suna/backend/sandbox

Agent Sandbox

This directory contains the agent sandbox implementation - a Docker-based virtual environment that agents use as their own computer to execute tasks, access the web, and manipulate files.

Overview

The sandbox provides a complete containerized Linux environment with:

• Chrome browser for web interactions
• VNC server for accessing the Web User
• Web server for serving content (port 8080) -> loading html files from the /workspace directory
• Full file system access
• Full sudo access

Customizing the Sandbox

You can modify the sandbox environment for development or to add new capabilities:

1. Edit files in the docker/ directory
2. Build a custom image:

   cd backend/sandbox/docker
   docker compose build
   docker push kortix/suna:0.1.3.11
   

3. Test your changes locally using docker-compose

Using a Custom Snapshot

To use your custom sandbox snapshot:

1. Change the image parameter in docker-compose.yml (that defines the image name kortix/suna:___)
2. Build and create a snapshot in Daytona with the same name
3. Update the snapshot name in backend/sandbox/sandbox.py in the create_sandbox function
4. If using Daytona for deployment, update the snapshot reference there as well

Publishing New Versions

When publishing a new version of the sandbox:

1. Update the version number in docker-compose.yml (e.g., from 0.1.2 to 0.1.3)
2. Build the new image: docker compose build
3. Push the new version: docker push kortix/suna:0.1.3
4. Create a new snapshot in Daytona with the same name
5. Update all references to the snapshot version in:
   • backend/utils/config.py
   • Daytona snapshots
   • Any other services using this snapshot