Add intelligent system detection and Proxmox support

New features:
- detect-system.sh: Automatically detects target system type
  - Proxmox VE
  - pfSense
  - TrueNAS
  - UCS
  - Unknown/generic

- deploy-proxmox.sh: Automated Proxmox certificate deployment
  - Backs up existing certificates
  - Installs certificate to /etc/pve/local/pveproxy-ssl.*
  - Restarts pveproxy service
  - Fully automated deployment

- cert-manager.py enhancements:
  - Detects system type before proceeding
  - Uses system-specific deployment scripts when available
  - Shows detected system type in summary
  - Intelligent deployment based on system capabilities
  - Manual deployment instructions for unsupported systems

cert-manager.py

@@ -25,13 +25,45 @@ DEFAULT_CONFIG = {
     'last_common_name': ''
 }
 
+SYSTEM_TYPES = {
+    'proxmox': {
+        'name': 'Proxmox VE',
+        'deploy_script': 'deploy-proxmox.sh',
+        'key_location': '/tmp/{short_name}.key',
+        'default_port': '8006'
+    },
+    'pfsense': {
+        'name': 'pfSense',
+        'deploy_script': None,  # Manual deployment via web interface
+        'key_location': '/tmp/{short_name}.key',
+        'default_port': '443'
+    },
+    'truenas': {
+        'name': 'TrueNAS',
+        'deploy_script': None,  # Manual deployment via web interface
+        'key_location': '/tmp/{short_name}.key',
+        'default_port': '443'
+    },
+    'ucs': {
+        'name': 'Univention Corporate Server',
+        'deploy_script': None,
+        'key_location': '/tmp/{short_name}.key',
+        'default_port': '443'
+    },
+    'unknown': {
+        'name': 'Unknown System',
+        'deploy_script': None,
+        'key_location': '/tmp/{short_name}.key',
+        'default_port': '443'
+    }
+}
+
 def load_config():
     """Load configuration from file or return defaults"""
     if CONFIG_FILE.exists():
         try:
             with open(CONFIG_FILE, 'r') as f:
                 config = json.load(f)
-                # Merge with defaults to add any new fields
                 return {**DEFAULT_CONFIG, **config}
         except Exception as e:
             print(f"Warning: Could not load config: {e}")
@@ -66,6 +98,21 @@ def yes_no_prompt(prompt, default=True):
             return False
         print("Please answer 'y' or 'n'")
 
+def detect_system_type(target_host, script_dir):
+    """Detect the type of system on the target host"""
+    try:
+        result = subprocess.run(
+            [str(script_dir / 'detect-system.sh'), target_host],
+            capture_output=True,
+            text=True,
+            timeout=10
+        )
+        system_type = result.stdout.strip()
+        return system_type if system_type in SYSTEM_TYPES else 'unknown'
+    except Exception as e:
+        print(f"Warning: Could not detect system type: {e}")
+        return 'unknown'
+
 def main():
     print("=" * 60)
     print("Interactive Certificate Manager")
@@ -97,6 +144,15 @@ def main():
         print("Error: Target host is required!")
         sys.exit(1)
     
+    # Get script directory
+    script_dir = Path(__file__).parent.absolute()
+    
+    # Detect system type
+    print(f"\nDetecting system type on {target_host}...")
+    system_type = detect_system_type(target_host, script_dir)
+    system_info = SYSTEM_TYPES[system_type]
+    print(f"✓ Detected: {system_info['name']}")
+    
     common_name = prompt_with_default("Common Name (FQDN)", config['last_common_name'])
     
     if not common_name:
@@ -119,6 +175,7 @@ def main():
     print("\n" + "=" * 60)
     print("Summary:")
     print("=" * 60)
+    print(f"System Type:     {system_info['name']}")
     print(f"Target Host:     {target_host}")
     print(f"Common Name:     {common_name}")
     print(f"Country:         {country}")
@@ -142,9 +199,6 @@ def main():
     config['last_common_name'] = common_name
     save_config(config)
     
-    # Get script directory
-    script_dir = Path(__file__).parent.absolute()
-    
     print("\n" + "=" * 60)
     print("Step 1: Generating CSR on target host")
     print("=" * 60)
@@ -199,14 +253,39 @@ def main():
     
     cert_file = f"{short_name}-cert.pem"
     
-    if yes_no_prompt("Do you want to copy the certificate back to the target host?", True):
-        try:
-            # Copy certificate to target
-            subprocess.run(['scp', cert_file, f'root@{target_host}:/tmp/{short_name}.crt'], check=True)
-            print(f"\n✓ Certificate copied to target host at /tmp/{short_name}.crt")
-            print(f"  Private key is at /tmp/{short_name}.key")
-        except subprocess.CalledProcessError:
-            print("\nWarning: Failed to copy certificate to target host")
+    # Use system-specific deployment if available
+    if system_info['deploy_script']:
+        if yes_no_prompt(f"Deploy certificate to {system_info['name']} automatically?", True):
+            deploy_script = script_dir / system_info['deploy_script']
+            key_file = f"/tmp/{short_name}.key"  # Key is on remote host
+            
+            deploy_cmd = [
+                str(deploy_script),
+                target_host,
+                cert_file,
+                key_file,
+                short_name
+            ]
+            
+            try:
+                subprocess.run(deploy_cmd, check=True)
+            except subprocess.CalledProcessError as e:
+                print(f"\nError: Deployment failed with exit code {e.returncode}")
+                sys.exit(1)
+            except FileNotFoundError:
+                print(f"\nError: {system_info['deploy_script']} not found")
+                sys.exit(1)
+    else:
+        # Generic deployment - just copy files
+        if yes_no_prompt("Copy certificate back to the target host?", True):
+            try:
+                subprocess.run(['scp', cert_file, f'root@{target_host}:/tmp/{short_name}.crt'], check=True)
+                print(f"\n✓ Certificate copied to target host at /tmp/{short_name}.crt")
+                print(f"  Private key is at /tmp/{short_name}.key")
+                print(f"\n⚠ Manual installation required for {system_info['name']}")
+                print(f"  Please install the certificate through the web interface.")
+            except subprocess.CalledProcessError:
+                print("\nWarning: Failed to copy certificate to target host")
     
     print("\n" + "=" * 60)
     print("✓ Certificate Management Complete!")
@@ -217,6 +296,10 @@ def main():
     print(f"\nOn target host ({target_host}):")
     print(f"  - /tmp/{short_name}.key (Private Key - {key_bits} bits)")
     print(f"  - /tmp/{short_name}.crt (Certificate)")
+    
+    if system_type == 'proxmox':
+        print(f"\n✓ Access Proxmox at: https://{target_host}:{system_info['default_port']}")
+    
     print("\n")
 
 if __name__ == '__main__':

deploy-proxmox.sh

@@ -0,0 +1,68 @@
+#!/bin/bash
+# Deploy certificate to Proxmox host
+# Usage: ./deploy-proxmox.sh <hostname> <cert-file> <key-file> <short-name>
+
+set -e
+
+TARGET_HOST="$1"
+CERT_FILE="$2"
+KEY_FILE="$3"
+SHORT_NAME="$4"
+
+if [ $# -lt 4 ]; then
+    echo "Usage: $0 <hostname> <cert-file> <key-file> <short-name>"
+    exit 1
+fi
+
+echo "=========================================="
+echo "Proxmox Certificate Deployment"
+echo "=========================================="
+echo "Target:      $TARGET_HOST"
+echo "Certificate: $CERT_FILE"
+echo "Key file:    $KEY_FILE"
+echo "=========================================="
+echo ""
+
+# Backup existing certificates
+echo "[1/5] Backing up existing Proxmox certificates..."
+ssh root@${TARGET_HOST} "cp /etc/pve/local/pveproxy-ssl.pem /etc/pve/local/pveproxy-ssl.pem.bak.$(date +%Y%m%d-%H%M%S) 2>/dev/null || true"
+ssh root@${TARGET_HOST} "cp /etc/pve/local/pveproxy-ssl.key /etc/pve/local/pveproxy-ssl.key.bak.$(date +%Y%m%d-%H%M%S) 2>/dev/null || true"
+
+# Copy certificate to target
+echo "[2/5] Copying certificate to Proxmox..."
+scp "$CERT_FILE" root@${TARGET_HOST}:/tmp/${SHORT_NAME}.crt
+
+# Copy or retrieve key
+echo "[3/5] Copying private key to Proxmox..."
+if [ -f "$KEY_FILE" ]; then
+    scp "$KEY_FILE" root@${TARGET_HOST}:/tmp/${SHORT_NAME}.key
+else
+    echo "Note: Key file should already be on target at /tmp/${SHORT_NAME}.key"
+fi
+
+# Install certificate
+echo "[4/5] Installing certificate for Proxmox web interface..."
+ssh root@${TARGET_HOST} "cat /tmp/${SHORT_NAME}.crt > /etc/pve/local/pveproxy-ssl.pem && \
+    cat /tmp/${SHORT_NAME}.key > /etc/pve/local/pveproxy-ssl.key && \
+    chmod 640 /etc/pve/local/pveproxy-ssl.pem && \
+    chmod 640 /etc/pve/local/pveproxy-ssl.key"
+
+# Restart Proxmox web service
+echo "[5/5] Restarting Proxmox web interface..."
+ssh root@${TARGET_HOST} "systemctl restart pveproxy.service"
+
+echo ""
+echo "=========================================="
+echo "✓ Proxmox certificate deployed!"
+echo "=========================================="
+echo ""
+echo "Certificate installed at:"
+echo "  /etc/pve/local/pveproxy-ssl.pem"
+echo "  /etc/pve/local/pveproxy-ssl.key"
+echo ""
+echo "Backup created at:"
+echo "  /etc/pve/local/pveproxy-ssl.pem.bak.*"
+echo "  /etc/pve/local/pveproxy-ssl.key.bak.*"
+echo ""
+echo "Access Proxmox at: https://${TARGET_HOST}:8006"
+echo "=========================================="

detect-system.sh

@@ -0,0 +1,23 @@
+#!/bin/bash
+# Detect system type on remote host
+# Usage: ./detect-system.sh <hostname>
+
+TARGET_HOST="$1"
+
+if [ -z "$TARGET_HOST" ]; then
+    echo "Usage: $0 <hostname>"
+    exit 1
+fi
+
+# Try to detect system type
+if ssh -o ConnectTimeout=5 root@${TARGET_HOST} "test -f /usr/bin/pvesh" 2>/dev/null; then
+    echo "proxmox"
+elif ssh -o ConnectTimeout=5 root@${TARGET_HOST} "test -f /usr/local/bin/freenas-version || test -f /usr/local/bin/truenas-version" 2>/dev/null; then
+    echo "truenas"
+elif ssh -o ConnectTimeout=5 root@${TARGET_HOST} "test -f /usr/local/sbin/pfSsh.php" 2>/dev/null; then
+    echo "pfsense"
+elif ssh -o ConnectTimeout=5 root@${TARGET_HOST} "test -f /usr/sbin/univention-config-registry" 2>/dev/null; then
+    echo "ucs"
+else
+    echo "unknown"
+fi