🐳 DockTer Companion Agent

A secure, lightweight local companion agent built with FastAPI to enable one-click Docker container orchestration and live log streaming directly from your DockTer client.

🚀 Features

• One-Click Local Deployment: Extracts generated files, constructs an isolated workspace, and spins up your services using docker compose up --build -d.
• Live Logs Console: Streams real-time container log stdout/stderr via Server-Sent Events (SSE).
• Subprocess Command Compatibility: Dynamically resolves modern docker compose or legacy standalone docker-compose setups.
• Strict Security Architecture: Implements locked-down CORS configurations to prevent unauthorized web contexts from executing arbitrary commands or accessing the Docker daemon.

🛠️ Installation

You can install the companion agent locally in editable mode for development, or install it directly using standard Python packaging:

# Clone the repository and navigate to the agent folder
cd agent

# Install in editable mode
pip install -e .

Alternatively, you can run it directly using uvx or pipx (recommended):

uvx --from dockter-agent dockter-agent start

💻 CLI Usage

Once installed, the CLI tool exposes a standard set of commands:

# Start the companion agent on the default port (8001)
dockter-agent start

# Start the companion agent on a custom port
dockter-agent start --port 8002

🔒 Security Architecture

To protect your system, the agent enforces the following constraints:

1. Confined CORS Limits: Cross-Origin Resource Sharing (CORS) is explicitly restricted to local origins (http://localhost:5173) and the official production domain (https://dockter.dev). External, untrusted sites are completely blocked from calling the API.
2. Local Loopback Only: The Uvicorn server is bound strictly to 127.0.0.1 (localhost), preventing remote machines on the local network or public internet from accessing the endpoints.
3. Workspace Isolation: Projects are built and orchestrated inside designated, isolated subdirectories (dockter-{project_name}) in the directory where the agent is launched.