Files
internet_use_control/environment.d/control-service.env.example
Sam Rolfe 980bcfa005 Record the applied MQTT TLS listener on the shared Mosquitto
Follow-up to the Phase 3 commit (14b304e), after Sam accepted the confirmation
on AUD-80. The operational change itself lives outside this repository; this
commit updates the documentation so it matches reality.

Applied on .13 (backups: mosquitto.conf.bak.aud80-20261013-152648 and
docker-compose.yml.bak.aud80-20261013-152648):
- mosquitto.conf gains per_listener_settings true and
  include_dir /mosquitto/config/conf.d; its original 1883 listener and
  allow_anonymous true are untouched.
- docker-compose.yml publishes 8883 and mounts the new conf.d and tls
  directories (the compose mounts mosquitto.conf as a single file, so the
  include_dir fails without them).
- conf.d/webrestrict.{conf,acl,passwd} and tls/{ca.crt,server.crt,server.key}
  are installed from deploy/mosquitto/.
- The Control Service now uses tls://host.docker.internal:8883 with the
  control-service account and CONTROL_MQTT_INSECURE=false.

Verified live after the restart: the 1883 plane still carries anonymous traffic,
8883 refuses anonymous clients and a wrong password, each device reads only its
own retained config, a device cannot write another device's status or its own
config, and a client killed without DISCONNECT drove the retained will into an
offline transition recorded in SQLite.

Docs: deploy/mosquitto/README.md records the exact host diff, the runbook gap
that caused one restart-loop (the missing bind mounts), the per_listener_settings
deprecation caveat and the rollback. README.md and TRANSPORT_DESIGN.md now
describe the applied state.

Co-Authored-By: Paperclip <noreply@paperclip.ing>
2026-10-13 15:30:35 +11:00

70 lines
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# Control Service configuration — template.
#
# Copy to control-service.env and fill in real values. The real file is
# gitignored and must never be committed. docker compose loads it with env_file.
#
# Secrets in this lab also live in ~/.config/environment.d/10-secrets.conf; the
# same variable names can be exported there instead. The service reads only the
# process environment, so either source works.
# Listen address inside the container.
CONTROL_ADDR=:8791
# SQLite database on the persistent volume.
CONTROL_DB_PATH=/data/control.db
CONTROL_APP_ENV=production
CONTROL_LOG_LEVEL=info
# Signs the session cookie. Set to a long random string (>= 16 chars).
# Generate: openssl rand -hex 32
CONTROL_SESSION_SECRET=change-me-to-a-long-random-string
# Session lifetime (Go duration).
CONTROL_SESSION_TTL=12h
# Secure cookie flag. Keep true behind Caddy/HTTPS. Set false only for
# plain-HTTP local testing.
CONTROL_COOKIE_SECURE=true
# The single dashboard login (Sam).
CONTROL_ADMIN_USERNAME=sam
# Option A (simple): plaintext password. Constant-time compared at login.
CONTROL_ADMIN_PASSWORD=change-me
# Option B (preferred): a bcrypt hash; leave CONTROL_ADMIN_PASSWORD empty.
# Generate: docker run --rm --entrypoint /app/control webrestrict/control:0.3.0-phase3 hash-password 'your-password'
# CONTROL_ADMIN_PASSWORD_HASH=$2a$10$...
# --- MQTT (Phase 3) --------------------------------------------------------
# The broker is transport only. SQLite stays the source of truth, and only the
# Control Service publishes config (AGENTS.md §10 rules 5-6).
# Turn the broker link on or off. With it off the dashboard still works and the
# config stays in SQLite, unpublished.
CONTROL_MQTT_ENABLED=true
# The shared Mosquitto on `.13`, seen from inside this container. The compose
# file maps host.docker.internal to the host gateway. The TLS listener on 8883
# has been live since 2026-10-13 (deploy/mosquitto/README.md).
CONTROL_MQTT_BROKER=tls://host.docker.internal:8883
# The Control Service identity. The broker ACL gives it write access to every
# config topic and read access to every status and telemetry topic, nothing else.
# Generate the account with deploy/mosquitto/provision-clients.sh, which writes
# the values into deploy/mosquitto/clients.env (gitignored).
CONTROL_MQTT_CLIENT_ID=control-service
CONTROL_MQTT_USERNAME=control-service
CONTROL_MQTT_PASSWORD=change-me
# PEM bundle used to verify the broker certificate. Required for a tls:// broker.
# docker-compose.yml mounts deploy/mosquitto/tls/ here read-only.
CONTROL_MQTT_CA_FILE=/etc/webrestrict/tls/ca.crt
# Escape hatch for a broker that has no TLS listener: it allows a plaintext,
# credential-less link. The service refuses to start without credentials or TLS
# unless this is true, and it logs a warning when it is. Leave it false against
# the shared Mosquitto (AGENTS.md §10 rule 6).
CONTROL_MQTT_INSECURE=false