{"id":32900,"date":"2022-11-04T21:01:37","date_gmt":"2023-08-24T02:04:21","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%85%b3%e4%ba%8ek8s%e4%b8%addns%e5%90%8d%e7%a7%b0%e8%a7%a3%e6%9e%90%e6%b5%81%e7%a8%8b\/"},"modified":"2024-04-28T23:01:51","modified_gmt":"2024-04-28T15:01:51","slug":"%e5%85%b3%e4%ba%8ek8s%e4%b8%addns%e5%90%8d%e7%a7%b0%e8%a7%a3%e6%9e%90%e6%b5%81%e7%a8%8b","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%85%b3%e4%ba%8ek8s%e4%b8%addns%e5%90%8d%e7%a7%b0%e8%a7%a3%e6%9e%90%e6%b5%81%e7%a8%8b\/","title":{"rendered":"\u5173\u4e8ek8s\u4e2dDNS\u540d\u79f0\u89e3\u6790\u6d41\u7a0b"},"content":{"rendered":"<h1>\u5173\u4e8ek8s\u4e2dDNS\u540d\u79f0\u89e3\u6790\u6d41\u7a0b<\/h1>\n<h2>\u9996\u5148<\/h2>\n<p>Kubernetes\u662f\u4e00\u4e2a\u5f00\u6e90\u7684\u7f16\u6392\u7cfb\u7edf\uff0c\u7528\u4e8e\u96c6\u4e2d\u7ba1\u7406\u548c\u64cd\u4f5c\u5bb9\u5668\u5316\u7684\u5e94\u7528\u7a0b\u5e8f\u3002\u5728\u5927\u578b\u7cfb\u7edf\u4e2d\uff0c\u4e3a\u4e86\u4fdd\u6301\u670d\u52a1\u7684\u53ef\u7528\u6027\u548c\u53ef\u6269\u5c55\u6027\uff0c\u5185\u90e8\u670d\u52a1\u4e4b\u95f4\u7684\u901a\u4fe1\u53d8\u5f97\u975e\u5e38\u91cd\u8981\u3002<\/p>\n<p>DNS\u7684\u57fa\u7840\u77e5\u8bc6\u4e0e\u5176\u91cd\u8981\u6027<br \/>\nDNS\u662f\u4e00\u4e2a\u7cfb\u7edf\uff0c\u5176\u4efb\u52a1\u662f\u5c06\u5bb9\u6613\u88ab\u4eba\u7406\u89e3\u7684\u57df\u540d\u8f6c\u6362\u6210\u8ba1\u7b97\u673a\u53ef\u4ee5\u7406\u89e3\u7684IP\u5730\u5740\u3002\u8003\u8651\u5230Kubernetes\u4e2d\u8d44\u6e90\u7684\u52a8\u6001\u5bff\u547d\u548cIP\u7684\u53d8\u52a8\uff0c\u52a8\u6001\u89e3\u6790DNS\u53d8\u5f97\u975e\u5e38\u91cd\u8981\u3002<\/p>\n<h2>2. Kubernetes\u7684DNS\u67b6\u6784<\/h2>\n<p>\u5728Kubernetes\u96c6\u7fa4\u4e2d\uff0c\u547d\u540d\u89e3\u6790\u4f7f\u7528\u4e86\u4e00\u4e2a\u540d\u4e3aCoreDNS\u7684\u9ad8\u5ea6\u53ef\u5b9a\u5236\u7684DNS\u670d\u52a1\u5668\u3002CoreDNS\u4e0eKubernetes\u7684API\u670d\u52a1\u5668\u8fdb\u884c\u901a\u4fe1\uff0c\u5e76\u83b7\u53d6Service\u548cPod\u7684\u4fe1\u606f\u3002<\/p>\n<p>\u96c6\u7fa4\u5185\u7684\u547d\u540d\u7a7a\u95f4\u4e0e\u670d\u52a1\u4e4b\u95f4\u7684\u5173\u7cfb<br \/>\n\u547d\u540d\u7a7a\u95f4\u662f\u7528\u4e8e\u5728Kubernetes\u8d44\u6e90\u4e2d\u8fdb\u884c\u903b\u8f91\u5206\u5272\u7684\u673a\u5236\u3002\u670d\u52a1\u5728\u8fd9\u4e2a\u547d\u540d\u7a7a\u95f4\u5185\u8fd0\u884c\uff0c\u5e76\u4e14\u4f5c\u4e3a\u8bbf\u95ee\u540c\u4e00\u547d\u540d\u7a7a\u95f4\u5185Pod\u7684\u5165\u53e3\u70b9\u3002<\/p>\n<h2>3. DNS\u89e3\u6790\u6d41\u7a0b\u7684\u6b65\u9aa4.<\/h2>\n<p>\u5f53Pod\u8bd5\u56fe\u8bbf\u95ee\u540d\u4e3a&#8221;my-service.my-namespace.svc.cluster.local&#8221;\u7684\u670d\u52a1\u65f6\uff0c\u9996\u5148\u4f1a\u5411\u8be5Pod\u7684\/etc\/resolv.conf\u6587\u4ef6\u4e2d\u7684DNS\u670d\u52a1\u5668\uff08\u901a\u5e38\u662fCoreDNS\u7684IP\uff09\u53d1\u51fa\u67e5\u8be2\u8bf7\u6c42\u3002<\/p>\n<p>\u5411CoreDNS\u7684\u67e5\u8be2<br \/>\n\u5f53CoreDNS\u63a5\u6536\u5230\u7c7b\u4f3c\u7684\u8bf7\u6c42\u65f6\uff0c\u5b83\u4f1a\u4eceKubernetes API\u670d\u52a1\u5668\u4e2d\u83b7\u53d6\u4fe1\u606f\uff0c\u5e76\u8fd4\u56de\u9002\u5f53\u7684Service\u7684ClusterIP\uff0c\u5982\u679c\u662fHeadless Service\uff0c\u5219\u8fd4\u56de\u76f8\u5173Pod\u7684IP\u3002<\/p>\n<p>\u670d\u52a1\u4e0e\u7ec8\u7aef\u8282\u70b9\u7684\u5173\u7cfb<br \/>\n\u5982\u679c\u4e0e\u670d\u52a1\u76f8\u5173\u7684Pod\u6709\u591a\u4e2a\uff0c\u5219\u8bf7\u6c42\u5c06\u901a\u8fc7\u79f0\u4e3a\u7ec8\u7aef\u8282\u70b9\u7684\u8d44\u6e90\u8def\u7531\u5230\u9002\u5f53\u7684Pod\u3002\u8fd9\u6837\u4e00\u6765\uff0c\u5c31\u53ef\u4ee5\u5b9e\u73b0\u5728\u6dfb\u52a0\u6216\u5220\u9664Pod\u65f6\u7684\u52a8\u6001\u8def\u7531\u3002<\/p>\n<p>\u5f53\u540d\u79f0\u89e3\u6790\u5b8c\u6210\u5e76\u786e\u5b9a\u4e86\u76ee\u6807IP\u540e\uff0c\u8bf7\u6c42\u5c06\u88ab\u8def\u7531\u5230\u8be5IP\uff0c\u5e76\u8fdb\u884c\u901a\u4fe1\u3002<\/p>\n<h2>\u5b9e\u4f8b\uff1a\u4f7f\u7528Service\u548cStatefulSet<\/h2>\n<p>\u4ee3\u7801\u793a\u4f8b\u53ca\u5176\u8bf4\u660e<br \/>\n\u5728\u4e0a\u8ff0\u7684YAML\u5b9a\u4e49\u4e2d\uff0c\u5b9a\u4e49\u4e86nginx\u7684StatefulSet\u4ee5\u53ca\u76f8\u5173\u7684\u65e0\u5934\u670d\u52a1\u3002\u901a\u8fc7\u8fd9\u4e2a\u914d\u7f6e\uff0c\u6bcf\u4e2anginx Pod\u90fd\u5177\u6709\u81ea\u5df1\u7684\u5b50\u57df\u540d\uff0c\u5e76\u4e14\u53ef\u4ee5\u76f4\u63a5\u4ece\u5176\u4ed6Pod\u8bbf\u95ee\u3002<\/p>\n<p>\u8a2d\u5b9a\u306eYAML\u306e\u7d39\u4ecb<br \/>\nkind: Service<br \/>\nmetadata:<br \/>\nname: my-nginx-svc<br \/>\nlabels:<br \/>\napp: nginx<br \/>\nspec:<br \/>\ntype: ClusterIP<br \/>\nclusterIP: None<br \/>\nports:<br \/>\n&#8211; port: 8080<br \/>\ntargetPort: 80<br \/>\nselector:<br \/>\napp: nginx<br \/>\n&#8212;<br \/>\napiVersion: apps\/v1<br \/>\nkind: StatefulSet<br \/>\nmetadata:<br \/>\nname: my-nginx<br \/>\nlabels:<br \/>\napp: nginx<br \/>\nspec:<br \/>\nserviceName: my-nginx-svc<br \/>\nreplicas: 3<br \/>\nselector:<br \/>\nmatchLabels:<br \/>\napp: nginx<br \/>\ntemplate:<br \/>\nmetadata:<br \/>\nlabels:<br \/>\napp: nginx<br \/>\nspec:<br \/>\ncontainers:<br \/>\n&#8211; name: nginx<br \/>\nimage: nginx:latest<\/p>\n<p>\u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u306e\u540d\u524d\u89e3\u6c7a\u306e\u78ba\u8a8d<br \/>\nkubectl exec [POD_NAME] &#8212; nslookup my-nginx-svc.default.svc.cluster.local<\/p>\n<p>\u4f7f\u7528dig\u547d\u4ee4\u8fdb\u884c\u5b9e\u9645\u540d\u79f0\u89e3\u6790\u9a8c\u8bc1<br \/>\n\u901a\u8fc7\u5b9e\u9645\u4f7f\u7528dig\u547d\u4ee4\uff0c\u786e\u8ba4\u5728Kubernetes\u5185\u90e8\u8fdb\u884c\u540d\u79f0\u89e3\u6790\u7684\u65b9\u6cd5\u3002dig\u547d\u4ee4\u7528\u4e8e\u8fdb\u884cDNS\u67e5\u8be2\u5e76\u663e\u793a\u5176\u54cd\u5e94\u7ed3\u679c\u3002\u901a\u8fc7\u4f7f\u7528\u8be5\u547d\u4ee4\uff0c\u6211\u4eec\u53ef\u4ee5\u76f4\u89c2\u5730\u7406\u89e3Kubernetes\u5185\u90e8\u7684\u540d\u79f0\u89e3\u6790\u6d41\u7a0b\u662f\u5982\u4f55\u5de5\u4f5c\u7684\u3002<\/p>\n<h2>5. \u603b\u7ed3\u4e0e\u53cd\u601d<\/h2>\n<p>DNS\u540d\u89e3\u6790\u6d41\u7a0b\u7684\u91cd\u8981\u6027\u53ca\u5176\u6548\u679c\u5728Kubernetes\u52a8\u6001\u73af\u5883\u4e0b\uff0c\u670d\u52a1\u548cPod\u7684IP\u5730\u5740\u53ef\u80fd\u9891\u7e41\u53d8\u52a8\u3002\u901a\u8fc7\u62e5\u6709\u5feb\u901f\u54cd\u5e94\u8fd9\u79cd\u53d8\u52a8\u5e76\u786e\u4fdd\u53ef\u9760\u7684\u540d\u79f0\u89e3\u6790\u673a\u5236\uff0c\u53ef\u4ee5\u4fdd\u6301\u5e94\u7528\u7a0b\u5e8f\u4e4b\u95f4\u7684\u901a\u4fe1\u987a\u7545\u3002<\/p>\n<p>\u4f20\u7edf\u6765\u8bf4\uff0c\u624b\u52a8\u7ba1\u7406IP\u548c\u7ec8\u7aef\u70b9\u662f\u4e00\u9879\u7e41\u7410\u7684\u5de5\u4f5c\uff0c\u4e5f\u53ef\u80fd\u5bfc\u81f4\u9519\u8bef\u3002\u7136\u800c\uff0cKubernetes\u7684\u81ea\u52a8\u5316DNS\u89e3\u6790\u673a\u5236\u5927\u5927\u51cf\u5c11\u4e86\u8fd9\u79cd\u9ebb\u70e6\u548c\u9519\u8bef\u7684\u98ce\u9669\u3002\u8fd9\u53ef\u4ee5\u8bf4\u662fKubernetes\u5f3a\u5927\u529f\u80fd\u4e4b\u4e00\u3002<\/p>\n<p>\u5e0c\u671b\u901a\u8fc7\u6df1\u5165\u7406\u89e3Kubernetes\u7684\u8fd9\u9879\u529f\u80fd\uff0c\u80fd\u591f\u66f4\u6709\u6548\u5730\u8fd0\u8425\u5e94\u7528\u7a0b\u5e8f\u5e76\u89e3\u51b3\u95ee\u9898\u3002\u5e0c\u671b\u901a\u8fc7\u672c\u6587\uff0c\u80fd\u591f\u52a0\u6df1\u5bf9\u5176\u673a\u5236\u548c\u4f18\u52bf\u7684\u7406\u89e3\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5173\u4e8ek8s\u4e2dDNS\u540d\u79f0\u89e3\u6790\u6d41\u7a0b 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href=\"https:\/\/www.silicloud.com\/zh\/blog\/\u5173\u4e8ek8s\u4e2ddns\u540d\u79f0\u89e3\u6790\u6d41\u7a0b\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u5173\u4e8ek8s\u4e2dDNS\u540d\u79f0\u89e3\u6790\u6d41\u7a0b\" \/>\n<meta property=\"og:description\" content=\"\u5173\u4e8ek8s\u4e2dDNS\u540d\u79f0\u89e3\u6790\u6d41\u7a0b \u9996\u5148 Kubernetes\u662f\u4e00\u4e2a\u5f00\u6e90\u7684\u7f16\u6392\u7cfb\u7edf\uff0c\u7528\u4e8e\u96c6\u4e2d\u7ba1\u7406\u548c\u64cd\u4f5c\u5bb9\u5668\u5316\u7684\u5e94\u7528 [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/\u5173\u4e8ek8s\u4e2ddns\u540d\u79f0\u89e3\u6790\u6d41\u7a0b\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2023-08-24T02:04:21+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-04-28T15:01:51+00:00\" \/>\n<meta name=\"author\" content=\"\u96c5, \u609f\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u96c5, \u609f\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e5%85%b3%e4%ba%8ek8s%e4%b8%addns%e5%90%8d%e7%a7%b0%e8%a7%a3%e6%9e%90%e6%b5%81%e7%a8%8b\/\",\"url\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e5%85%b3%e4%ba%8ek8s%e4%b8%addns%e5%90%8d%e7%a7%b0%e8%a7%a3%e6%9e%90%e6%b5%81%e7%a8%8b\/\",\"name\":\"\u5173\u4e8ek8s\u4e2dDNS\u540d\u79f0\u89e3\u6790\u6d41\u7a0b - Blog - Silicon 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