{"id":1544,"date":"2020-06-08T21:07:23","date_gmt":"2020-06-08T13:07:23","guid":{"rendered":"http:\/\/39.97.231.10\/?p=1544"},"modified":"2020-06-08T21:07:23","modified_gmt":"2020-06-08T13:07:23","slug":"kubernetes%e7%bb%84%e4%bb%b6%e4%bb%8b%e7%bb%8d","status":"publish","type":"post","link":"http:\/\/www.weijing.co\/?p=1544","title":{"rendered":"Kubernetes \u7ec4\u4ef6\u4ecb\u7ecd"},"content":{"rendered":"<p>Kubernetes\u96c6\u7fa4\u6240\u9700\u7684\u5404\u79cd\u4e8c\u8fdb\u5236\u7ec4\u4ef6\u4ecb\u7ecd\u3002<\/p>\n<h2 id=\\\"master-components\\\"><span id=\\\"Master\\\">Master \u7ec4\u4ef6<\/span><\/h2>\n<p>Master\u7ec4\u4ef6\u63d0\u4f9b\u96c6\u7fa4\u7684\u7ba1\u7406\u63a7\u5236\u4e2d\u5fc3\u3002<br \/>\nMaster\u7ec4\u4ef6\u53ef\u4ee5\u5728\u96c6\u7fa4\u4e2d\u4efb\u4f55\u8282\u70b9\u4e0a\u8fd0\u884c\u3002\u4f46\u662f\u4e3a\u4e86\u7b80\u5355\u8d77\u89c1\uff0c\u901a\u5e38\u5728\u4e00\u53f0VM\/\u673a\u5668\u4e0a\u542f\u52a8\u6240\u6709Master\u7ec4\u4ef6\uff0c\u5e76\u4e14\u4e0d\u4f1a\u5728\u6b64VM\/\u673a\u5668\u4e0a\u8fd0\u884c\u7528\u6237\u5bb9\u5668\u3002\u8bf7\u53c2\u8003\u00a0\u6784\u5efa\u9ad8\u53ef\u7528\u7fa4\u96c6\u4ee5\u6765\u6784\u5efamulti-master-VM\u3002<\/p>\n<h3 id=\\\"kube-apiserver\\\"><span id=\\\"kube-apiserver\\\">kube-apiserver<\/span><\/h3>\n<p><a href=\\\"https:\/\/kubernetes.io\/docs\/admin\/kube-apiserver\\\" target=\\\"_blank\\\" rel=\\\"nofollow noopener noreferrer\\\">kube-apiserver<\/a>\u7528\u4e8e\u66b4\u9732Kubernetes API\u3002\u4efb\u4f55\u7684\u8d44\u6e90\u8bf7\u6c42\/\u8c03\u7528\u64cd\u4f5c\u90fd\u662f\u901a\u8fc7kube-apiserver\u63d0\u4f9b\u7684\u63a5\u53e3\u8fdb\u884c\u3002\u8bf7\u53c2\u9605<a href=\\\"https:\/\/kubernetes.io\/docs\/admin\/high-availability\\\" target=\\\"_blank\\\" rel=\\\"nofollow noopener noreferrer\\\">\u6784\u5efa\u9ad8\u53ef\u7528\u7fa4\u96c6<\/a>\u3002<\/p>\n<h3 id=\\\"etcd\\\"><span id=\\\"ETCD\\\">ETCD<\/span><\/h3>\n<p><a href=\\\"https:\/\/kubernetes.io\/docs\/admin\/etcd\\\" target=\\\"_blank\\\" rel=\\\"nofollow noopener noreferrer\\\">etcd<\/a>\u662fKubernetes\u63d0\u4f9b\u9ed8\u8ba4\u7684\u5b58\u50a8\u7cfb\u7edf\uff0c\u4fdd\u5b58\u6240\u6709\u96c6\u7fa4\u6570\u636e\uff0c\u4f7f\u7528\u65f6\u9700\u8981\u4e3aetcd\u6570\u636e\u63d0\u4f9b\u5907\u4efd\u8ba1\u5212\u3002<\/p>\n<h3 id=\\\"kube-controller-manager\\\"><span id=\\\"kube-controller-manager\\\">kube-controller-manager<\/span><\/h3>\n<p><a href=\\\"https:\/\/kubernetes.io\/docs\/admin\/kube-controller-manager\\\" target=\\\"_blank\\\" rel=\\\"nofollow noopener noreferrer\\\">kube-controller-manager<\/a>\u8fd0\u884c\u7ba1\u7406\u63a7\u5236\u5668\uff0c\u5b83\u4eec\u662f\u96c6\u7fa4\u4e2d\u5904\u7406\u5e38\u89c4\u4efb\u52a1\u7684\u540e\u53f0\u7ebf\u7a0b\u3002\u903b\u8f91\u4e0a\uff0c\u6bcf\u4e2a\u63a7\u5236\u5668\u662f\u4e00\u4e2a\u5355\u72ec\u7684\u8fdb\u7a0b\uff0c\u4f46\u4e3a\u4e86\u964d\u4f4e\u590d\u6742\u6027\uff0c\u5b83\u4eec\u90fd\u88ab\u7f16\u8bd1\u6210\u5355\u4e2a\u4e8c\u8fdb\u5236\u6587\u4ef6\uff0c\u5e76\u5728\u5355\u4e2a\u8fdb\u7a0b\u4e2d\u8fd0\u884c\u3002<br \/>\n\u8fd9\u4e9b\u63a7\u5236\u5668\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><a href=\\\"http:\/\/docs.kubernetes.org.cn\/304.html\\\" target=\\\"_blank\\\" rel=\\\"noopener noreferrer\\\">\u8282\u70b9\uff08Node\uff09\u63a7\u5236\u5668<\/a>\u3002<\/li>\n<li>\u526f\u672c\uff08Replication\uff09\u63a7\u5236\u5668\uff1a\u8d1f\u8d23\u7ef4\u62a4\u7cfb\u7edf\u4e2d\u6bcf\u4e2a\u526f\u672c\u4e2d\u7684pod\u3002<\/li>\n<li>\u7aef\u70b9\uff08Endpoints\uff09\u63a7\u5236\u5668\uff1a\u586b\u5145Endpoints\u5bf9\u8c61\uff08\u5373\u8fde\u63a5Services\uff06Pods\uff09\u3002<\/li>\n<li><a href=\\\"http:\/\/docs.kubernetes.org.cn\/84.html\\\" target=\\\"_blank\\\" rel=\\\"noopener noreferrer\\\">Service Account<\/a>\u548cToken\u63a7\u5236\u5668\uff1a\u4e3a\u65b0\u7684<a href=\\\"http:\/\/docs.kubernetes.org.cn\/242.html\\\" target=\\\"_blank\\\" rel=\\\"noopener noreferrer\\\">Namespace<\/a>\u00a0\u521b\u5efa\u9ed8\u8ba4\u5e10\u6237\u8bbf\u95eeAPI Token\u3002<\/li>\n<\/ul>\n<h3 id=\\\"cloud-controller-manager\\\"><span id=\\\"cloud-controller-manager\\\">cloud-controller-manager<\/span><\/h3>\n<p>\u4e91\u63a7\u5236\u5668\u7ba1\u7406\u5668\u8d1f\u8d23\u4e0e\u5e95\u5c42\u4e91\u63d0\u4f9b\u5546\u7684\u5e73\u53f0\u4ea4\u4e92\u3002\u4e91\u63a7\u5236\u5668\u7ba1\u7406\u5668\u662fKubernetes\u7248\u672c1.6\u4e2d\u5f15\u5165\u7684\uff0c\u76ee\u524d\u8fd8\u662fAlpha\u7684\u529f\u80fd\u3002<br \/>\n\u4e91\u63a7\u5236\u5668\u7ba1\u7406\u5668\u4ec5\u8fd0\u884c\u4e91\u63d0\u4f9b\u5546\u7279\u5b9a\u7684\uff08controller loops\uff09\u63a7\u5236\u5668\u5faa\u73af\u3002\u53ef\u4ee5\u901a\u8fc7\u5c06<code class=\\\"highlighter-rouge\\\">--cloud-provider<\/code>\u00a0flag\u8bbe\u7f6e\u4e3aexternal\u542f\u52a8kube-controller-manager \uff0c\u6765\u7981\u7528\u63a7\u5236\u5668\u5faa\u73af\u3002<\/p>\n<p id=\\\"cloud-controller-manager\\\">cloud-controller-manager \u5177\u4f53\u529f\u80fd\uff1a<\/p>\n<ul>\n<li>\u8282\u70b9\uff08Node\uff09\u63a7\u5236\u5668<\/li>\n<li>\u8def\u7531\uff08Route\uff09\u63a7\u5236\u5668<\/li>\n<li>Service\u63a7\u5236\u5668<\/li>\n<li>\u5377\uff08Volume\uff09\u63a7\u5236\u5668<\/li>\n<\/ul>\n<h3 id=\\\"kube-scheduler\\\"><span id=\\\"kube-scheduler\\\">kube-scheduler<\/span><\/h3>\n<p>kube-scheduler\u00a0\u76d1\u89c6\u65b0\u521b\u5efa\u6ca1\u6709\u5206\u914d\u5230<a href=\\\"http:\/\/docs.kubernetes.org.cn\/304.html\\\" target=\\\"_blank\\\" rel=\\\"noopener noreferrer\\\">Node<\/a>\u7684<a href=\\\"http:\/\/docs.kubernetes.org.cn\/312.html\\\" target=\\\"_blank\\\" rel=\\\"noopener noreferrer\\\">Pod<\/a>\uff0c\u4e3aPod\u9009\u62e9\u4e00\u4e2aNode\u3002<\/p>\n<h3 id=\\\"addons\\\"><span id=\\\"_addons\\\">\u63d2\u4ef6 addons<\/span><\/h3>\n<p>\u63d2\u4ef6\uff08addon\uff09\u662f\u5b9e\u73b0\u96c6\u7fa4pod\u548cServices\u529f\u80fd\u7684\u00a0\u3002Pod\u7531<a href=\\\"http:\/\/docs.kubernetes.org.cn\/317.html\\\" target=\\\"_blank\\\" rel=\\\"noopener noreferrer\\\">Deployments<\/a>\uff0cReplicationController\u7b49\u8fdb\u884c\u7ba1\u7406\u3002Namespace \u63d2\u4ef6\u5bf9\u8c61\u662f\u5728kube-system Namespace\u4e2d\u521b\u5efa\u3002<\/p>\n<h4 id=\\\"dns\\\"><span id=\\\"DNS\\\">DNS<\/span><\/h4>\n<p>\u867d\u7136\u4e0d\u4e25\u683c\u8981\u6c42\u4f7f\u7528\u63d2\u4ef6\uff0c\u4f46Kubernetes\u96c6\u7fa4\u90fd\u5e94\u8be5\u5177\u6709\u96c6\u7fa4 DNS\u3002<br \/>\n\u7fa4\u96c6 DNS\u662f\u4e00\u4e2aDNS\u670d\u52a1\u5668\uff0c\u80fd\u591f\u4e3a Kubernetes services\u63d0\u4f9b DNS\u8bb0\u5f55\u3002<br \/>\n\u7531Kubernetes\u542f\u52a8\u7684\u5bb9\u5668\u81ea\u52a8\u5c06\u8fd9\u4e2aDNS\u670d\u52a1\u5668\u5305\u542b\u5728\u4ed6\u4eec\u7684DNS searches\u4e2d\u3002<\/p>\n<h4 id=\\\"user-interface\\\"><span id=\\\"i\\\">\u7528\u6237\u754c\u9762<\/span><\/h4>\n<p>kube-ui\u63d0\u4f9b\u96c6\u7fa4\u72b6\u6001\u57fa\u7840\u4fe1\u606f\u67e5\u770b\u3002\u66f4\u591a\u8be6\u7ec6\u4fe1\u606f\uff0c\u8bf7\u53c2\u9605<a href=\\\"https:\/\/kubernetes.io\/docs\/tasks\/access-kubernetes-api\/http-proxy-access-api\/\\\" target=\\\"_blank\\\" rel=\\\"nofollow noopener noreferrer\\\">\u4f7f\u7528HTTP\u4ee3\u7406\u8bbf\u95eeKubernetes API<\/a><\/p>\n<h4 id=\\\"container-resource-monitoring\\\"><span id=\\\"i-2\\\">\u5bb9\u5668\u8d44\u6e90\u76d1\u6d4b<\/span><\/h4>\n<p><a href=\\\"https:\/\/kubernetes.io\/docs\/user-guide\/monitoring\\\" target=\\\"_blank\\\" rel=\\\"nofollow noopener noreferrer\\\">\u5bb9\u5668\u8d44\u6e90\u76d1\u63a7<\/a>\u63d0\u4f9b\u4e00\u4e2aUI\u6d4f\u89c8\u76d1\u63a7\u6570\u636e\u3002<\/p>\n<h4 id=\\\"cluster-level-logging\\\"><span id=\\\"Cluster-level_Logging\\\">Cluster-level Logging<\/span><\/h4>\n<p><a href=\\\"https:\/\/kubernetes.io\/docs\/user-guide\/logging\/overview\\\" target=\\\"_blank\\\" rel=\\\"nofollow noopener noreferrer\\\">Cluster-level logging<\/a>\uff0c\u8d1f\u8d23\u4fdd\u5b58\u5bb9\u5668\u65e5\u5fd7\uff0c\u641c\u7d22\/\u67e5\u770b\u65e5\u5fd7\u3002<\/p>\n<h2><span id=\\\"Node\\\">\u8282\u70b9\uff08Node\uff09\u7ec4\u4ef6<\/span><\/h2>\n<p>\u8282\u70b9\u7ec4\u4ef6\u8fd0\u884c\u5728<a href=\\\"http:\/\/docs.kubernetes.org.cn\/304.html\\\" target=\\\"_blank\\\" rel=\\\"noopener noreferrer\\\">Node<\/a>\uff0c\u63d0\u4f9bKubernetes\u8fd0\u884c\u65f6\u73af\u5883\uff0c\u4ee5\u53ca\u7ef4\u62a4Pod\u3002<\/p>\n<h3 id=\\\"kubelet\\\"><span id=\\\"kubelet\\\">kubelet<\/span><\/h3>\n<p><a href=\\\"https:\/\/kubernetes.io\/docs\/admin\/kubelet\\\" target=\\\"_blank\\\" rel=\\\"nofollow noopener noreferrer\\\">kubelet<\/a>\u662f\u4e3b\u8981\u7684\u8282\u70b9\u4ee3\u7406\uff0c\u5b83\u4f1a\u76d1\u89c6\u5df2\u5206\u914d\u7ed9\u8282\u70b9\u7684pod\uff0c\u5177\u4f53\u529f\u80fd\uff1a<\/p>\n<ul>\n<li>\u5b89\u88c5Pod\u6240\u9700\u7684volume\u3002<\/li>\n<li>\u4e0b\u8f7dPod\u7684Secrets\u3002<\/li>\n<li>Pod\u4e2d\u8fd0\u884c\u7684 docker\uff08\u6216experimentally\uff0crkt\uff09\u5bb9\u5668\u3002<\/li>\n<li>\u5b9a\u671f\u6267\u884c\u5bb9\u5668\u5065\u5eb7\u68c0\u67e5\u3002<\/li>\n<li>Reports the status of the pod back to the rest of the system, by creating a\u00a0<em>mirror pod<\/em>\u00a0if necessary.<\/li>\n<li>Reports the status of the node back to the rest of the system.<\/li>\n<\/ul>\n<h3 id=\\\"kube-proxy\\\"><span id=\\\"kube-proxy\\\">kube-proxy<\/span><\/h3>\n<p><a href=\\\"https:\/\/kubernetes.io\/docs\/admin\/kube-proxy\\\" target=\\\"_blank\\\" rel=\\\"nofollow noopener noreferrer\\\">kube-proxy<\/a>\u901a\u8fc7\u5728\u4e3b\u673a\u4e0a\u7ef4\u62a4\u7f51\u7edc\u89c4\u5219\u5e76\u6267\u884c\u8fde\u63a5\u8f6c\u53d1\u6765\u5b9e\u73b0Kubernetes\u670d\u52a1\u62bd\u8c61\u3002<\/p>\n<h3 id=\\\"docker\\\"><span id=\\\"docker\\\">docker<\/span><\/h3>\n<p>docker\u7528\u4e8e\u8fd0\u884c\u5bb9\u5668\u3002<\/p>\n<h3 id=\\\"rkt\\\"><span id=\\\"RKT\\\">RKT<\/span><\/h3>\n<p>rkt\u8fd0\u884c\u5bb9\u5668\uff0c\u4f5c\u4e3adocker\u5de5\u5177\u7684\u66ff\u4ee3\u65b9\u6848\u3002<\/p>\n<h3 id=\\\"supervisord\\\"><span id=\\\"supervisord\\\">supervisord<\/span><\/h3>\n<p>supervisord\u662f\u4e00\u4e2a\u8f7b\u91cf\u7ea7\u7684\u76d1\u63a7\u7cfb\u7edf\uff0c\u7528\u4e8e\u4fdd\u969ckubelet\u548cdocker\u8fd0\u884c\u3002<\/p>\n<h3 id=\\\"fluentd\\\"><span id=\\\"fluentd\\\">fluentd<\/span><\/h3>\n<p>fluentd\u662f\u4e00\u4e2a\u5b88\u62a4\u8fdb\u7a0b\uff0c\u53ef\u63d0\u4f9b<a href=\\\"https:\/\/kubernetes.io\/docs\/concepts\/overview\/components\/#cluster-level-logging\\\" target=\\\"_blank\\\" rel=\\\"nofollow noopener noreferrer\\\">cluster-level logging<\/a>.\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Kubernetes\u96c6\u7fa4\u6240\u9700\u7684\u5404\u79cd\u4e8c\u8fdb\u5236\u7ec4\u4ef6\u4ecb\u7ecd\u3002 Master \u7ec4\u4ef6 Master\u7ec4\u4ef6\u63d0\u4f9b\u96c6\u7fa4\u7684\u7ba1\u7406\u63a7\u5236\u4e2d\u5fc3 &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"http:\/\/www.weijing.co\/?p=1544\"> <span class=\"screen-reader-text\">Kubernetes \u7ec4\u4ef6\u4ecb\u7ecd<\/span> \u67e5\u770b\u5168\u6587 &raquo;<\/a><\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"default","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":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":""},"categories":[104,123],"tags":[],"uagb_featured_image_src":{"full":false,"thumbnail":false,"medium":false,"medium_large":false,"large":false,"1536x1536":false,"2048x2048":false,"mailpoet_newsletter_max":false,"woocommerce_thumbnail":false,"woocommerce_single":false,"woocommerce_gallery_thumbnail":false,"shop_catalog":false,"shop_single":false,"shop_thumbnail":false},"uagb_author_info":{"display_name":"weijing","author_link":"http:\/\/www.weijing.co\/?author=4"},"uagb_comment_info":0,"uagb_excerpt":"Kubernetes\u96c6\u7fa4\u6240\u9700\u7684\u5404\u79cd\u4e8c\u8fdb\u5236\u7ec4\u4ef6\u4ecb\u7ecd\u3002 Master \u7ec4\u4ef6 Master\u7ec4\u4ef6\u63d0\u4f9b\u96c6\u7fa4\u7684\u7ba1\u7406\u63a7\u5236\u4e2d\u5fc3&hellip;","_links":{"self":[{"href":"http:\/\/www.weijing.co\/index.php?rest_route=\/wp\/v2\/posts\/1544"}],"collection":[{"href":"http:\/\/www.weijing.co\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.weijing.co\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.weijing.co\/index.php?rest_route=\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"http:\/\/www.weijing.co\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1544"}],"version-history":[{"count":0,"href":"http:\/\/www.weijing.co\/index.php?rest_route=\/wp\/v2\/posts\/1544\/revisions"}],"wp:attachment":[{"href":"http:\/\/www.weijing.co\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1544"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.weijing.co\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1544"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.weijing.co\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1544"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}