# Docker Isolation Guide

This guide covers running Automaker in a fully isolated Docker container. For background on why isolation matters, see the [Security Disclaimer](../DISCLAIMER.md).

## Quick Start

1. **Set your API key** (create a `.env` file in the project root):

   ```bash
   # Linux/Mac
   echo "ANTHROPIC_API_KEY=your-api-key-here" > .env

   # Windows PowerShell
   Set-Content -Path .env -Value "ANTHROPIC_API_KEY=your-api-key-here" -Encoding UTF8
   ```

2. **Build and run**:

   ```bash
   docker-compose up -d
   ```

3. **Access Automaker** at `http://localhost:3007`

4. **Stop**:

   ```bash
   docker-compose down
   ```

## How Isolation Works

The default `docker-compose.yml` configuration:

- Uses only Docker-managed volumes (no host filesystem access)
- Server runs as a non-root user
- Has no privileged access to your system

Projects created in the UI are stored inside the container at `/projects` and persist across restarts via Docker volumes.

## Mounting a Specific Project

If you need to work on a host project, create `docker-compose.project.yml`:

```yaml
services:
  server:
    volumes:
      - ./my-project:/projects/my-project:ro # :ro = read-only
```

Then run:

```bash
docker-compose -f docker-compose.yml -f docker-compose.project.yml up -d
```

**Tip**: Use `:ro` (read-only) when possible for extra safety.

### Fixing File Permission Issues

When mounting host directories, files created by the container may be owned by UID 1001 (the default container user), causing permission mismatches with your host user. To fix this, rebuild the image with your host UID/GID:

```bash
# Rebuild with your user's UID/GID
UID=$(id -u) GID=$(id -g) docker-compose build

# Then start normally
docker-compose up -d
```

This creates the container user with the same UID/GID as your host user, so files in mounted volumes have correct ownership.

## CLI Authentication (macOS)

On macOS, OAuth tokens are stored in Keychain (Claude) and SQLite (Cursor). Use these scripts to extract and pass them to the container:

### Claude CLI

```bash
# Extract and add to .env
echo "CLAUDE_OAUTH_CREDENTIALS=$(./scripts/get-claude-token.sh)" >> .env
```

### Cursor CLI

```bash
# Extract and add to .env (extracts from macOS Keychain)
echo "CURSOR_AUTH_TOKEN=$(./scripts/get-cursor-token.sh)" >> .env
```

**Note**: The cursor-agent CLI stores its OAuth tokens separately from the Cursor IDE:

- **macOS**: Tokens are stored in Keychain (service: `cursor-access-token`)
- **Linux**: Tokens are stored in `~/.config/cursor/auth.json` (not `~/.cursor`)

### Apply to container

```bash
# Restart with new credentials
docker-compose down && docker-compose up -d
```

**Note**: Tokens expire periodically. If you get authentication errors, re-run the extraction scripts.

## CLI Authentication (Linux/Windows)

On Linux/Windows, cursor-agent stores credentials in files, so you can either:

**Option 1: Extract tokens to environment variables (recommended)**

```bash
# Linux: Extract tokens to .env
echo "CURSOR_AUTH_TOKEN=$(jq -r '.accessToken' ~/.config/cursor/auth.json)" >> .env
```

**Option 2: Bind mount credential directories directly**

```yaml
# In docker-compose.override.yml
volumes:
  - ~/.claude:/home/automaker/.claude
  - ~/.config/cursor:/home/automaker/.config/cursor
```

## Troubleshooting

| Problem               | Solution                                                                                                                                          |
| --------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------- |
| Container won't start | Check `.env` has `ANTHROPIC_API_KEY` set. Run `docker-compose logs` for errors.                                                                   |
| Can't access web UI   | Verify container is running with `docker ps \| grep automaker`                                                                                    |
| Need a fresh start    | Run `docker-compose down && docker volume rm automaker-data && docker-compose up -d --build`                                                      |
| Cursor auth fails     | Re-extract token with `./scripts/get-cursor-token.sh` - tokens expire periodically. Make sure you've run `cursor-agent login` on your host first. |
| File permission errors | Rebuild with `UID=$(id -u) GID=$(id -g) docker-compose build` to match container user to your host user. See [Fixing File Permission Issues](#fixing-file-permission-issues). |
