{"id":3684,"date":"2025-08-20T16:45:11","date_gmt":"2025-08-20T08:45:11","guid":{"rendered":"https:\/\/aws-oncloudai.com\/?p=3684"},"modified":"2025-08-20T16:45:11","modified_gmt":"2025-08-20T08:45:11","slug":"full-solution-of-aws-load-balancer","status":"publish","type":"post","link":"https:\/\/aws-oncloudai.com\/zh_hk\/full-solution-of-aws-load-balancer\/","title":{"rendered":"AWS Load Balancer\u8ca0\u8f09\u5e73\u8861\u5668\u5168\u89e3"},"content":{"rendered":"<p>\u5728\u73fe\u4ee3\u96f2\u7aef\u74b0\u5883\u4e2d\uff0c\u8ca0\u8f09\u5e73\u8861\u5668\u662f\u78ba\u4fdd\u61c9\u7528\u9ad8\u53ef\u7528\u6027\u548c\u6548\u80fd\u7684\u95dc\u9375\u5143\u4ef6\u3002 AWS \u8ca0\u8f09\u5e73\u8861\u5668\uff08Elastic Load Balancing, ELB\uff09\u53ef\u63a5\u6536\u4f86\u81ea\u7528\u6236\u7aef\u7684\u61c9\u7528\u7a0b\u5f0f\u6d41\u91cf\uff0c\u4e26\u5c07\u5176\u667a\u6167\u5206\u767c\u81f3\u591a\u500b\u8a3b\u518a\u76ee\u6a19\uff0c\u4f8b\u5982\u8de8\u591a\u500b\u53ef\u7528\u5340\u7684EC2 \u57f7\u884c\u500b\u9ad4\u3001\u5bb9\u5668\u6216IP \u4f4d\u5740\u3002\u900f\u904e\u9019\u7a2e\u65b9\u5f0f\uff0cELB \u4e0d\u50c5\u5e73\u8861\u6d41\u91cf\uff0c\u9084\u80fd\u63d0\u5347\u61c9\u7528\u7684\u5bb9\u932f\u80fd\u529b\u8207\u53ef\u7528\u6027\u3002<\/p>\n<p>&nbsp;<\/p>\n<h4>AWS \u8ca0\u8f09\u5e73\u8861\u5668\u6982\u8ff0<\/h4>\n<p>AWS \u8ca0\u8f09\u5e73\u8861\u5668\u70ba\u7528\u6236\u7aef\u63d0\u4f9b\u55ae\u4e00\u5b58\u53d6\u9ede\uff0c\u667a\u6167\u8def\u7531\u8981\u6c42\u81f3\u904b\u4f5c\u6b63\u5e38\u7684\u76ee\u6a19\u5be6\u4f8b\uff0c\u4e26\u81ea\u52d5\u5075\u6e2c\u57f7\u884c\u7570\u5e38\u7684\u5be6\u4f8b\uff0c\u4e00\u65e6\u6062\u5fa9\uff0c\u6d41\u91cf\u6703\u91cd\u65b0\u8def\u7531\u3002\u5b83\u80fd\u52d5\u614b\u9069\u61c9\u6d41\u91cf\u6ce2\u52d5\uff0c\u7121\u9700\u4eba\u5de5\u5e79\u9810\uff0c\u540c\u6642\u652f\u63f4\u8de8\u53ef\u7528\u5340\u548c\u8de8\u5340\u57df\u5206\u767c\uff0c\u4ee5\u5be6\u73fe\u9ad8\u53ef\u7528\u6027\u3002<\/p>\n<p><strong>\u8ca0\u8f09\u5e73\u8861\u5668\u7684\u6838\u5fc3\u529f\u80fd\u5305\u62ec\uff1a<\/strong><\/p>\n<ul>\n<li>\u81ea\u52d5\u5c07\u6d41\u91cf\u6307\u6d3e\u81f3\u591a\u500b\u76ee\u6a19\u5be6\u4f8b<\/li>\n<li>\u5065\u5eb7\u6aa2\u67e5\u76ee\u6a19\u5be6\u4f8b\u4e26\u52d5\u614b\u8abf\u6574\u8def\u7531<\/li>\n<li>\u652f\u63f4SSL\/TLS \u89e3\u5bc6\u8207\u4f7f\u7528\u8005\u8eab\u4efd\u9a57\u8b49<\/li>\n<li>\u63d0\u4f9b\u5f48\u6027\u4f38\u7e2e\u80fd\u529b\u8207\u5bb9\u932f\u80fd\u529b<\/li>\n<li>\u53ef\u8207AWS \u6191\u8b49\u7ba1\u7406\u5668\u3001Auto Scaling\u3001CloudWatch \u7b49\u670d\u52d9\u96c6\u6210<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h4>AWS \u8ca0\u8f09\u5e73\u8861\u5668\u985e\u578b<\/h4>\n<p>AWS \u63d0\u4f9b\u56db\u7a2e\u8ca0\u8f09\u5e73\u8861\u5668\u985e\u578b\uff1a<\/p>\n<ol>\n<li><strong>\u7d93\u5178\u8ca0\u8f09\u5e73\u8861\u5668\uff08Classic Load Balancer, CLB\uff09<\/strong><\/li>\n<\/ol>\n<ul>\n<li>\u5728\u8acb\u6c42\u5c64\u7d1a\u548c\u9023\u7dda\u5c64\u7d1a\u5206\u767c\u6d41\u91cf\uff0c\u4e3b\u8981\u7528\u65bcEC2-Classic \u7db2\u8def\u3002<\/li>\n<li>\u529f\u80fd\u6709\u9650\uff0c\u4e0d\u652f\u63f4\u57fa\u65bc\u8def\u5f91\u6216\u57fa\u65bc\u4e3b\u6a5f\u7684\u8def\u7531\u3002<\/li>\n<li>\u50c5\u5efa\u8b70\u820a\u7248EC2-Classic \u7528\u6236\u4f7f\u7528\uff0c\u65b0\u7528\u6236\u63a8\u85a6ALB \u6216NLB\u3002<\/li>\n<\/ul>\n<ol>\n<li><strong>\u61c9\u7528\u7a0b\u5f0f\u8ca0\u8f09\u5e73\u8861\u5668\uff08Application Load Balancer, ALB\uff09<\/strong><\/li>\n<\/ol>\n<ul>\n<li>\u7b2c7 \u5c64\u8ca0\u8f09\u5e73\u8861\u5668\uff0c\u4f9d\u64daHTTP\/HTTPS \u5c01\u5305\u5167\u5bb9\u9032\u884c\u8def\u7531\u3002<\/li>\n<li>\u652f\u63f4\u57fa\u65bc\u8def\u5f91\u548c\u57fa\u65bc\u4e3b\u6a5f\u7684\u8def\u7531\uff0c\u4ee5\u53caLambda \u51fd\u6578\u8655\u7406\u8acb\u6c42\u3002<\/li>\n<li>\u539f\u751f\u652f\u63f4WebSocket \u548cHTTP\/2 \u5354\u8b70\uff0c\u9069\u5408\u5fae\u670d\u52d9\u548c\u5bb9\u5668\u5316\u67b6\u69cb\u3002<\/li>\n<li>\u53ef\u8a3b\u518aIP \u4f4d\u5740\u6216\u591a\u500b\u9023\u63a5\u57e0\u7684\u76ee\u6a19\uff0c\u4ee5\u5be6\u73fe\u9748\u6d3b\u7684\u6d41\u91cf\u5206\u767c\u3002<\/li>\n<\/ul>\n<ol>\n<li><strong>\u7db2\u8def\u8ca0\u8f09\u5e73\u8861\u5668\uff08Network Load Balancer, NLB\uff09<\/strong><\/li>\n<\/ol>\n<ul>\n<li>\u7b2c4 \u5c64\u8ca0\u8f09\u5e73\u8861\u5668\uff0c\u9069\u5408\u9ad8\u6548\u80fd\u548c\u6975\u4f4e\u5ef6\u9072\u9700\u6c42\u3002<\/li>\n<li>\u63d0\u4f9b\u975c\u614bIP\uff0c\u652f\u63f4TLS \u7d42\u6b62\uff0c\u8655\u7406\u767e\u842c\u7d1a\u8acb\u6c42\/\u79d2\u3002<\/li>\n<li>\u9069\u5408\u7ba1\u7406\u4e0d\u7a69\u5b9a\u6216\u7a81\u767c\u6d41\u91cf\uff0c\u907f\u514dDNS \u5feb\u53d6\u554f\u984c\u3002<\/li>\n<\/ul>\n<ol>\n<li><strong>\u7db2\u95dc\u8ca0\u8f09\u5e73\u8861\u5668\uff08Gateway Load Balancer, GLB\uff09<\/strong><\/li>\n<\/ol>\n<ul>\n<li>\u4e3b\u8981\u7528\u65bc\u7b2c\u4e09\u65b9\u865b\u64ec\u7db2\u8def\u8a2d\u5099\u7684\u90e8\u7f72\uff0c\u6d41\u91cf\u4e0d\u6703\u5728\u591a\u500b\u76ee\u6a19\u9593\u81ea\u52d5\u5206\u914d\u3002<\/li>\n<li>\u529f\u80fd\u8f03\u70ba\u5c08\u696d\uff0c\u5c0d\u591a\u6578\u4f7f\u7528\u8005\u800c\u8a00\u61c9\u7528\u5834\u666f\u6709\u9650\u3002<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h4>AWS \u8ca0\u8f09\u5e73\u8861\u5668\u5de5\u4f5c\u539f\u7406<\/h4>\n<p>AWS \u8ca0\u8f09\u5e73\u8861\u5668\u900f\u904e**\u5075\u807d\u5668\uff08Listener\uff09**\u6aa2\u67e5\u7528\u6236\u7aef\u8acb\u6c42\uff0c\u6839\u64da\u8a2d\u5b9a\u7684\u9023\u63a5\u57e0\u548c\u5354\u5b9a\u5c07\u8acb\u6c42\u8def\u7531\u5230\u8a3b\u518a\u7684\u57f7\u884c\u500b\u9ad4\u3002\u904b\u884c\u72c0\u6cc1\u6aa2\u67e5\u4fdd\u8b49\u50c5\u5411\u5065\u5eb7\u5be6\u4f8b\u767c\u9001\u6d41\u91cf\u3002\u9810\u8a2d\u60c5\u6cc1\u4e0b\uff0c\u8ca0\u8f09\u5e73\u8861\u5668\u6703\u5728\u5df2\u555f\u7528\u7684\u53ef\u7528\u5340\u4e4b\u9593\u5747\u52fb\u5206\u914d\u6d41\u91cf\uff0c\u4e26\u5efa\u8b70\u6bcf\u500b\u53ef\u7528\u5340\u57f7\u884c\u500b\u9ad4\u6578\u91cf\u5927\u81f4\u76f8\u7b49\u4ee5\u63d0\u9ad8\u5bb9\u932f\u80fd\u529b\u3002<\/p>\n<ul>\n<li><strong>\u5167\u90e8\u8ca0\u8f09\u5e73\u8861\u5668\uff08Internal ELB\uff09<\/strong>\uff1a\u50c5\u5728VPC \u5167\u90e8\u53ef\u8a2a\u554f\uff0c\u9069\u5408\u79c1\u6709\u5b50\u7db2\u8def\u61c9\u7528\u3002<\/li>\n<li><strong>\u5916\u90e8\u8ca0\u8f09\u5e73\u8861\u5668\uff08Internet-facing ELB\uff09<\/strong>\uff1a\u7bc0\u9ede\u64c1\u6709\u516c\u6709IP\uff0c\u53ef\u88ab\u7db2\u969b\u7db2\u8def\u5b58\u53d6\u3002<\/li>\n<\/ul>\n<p>\u900f\u904e\u8207 <strong>Auto Scaling\uff08ASG\uff09<\/strong> \u914d\u5408\uff0cELB \u53ef\u4ee5\u81ea\u52d5\u8b58\u5225\u6545\u969c\u5be6\u4f8b\u4e26\u6dd8\u6c70\uff0c\u540c\u6642\u555f\u52d5\u65b0\u5be6\u4f8b\uff0c\u4fdd\u6301\u61c9\u7528\u7a0b\u5f0f\u9ad8\u53ef\u7528\u3002 ASG \u6703\u9a57\u8b49\u5be6\u4f8b\u5065\u5eb7\u72c0\u6cc1\uff0c\u4e26\u8207ELB \u5354\u540c\u78ba\u4fdd\u6d41\u91cf\u50c5\u8def\u7531\u81f3\u6b63\u5e38\u904b\u4f5c\u7684\u5be6\u4f8b\u3002<\/p>\n<p>&nbsp;<\/p>\n<h4>\u9032\u968e\u529f\u80fd\u8207\u914d\u7f6e<\/h4>\n<ul>\n<li><strong>\u8def\u5f91\u8def\u7531\uff08Path-based routing\uff09<\/strong>\uff1aALB \u53ef\u4f9dURL \u8def\u5f91\u5c07\u6d41\u91cf\u5c0e\u5411\u81f3\u4e0d\u540c\u5f8c\u7aef\u670d\u52d9\u3002<\/li>\n<li><strong>\u57fa\u65bc\u4e3b\u6a5f\u7684\u8def\u7531\uff08Host-based routing\uff09<\/strong>\uff1a\u540c\u4e00ALB \u652f\u63f4\u591a\u500b\u7db2\u57df\u7684\u8acb\u6c42\u5206\u767c\u3002<\/li>\n<li><strong>\u53cd\u5411\u4ee3\u7406<\/strong>\uff1aALB \u53ef\u4f5c\u70ba\u53cd\u5411\u4ee3\u7406\uff0c\u5be6\u73fe\u8acb\u6c42\u5206\u767c\u8207\u8ca0\u8f09\u5e73\u8861\uff0c\u4f46\u50c5\u652f\u63f4\u975c\u614b\u76ee\u6a19\u3002<\/li>\n<li><strong>\u591a\u57e0\u8ca0\u8f09\u5206\u914d<\/strong>\uff1a\u652f\u63f4\u55ae\u4e00\u5be6\u4f8b\u591a\u500b\u9023\u63a5\u57e0\u8a3b\u518a\uff0c\u63d0\u9ad8\u5bb9\u5668\u5316\u61c9\u7528\u6548\u80fd\u3002<\/li>\n<li><strong>\u8de8\u5340\u57df\u8ca0\u8f09\u5e73\u8861<\/strong>\uff1a\u53ef\u5728\u4e0d\u540cAWS \u5340\u57df\u9593\u5747\u52fb\u5206\u914d\u6d41\u91cf\uff0c\u63d0\u9ad8\u5168\u7403\u53ef\u7528\u6027\u3002<\/li>\n<li><strong>\u5b89\u5168\u96c6\u6210<\/strong>\uff1a\u652f\u63f4SSL\/TLS \u52a0\u5bc6\u3001AWS WAF \u9632\u8b77\u8207IAM \u8a8d\u8b49\u3002<\/li>\n<\/ul>\n<p>\u914d\u7f6e\u8ca0\u8f09\u5e73\u8861\u5668\u6642\uff0c\u9700\u8981\uff1a<\/p>\n<ol>\n<li>\u9078\u64c7\u8ca0\u8f09\u5e73\u8861\u5668\u985e\u578b\uff08ALB\u3001NLB \u6216GLB\uff09<\/li>\n<li>\u8a2d\u5b9a\u53ef\u7528\u5340\u8207\u5b50\u7db2<\/li>\n<li>\u914d\u7f6e\u5b89\u5168\u6027\u7fa4\u7d44\u8207\u9023\u63a5\u57e0<\/li>\n<li>\u5efa\u7acb\u76ee\u6a19\u7fa4\u7d44\u4e26\u8a3b\u518a\u5be6\u4f8b<\/li>\n<li>\u8a2d\u5b9a\u5065\u5eb7\u6aa2\u67e5\u7b56\u7565<\/li>\n<li>\u6e2c\u8a66\u4e26\u4e0a\u7dda<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<h4>AWS \u8ca0\u8f09\u5e73\u8861\u5668\u5c40\u9650\u6027<\/h4>\n<p>\u96d6\u7136ELB \u5728\u9ad8\u53ef\u7528\u6027\u548c\u5f48\u6027\u65b9\u9762\u8868\u73fe\u512a\u7570\uff0c\u4f46\u4ecd\u5b58\u5728\u4e00\u4e9b\u9650\u5236\uff1a<\/p>\n<ul>\n<li><strong>\u5ef6\u9072<\/strong>\uff1a\u5c24\u5176\u5728\u5f8c\u7aef\u5be6\u4f8bCPU \u6216\u8a18\u61b6\u9ad4\u4f7f\u7528\u7387\u9ad8\u3001\u7db2\u8def\u914d\u7f6e\u4e0d\u7576\u6642\uff0c\u53ef\u80fd\u51fa\u73fe\u8acb\u6c42\u5ef6\u9072\u3002<\/li>\n<li><strong>\u76ee\u6a19\u7d44\u9650\u5236<\/strong>\uff1aNLB \u5c0d\u76ee\u6a19\u7d44\u5167\u5be6\u4f8b\u6578\u91cf\u6709\u914d\u984d\u9650\u5236\uff0c\u53ef\u900f\u904e\u5782\u76f4\u64f4\u5c55\u6216\u591a\u500bNLB \u89e3\u6c7a\uff0c\u4f46\u7121\u6cd5\u5b8c\u5168\u6d88\u9664\u3002<\/li>\n<li><strong>\u9023\u7dda\u7a69\u5b9a\u6027<\/strong>\uff1a\u55ae\u4e00NLB \u5728\u8655\u7406\u5927\u91cf\u5df2\u5efa\u7acb\u9023\u7dda\u6642\uff0c\u5076\u723e\u6703\u51fa\u73fe\u77ed\u66ab\u65b7\u958b\u3002<\/li>\n<li><strong>\u529f\u80fd\u9650\u5236<\/strong>\uff1a\u50b3\u7d71ELB 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