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Version: v0.19.1

Sandbox quickstart

A secure, pluggable code execution backend designed for RAGFlow and other applications requiring isolated code execution environments.

Features:​

  • Seamless RAGFlow Integration — Works out-of-the-box with the code component of RAGFlow.
  • High Security — Uses gVisor for syscall-level sandboxing to isolate execution.
  • Customisable Sandboxing — Modify seccomp profiles easily to tailor syscall restrictions.
  • Pluggable Runtime Support — Extendable to support any programming language runtime.
  • Developer Friendly — Quick setup with a convenient Makefile.

Architecture​

The architecture consists of isolated Docker base images for each supported language runtime, managed by the executor manager service. The executor manager orchestrates sandboxed code execution using gVisor for syscall interception and optional seccomp profiles for enhanced syscall filtering.

Prerequisites​

  • Linux distribution compatible with gVisor.
  • gVisor installed and configured.
  • Docker version 24.0.0 or higher.
  • Docker Compose version 2.26.1 or higher (similar to RAGFlow requirements).
  • uv package and project manager installed.
  • (Optional) GNU Make for simplified command-line management.

Build Docker base images​

The sandbox uses isolated base images for secure containerised execution environments.

Build the base images manually:

docker build -t sandbox-base-python:latest ./sandbox_base_image/python
docker build -t sandbox-base-nodejs:latest ./sandbox_base_image/nodejs

Alternatively, build all base images at once using the Makefile:

make build

Next, build the executor manager image:

docker build -t sandbox-executor-manager:latest ./executor_manager

Running with RAGFlow​

  1. Verify that gVisor is properly installed and operational.

  2. Configure the .env file located at docker/.env:

  • Uncomment sandbox-related environment variables.
  • Enable the sandbox profile at the bottom of the file.
  1. Add the following entry to your /etc/hosts file to resolve the executor manager service:
127.0.0.1 sandbox-executor-manager
  1. Start the RAGFlow service as usual.

Running standalone​

Manual setup​

  1. Initialize the environment variables:
cp .env.example .env
  1. Launch the sandbox services with Docker Compose:
docker compose -f docker-compose.yml up
  1. Test the sandbox setup:
source .venv/bin/activate
export PYTHONPATH=$(pwd)
uv pip install -r executor_manager/requirements.txt
uv run tests/sandbox_security_tests_full.py

Using Makefile​

Run all setup, build, launch, and tests with a single command:

make

Monitoring​

To follow logs of the executor manager container:

docker logs -f sandbox-executor-manager

Or use the Makefile shortcut:

make logs