152 lines
4.6 KiB
Python
152 lines
4.6 KiB
Python
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#!/usr/bin/env python3
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"""
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Check IP availability in range 192.168.11.28-99
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Excludes reserved range (192.168.11.10-25) and already-assigned static IPs
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"""
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import re
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from datetime import datetime
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# Reserved range for physical servers
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RESERVED_START = 10
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RESERVED_END = 25
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# Starting IP for new assignments
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START_IP = 28
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END_IP = 99
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# Get latest inventory
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import glob
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import os
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inventory_files = sorted(glob.glob("/home/intlc/projects/proxmox/CONTAINER_INVENTORY_*.md"), reverse=True)
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if not inventory_files:
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print("Error: No inventory file found. Run scan-all-containers.py first.")
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exit(1)
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inventory_file = inventory_files[0]
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print(f"Using inventory: {inventory_file}\n")
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# Read inventory and extract all used IPs
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used_ips = set()
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reserved_ips = set(range(RESERVED_START, RESERVED_END + 1))
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with open(inventory_file, 'r') as f:
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for line in f:
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# Match IP addresses in the table
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# Format: | VMID | Name | Host | Status | IP Config | Current IP | Hostname |
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if '|' in line and '192.168.11' in line:
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# Extract IP from "Current IP" column (6th column)
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parts = [p.strip() for p in line.split('|')]
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if len(parts) >= 7:
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current_ip = parts[6].strip()
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if current_ip and current_ip != 'N/A' and current_ip.startswith('192.168.11.'):
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ip_num = int(current_ip.split('.')[-1])
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used_ips.add(ip_num)
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# Also check IP Config column (5th column)
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ip_config = parts[5].strip()
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if ip_config and ip_config != 'N/A' and ip_config != 'dhcp' and ip_config != 'auto':
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# Extract IP from config like "192.168.11.100/24"
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ip_match = re.search(r'192\.168\.11\.(\d+)', ip_config)
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if ip_match:
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ip_num = int(ip_match.group(1))
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used_ips.add(ip_num)
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# Also check for IPs in reserved range that are used
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reserved_used = used_ips & reserved_ips
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# Find available IPs
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available_ips = []
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for ip_num in range(START_IP, END_IP + 1):
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if ip_num not in used_ips and ip_num not in reserved_ips:
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available_ips.append(ip_num)
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# Output results
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output_file = f"/home/intlc/projects/proxmox/IP_AVAILABILITY_{datetime.now().strftime('%Y%m%d_%H%M%S')}.md"
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with open(output_file, 'w') as f:
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f.write(f"""# IP Availability Check
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**Generated**: {datetime.now().strftime("%Y-%m-%d %H:%M:%S")}
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**Source**: {inventory_file}
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---
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## IP Range Analysis
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- **Reserved Range**: 192.168.11.{RESERVED_START}-{RESERVED_END} (Physical servers)
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- **Available Range**: 192.168.11.{START_IP}-{END_IP}
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- **Total IPs in Available Range**: {END_IP - START_IP + 1}
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---
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## Used IPs
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### Static IPs in Available Range ({START_IP}-{END_IP})
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""")
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static_in_range = sorted([ip for ip in used_ips if START_IP <= ip <= END_IP])
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if static_in_range:
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for ip_num in static_in_range:
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f.write(f"- 192.168.11.{ip_num}\n")
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else:
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f.write("- None\n")
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f.write(f"""
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### Reserved IPs Currently Used by Containers
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""")
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if reserved_used:
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for ip_num in sorted(reserved_used):
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f.write(f"- 192.168.11.{ip_num} ⚠️ **CONFLICT** (in reserved range)\n")
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else:
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f.write("- None\n")
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f.write(f"""
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---
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## Available IPs
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**Total Available**: {len(available_ips)} IPs
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### First 20 Available IPs (for DHCP conversion)
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""")
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for ip_num in available_ips[:20]:
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f.write(f"- 192.168.11.{ip_num}\n")
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if len(available_ips) > 20:
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f.write(f"\n... and {len(available_ips) - 20} more\n")
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f.write(f"""
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---
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## Summary
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- **Used IPs in range {START_IP}-{END_IP}**: {len(static_in_range)}
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- **Available IPs**: {len(available_ips)}
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- **Reserved IPs used by containers**: {len(reserved_used)} ⚠️
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---
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## Recommendation
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Starting from **192.168.11.{available_ips[0] if available_ips else START_IP}** for DHCP to static IP conversion.
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**Note**: {len(reserved_used)} container(s) are using IPs in the reserved range and should be moved first.
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""")
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print(f"=== IP Availability Check ===")
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print(f"\nReserved range (physical servers): 192.168.11.{RESERVED_START}-{RESERVED_END}")
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print(f"Available range: 192.168.11.{START_IP}-{END_IP}")
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print(f"\nUsed IPs in available range: {len(static_in_range)}")
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print(f"Available IPs: {len(available_ips)}")
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print(f"Reserved IPs used by containers: {len(reserved_used)}")
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if reserved_used:
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print(f" ⚠️ IPs: {', '.join([f'192.168.11.{ip}' for ip in sorted(reserved_used)])}")
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print(f"\nFirst 10 available IPs:")
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for ip_num in available_ips[:10]:
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print(f" - 192.168.11.{ip_num}")
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print(f"\nOutput file: {output_file}")
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