🔧 feat(casaos-setup-coolify): Add setup script for Coolify (#20)

* 🔧 feat(casaos-setup-coolify): Add setup script for Coolify

This commit adds a setup script for Coolify, a self-hosted platform for deploying web applications. The script performs the following tasks:

- Installs and configures an SSH server based on the detected operating system.
- Generates an SSH key pair for Coolify and sets the appropriate permissions.
- Creates a Docker network for Coolify.
- Provides an option to display the generated private SSH key.
- Includes a menu-driven interface for running the setup or clearing the Coolify cache.

The changes aim to simplify the setup process for Coolify on CasaOS, making it more accessible to users.

* ✨ feat: Update CasaOS Coolify setup script URL

The changes update the URL for the CasaOS Coolify setup script in the
README.md file. This ensures that users are directed to the correct
script location for setting up Coolify on CasaOS.

casaos-setup-coolify/README.md

@@ -0,0 +1,5 @@
+# Run command
+
+```bash
+bash -c "$(wget -qLO - https://raw.githubusercontent.com/bigbeartechworld/big-bear-scripts/master/casaos-setup-coolify/run.sh)"
+```

casaos-setup-coolify/run.sh

@@ -0,0 +1,167 @@
+#!/usr/bin/env bash
+
+# Set strict error handling
+set -euo pipefail
+
+# Set text colors
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+NC='\033[0m' # No Color
+
+# Check if running as root
+if [ "$EUID" -ne 0 ]; then 
+    echo -e "${RED}Please run as root (use sudo)${NC}"
+    exit 1
+fi
+
+# Function to print header
+print_header() {
+    echo "================================================"
+    echo "$1"
+    echo "================================================"
+    echo
+}
+
+# Detect OS
+if [ -f /etc/os-release ]; then
+    . /etc/os-release
+    OS=$ID
+fi
+
+# Install SSH based on distro
+install_ssh() {
+    case $OS in
+        ubuntu|debian)
+            
+            sudo apt update && sudo apt install -y openssh-server
+            
+            ;;
+        centos|rhel)
+            
+            sudo yum install -y openssh-server
+            
+            ;;
+        arch)
+            
+            sudo pacman -S --noconfirm openssh
+            
+            ;;
+        alpine)
+            
+            sudo apk add openssh
+            
+            ;;
+        opensuse*|sles)
+            
+            sudo zypper install -y openssh
+            
+            ;;
+    esac
+}
+
+# Configure SSH
+configure_ssh() {
+    # Backup original config
+    
+    sudo cp /etc/ssh/sshd_config /etc/ssh/sshd_config.backup
+    
+    # Ask user for PermitRootLogin preference
+    echo "Select PermitRootLogin setting:"
+    echo "1) yes            - Allows root login with password and key-based authentication"
+    echo "2) without-password - Allows root login with key-based authentication only"
+    echo "3) prohibit-password - Same as without-password (recommended for security)"
+    read -p "Enter choice (1-3): " root_login_choice
+
+    case $root_login_choice in
+        1) root_login="yes";;
+        2) root_login="without-password";;
+        3) root_login="prohibit-password";;
+        *) root_login="prohibit-password";;
+    esac
+
+    # Update only the required SSH settings while preserving other configurations
+    sudo sed -i "s/^#*PermitRootLogin.*/PermitRootLogin ${root_login}/" /etc/ssh/sshd_config
+    sudo sed -i "s/^#*PubkeyAuthentication.*/PubkeyAuthentication yes/" /etc/ssh/sshd_config
+    # Create required directories
+    
+    sudo mkdir -p /data/coolify/ssh/keys
+    
+    mkdir -p ~/.ssh
+    
+    # Generate SSH key pair
+    
+    ssh-keygen -t ed25519 -a 100 -f /data/coolify/ssh/keys/id.root@host.docker.internal -q -N "" -C root@coolify
+
+    # Set ownership and permissions
+    
+    sudo chown 9999 /data/coolify/ssh/keys/id.root@host.docker.internal
+    
+    cat /data/coolify/ssh/keys/id.root@host.docker.internal.pub >> ~/.ssh/authorized_keys
+    
+    chmod 600 ~/.ssh/authorized_keys
+    
+    chmod 700 ~/.ssh
+    # Restart SSH service
+    sudo systemctl restart ssh
+    sudo systemctl enable ssh
+}
+
+clear_cache() {
+    echo "Clearing Coolify cache..."
+    docker exec -it big-bear-coolify php artisan optimize
+    echo "Cache cleared successfully!"
+}
+
+# Main execution
+main() {
+    # Create Docker network for Coolify
+    docker network create coolify
+
+    echo "Installing SSH server..."
+    install_ssh
+    
+    echo "Configuring SSH for Coolify..."
+    configure_ssh
+    
+    echo "Verifying SSH service status..."
+    sudo systemctl status ssh    
+    
+    echo "Setup complete! Your SSH key is located at /data/coolify/ssh/keys/id.root@host.docker.internal"
+    
+    read -p "Would you like to display the private key now? (y/n): " show_key
+    if [[ $show_key =~ ^[Yy]$ ]]; then
+        echo "Here's your private key to copy into Coolify's Keys & Tokens menu:"
+        echo "----------------------------------------------------------------"
+        cat /data/coolify/ssh/keys/id.root@host.docker.internal
+        echo "----------------------------------------------------------------"
+    fi
+}
+
+menu() {
+    # Main menu
+    clear
+    print_header "BigBearCasaOS Coolify Setup V0.0.1"
+
+    echo "Here are some links:"
+    echo "https://community.bigbeartechworld.com"
+    echo "https://github.com/BigBearTechWorld"
+    echo ""
+    echo "If you would like to support me, please consider buying me a tea:"
+    echo "https://ko-fi.com/bigbeartechworld"
+    echo ""
+    echo "===================="
+    echo "Please select an option:"
+    echo "1) Setup SSH and configurations"
+    echo "2) Clear cache"
+    read -p "Enter choice (1-2): " menu_choice
+
+    case $menu_choice in
+        1) main;;
+        2) clear_cache;;
+        *) echo "Invalid option selected. Exiting.";;
+    esac
+}
+
+# Run the menu
+menu