ---- Database (required) ----
# Format: mysql+pymysql://<user>:<password>@<host>:<port>/<database>?charset=utf8mb4
# In docker-compose, host is `db` (the service name).
# The ?charset=utf8mb4 keeps the connection on utf8mb4; create the database as
# utf8mb4 too (see the DEPLOY wiki page). Both must be utf8mb4 to match the schema.
DATABASE_URL=mysql+pymysql://shopdb:CHANGE_ME@db:3306/shopdb_flask?charset=utf8mb4
# ---- Database connection pool (optional, defaults shown) ----
# Per WORKER process, so the real ceiling is workers x (size + overflow). See
# the arithmetic beside --workers in docker-compose.yml before raising either:
# at the shipped 4 workers this is 4 x (10 + 10) = 80 against the mysql:8.4
# default max_connections of 151. More workers needs a smaller pool here or a
# higher --max-connections on the db service.
# DB_POOL_TIMEOUT is the wait for a free connection. 5s fails fast and
# legibly; the SQLAlchemy default of 30s turns pool exhaustion into what looks
# like a dead database.
DB_POOL_SIZE=10
DB_MAX_OVERFLOW=10
DB_POOL_TIMEOUT=5
# ---- CORS (required, no wildcards in production) ----
# Comma-separated list of explicit origins permitted to call the API.
# Example for a single-host facility deploy:
# CORS_ORIGINS=https://shopdb.facility-a.example.com
# Wildcard '*' is rejected by ProductionConfig.validate().
CORS_ORIGINS=http://localhost:5173
# ---- Reverse proxy (optional, default 0 = no proxy) ----
# Set to the number of proxies actually in front of this instance - 1 when IIS
# or nginx serves it under a subpath such as /shopdb. Without it the app sees
# the proxy's connection instead of the browser's (scheme http, the proxy's
# host and IP), so any absolute URL it builds is wrong at the browser. That is
# what made a redirect on the endpoints list unfollowable behind IIS.
#
# Leave it at 0 when nothing fronts the app. It makes X-Forwarded-* trusted,
# and a client can send those headers itself - the login rate limit and the
# account lockout are keyed on the client address.
TRUSTED_PROXY_COUNT=0
# ---- JWT lifecycle (optional, defaults shown) ----
JWT_ACCESS_TOKEN_EXPIRES=3600
JWT_REFRESH_TOKEN_EXPIRES=2592000
# ---- Logging (optional) ----
LOG_LEVEL=INFO
# ---- docker-compose only ----
# These are read by docker-compose.yml; not used by the Flask app directly.
MYSQL_ROOT_PASSWORD=CHANGE_ME_ROOT_PASSWORD
MYSQL_PASSWORD=CHANGE_ME_APP_PASSWORD
MYSQL_PORT=3306
API_PORT=5001
# Air-gapped deploy only (docker-compose.airgap.yml): the loaded image tag,
# which MUST match what build-offline-bundle.ps1 -Version produced. Ignored by
# the connected build template (docker-compose.yml builds from source).
IMAGE_TAG=0.7.0
# ---- Zabbix integration (optional, for printer supply monitoring) ----
ZABBIX_URL=
ZABBIX_TOKEN=
# ---- Per-plugin collector API keys (optional) ----
# Per ADR-006, each plugin can accept external collector input at
# /api/collector/<pluginname>. The framework checks
# COLLECTOR_API_KEY_<PLUGINNAME> first, then COLLECTOR_API_KEY as fallback.
# COLLECTOR_API_KEY=
# COLLECTOR_API_KEY_COMPUTERS=
# COLLECTOR_API_KEY_ENDPOINTS=
# ---- Trusted plugin publisher keys (ADR-013, optional) ----
# Public-key PEM paths (OS path separator: ':' on Linux, ';' on Windows) used
# to verify signed plugin artifacts. Delivered with this config, NEVER from the
# plugin shelf. Empty on a site that does not adopt marketplace plugins.
# PLUGIN_TRUSTED_KEYS=/etc/shopdb/keys/curator.pub
#
# Enforce signatures: a plugin only loads/migrates if its tree matches a
# trusted signature. Default off. Turn on only after stamping plugins
# (flask plugin stamp-bundled) and pinning keys above.
# PLUGIN_REQUIRE_SIGNED=false
#
# Dev-only: directories whose UNSIGNED plugins are trusted, honored ONLY under
# DEBUG/TESTING (external-repo/symlink dev). Production ignores this.
# PLUGIN_DEV_TRUST_DIRS=/home/dev/my-plugin-repo
#
# Read-only folder the app pulls plugin artifacts from (a SharePoint-synced or
# copied shelf). The app reads this folder; it never speaks any network.
# PLUGIN_SHELF_DIR=/srv/shopdb/plugin-shelf
# ---- Employee directory database (optional, read-only) ----
# Separate HR/employee lookup DB consumed by the notifications plugin and the
# public shopfloor kiosks. Leave unset if the feature is not used; there is no
# safe default for the password, so an unset password fails loud.
# EMPLOYEE_DB_HOST=
# EMPLOYEE_DB_USER=
# EMPLOYEE_DB_PASSWORD=
# EMPLOYEE_DB_NAME=wjf_employees
# ---- cmmc_usb database (USB check-in/out) ----
# Separate read-write MySQL DB used by the USB plugin to track device
# check-in/out, lockers, and the check-in/out log. Leave unset if the feature
# is not used; there is no safe default for the password, so an unset password
# fails loud.
# CMMC_USB_DB_HOST=
# CMMC_USB_DB_USER=
# CMMC_USB_DB_PASSWORD=
# CMMC_USB_DB_NAME=cmmc_usb
# ---- Subpath deployment (optional) ----
# Serve the app under a URL prefix instead of the server root, e.g. as an IIS
# Application at /ops under an existing site. The frontend must be rebuilt with
# the matching base: VITE_BASE_PATH=/ops/ npm run build. Leave unset when the
# app owns its own site/port (the default). See the INSTALL-WINDOWS-IIS wiki page.
# MOUNT_PATH=/ops