Files
turnstone/docs/docker.md
T
Patrick Buckley 752fea0fdd feat(console): reactive node discovery via PG LISTEN/NOTIFY dispatcher (#505)
* feat(console): reactive node discovery via PG LISTEN/NOTIFY dispatcher

Add a console-side `NotifyDispatcher` that holds a dedicated PostgreSQL
`LISTEN` connection and fans wake-ups out to per-channel handlers on a
separate dispatch thread. Cluster collector subscribes to a new
`services` channel and runs node discovery reactively — new-node /
graceful-deregister visibility drops from up-to-60 s to ~500 ms on
Postgres, with the 60 s discovery loop retained as the backstop for
crash-shaped node loss (NOTIFY only fires on real writes).

Storage layer gains a uniform `notify` / `listen` API:
- PostgreSQL: real `pg_notify` / `LISTEN` on a dedicated session-mode
  connection that bypasses pgbouncer (mandatory: pgbouncer is required
  in transaction-pool mode per docs, which is incompatible with LISTEN).
- SQLite: in-process fan-out + synthetic-sweep fallback so consumer
  code is identical across backends.

`TURNSTONE_DB_LISTEN_URL` (or `[database] listen_url` in config.toml)
points the dispatcher's connection direct-to-Postgres. Defaults to the
main DB URL when unset.

Migration 053 installs the `services_notify` trigger; it filters
heartbeat-only UPDATEs in-trigger so the 30 s × N-nodes heartbeat tick
stays quiet, while INSERT, DELETE, and url/metadata-changing UPDATE
still fire.

Dispatcher detail:
- Two threads: listener (drains stream → bounded queue) and dispatch
  (invokes handlers under exception suppression). Same-channel notifies
  coalesce per dispatch batch so an N-node deploy burst is one
  `_discover_nodes` per channel.
- Reconnect uses exponential backoff (1 s → 30 s cap). After any
  successful reopen — whether the prior failure was a stream-poll error
  or a connect / initial-LISTEN error — one synthetic Notify with
  payload="reconcile" is enqueued per channel so handlers re-read on
  the same code path they use for real events.

Future consumers (ConfigStore live reload, scheduler immediate
dispatch, audit live-tail) plug in by adding their channel to the
dispatcher's construction list.

Tests: 22 dispatcher tests (incl. reconnect + coalescing under stub
storage), 7 SQLite notify-stream tests, 4 PG-gated trigger-filter
tests, 4 collector wire-in tests. All pass; ruff + mypy clean.

* fix(notify): address Copilot review on #505

- _sqlite.py: SQLiteBackend.listen() now de-dupes channel names via
  dict.fromkeys before constructing the stream — duplicates would
  otherwise register the queue twice and double-deliver each notify.
- _sqlite.py: SQLiteBackend.listen() gains a keyword-only sweep_interval
  parameter (defaults to _SQLITE_NOTIFY_SWEEP_INTERVAL) — matches what
  the comment at the constant already promised, and lets future
  consumers without their own polling timer pick a tighter cadence
  without reaching into private stream attributes.
- _sqlite.py: documented the `except queue.Empty: pass` end-of-drain
  termination so it's not mistaken for swallowing an unexpected error.
- _postgresql.py: docstring referenced :func:`_pg_listen_url` which
  was renamed to _resolve_pg_listen_url during PR development.
- notify_dispatcher.py: module docstring referenced a non-existent
  _bootstrap_console_subsystem; wire-in is at console/server.py::main.

Refuted (no change, false positives from github-code-quality bot):
- 4× "Statement has no effect" on Protocol-method `...` ellipsis bodies
  (idiomatic Python Protocol declaration, not dead code).
- 2× "Mixed import style" in tests — `import ... as nd_mod` is
  intentional to allow attribute assignment for monkey-patching the
  module's `_RECONNECT_BACKOFF_INITIAL` constant inside try/finally.
2026-05-11 00:51:19 -07:00

6.6 KiB

Docker Deployment

Docker Compose stack for running the full turnstone platform.

Quick Start

# Copy and edit environment config
cp .env.example .env

# Full stack (needs an LLM API on the host)
docker compose up

Console dashboard: http://localhost:8090

See also: Deployment diagram

Services

Service Port Profile Description
server 8080 default Web UI + chat workstreams + LLM
console 8090 default Cluster dashboard
channel production Channel gateway (Discord and/or Slack adapters)
server-1server-10 cluster 10-node server fleet (PostgreSQL required)

Profiles

Default (no flag) — starts server and console. Requires an OpenAI-compatible LLM API running on the host (default: http://localhost:8000/v1).

docker compose up

Production — adds PostgreSQL and the channel gateway. Requires POSTGRES_PASSWORD and (for Discord) TURNSTONE_DISCORD_TOKEN:

docker compose --profile production up

Cluster — 10-node server fleet sharing PostgreSQL. Access all nodes via the console at :8090. Requires POSTGRES_PASSWORD:

docker compose --profile cluster up

Configuration

All configuration is via environment variables in .env (copy from .env.example):

LLM Backend

Variable Default Description
LLM_BASE_URL http://host.docker.internal:8000/v1 OpenAI-compatible API URL
OPENAI_API_KEY dummy API key (dummy for local servers)
TAVILY_API_KEY Web search API key (only needed for local/vLLM models; Anthropic and OpenAI search models use native search)

Server

Variable Default Description
SERVER_PORT 8080 Host port mapping
SKIP_PERMISSIONS Set to any value to auto-approve all tools

Console

Variable Default Description
CONSOLE_PORT 8090 Host port mapping

Auth

Auth is always enabled. TURNSTONE_JWT_SECRET is required.

Variable Default Description
TURNSTONE_JWT_SECRET Secret key for signing JWTs (required)

Database

Variable Default Description
TURNSTONE_DB_BACKEND sqlite Storage backend: sqlite or postgresql
TURNSTONE_DB_URL Database URL (e.g. postgresql+psycopg://user:pass@postgres:5432/turnstone). For SQLite, defaults to /data/.turnstone.db
TURNSTONE_DB_LISTEN_URL (falls back to TURNSTONE_DB_URL) Direct-to-PostgreSQL URL for the console's dedicated LISTEN connection. Set this when TURNSTONE_DB_URL points at PgBouncer in transaction pooling mode — LISTEN is session state and the transaction-pooled connection can't hold it. See pgbouncer.md.
TURNSTONE_DB_POOL_SIZE 2 PostgreSQL connection pool size per process (default: 2 base + 3 overflow = 5 max)
POSTGRES_USER turnstone PostgreSQL container username (used in default TURNSTONE_DB_URL for cluster/channel)
POSTGRES_PASSWORD PostgreSQL container password (required for production and cluster profiles)

The database stores workstream history, user accounts, and API tokens. When using JWT auth, a database backend is required for user storage.

Upgrading from <1.3.0a4: Earlier versions used DB_BACKEND and DATABASE_URL in .env, which compose.yaml mapped to the TURNSTONE_-prefixed names internally. These short aliases have been removed. Rename DB_BACKENDTURNSTONE_DB_BACKEND and DATABASE_URLTURNSTONE_DB_URL in your .env file.

Large clusters: Each turnstone process maintains a small connection pool (5 max). At hundreds of nodes this adds up — use PgBouncer in transaction pooling mode between turnstone and PostgreSQL.

First-time setup: After deploying with auth enabled, create an initial admin user by running turnstone-admin create-user inside the container:

docker compose exec server turnstone-admin create-user --username admin --name "Admin"

You will be prompted to set a password. Use it to log in via the UI or SDK, then create additional users through the admin API. Pass --token --scopes read,write,approve to also generate an initial API token.

Channel Gateway

Variable Default Description
TURNSTONE_DISCORD_TOKEN Discord bot token (required to enable Discord adapter)
TURNSTONE_DISCORD_GUILD 0 Restrict to a single Discord guild (0 = all guilds)
TURNSTONE_SLACK_TOKEN Slack Bot User OAuth token xoxb-… (required to enable Slack adapter)
TURNSTONE_SLACK_APP_TOKEN Slack App-Level token xapp-… (required with TURNSTONE_SLACK_TOKEN)
TURNSTONE_SLACK_CHANNELS Comma-separated Slack channel IDs to allow (empty = all)
TURNSTONE_SLACK_SLASH_COMMAND /turnstone Slash command registered in the Slack app

The channel service runs in the production profile. When TURNSTONE_DISCORD_TOKEN or the Slack pair is set the gateway starts the corresponding adapter; both can run in one process. See Channel Integrations for platform app setup and user account linking.

Scaling

For multi-node testing, use the cluster profile which provides 10 server instances with unique node IDs (node-1 through node-10), resource limits, and shared PostgreSQL:

POSTGRES_PASSWORD=secret docker compose --profile cluster up

The default server also runs alongside the cluster nodes (11 total). All nodes are accessible via the console dashboard at :8090.

For production clusters beyond ~50 nodes, add PgBouncer between turnstone services and PostgreSQL. See PgBouncer Connection Pooling for Docker Compose and Helm configuration.

Volumes

Volume Mount Purpose
turnstone-data /data SQLite database (.turnstone.db)

Building

The image uses a multi-stage Dockerfile:

# Build all services
docker compose build

# Rebuild without cache
docker compose build --no-cache

All entry points are installed in a single image: turnstone, turnstone-server, turnstone-console, turnstone-channel, turnstone-admin, turnstone-eval, and turnstone-bootstrap.

Cleanup

# Stop and remove containers
docker compose down

# Stop, remove containers and volumes
docker compose down -v