KoalaSync/Caddyfile.example

# KoalaSync - Production Caddy Configuration Example
# Replace domains and paths with your actual setup.

# 1. Marketing Website & Invitation Bridge
sync.koalastuff.net {
    root * /var/www/koalasync/website/www
    file_server
    encode zstd gzip

    # Static Caching for high-performance PageSpeed (1 year with validation)
    @static {
        file
        path *.ico *.css *.js *.png *.svg *.webp
    }
    header @static Cache-Control "public, max-age=31536000, must-revalidate"

    # Security Headers & Content Security Policy (CSP)
    header {
        # Strict Content Security Policy (restricts scripts and connections to self, forbids frames)
        Content-Security-Policy "default-src 'self'; script-src 'self'; style-src 'self' 'unsafe-inline'; connect-src 'self'; img-src 'self' data:; object-src 'none'; frame-ancestors 'none';"
        # Prevent FLoC tracking
        Permissions-Policy interest-cohort=()
        # Security best practices
        Strict-Transport-Security "max-age=31536000; includeSubDomains; preload"
        X-Content-Type-Options nosniff
        X-Frame-Options DENY
        Referrer-Policy no-referrer-when-downgrade
    }
}

# 2. Relay Server (Socket.IO / WebSocket)
syncserver.koalastuff.net {
    reverse_proxy localhost:3000 {
        # Ensure WebSocket support is explicitly handled if needed
        # (Caddy usually handles this automatically)
        header_up Host {host}
        header_up X-Real-IP {remote_host}
    }

    # Security Headers for the relay
    header {
        X-Content-Type-Options nosniff
        X-Frame-Options DENY
        Referrer-Policy no-referrer
    }
}