{"id":2809,"date":"2019-02-01T01:24:18","date_gmt":"2019-01-31T17:24:18","guid":{"rendered":"https:\/\/damogame.cn:15443\/wordpress\/?p=2809"},"modified":"2019-02-01T01:24:18","modified_gmt":"2019-01-31T17:24:18","slug":"k8s-%e8%b6%85%e8%af%a6%e7%bb%86%e6%80%bb%e7%bb%93","status":"publish","type":"post","link":"https:\/\/i007.cc\/wordpress\/archives\/2809","title":{"rendered":"k8s \u8d85\u8be6\u7ec6\u603b\u7ed3"},"content":{"rendered":"<div class=\"article-header-box\">\n<div class=\"article-header\">\n<div class=\"article-title-box\"><\/div>\n<div class=\"article-info-box\">\n<div class=\"operating\">\u4e00\u4e2a\u76ee\u6807\uff1a\u5bb9\u5668\u64cd\u4f5c\uff1b\u4e24\u5730\u4e09\u4e2d\u5fc3\uff1b\u56db\u5c42\u670d\u52a1\u53d1\u73b0\uff1b\u4e94\u79cdPod\u5171\u4eab\u8d44\u6e90\uff1b\u516d\u4e2aCNI\u5e38\u7528\u63d2\u4ef6\uff1b\u4e03\u5c42\u8d1f\u8f7d\u5747\u8861\uff1b\u516b\u79cd\u9694\u79bb\u7ef4\u5ea6\uff1b\u4e5d\u4e2a\u7f51\u7edc\u6a21\u578b\u539f\u5219\uff1b\u5341\u7c7bIP\u5730\u5740\uff1b\u767e\u7ea7\u4ea7\u54c1\u7ebf\uff1b\u5343\u7ea7\u7269\u7406\u673a\uff1b\u4e07\u7ea7\u5bb9\u5668\uff1b\u76f8\u5982\u65e0\u4ebf\uff0cK8s\u6709\u4ebf\uff1a\u4ebf\u7ea7\u65e5\u670d\u52a1\u4eba\u6b21\u3002<\/div>\n<\/div>\n<\/div>\n<\/div>\n<article class=\"baidu_pl\">\n<div id=\"article_content\" class=\"article_content clearfix csdn-tracking-statistics\" data-pid=\"blog\" data-mod=\"popu_307\" data-dsm=\"post\">\n<div id=\"content_views\" class=\"htmledit_views\">\n<p><strong>\u4e00\u4e2a\u76ee\u6807\uff1a\u5bb9\u5668\u64cd\u4f5c<\/strong><br \/>\nKubernetes(k8s)\u662f\u81ea\u52a8\u5316\u5bb9\u5668\u64cd\u4f5c\u7684\u5f00\u6e90\u5e73\u53f0\u3002\u8fd9\u4e9b\u5bb9\u5668\u64cd\u4f5c\u5305\u62ec\uff1a\u90e8\u7f72\uff0c\u8c03\u5ea6\u548c\u8282\u70b9\u96c6\u7fa4\u95f4\u6269\u5c55\u3002<br \/>\n\u5177\u4f53\u529f\u80fd\uff1a<br \/>\n\u81ea\u52a8\u5316\u5bb9\u5668\u90e8\u7f72\u548c\u590d\u5236\u3002<br \/>\n\u5b9e\u65f6\u5f39\u6027\u6536\u7f29\u5bb9\u5668\u89c4\u6a21\u3002<br \/>\n\u5bb9\u5668\u7f16\u6392\u6210\u7ec4\uff0c\u5e76\u63d0\u4f9b\u5bb9\u5668\u95f4\u7684\u8d1f\u8f7d\u5747\u8861\u3002<br \/>\n\u8c03\u5ea6\uff1a\u5bb9\u5668\u5728\u54ea\u4e2a\u673a\u5668\u4e0a\u8fd0\u884c\u3002<br \/>\n\u7ec4\u6210\uff1a<br \/>\nkubectl:\u5ba2\u6237\u7aef\u547d\u4ee4\u884c\u5de5\u5177\uff0c\u4f5c\u4e3a\u6574\u4e2a\u7cfb\u7edf\u7684\u64cd\u4f5c\u5165\u53e3\u3002<br \/>\nkube-apiserver:\u4ee5REST API\u670d\u52a1\u5f62\u5f0f\u63d0\u4f9b\u63a5\u53e3\uff0c\u4f5c\u4e3a\u6574\u4e2a\u7cfb\u7edf\u7684\u63a7\u5236\u5165\u53e3\u3002<br \/>\nkube-controller-manager:\u6267\u884c\u6574\u4e2a\u7cfb\u7edf\u7684\u540e\u53f0\u4efb\u52a1\uff0c\u5305\u62ec\u8282\u70b9\u72b6\u6001\u72b6\u51b5\u3001Pod\u4e2a\u6570\u3001Pods\u548cService\u7684\u5173\u8054\u7b49\u3002<br \/>\nkube-scheduler:\u8d1f\u8d23\u8282\u70b9\u8d44\u6e90\u7ba1\u7406\uff0c\u63a5\u6536\u6765\u81eakube-apiserver\u521b\u5efaPods\u4efb\u52a1\uff0c\u5e76\u5206\u914d\u5230\u67d0\u4e2a\u8282\u70b9\u3002<br \/>\netcd:\u8d1f\u8d23\u8282\u70b9\u95f4\u7684\u670d\u52a1\u53d1\u73b0\u548c\u914d\u7f6e\u5171\u4eab\u3002<br \/>\nkube-proxy:\u8fd0\u884c\u5728\u6bcf\u4e2a\u8ba1\u7b97\u8282\u70b9\u4e0a\uff0c\u8d1f\u8d23Pod\u7f51\u7edc\u4ee3\u7406\u3002\u5b9a\u65f6\u4eceetcd\u83b7\u53d6\u5230service\u4fe1\u606f\u6765\u505a\u76f8\u5e94\u7684\u7b56\u7565\u3002<br \/>\nkubelet:\u8fd0\u884c\u5728\u6bcf\u4e2a\u8ba1\u7b97\u8282\u70b9\u4e0a\uff0c\u4f5c\u4e3aagent\uff0c\u63a5\u6536\u5206\u914d\u8be5\u8282\u70b9\u7684Pods\u4efb\u52a1\u53ca\u7ba1\u7406\u5bb9\u5668\uff0c\u5468\u671f\u6027\u83b7\u53d6\u5bb9\u5668\u72b6\u6001\uff0c\u53cd\u9988\u7ed9kube-apiserver\u3002<br \/>\nDNS\uff1a\u4e00\u4e2a\u53ef\u9009\u7684DNS\u670d\u52a1\uff0c\u7528\u4e8e\u4e3a\u6bcf\u4e2aService\u5bf9\u8c61\u521b\u5efaDNS\u8bb0\u5f55\uff0c\u8fd9\u6837\u6240\u6709\u7684Pod\u5c31\u53ef\u4ee5\u901a\u8fc7DNS\u8bbf\u95ee\u670d\u52a1\u4e86\u3002<br \/>\n\u4e0b\u9762\u662fK8s\u7684\u67b6\u6784\u62d3\u6251\u56fe\uff1a<br \/>\n<img decoding=\"async\" class=\"has\" src=\"http:\/\/img.mukewang.com\/5b0d07e90001142313480686.jpg\" alt=\"\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p><strong>\u4e24\u5730\u4e09\u4e2d\u5fc3<\/strong><br \/>\n\u4e24\u5730\u4e09\u4e2d\u5fc3\u5305\u62ec\u672c\u5730\u751f\u4ea7\u4e2d\u5fc3\u3001\u672c\u5730\u707e\u5907\u4e2d\u5fc3\u3001\u5f02\u5730\u707e\u5907\u4e2d\u5fc3\u3002<br \/>\n<img decoding=\"async\" class=\"has\" src=\"http:\/\/img.mukewang.com\/5b0d084d00014d4413201062.jpg\" alt=\"\u56fe\u7247\u63cf\u8ff0\" \/><br \/>\n\u4e24\u5730\u4e09\u4e2d\u5fc3\u8981\u89e3\u51b3\u7684\u4e00\u4e2a\u91cd\u8981\u95ee\u9898\u5c31\u662f\u6570\u636e\u4e00\u81f4\u6027\u95ee\u9898\u3002k8s\u4f7f\u7528etcd\u7ec4\u4ef6\u4f5c\u4e3a\u4e00\u4e2a\u9ad8\u53ef\u7528\u3001\u5f3a\u4e00\u81f4\u6027\u7684\u670d\u52a1\u53d1\u73b0\u5b58\u50a8\u4ed3\u5e93\u3002\u7528\u4e8e\u914d\u7f6e\u5171\u4eab\u548c\u670d\u52a1\u53d1\u73b0\u3002<br \/>\n\u5b83\u4f5c\u4e3a\u4e00\u4e2a\u53d7\u5230Zookeeper\u548cdoozer\u542f\u53d1\u800c\u50ac\u751f\u7684\u9879\u76ee\u3002\u9664\u4e86\u62e5\u6709\u4ed6\u4eec\u7684\u6240\u6709\u529f\u80fd\u4e4b\u5916\uff0c\u8fd8\u62e5\u6709\u4ee5\u4e0b4\u4e2a\u7279\u70b9\uff1a<br \/>\n\u7b80\u5355\uff1a\u57fa\u4e8ehttp+json\u7684api\u8ba9\u4f60\u7528curl\u547d\u4ee4\u5c31\u53ef\u4ee5\u8f7b\u677e\u4f7f\u7528\u3002<br \/>\n\u5b89\u5168\uff1a\u53ef\u9009SSL\u5ba2\u6237\u8ba4\u8bc1\u673a\u5236\u3002<br \/>\n\u5feb\u901f\uff1a\u6bcf\u4e2a\u5b9e\u4f8b\u6bcf\u79d2\u652f\u6301\u4e00\u5343\u6b21\u5199\u64cd\u4f5c\u3002<br \/>\n\u53ef\u4fe1\uff1a\u4f7f\u7528Raft\u7b97\u6cd5\u5145\u5206\u5b9e\u73b0\u4e86\u5206\u5e03\u5f0f\u3002<\/p>\n<p><strong>\u56db\u5c42\u670d\u52a1\u53d1\u73b0<\/strong><br \/>\n\u5148\u4e00\u5f20\u56fe\u89e3\u91ca\u4e00\u4e0b\u7f51\u7edc\u4e03\u5c42\u534f\u8bae\uff1a<br \/>\n<img decoding=\"async\" class=\"has\" src=\"http:\/\/img.mukewang.com\/5b0d085e0001fa2112361724.jpg\" alt=\"\u56fe\u7247\u63cf\u8ff0\" \/><br \/>\nk8s\u63d0\u4f9b\u4e86\u4e24\u79cd\u65b9\u5f0f\u8fdb\u884c\u670d\u52a1\u53d1\u73b0\uff1a<br \/>\n\u73af\u5883\u53d8\u91cf\uff1a\u5f53\u521b\u5efa\u4e00\u4e2aPod\u7684\u65f6\u5019\uff0ckubelet\u4f1a\u5728\u8be5Pod\u4e2d\u6ce8\u5165\u96c6\u7fa4\u5185\u6240\u6709Service\u7684\u76f8\u5173\u73af\u5883\u53d8\u91cf\u3002\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u8981\u60f3\u4e00\u4e2aPod\u4e2d\u6ce8\u5165\u67d0\u4e2aService\u7684\u73af\u5883\u53d8\u91cf\uff0c\u5219\u5fc5\u987bService\u8981\u5148\u6bd4\u8be5Pod\u521b\u5efa\u3002\u8fd9\u4e00\u70b9\uff0c\u51e0\u4e4e\u4f7f\u5f97\u8fd9\u79cd\u65b9\u5f0f\u8fdb\u884c\u670d\u52a1\u53d1\u73b0\u4e0d\u53ef\u7528\u3002<br \/>\n\u6bd4\u5982\uff0c\u4e00\u4e2aServiceName\u4e3aredis-master\u7684Service\uff0c\u5bf9\u5e94\u7684ClusterIP:Port\u4e3a10.0.0.11:6379\uff0c\u5219\u5bf9\u5e94\u7684\u73af\u5883\u53d8\u91cf\u4e3a\uff1a<br \/>\n<img decoding=\"async\" class=\"has\" src=\"http:\/\/img.mukewang.com\/5b0d092200012b4f12040644.jpg\" alt=\"\u56fe\u7247\u63cf\u8ff0\" \/><br \/>\nDNS\uff1a\u53ef\u4ee5\u901a\u8fc7cluster add-on\u7684\u65b9\u5f0f\u8f7b\u677e\u7684\u521b\u5efaKubeDNS\u6765\u5bf9\u96c6\u7fa4\u5185\u7684Service\u8fdb\u884c\u670d\u52a1\u53d1\u73b0\u3002<br \/>\n\u4ee5\u4e0a\u4e24\u79cd\u65b9\u5f0f\uff0c\u4e00\u4e2a\u662f\u57fa\u4e8etcp\uff0c<a href=\"https:\/\/www.baidu.com\/s?wd=%E4%BC%97%E6%89%80%E5%91%A8%E7%9F%A5&amp;tn=24004469_oem_dg&amp;rsv_dl=gh_pl_sl_csd\" target=\"_blank\" rel=\"noopener\">\u4f17\u6240\u5468\u77e5<\/a>\uff0cDNS\u662f\u57fa\u4e8eUDP\u7684\uff0c\u5b83\u4eec\u90fd\u662f\u5efa\u7acb\u5728\u56db\u5c42\u534f\u8bae\u4e4b\u4e0a\u3002<\/p>\n<p><strong>\u4e94\u79cdPod\u5171\u4eab\u8d44\u6e90<\/strong><br \/>\nPod\u662fK8s\u6700\u57fa\u672c\u7684\u64cd\u4f5c\u5355\u5143\uff0c\u5305\u542b\u4e00\u4e2a\u6216\u591a\u4e2a\u7d27\u5bc6\u76f8\u5173\u7684\u5bb9\u5668\uff0c\u4e00\u4e2aPod\u53ef\u4ee5\u88ab\u4e00\u4e2a\u5bb9\u5668\u5316\u7684\u73af\u5883\u770b\u4f5c\u5e94\u7528\u5c42\u7684\u201c\u903b\u8f91\u5bbf\u4e3b\u673a\u201d\uff1b\u4e00\u4e2aPod\u4e2d\u7684\u591a\u4e2a\u5bb9\u5668\u5e94\u7528\u901a\u5e38\u662f\u7d27\u5bc6\u8026\u5408\u7684\uff0cPod\u5728Node\u4e0a\u88ab\u521b\u5efa\u3001\u542f\u52a8\u6216\u8005\u9500\u6bc1\uff1b\u6bcf\u4e2aPod\u91cc\u8fd0\u884c\u7740\u4e00\u4e2a\u7279\u6b8a\u7684\u88ab\u79f0\u4e4b\u4e3aVolume\u6302\u8f7d\u5377\uff0c\u56e0\u6b64\u4ed6\u4eec\u4e4b\u95f4\u901a\u4fe1\u548c\u6570\u636e\u4ea4\u6362\u66f4\u4e3a\u9ad8\u6548\uff0c\u5728\u8bbe\u8ba1\u65f6\u6211\u4eec\u53ef\u4ee5\u5145\u5206\u5229\u7528\u8fd9\u4e00\u7279\u6027\u5c06\u4e00\u7ec4\u5bc6\u5207\u76f8\u5173\u7684\u670d\u52a1\u8fdb\u7a0b\u653e\u5165\u540c\u4e00\u4e2aPod\u4e2d\u3002<br \/>\n<img decoding=\"async\" class=\"has\" src=\"http:\/\/img.mukewang.com\/5b0d094100014e1812240840.jpg\" alt=\"\u56fe\u7247\u63cf\u8ff0\" \/><br \/>\n\u540c\u4e00\u4e2aPod\u91cc\u7684\u5bb9\u5668\u4e4b\u95f4\u4ec5\u9700\u901a\u8fc7localhost\u5c31\u80fd\u4e92\u76f8\u901a\u4fe1\u3002\u4e00\u4e2aPod\u4e2d\u7684\u5e94\u7528\u5bb9\u5668\u5171\u4eab\u4e94\u79cd\u8d44\u6e90\uff1a<br \/>\nPID\u547d\u540d\u7a7a\u95f4\uff1aPod\u4e2d\u7684\u4e0d\u540c\u5e94\u7528\u7a0b\u5e8f\u53ef\u4ee5\u770b\u5230\u5176\u4ed6\u5e94\u7528\u7a0b\u5e8f\u7684\u8fdb\u7a0bID\u3002<br \/>\n\u7f51\u7edc\u547d\u540d\u7a7a\u95f4\uff1aPod\u4e2d\u7684\u591a\u4e2a\u5bb9\u5668\u80fd\u591f\u8bbf\u95ee\u540c\u4e00\u4e2aIP\u548c\u7aef\u53e3\u8303\u56f4\u3002<br \/>\nIPC\u547d\u540d\u7a7a\u95f4\uff1aPod\u4e2d\u7684\u591a\u4e2a\u5bb9\u5668\u80fd\u591f\u4f7f\u7528SystemV IPC\u6216POSIX\u6d88\u606f\u961f\u5217\u8fdb\u884c\u901a\u4fe1\u3002<br \/>\nUTS\u547d\u540d\u7a7a\u95f4\uff1aPod\u4e2d\u7684\u591a\u4e2a\u5bb9\u5668\u5171\u4eab\u4e00\u4e2a\u4e3b\u673a\u540d\u3002<br \/>\nVolumes(<a href=\"https:\/\/www.baidu.com\/s?wd=%E5%85%B1%E4%BA%AB%E5%AD%98%E5%82%A8&amp;tn=24004469_oem_dg&amp;rsv_dl=gh_pl_sl_csd\" target=\"_blank\" rel=\"noopener\">\u5171\u4eab\u5b58\u50a8<\/a>\u5377)\uff1aPod\u4e2d\u7684\u5404\u4e2a\u5bb9\u5668\u53ef\u4ee5\u8bbf\u95ee\u5728Pod\u7ea7\u522b\u5b9a\u4e49\u7684Volumes\u3002<br \/>\nPod\u7684\u751f\u547d\u5468\u671f\u901a\u8fc7Replication Controller\u6765\u7ba1\u7406\uff1b\u901a\u8fc7\u6a21\u677f\u8fdb\u884c\u5b9a\u4e49\uff0c\u7136\u540e\u5206\u914d\u5230\u4e00\u4e2aNode\u4e0a\u8fd0\u884c\uff0c\u5728Pod\u6240\u5305\u542b\u5bb9\u5668\u8fd0\u884c\u7ed3\u675f\u540e\uff0cPod\u7ed3\u675f\u3002<br \/>\nKubernetes\u4e3aPod\u8bbe\u8ba1\u4e86\u4e00\u5957\u72ec\u7279\u7684\u7f51\u7edc\u914d\u7f6e\uff0c\u5305\u62ec\uff1a\u4e3a\u6bcf\u4e2aPod\u5206\u914d\u4e00\u4e2aIP\u5730\u5740\uff0c\u4f7f\u7528Pod\u540d\u4f5c\u4e3a\u8363\u671f\u95f4\u901a\u4fe1\u7684\u4e3b\u673a\u540d\u7b49\u3002<\/p>\n<p><strong>\u516d\u4e2aCNI\u5e38\u7528\u63d2\u4ef6<\/strong><br \/>\nCNI(Container Network Interface)\u5bb9\u5668\u7f51\u7edc\u63a5\u53e3\uff0c\u662fLinux\u5bb9\u5668\u7f51\u7edc\u914d\u7f6e\u7684\u4e00\u7ec4\u6807\u51c6\u548c\u5e93\uff0c\u7528\u6237\u9700\u8981\u6839\u636e\u8fd9\u4e9b\u6807\u51c6\u548c\u5e93\u6765\u5f00\u53d1\u81ea\u5df1\u7684\u5bb9\u5668\u7f51\u7edc\u63d2\u4ef6\u3002CNI\u53ea\u4e13\u6ce8\u89e3\u51b3\u5bb9\u5668\u7f51\u7edc\u8fde\u63a5\u548c\u5bb9\u5668\u9500\u6bc1\u65f6\u7684\u8d44\u6e90\u91ca\u653e\uff0c\u63d0\u4f9b\u4e00\u5957\u6846\u67b6\uff0c\u6240\u4ee5CNI\u53ef\u4ee5\u652f\u6301\u5927\u91cf\u4e0d\u540c\u7684\u7f51\u7edc\u6a21\u5f0f\uff0c\u5e76\u4e14\u5bb9\u6613\u5b9e\u73b0\u3002<br \/>\n\u4e0b\u9762\u7528\u4e00\u5f20\u56fe\u8868\u793a\u516d\u4e2aCNI\u5e38\u7528\u63d2\u4ef6\uff1a<br \/>\n<img decoding=\"async\" class=\"has\" src=\"http:\/\/img.mukewang.com\/5b0d095d000118ed12000752.jpg\" alt=\"\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p><strong>\u4e03\u5c42\u8d1f\u8f7d\u5747\u8861<\/strong><br \/>\n\u63d0\u8d1f\u8f7d\u5747\u8861\u5c31\u4e0d\u5f97\u4e0d\u5148\u63d0\u670d\u52a1\u5668\u4e4b\u95f4\u7684\u901a\u4fe1\u3002<br \/>\nIDC(Internet Data Center),\u4e5f\u53ef\u79f0 \u6570\u636e\u4e2d\u5fc3\u3001\u673a\u623f\uff0c\u7528\u6765\u653e\u7f6e\u670d\u52a1\u5668\u3002IDC\u7f51\u7edc\u662f\u670d\u52a1\u5668\u95f4\u901a\u4fe1\u7684\u6865\u6881\u3002<br \/>\n<img decoding=\"async\" class=\"has\" src=\"http:\/\/img.mukewang.com\/5b0d0b300001e75011660882.jpg\" alt=\"\u56fe\u7247\u63cf\u8ff0\" \/><br \/>\n\u4e0a\u56fe\u91cc\u753b\u4e86\u5f88\u591a\u7f51\u7edc\u8bbe\u5907\uff0c\u5b83\u4eec\u90fd\u662f\u5e72\u5565\u7528\u7684\u5462\uff1f<br \/>\n\u8def\u7531\u5668\u3001\u4ea4\u6362\u673a\u3001MGW\/NAT\u90fd\u662f\u7f51\u7edc\u8bbe\u5907\uff0c\u6309\u7167\u6027\u80fd\u3001\u5185\u5916\u7f51\u5212\u5206\u4e0d\u540c\u7684\u89d2\u8272\u3002<br \/>\n\u5185\u7f51\u63a5\u5165\u4ea4\u6362\u673a\uff1a\u4e5f\u79f0\u4e3aTOR(top of rack),\u662f\u670d\u52a1\u5668\u63a5\u5165\u7f51\u7edc\u7684\u8bbe\u5907\u3002\u6bcf\u53f0\u5185\u7f51\u63a5\u5165\u4ea4\u6362\u673a\u4e0b\u805440-48\u53f0\u670d\u52a1\u5668\uff0c\u4f7f\u7528\u4e00\u4e2a\u63a9\u7801\u4e3a\/24\u7684\u7f51\u6bb5\u4f5c\u4e3a\u670d\u52a1\u5668\u5185\u7f51\u7f51\u6bb5\u3002<br \/>\n\u5185\u7f51<a href=\"https:\/\/www.baidu.com\/s?wd=%E6%A0%B8%E5%BF%83%E4%BA%A4%E6%8D%A2%E6%9C%BA&amp;tn=24004469_oem_dg&amp;rsv_dl=gh_pl_sl_csd\" target=\"_blank\" rel=\"noopener\">\u6838\u5fc3\u4ea4\u6362\u673a<\/a>\uff1a\u8d1f\u8d23IDC\u5185\u5404\u5185\u7f51\u63a5\u5165\u4ea4\u6362\u673a\u7684\u6d41\u91cf\u8f6c\u53d1\u53ca\u8de8IDC\u6d41\u91cf\u8f6c\u53d1\u3002<br \/>\nMGW\/NAT\uff1aMGW\u5373LVS\u7528\u6765\u505a\u8d1f\u8f7d\u5747\u8861\uff0cNAT\u7528\u4e8e\u5185\u7f51\u8bbe\u5907\u8bbf\u95ee\u5916\u7f51\u65f6\u505a\u5730\u5740\u8f6c\u6362\u3002<br \/>\n\u5916\u7f51\u6838\u5fc3\u8def\u7531\u5668\uff1a\u901a\u8fc7\u9759\u6001\u4e92\u8054\u8fd0\u8425\u5546\u6216BGP\u4e92\u8054\u7f8e\u56e2\u7edf\u4e00\u5916\u7f51\u5e73\u53f0\u3002<br \/>\n\u5148\u8bf4\u8bf4\u5404\u5c42\u8d1f\u8f7d\u5747\u8861\uff1a<br \/>\n\u4e8c\u5c42\u8d1f\u8f7d\u5747\u8861\uff1a\u57fa\u4e8eMAC\u5730\u5740\u7684\u4e8c\u5c42\u8d1f\u8f7d\u5747\u8861\u3002<br \/>\n\u4e09\u5c42\u8d1f\u8f7d\u5747\u8861\uff1a\u57fa\u4e8eIP\u5730\u5740\u7684\u8d1f\u8f7d\u5747\u8861\u3002<br \/>\n\u56db\u5c42\u8d1f\u8f7d\u5747\u8861\uff1a\u57fa\u4e8eIP+\u7aef\u53e3\u7684\u8d1f\u8f7d\u5747\u8861\u3002<br \/>\n\u4e03\u5c42\u8d1f\u8f7d\u5747\u8861\uff1a\u57fa\u4e8eURL\u7b49\u5e94\u7528\u5c42\u4fe1\u606f\u7684\u8d1f\u8f7d\u5747\u8861\u3002<br \/>\n\u8fd9\u91cc\u7528\u4e00\u5f20\u56fe\u6765\u8bf4\u8bf4\u56db\u5c42\u548c\u4e03\u5c42\u8d1f\u8f7d\u5747\u8861\u7684\u533a\u522b\uff1a<br \/>\n<img decoding=\"async\" class=\"has\" src=\"http:\/\/img.mukewang.com\/5b0d0b3e0001f76312240782.jpg\" alt=\"\u56fe\u7247\u63cf\u8ff0\" \/><br \/>\n\u4e0a\u9762\u56db\u5c42\u670d\u52a1\u53d1\u73b0\u8bb2\u7684\u4e3b\u8981\u662fk8s\u539f\u751f\u7684kube-proxy\u65b9\u5f0f\u3002K8s\u5173\u4e8e\u670d\u52a1\u7684\u66b4\u9732\u4e3b\u8981\u662f\u901a\u8fc7NodePort\u65b9\u5f0f\uff0c\u901a\u8fc7\u7ed1\u5b9aminion\u4e3b\u673a\u7684\u67d0\u4e2a\u7aef\u53e3\uff0c\u7136\u540e\u8fdb\u884cpod\u7684\u8bf7\u6c42\u8f6c\u53d1\u548c\u8d1f\u8f7d\u5747\u8861\uff0c\u4f46\u8fd9\u79cd\u65b9\u5f0f\u6709\u4e0b\u9762\u7684\u7f3a\u9677\uff1a<br \/>\nService\u53ef\u80fd\u6709\u5f88\u591a\u4e2a\uff0c\u5982\u679c\u6bcf\u4e2a\u90fd\u7ed1\u5b9a\u4e00\u4e2anode\u4e3b\u673a\u7aef\u53e3\u7684\u8bdd\uff0c\u4e3b\u673a\u9700\u8981\u5f00\u653e\u5916\u56f4\u7684\u7aef\u53e3\u8fdb\u884c\u670d\u52a1\u8c03\u7528\uff0c\u7ba1\u7406\u6df7\u4e71\u3002<br \/>\n\u65e0\u6cd5\u5e94\u7528\u5f88\u591a\u516c\u53f8\u8981\u6c42\u7684\u9632\u706b\u5899\u89c4\u5219\u3002<br \/>\n\u7406\u60f3\u7684\u65b9\u5f0f\u662f\u901a\u8fc7\u4e00\u4e2a\u5916\u90e8\u7684\u8d1f\u8f7d\u5747\u8861\u5668\uff0c\u7ed1\u5b9a\u56fa\u5b9a\u7684\u7aef\u53e3\uff0c\u6bd4\u598280\uff0c\u7136\u540e\u6839\u636e\u57df\u540d\u6216\u8005\u670d\u52a1\u540d\u5411\u540e\u9762\u7684Service ip\u8f6c\u53d1\uff0cNginx\u5f88\u597d\u7684\u89e3\u51b3\u4e86\u8fd9\u4e2a\u9700\u6c42\uff0c\u4f46\u95ee\u9898\u662f\u5982\u679c\u6709\u7684\u5fc3\u5f97\u670d\u52a1\u52a0\u5165\uff0c\u5982\u4f55\u53bb\u4fee\u6539Nginx\u7684\u914d\u7f6e\uff0c\u5e76\u4e14\u52a0\u8f7d\u8fd9\u4e9b\u914d\u7f6e\uff1fKubernetes\u7ed9\u51fa\u7684\u65b9\u6848\u5c31\u662fIngress\u3002\u8fd9\u662f\u4e00\u4e2a\u57fa\u4e8e7\u5c42\u7684\u65b9\u6848\u3002<\/p>\n<p><strong>\u516b\u79cd\u9694\u79bb\u7ef4\u5ea6<\/strong><br \/>\n<img decoding=\"async\" class=\"has\" src=\"http:\/\/img.mukewang.com\/5b0d0b4f000194dc09420666.jpg\" alt=\"\u56fe\u7247\u63cf\u8ff0\" \/><br \/>\nK8s\u96c6\u7fa4\u8c03\u5ea6\u8fd9\u8fb9\u9700\u8981\u5bf9\u4e0a\u9762\u4ece\u4e0a\u5230\u4e0b\u4ece\u7c97\u7c92\u5ea6\u5230\u7ec6\u7c92\u5ea6\u7684\u9694\u79bb\u505a\u76f8\u5e94\u7684\u8c03\u5ea6\u7b56\u7565\u3002<\/p>\n<p><strong>\u4e5d\u4e2a\u7f51\u7edc\u6a21\u578b\u539f\u5219<\/strong><br \/>\nK8s\u7f51\u7edc\u6a21\u578b\u8981\u7b26\u54084\u4e2a\u57fa\u7840\u539f\u5219\uff0c3\u4e2a\u7f51\u7edc\u8981\u6c42\u539f\u5219\uff0c1\u4e2a\u67b6\u6784\u539f\u5219\uff0c1\u4e2aIP\u539f\u5219\u3002<br \/>\n\u6bcf\u4e2aPod\u90fd\u62e5\u6709\u4e00\u4e2a\u72ec\u7acb\u7684IP\u5730\u5740\uff0c\u800c\u4e14\u5047\u5b9a\u6240\u6709Pod\u90fd\u5728\u4e00\u4e2a\u53ef\u4ee5\u76f4\u63a5\u8fde\u901a\u7684\u3001\u6241\u5e73\u7684\u7f51\u7edc\u7a7a\u95f4\u4e2d\uff0c\u4e0d\u7ba1\u662f\u5426\u8fd0\u884c\u5728\u540c\u4e00Node\u4e0a\u90fd\u53ef\u4ee5\u901a\u8fc7Pod\u7684IP\u6765\u8bbf\u95ee\u3002<br \/>\nK8s\u4e2d\u7684Pod\u7684IP\u662f\u6700\u5c0f\u7c92\u5ea6IP\u3002\u540c\u4e00\u4e2aPod\u5185\u6240\u6709\u7684\u5bb9\u5668\u5171\u4eab\u4e00\u4e2a\u7f51\u7edc\u5806\u6808\uff0c\u8be5\u6a21\u578b\u79f0\u4e3aIP-per-Pod\u6a21\u578b\u3002<br \/>\nPod\u7531docker0\u5b9e\u9645\u5206\u914d\u7684IP\uff0cPod\u5185\u90e8\u770b\u5230\u7684IP\u5730\u5740\u548c\u7aef\u53e3\u4e0e\u5916\u90e8\u4fdd\u6301\u4e00\u81f4\u3002\u540c\u4e00\u4e2aPod\u5185\u7684\u4e0d\u540c\u5bb9\u5668\u5171\u4eab\u7f51\u7edc\uff0c\u53ef\u4ee5\u901a\u8fc7localhost\u6765\u8bbf\u95ee\u5bf9\u65b9\u7684\u7aef\u53e3\uff0c\u7c7b\u4f3c\u540c\u4e00\u4e2aVM\u5185\u4e0d\u540c\u7684\u8fdb\u7a0b\u3002<br \/>\nIP-per-Pod\u6a21\u578b\u4ece\u7aef\u53e3\u5206\u914d\u3001\u57df\u540d\u89e3\u6790\u3001\u670d\u52a1\u53d1\u73b0\u3001\u8d1f\u8f7d\u5747\u8861\u3001\u5e94\u7528\u914d\u7f6e\u7b49\u89d2\u5ea6\u770b\uff0cPod\u53ef\u4ee5\u770b\u505a\u662f\u4e00\u53f0\u72ec\u7acb\u7684VM\u6216\u7269\u7406\u673a\u3002<br \/>\n\u6240\u6709\u5bb9\u5668\u90fd\u53ef\u4ee5\u4e0d\u7528NAT\u7684\u65b9\u5f0f\u540c\u522b\u7684\u5bb9\u5668\u901a\u4fe1\u3002<br \/>\n\u6240\u6709\u8282\u70b9\u90fd\u53ef\u4ee5\u5728\u4e0d\u540cNAT\u65b9\u5f0f\u4e0b\u540c\u6240\u6709\u5bb9\u5668\u5fc3\u75db\uff0c\u53cd\u4e4b\u4ea6\u7136\u3002<br \/>\n\u5bb9\u5668\u7684\u5730\u5740\u548c\u522b\u4eba\u770b\u5230\u7684\u5730\u5740\u662f\u540c\u4e00\u4e2a\u5730\u5740\u3002<br \/>\n\u8981\u7b26\u5408\u4e0b\u9762\u7684\u67b6\u6784\uff1a<br \/>\n<img decoding=\"async\" class=\"has\" src=\"http:\/\/img.mukewang.com\/5b0d0b9a000160ca11820898.jpg\" alt=\"\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>\u7531\u4e0a\u56fe\u67b6\u6784\u5f15\u7533\u51fa\u6765IP\u6982\u5ff5\u4ece\u96c6\u7fa4\u5916\u90e8\u5230\u96c6\u7fa4\u5185\u90e8<br \/>\n<img decoding=\"async\" class=\"has\" src=\"http:\/\/img.mukewang.com\/5b0d0baa0001e65d12360484.jpg\" alt=\"\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p><strong>\u5341\u7c7bIP\u5730\u5740<\/strong><br \/>\n\u5927\u5bb6\u90fd\u77e5\u9053IP\u5730\u5740\u5206\u4e3aABCDE\u7c7b\uff0c\u53e6\u5916\u8fd8\u67095\u7c7b\u7279\u6b8a\u7528\u9014\u7684IP\u3002<\/p>\n<ol>\n<li>A\u7c7b<br \/>\n1.0.0.0-1226.255.255.255\uff0c\u9ed8\u8ba4\u5b50\u7f51\u63a9\u7801\/8\uff0c\u5373255.0.0.0<br \/>\n2.B\u7c7b<br \/>\n128.0.0.0-191.255.255.255\uff0c\u9ed8\u8ba4\u5b50\u7f51\u63a9\u7801\/16\uff0c\u5373255.255.0.0<br \/>\n3.C\u7c7b<br \/>\n192.0.0.0-223.255.255.255\uff0c\u9ed8\u8ba4\u5b50\u7f51\u63a9\u7801\/24\uff0c\u5373255.255.255.0<br \/>\n4.D\u7c7b<br \/>\n224.0.0.0-239.255.255.255\uff0c\u4e00\u822c\u7528\u4e8e\u7ec4\u64ad<br \/>\n5.E\u7c7b<br \/>\n240.0.0.0-255.255.255.255(\u5176\u4e2d255.255.255.255\u4e3a\u5168\u7f51\u5e7f\u64ad\u5730\u5740),E\u7c7b\u5730\u5740\u4e00\u822c\u7528\u4e8e\u7814\u7a76\u7528\u9014<\/li>\n<li>0.0.0.0<br \/>\n\u4e25\u683c\u6765\u8bf4\uff0c0.0.0.0\u5df2\u7ecf\u4e0d\u662f\u4e00\u4e2a\u771f\u6b63\u610f\u4e49\u4e0a\u7684IP\u5730\u5740\u4e86\u3002\u5b83\u8868\u793a\u7684\u662f\u8fd9\u6837\u4e00\u4e2a\u96c6\u5408\uff1a\u6240\u6709\u4e0d\u6e05\u695a\u7684\u4e3b\u673a\u548c\u76ee\u7684\u7f51\u7edc\u3002\u8fd9\u91cc\u7684\u4e0d\u6e05\u695a\u662f\u6307\u5728\u672c\u673a\u7684\u8def\u7531\u8868\u91cc\u6ca1\u6709\u7279\u5b9a\u6761\u76ee\u6307\u660e\u5982\u4f55\u5230\u8fbe\u3002\u4f5c\u4e3a\u7f3a\u7701\u8def\u7531\u3002<br \/>\n7.127.0.0.1<br \/>\n\u672c\u673a\u5730\u5740<\/li>\n<li>224.0.0.1<br \/>\n\u7ec4\u64ad\u5730\u5740\u3002\u5982\u679c\u4f60\u7684\u4e3b\u673a\u5f00\u542f\u4e86IRDP\uff08internet\u8def\u7531\u53d1\u73b0\uff0c\u4f7f\u7528\u7ec4\u64ad\u529f\u80fd\uff09\uff0c\u90a3\u4e48\u4f60\u7684\u4e3b\u673a\u8def\u7531\u8868\u4e2d\u5e94\u8be5\u6709\u8fd9\u6837\u4e00\u6761\u8def\u7531\u3002<\/li>\n<li>169.254.x.x<br \/>\n\u4f7f\u7528\u4e86DHCP\u529f\u80fd\u81ea\u52a8\u83b7\u53d6\u4e86IP\u7684\u4e3b\u673a\uff0cDHCP\u670d\u52a1\u5668\u53d1\u751f\u6545\u969c\uff0c\u6216\u54cd\u5e94\u65f6\u95f4\u592a\u957f\u800c\u8d85\u51fa\u4e86\u4e00\u4e2a\u7cfb\u7edf\u89c4\u5b9a\u7684\u65f6\u95f4\uff0c\u7cfb\u7edf\u4f1a\u4e3a\u4f60\u5206\u914d\u8fd9\u6837\u4e00\u4e2aIP\uff0c\u4ee3\u8868\u7f51\u7edc\u4e0d\u80fd\u6b63\u5e38\u8fd0\u884c\u3002<\/li>\n<li>10.xxx\u3001172.16.x.x~172.31.x.x\u3001192.168.x.x<br 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