248 строки
10 KiB
Python
248 строки
10 KiB
Python
#!/usr/bin/env python3
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from pathlib import Path
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import re
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import sys
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app_path = Path(sys.argv[1]) if len(sys.argv) > 1 else Path('/opt/virtuality/web/app.py')
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if not app_path.exists():
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raise SystemExit(f'app.py not found: {app_path}')
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template_path = app_path.parent / 'templates' / 'network.html'
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dashboard_template_path = app_path.parent / 'templates' / 'dashboard.html'
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if not template_path.exists():
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raise SystemExit(f'network.html not found: {template_path}')
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if not dashboard_template_path.exists():
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raise SystemExit(f'dashboard.html not found: {dashboard_template_path}')
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changed: list[str] = []
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text = app_path.read_text(encoding='utf-8')
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helpers = r'''
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def parse_dhcp_leases_output(output: str) -> list[dict[str, str]]:
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leases: list[dict[str, str]] = []
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for line in (output or '').splitlines():
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raw = line.strip()
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if not raw or raw.startswith('Expiry') or raw.startswith('-'):
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continue
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parts = raw.split()
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if len(parts) < 5:
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continue
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leases.append({
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'expiry': ' '.join(parts[0:2]),
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'mac': parts[2].lower(),
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'protocol': parts[3],
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'ip': parts[4].split('/')[0],
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'ip_with_prefix': parts[4],
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'hostname': parts[5] if len(parts) > 5 else '—',
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'client_id': parts[6] if len(parts) > 6 else '—',
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})
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return leases
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def dhcp_leases_hint(info: dict[str, Any], leases: list[dict[str, str]]) -> str:
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if leases:
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return 'DHCP leases найдены. IP можно использовать для проброса портов.'
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if not info.get('exists'):
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return 'NAT-сеть ещё не создана. Нажми «Создать / починить NAT-сеть».'
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info_text = str(info.get('info', ''))
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if 'Active: yes' not in info_text:
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return 'NAT-сеть есть, но не активна. Нажми «Создать / починить NAT-сеть» или проверь virsh net-start virtuality-nat.'
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return 'Leases пусты: запусти VM с сетью virtuality-nat, дождись загрузки ОС и DHCP. У статических IP и некоторых готовых образов lease может не появиться.'
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def vm_mac_addresses(vm_name: str) -> list[str]:
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result = run_cmd(['virsh', 'domiflist', vm_name], timeout=8)
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if not result.get('ok'):
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return []
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macs: list[str] = []
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for line in result.get('stdout', '').splitlines():
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match = re.search(r'([0-9a-fA-F]{2}:){5}[0-9a-fA-F]{2}', line)
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if match:
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macs.append(match.group(0).lower())
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return macs
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def resolve_vm_ip_for_table(vm_name: str) -> str:
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if not vm_name:
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return '—'
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try:
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result = run_cmd(['virsh', 'domifaddr', vm_name], timeout=8)
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if result.get('ok'):
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for ip in re.findall(r'\b(\d{1,3}(?:\.\d{1,3}){3})/\d+', result.get('stdout', '')):
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if not ip.startswith('127.') and not ip.startswith('169.254.'):
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return ip
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except Exception:
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pass
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try:
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resolved = network_core.resolve_vm_ip(vm_name)
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if resolved:
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return str(resolved)
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except Exception:
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pass
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try:
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leases = run_cmd(['virsh', 'net-dhcp-leases', network_core.NETWORK_NAME], timeout=8)
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if not leases.get('ok'):
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return '—'
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macs = set(vm_mac_addresses(vm_name))
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for lease in parse_dhcp_leases_output(leases.get('stdout', '')):
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if macs and lease.get('mac', '').lower() not in macs:
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continue
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ip = lease.get('ip') or ''
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if ip:
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return ip
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except Exception:
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pass
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return '—'
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def enrich_vms_with_ips(vms: list[dict[str, str]]) -> list[dict[str, str]]:
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enriched: list[dict[str, str]] = []
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for vm in vms:
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item = dict(vm)
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item['ip'] = resolve_vm_ip_for_table(item.get('name', '')) if item.get('name') else '—'
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enriched.append(item)
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return enriched
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'''
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# Remove older helper versions from previous patches to avoid stale NETWORK_NAME references.
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text = re.sub(
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r"\n\ndef parse_dhcp_leases_output\(output: str\).*?\n\ndef parse_virsh_list\(\) -> list\[dict\[str, str\]\]:",
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"\n\ndef parse_virsh_list() -> list[dict[str, str]]:",
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text,
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count=1,
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flags=re.S,
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)
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marker = '\n\ndef parse_virsh_list() -> list[dict[str, str]]:'
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if marker not in text:
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raise SystemExit('parse_virsh_list marker not found')
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text = text.replace(marker, helpers + marker, 1)
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changed.append('VM IP helpers were injected before parse_virsh_list')
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# Make parse_virsh_list always return enriched rows.
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text, count = re.subn(
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r"(def parse_virsh_list\(\) -> list\[dict\[str, str\]\]:.*?\n) return rows\n\n\ndef parse_pool_list",
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r"\1 return enrich_vms_with_ips(rows)\n\n\ndef parse_pool_list",
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text,
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count=1,
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flags=re.S,
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)
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if count:
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changed.append('parse_virsh_list return was replaced with enrich_vms_with_ips')
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elif 'return enrich_vms_with_ips(rows)' in text:
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changed.append('parse_virsh_list was already enriched')
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else:
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raise SystemExit('parse_virsh_list return marker not found')
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old_info = '''def libvirt_network_info() -> dict[str, Any]:
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info = run_cmd(['virsh', 'net-info', NETWORK_NAME], timeout=8)
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leases = run_cmd(['virsh', 'net-dhcp-leases', NETWORK_NAME], timeout=8)
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return {
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'name': NETWORK_NAME,
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'bridge': NAT_BRIDGE,
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'subnet': NAT_SUBNET,
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'gateway': NAT_GATEWAY,
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'dhcp': f'{DHCP_START} - {DHCP_END}',
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'exists': info['ok'],
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'info': info['stdout'] if info['ok'] else info['stderr'],
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'leases': leases['stdout'] if leases['ok'] else leases['stderr'],
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}
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'''
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new_info = '''def libvirt_network_info() -> dict[str, Any]:
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info = run_cmd(['virsh', 'net-info', NETWORK_NAME], timeout=8)
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leases = run_cmd(['virsh', 'net-dhcp-leases', NETWORK_NAME], timeout=8)
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leases_text = leases['stdout'] if leases['ok'] else leases['stderr']
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lease_rows = parse_dhcp_leases_output(leases['stdout'] if leases['ok'] else '') if 'parse_dhcp_leases_output' in globals() else []
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data = {
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'name': NETWORK_NAME,
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'bridge': NAT_BRIDGE,
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'subnet': NAT_SUBNET,
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'gateway': NAT_GATEWAY,
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'dhcp': f'{DHCP_START} - {DHCP_END}',
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'exists': info['ok'],
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'info': info['stdout'] if info['ok'] else info['stderr'],
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'leases': leases_text,
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'lease_rows': lease_rows,
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'lease_count': len(lease_rows),
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'lease_hint': '',
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}
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data['lease_hint'] = dhcp_leases_hint(data, lease_rows) if 'dhcp_leases_hint' in globals() else 'DHCP leases пусты.'
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return data
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'''
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if old_info in text:
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text = text.replace(old_info, new_info, 1)
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changed.append('libvirt_network_info was enriched with parsed lease rows')
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elif "'lease_rows':" in text:
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changed.append('libvirt_network_info was already enriched')
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else:
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changed.append('libvirt_network_info was not found in app.py, skipped')
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app_path.write_text(text, encoding='utf-8')
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html = template_path.read_text(encoding='utf-8')
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old_html = ''' <article class="card">
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<div class="card-head">
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<h2>DHCP leases</h2>
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<span class="pill">virsh net-dhcp-leases</span>
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</div>
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<pre>{{ ctx.nat.leases }}</pre>
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<div class="notice top-space">IP для проброса определяется автоматически: сначала через qemu-guest-agent, затем по DHCP leases и MAC-адресу VM.</div>
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</article>
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'''
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new_html = ''' <article class="card">
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<div class="card-head">
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<h2>DHCP leases</h2>
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<span class="pill">{{ ctx.nat.lease_count|default(0) }} active</span>
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</div>
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{% if ctx.nat.lease_rows %}
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<table>
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<thead><tr><th>IP</th><th>MAC</th><th>Host</th><th>Expiry</th></tr></thead>
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<tbody>
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{% for lease in ctx.nat.lease_rows %}
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<tr>
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<td class="strong">{{ lease.ip }}</td>
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<td>{{ lease.mac }}</td>
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<td>{{ lease.hostname }}</td>
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<td class="muted">{{ lease.expiry }}</td>
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</tr>
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{% endfor %}
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</tbody>
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</table>
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{% else %}
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<div class="notice">{{ ctx.nat.lease_hint|default('DHCP leases пусты.') }}</div>
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<pre>virsh net-dhcp-leases {{ ctx.nat.name }}
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virsh net-info {{ ctx.nat.name }}
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virsh domiflist ИМЯ_VM
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virsh domifaddr ИМЯ_VM</pre>
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{% endif %}
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<div class="notice top-space">IP для проброса определяется автоматически: сначала через qemu-guest-agent, затем по DHCP leases и MAC-адресу VM. Если внутри образа статический IP, leases может быть пустым — тогда лучше добавить ручной IP-режим следующим шагом.</div>
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</article>
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'''
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if old_html in html:
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html = html.replace(old_html, new_html, 1)
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changed.append('DHCP leases UI was replaced with structured table')
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elif 'ctx.nat.lease_rows' in html:
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changed.append('DHCP leases UI was already structured')
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else:
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changed.append('DHCP leases UI marker was not found, skipped')
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template_path.write_text(html, encoding='utf-8')
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dashboard_html = dashboard_template_path.read_text(encoding='utf-8')
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if '<th>IP</th>' not in dashboard_html:
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dashboard_html = dashboard_html.replace('<tr><th>ID</th><th>Name</th><th>State</th><th>Actions</th></tr>', '<tr><th>ID</th><th>Name</th><th>IP</th><th>State</th><th>Actions</th></tr>')
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dashboard_html = dashboard_html.replace('<td class="strong"><a class="table-link" href="/vm/{{ vm.name }}">{{ vm.name }}</a></td>\n <td><span', '<td class="strong"><a class="table-link" href="/vm/{{ vm.name }}">{{ vm.name }}</a></td>\n <td class="strong">{{ vm.ip|default(\'—\') }}</td>\n <td><span')
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dashboard_html = dashboard_html.replace('colspan="4" class="muted">Виртуальных машин пока нет', 'colspan="5" class="muted">Виртуальных машин пока нет')
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changed.append('Dashboard VM IP column was added')
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else:
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changed.append('Dashboard VM IP column was already present')
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dashboard_template_path.write_text(dashboard_html, encoding='utf-8')
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print('DHCP leases and VM IP patch applied:')
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for item in changed:
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print(f'- {item}')
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