Onlyboxes

简体中文

Onlyboxes is a self-hosted code execution sandbox platform for individuals and small teams.

It uses a control-plane (console) and execution-plane (worker) architecture, and exposes both REST APIs and MCP tools.

Key Features

• Self-hosted all components: control node (console) + worker nodes (worker)
• Separated control and execution planes:
  • Workers support horizontal scaling
  • Workers support multi-language heterogeneous implementations
  • Workers support multiple runtimes
• Full account system: resource isolation (stateful containers, sessions) between accounts
• MCP tools:
  • pythonExec: Python code execution
  • terminalExec: stateful terminal sessions
  • readImage: model-readable images
• REST API: all MCP tools also available via HTTP + async task API

Warning

In the current release, console (gRPC + HTTP) does not provide built-in TLS/mTLS.

worker rejects insecure console endpoints by default; plaintext is allowed only when WORKER_CONSOLE_INSECURE=true is explicitly set.

Put both console HTTP (:8089) and gRPC (:50051) endpoints behind your reverse proxy/gateway and enforce TLS for external traffic.

Architecture

Quick Start (Self-Hosted)

1) Prerequisites

• Control node:
  • Docker Engine (no dependencies if deployed via Docker)
• Worker node:
  • Docker Engine (required by worker-docker)

2) Start the console service

1. Download the docker-compose.yml file:

   mkdir -p onlyboxes-console && cd onlyboxes-console
   wget https://raw.githubusercontent.com/Coooolfan/onlyboxes/refs/heads/main/docker/docker-compose.yml
   

2. Edit docker-compose.yml and replace at least:

   • CONSOLE_HASH_KEY
   • CONSOLE_DASHBOARD_PASSWORD

3. Start console:

   docker compose up -d

Default endpoints:

• Console Web UI / HTTP REST API / MCP endpoint: http://127.0.0.1:8089
• gRPC: 127.0.0.1:50051

3) Sign in and create an access token

• Open http://127.0.0.1:8089 in your browser.
• Sign in with the initialized admin account.
• Go to the token management page and create an access token.
• Save the plaintext token immediately (it is returned only once).

4) Create a worker identity in dashboard

• Go to Workers page and create a worker.
• Copy and securely store the startup command from the creation dialog (WORKER_SECRET is one-time visible).

5) Run worker

Warning

Workers support different runtimes and environments. The current release only provides worker-docker. This section uses the Docker runtime as an example.

1. Log in to the machine where the worker will be deployed.

   • Ensure Docker Engine is installed.
   • Ensure the worker can reach the console gRPC endpoint.

2. Download the latest worker-docker binary from GitHub Releases:

   • https://github.com/onlyboxes/onlyboxes/releases/latest

3. Use the startup command values from the dashboard, and replace the binary path with your downloaded executable.

   • Workers reject insecure console endpoints by default; set WORKER_CONSOLE_INSECURE=true only to allow plaintext connections.

   # Example
   WORKER_CONSOLE_INSECURE=true \
   WORKER_CONSOLE_GRPC_TARGET=127.0.0.1:50051 \
   WORKER_ID=<worker_id> \
   WORKER_SECRET=<worker_secret> \
   ./onlyboxes-worker-docker

6) Verify readiness

• Confirm the worker is online on the dashboard Workers page.
• For REST API request examples, see API.md.
• If no tokens are configured, /mcp and execution APIs return 401 by design.
• Add the MCP endpoint http://127.0.0.1:8089/mcp in any LLM Chat Client, set the token, and verify it works correctly.

Production Checklist

• Replace all default credentials.
• Use a reverse proxy to enforce TLS for :8089 and :50051.
• Persist and back up the SQLite data directory (CONSOLE_DB_PATH).
• Run workers on isolated hosts to avoid sharing the Docker daemon with the console.
• Read the Configuration Reference below for all available options and adjust as needed.

Configuration Reference

Console (console)

Environment Variable	Default	Notes
CONSOLE_HTTP_ADDR	:8089	Dashboard + REST API listen address
CONSOLE_GRPC_ADDR	:50051	Worker registry gRPC listen address
CONSOLE_HASH_KEY	(required)	HMAC key for hashing worker secrets and access tokens
CONSOLE_DB_PATH	./db/onlyboxes-console.db	SQLite database path
CONSOLE_DB_BUSY_TIMEOUT_MS	5000	SQLite busy timeout
CONSOLE_TASK_RETENTION_DAYS	30	Retention for completed task records
CONSOLE_ENABLE_REGISTRATION	false	Allow admin to register non-admin accounts
CONSOLE_DASHBOARD_USERNAME	(empty)	Used only for first admin initialization
CONSOLE_DASHBOARD_PASSWORD	(empty)	Used only for first admin initialization

Worker (worker-docker)

Environment Variable	Default	Notes
WORKER_ID	(required)	Issued by POST /api/v1/workers
WORKER_SECRET	(required)	Issued once by POST /api/v1/workers
WORKER_CONSOLE_GRPC_TARGET	127.0.0.1:50051	Console gRPC target
WORKER_CONSOLE_INSECURE	false	false enforces TLS endpoint; set true only to allow plaintext console gRPC
WORKER_HEARTBEAT_INTERVAL_SEC	5	Worker heartbeat interval
WORKER_HEARTBEAT_JITTER_PCT	20	Heartbeat jitter percent
WORKER_PYTHON_EXEC_DOCKER_IMAGE	python:slim	Runtime image for pythonExec
WORKER_TERMINAL_EXEC_DOCKER_IMAGE	coolfan1024/onlyboxes-default-worker:0.0.3	Runtime image for terminalExec
WORKER_TERMINAL_OUTPUT_LIMIT_BYTES	1048576	Per-stream output limit

API Surfaces

• Dashboard auth: /api/v1/console/*
• Worker management (admin): /api/v1/workers*
• Command execution: /api/v1/commands/echo, /api/v1/commands/terminal
• Task execution: /api/v1/tasks*
• MCP (Streamable HTTP): POST /mcp

Development

Run backend from source

cd console
CONSOLE_HASH_KEY=$(openssl rand -hex 32) go run ./cmd/console

Run web dev server

yarn --cwd web install
yarn --cwd web dev

Web dev URL defaults to http://127.0.0.1:5178 and proxies /api/* to http://127.0.0.1:8089.

Useful docs

• Unified API reference: API.md
• Console internals: console/README/overview.md
• Worker internals: worker/worker-docker/README/overview.md
• API/proto guide: api/README/proto.md
• Web app guide: web/README.md

Release & Images

• GitHub workflow: .github/workflows/package-release.yml
• Console Docker image: coolfan1024/onlyboxes:<version> and coolfan1024/onlyboxes:latest
• Console binary includes embedded web assets

Security and Operational Notes

• Console does not provide built-in TLS/mTLS in this release; worker-docker requires explicit WORKER_CONSOLE_INSECURE=true to connect over plaintext.
• Put console HTTP (:8089) and gRPC (:50051) behind a reverse proxy/gateway and enforce TLS on public/external links.
• WORKER_SECRET and access token plaintext values are returned only at creation time.
• Dashboard login sessions are in-memory and are invalidated when console restarts.

License

GNU AGPL v3.0