jingrow
b30fafd34f
主要优化： - 性能优化：只调用一次 get_all_ssls() API，在内存中构建域名集合进行快速查找 - 之前：N 个域名 = N 次 API 调用 - 现在：N 个域名 = 1 次 API 调用 - 性能提升：从 O(N×M) 降低到 O(N+M) - HTTP 连接复用：使用 requests.Session() 复用连接，减少连接开销 - 代码重构： - 提取 _fetch_apisix_data() 公共方法，减少重复代码 - 提取 _is_valid_domain() 方法，改进 IP 地址检测（支持 IPv4/IPv6） - 提取 _build_ssl_domains_set() 方法，构建 SSL 域名集合 - IP 地址检测改进：使用 ipaddress 模块，更准确地检测 IPv4 和 IPv6 这些优化显著提升了服务性能，特别是在处理大量路由和域名时。
272 lines
9.5 KiB
Python
Executable File
272 lines
9.5 KiB
Python
Executable File
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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"""
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APISIX 路由监听服务
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监听路由创建事件，自动为域名申请 SSL 证书
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"""
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import os
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import sys
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import json
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import time
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import logging
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import requests
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import ipaddress
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from typing import Set, Optional, Dict
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import sys
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sys.path.insert(0, os.path.dirname(os.path.abspath(__file__)))
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from ssl_manager import APISIXSSLManager
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# 配置日志
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logging.basicConfig(
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level=logging.INFO,
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format='%(asctime)s - %(name)s - %(levelname)s - %(message)s',
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handlers=[
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logging.FileHandler('/var/log/apisix-route-watcher.log'),
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logging.StreamHandler(sys.stdout)
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]
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)
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logger = logging.getLogger(__name__)
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class RouteWatcher:
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"""路由监听器"""
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def __init__(self, config_path: str = None):
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"""初始化监听器"""
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self.ssl_manager = APISIXSSLManager(config_path)
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# 从环境变量或配置获取 APISIX 配置
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self.apisix_admin_url = os.getenv('APISIX_ADMIN_URL', 'http://localhost:9180')
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self.apisix_admin_key = os.getenv('APISIX_ADMIN_KEY', '8206e6e42b6b53243c52a767cc633137')
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# 创建 HTTP 会话，复用连接
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self.session = requests.Session()
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self.session.headers.update({
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'X-API-KEY': self.apisix_admin_key,
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'Content-Type': 'application/json'
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})
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def _get_apisix_headers(self):
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"""获取 APISIX Admin API 请求头"""
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return {
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'X-API-KEY': self.apisix_admin_key,
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'Content-Type': 'application/json'
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}
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def get_all_routes(self) -> list:
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"""获取所有路由"""
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try:
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response = requests.get(
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f"{self.apisix_admin_url}/apisix/admin/routes",
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headers=self._get_apisix_headers(),
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timeout=10
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)
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if response.status_code == 200:
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data = response.json()
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return data.get('list', [])
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else:
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logger.error(f"获取路由失败: {response.status_code}")
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return []
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except Exception as e:
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logger.error(f"获取路由异常: {e}")
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return []
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def get_all_ssls(self) -> list:
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"""获取所有 SSL 配置"""
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try:
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response = requests.get(
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f"{self.apisix_admin_url}/apisix/admin/ssls",
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headers=self._get_apisix_headers(),
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timeout=10
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)
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if response.status_code == 200:
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data = response.json()
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return data.get('list', [])
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else:
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logger.error(f"获取 SSL 配置失败: {response.status_code}")
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return []
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except Exception as e:
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logger.error(f"获取 SSL 配置异常: {e}")
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return []
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def extract_domains_from_route(self, route: dict) -> Set[str]:
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"""从路由中提取域名"""
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domains = set()
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route_value = route.get('value', {})
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# 从 host 字段提取（单个域名，Dashboard 常用）
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host = route_value.get('host')
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if host and isinstance(host, str):
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domains.add(host)
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# 从 hosts 字段提取（域名数组）
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hosts = route_value.get('hosts', [])
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if hosts:
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if isinstance(hosts, list):
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domains.update(hosts)
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elif isinstance(hosts, str):
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domains.add(hosts)
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# 从 uri 字段提取（如果包含域名）
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uri = route_value.get('uri', '')
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if uri and '.' in uri and not uri.startswith('/'):
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# 可能是域名格式
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parts = uri.split('/')
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if parts[0] and '.' in parts[0]:
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domains.add(parts[0])
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# 从 match 字段提取
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match = route_value.get('match', {})
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if isinstance(match, dict):
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for key, value in match.items():
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if 'host' in key.lower() and isinstance(value, str):
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domains.add(value)
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return domains
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def extract_domains_from_ssl(self, ssl: dict) -> Set[str]:
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"""从 SSL 配置中提取域名"""
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domains = set()
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snis = ssl.get('value', {}).get('snis', [])
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if snis:
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domains.update(snis)
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return domains
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def _is_valid_domain(self, domain: str) -> bool:
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"""检查是否为有效域名（非 IP 地址和本地域名）"""
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# 跳过本地域名
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if domain in ['localhost', '127.0.0.1', '0.0.0.0']:
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return False
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# 检查是否为 IP 地址（支持 IPv4 和 IPv6）
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try:
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ipaddress.ip_address(domain)
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return False
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except ValueError:
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pass
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return True
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def _build_ssl_domains_set(self, ssls: list) -> Set[str]:
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"""构建所有已配置 SSL 的域名集合（用于快速查找）"""
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ssl_domains = set()
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for ssl in ssls:
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domains = self.extract_domains_from_ssl(ssl)
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ssl_domains.update(domains)
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return ssl_domains
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def should_request_cert(self, domain: str, existing_ssl_domains: Set[str]) -> bool:
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"""判断是否需要申请证书
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Args:
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domain: 要检查的域名
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existing_ssl_domains: 已存在的 SSL 域名集合（用于快速查找）
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"""
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# 检查是否为有效域名
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if not self._is_valid_domain(domain):
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return False
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# 检查是否已有 SSL 配置
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if domain in existing_ssl_domains:
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logger.info(f"域名已有 SSL 配置: {domain}")
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return False
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return True
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def process_new_domains(self):
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"""处理新域名"""
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# 优化：只获取一次路由和 SSL 配置，避免重复 API 调用
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routes = self.get_all_routes()
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ssls = self.get_all_ssls()
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# 构建已存在的 SSL 域名集合（用于快速查找）
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existing_ssl_domains = self._build_ssl_domains_set(ssls)
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# 按路由处理，同一路由的多个域名合并到一个证书
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for route in routes:
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route_value = route.get('value', {})
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# 跳过禁用的路由（status=0 表示禁用）
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if route_value.get('status') == 0:
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continue
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# 从路由中提取所有域名
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domains = self.extract_domains_from_route(route)
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if not domains:
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continue
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# 过滤出需要申请证书的域名（使用缓存的 SSL 域名集合）
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domains_to_request = [d for d in domains if self.should_request_cert(d, existing_ssl_domains)]
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if not domains_to_request:
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continue
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# 如果只有一个域名，单独申请
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if len(domains_to_request) == 1:
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domain = domains_to_request[0]
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logger.info(f"发现新域名，准备申请证书: {domain}")
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try:
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if self.ssl_manager.request_certificate(domain):
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logger.info(f"证书申请成功: {domain}")
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else:
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logger.error(f"证书申请失败: {domain}")
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except Exception as e:
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logger.error(f"处理域名异常 {domain}: {e}")
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else:
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# 多个域名，合并到一个证书申请（使用 SAN）
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primary_domain = domains_to_request[0]
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additional_domains = domains_to_request[1:]
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total_domains = len(additional_domains) + 1
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logger.info(f"发现同一路由中的多个域名，合并申请证书: {primary_domain} + {additional_domains}")
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try:
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if self.ssl_manager.request_certificate(primary_domain, additional_domains):
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logger.info(f"证书申请成功: {primary_domain} (包含 {total_domains} 个域名)")
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else:
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logger.error(f"证书申请失败: {primary_domain} + {additional_domains}")
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except Exception as e:
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logger.error(f"处理域名异常 {primary_domain} + {additional_domains}: {e}")
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def run(self, interval: int = 60):
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"""运行监听服务"""
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logger.info(f"路由监听服务启动，检查间隔: {interval} 秒")
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while True:
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try:
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self.process_new_domains()
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time.sleep(interval)
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except KeyboardInterrupt:
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logger.info("收到停止信号，退出服务")
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break
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except Exception as e:
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logger.error(f"监听服务异常: {e}")
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time.sleep(interval)
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def main():
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"""主函数"""
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import argparse
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parser = argparse.ArgumentParser(description='APISIX 路由监听服务')
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parser.add_argument('--interval', '-i', type=int, default=60,
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help='检查间隔（秒），默认 60')
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parser.add_argument('--config', '-c', help='配置文件路径（可选，用于覆盖默认配置）')
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parser.add_argument('--once', action='store_true',
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help='只执行一次，不持续监听')
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args = parser.parse_args()
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watcher = RouteWatcher(args.config)
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if args.once:
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watcher.process_new_domains()
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else:
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watcher.run(args.interval)
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if __name__ == '__main__':
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main()
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