https:\/\/cloud.tencent.com\/developer\/article\/1804653<\/a><\/p>\n\n\n\npod\u7f51\u7edc\u8bbe\u7f6e\u4e2d \u53ef\u4ee5\u8bbe\u7f6eDNS\u4f7f\u7528\u7b56\u7565\u5982\u4e0b<\/p>\n\n\n\n
K8s DNS \u7b56\u7565<\/h3>\n\n\n\n
Kubernetes \u4e2d Pod \u7684 DNS \u7b56\u7565\u6709\u56db\u79cd\u7c7b\u578b\u3002<\/p>\n\n\n\n
1.Default\uff1aPod \u7ee7\u627f\u6240\u5728\u4e3b\u673a\u4e0a\u7684 DNS \u914d\u7f6e\uff1b<\/p>\n\n\n\n
2.ClusterFirst\uff1aK8s \u7684\u9ed8\u8ba4\u8bbe\u7f6e\uff1b\u5148\u5728 K8s \u96c6\u7fa4\u914d\u7f6e\u7684 coreDNS \u4e2d\u67e5\u8be2\uff0c\u67e5\u4e0d\u5230\u7684\u518d\u53bb\u7ee7\u627f\u81ea\u4e3b\u673a\u7684\u4e0a\u6e38 nameserver \u4e2d\u67e5\u8be2\uff1b<\/p>\n\n\n\n
3.ClusterFirstWithHostNet\uff1a\u5bf9\u4e8e\u7f51\u7edc\u914d\u7f6e\u4e3a hostNetwork \u7684 Pod \u800c\u8a00\uff0c\u5176 DNS \u914d\u7f6e\u89c4\u5219\u4e0e ClusterFirst \u4e00\u81f4\uff1b<\/p>\n\n\n\n
4.None\uff1a\u5ffd\u7565 K8s \u73af\u5883\u7684 DNS \u914d\u7f6e\uff0c\u53ea\u8ba4 Pod \u7684 dnsConfig \u8bbe\u7f6e\u3002<\/p>\n\n\n\n
POD\u4e2d\u6392\u67e5DNS\u95ee\u9898<\/strong><\/p>\n\n\n\n\u67e5\u770bSSL\u7248\u672c \u4ee5\u53ca\u8bc1\u4e66\u60c5\u51b5\ncurl -v https:\/\/xxxx.com\n\n\u9a8c\u8bc1\u662f\u5426\u53ef\u4ee5\u4e0b\u8f7d\u548c\u89e3\u6790IP\u662f\u5426\u6b63\u786e\nwget https:\/\/xxxx.com\n\n\u67e5\u770bcat \/etc\/resolv.conf \u5185\u5bb9dns\u670d\u52a1\u5668\u662f\u5426\u6b63\u786e\n\u8bc1\u4e66 \/etc\/ssl\/certs \u5b9e\u9645\u4e0d\u5f71\u54cd\n\n\u67e5\u770b\u96c6\u7fa4dns\u5bb9\u5668\u670d\u52a1\uff0c\u901a\u8fc7\u8be5\u5bb9\u5668\u5bf9\u5e94\u7684ConfigMap\u6587\u4ef6rke2-coredns-rke2-coredns\uff0c\u8bbe\u7f6e\u6307\u5b9a\u57df\u540dIP\u6216\u8005DNS\u670d\u52a1\u5668\uff1f\nkubectl -n kube-system get svc |grep dns<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"\u5bb9\u5668\u9ed8\u8ba4\u4f7f\u7528\u96c6\u7fa4dns\u670d\u52a1\uff08\u8ddf\u7269\u7406\u4e3b\u673a\u4e0d […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"_links":{"self":[{"href":"http:\/\/www.bigqq.com\/index.php?rest_route=\/wp\/v2\/posts\/325"}],"collection":[{"href":"http:\/\/www.bigqq.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.bigqq.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.bigqq.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.bigqq.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=325"}],"version-history":[{"count":3,"href":"http:\/\/www.bigqq.com\/index.php?rest_route=\/wp\/v2\/posts\/325\/revisions"}],"predecessor-version":[{"id":341,"href":"http:\/\/www.bigqq.com\/index.php?rest_route=\/wp\/v2\/posts\/325\/revisions\/341"}],"wp:attachment":[{"href":"http:\/\/www.bigqq.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=325"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.bigqq.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=325"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.bigqq.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=325"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}