Add LXC container support with single-command installer

scripts/README-lxc.md

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+# LXC Container Deployment Guide
+
+This guide explains how to deploy the Gitea Mirror application on Proxmox LXC containers while keeping your existing Docker containers.
+
+## Prerequisites
+
+- Proxmox VE installed and configured
+- Basic knowledge of LXC containers and Proxmox
+- Access to Proxmox web interface or CLI
+
+## Creating an LXC Container
+
+1. In Proxmox web interface, create a new LXC container:
+   - Choose Ubuntu 22.04 as the template
+   - Allocate appropriate resources (2GB RAM, 2 CPU cores recommended)
+   - At least 10GB of disk space
+   - Configure networking as needed
+
+2. Start the container and get a shell (either via Proxmox web console or SSH)
+
+## Deploying Gitea Mirror
+
+### Option 1: One-Command Installation (Recommended)
+
+This method allows you to install Gitea Mirror with a single command, without having to copy files manually:
+
+1. SSH into your LXC container:
+   ```bash
+   ssh root@lxc-container-ip
+   ```
+
+2. Run the installer script directly:
+   ```bash
+   curl -fsSL https://raw.githubusercontent.com/arunavo4/gitea-mirror/main/scripts/gitea-mirror-lxc-installer.sh | bash
+   ```
+
+3. The installer will:
+   - Download the Gitea Mirror repository
+   - Install all dependencies including Bun
+   - Build the application
+   - Set up a systemd service
+   - Start the application
+   - Display access information
+
+### Option 2: Manual Setup
+
+If you prefer to set up manually or the automatic script doesn't work for your environment:
+
+1. Install dependencies:
+   ```bash
+   apt update
+   apt install -y curl git sqlite3 build-essential
+   ```
+
+2. Install Bun:
+   ```bash
+   curl -fsSL https://bun.sh/install | bash
+   export BUN_INSTALL="/root/.bun"
+   export PATH="$BUN_INSTALL/bin:$PATH"
+   ```
+
+3. Clone or copy your project:
+   ```bash
+   git clone https://github.com/yourusername/gitea-mirror.git /opt/gitea-mirror
+   cd /opt/gitea-mirror
+   ```
+
+4. Build and initialize:
+   ```bash
+   bun install
+   bun run build
+   bun run manage-db init
+   ```
+
+5. Create a systemd service manually:
+   ```bash
+   nano /etc/systemd/system/gitea-mirror.service
+   # Add the service configuration as shown in the setup-lxc.sh script
+
+   systemctl daemon-reload
+   systemctl enable gitea-mirror.service
+   systemctl start gitea-mirror.service
+   ```
+
+## Connecting LXC and Docker Containers
+
+If you need your LXC container to communicate with Docker containers:
+
+1. On your host machine, create a bridge network:
+   ```bash
+   docker network create gitea-network
+   ```
+
+2. Find the bridge interface created by Docker:
+   ```bash
+   ip a | grep docker
+   # Look for something like docker0 or br-xxxxxxxx
+   ```
+
+3. In Proxmox, edit the LXC container's network configuration to use this bridge.
+
+## Accessing the Application
+
+Once deployed, you can access the Gitea Mirror application at:
+```
+http://lxc-container-ip:4321
+```
+
+## Troubleshooting
+
+- Check service status:
+  ```bash
+  systemctl status gitea-mirror
+  ```
+
+- View logs:
+  ```bash
+  journalctl -u gitea-mirror -f
+  ```
+
+- If the service fails to start, check permissions on the data directory:
+  ```bash
+  chown -R gitea-mirror:gitea-mirror /opt/gitea-mirror/data
+  ```
+
+- Verify Bun is installed correctly:
+  ```bash
+  bun --version
+  ```