{"id":1546,"date":"2020-06-08T21:11:58","date_gmt":"2020-06-08T13:11:58","guid":{"rendered":"http:\/\/39.97.231.10\/?p=1546"},"modified":"2020-06-08T21:11:58","modified_gmt":"2020-06-08T13:11:58","slug":"kubernetes%e6%9e%b6%e6%9e%84%e8%ae%be%e8%ae%a1","status":"publish","type":"post","link":"http:\/\/www.weijing.co\/?p=1546","title":{"rendered":"Kubernetes\u8bbe\u8ba1\u67b6\u6784"},"content":{"rendered":"<header class=\\\"article-header\\\">\n<h1 class=\\\"article-title\\\"><span style=\\\"font-size: 1rem; color: #000000;\\\">Kubernetes\u96c6\u7fa4\u5305\u542b\u6709\u8282\u70b9\u4ee3\u7406kubelet\u548cMaster\u7ec4\u4ef6(APIs, scheduler, etc)\uff0c\u4e00\u5207\u90fd\u57fa\u4e8e\u5206\u5e03\u5f0f\u7684\u5b58\u50a8\u7cfb\u7edf\u3002\u4e0b\u9762\u8fd9\u5f20\u56fe\u662fKubernetes\u7684\u67b6\u6784\u56fe\u3002<\/span><\/h1>\n<\/header>\n<article class=\\\"article-content\\\"><img class=\\\"alignnone size-full wp-image-540\\\" src=\\\"https:\/\/img.kubernetes.org.cn\/2016\/10\/20161028141542.jpg\\\" sizes=\\\"(max-width: 893px) 100vw, 893px\\\" srcset=\\\"https:\/\/www.kubernetes.org.cn\/img\/2016\/10\/20161028141542.jpg 893w, https:\/\/www.kubernetes.org.cn\/img\/2016\/10\/20161028141542-300x250.jpg 300w, https:\/\/www.kubernetes.org.cn\/img\/2016\/10\/20161028141542-768x640.jpg 768w\\\" alt=\\\"20161028141542\\\" width=\\\"893\\\" height=\\\"744\\\" data-tag=\\\"bdshare\\\" \/><br \/>\n<a href=\\\"https:\/\/raw.githubusercontent.com\/kubernetes\/kubernetes\/release-1.2\/docs\/design\/architecture.png\\\" target=\\\"_blank\\\" rel=\\\"noopener noreferrer\\\"><strong>\u67e5\u770b\u9ad8\u6e05\u65e0\u7801\u56fe<\/strong><\/a><\/p>\n<h2>Kubernetes\u8282\u70b9<\/h2>\n<p>\u5728\u8fd9\u5f20\u7cfb\u7edf\u67b6\u6784\u56fe\u4e2d\uff0c\u6211\u4eec\u628a\u670d\u52a1\u5206\u4e3a\u8fd0\u884c\u5728\u5de5\u4f5c\u8282\u70b9\u4e0a\u7684\u670d\u52a1\u548c\u7ec4\u6210\u96c6\u7fa4\u7ea7\u522b\u63a7\u5236\u677f\u7684\u670d\u52a1\u3002<br \/>\nKubernetes\u8282\u70b9\u6709\u8fd0\u884c\u5e94\u7528\u5bb9\u5668\u5fc5\u5907\u7684\u670d\u52a1\uff0c\u800c\u8fd9\u4e9b\u90fd\u662f\u53d7Master\u7684\u63a7\u5236\u3002<br \/>\n\u6bcf\u6b21\u4e2a\u8282\u70b9\u4e0a\u5f53\u7136\u90fd\u8981\u8fd0\u884cDocker\u3002Docker\u6765\u8d1f\u8d23\u6240\u6709\u5177\u4f53\u7684\u6620\u50cf\u4e0b\u8f7d\u548c\u5bb9\u5668\u8fd0\u884c\u3002<\/p>\n<p class=\\\"comments-section\\\">Kubernetes\u4e3b\u8981\u7531\u4ee5\u4e0b\u51e0\u4e2a\u6838\u5fc3\u7ec4\u4ef6\u7ec4\u6210\uff1a<\/p>\n<ul>\n<li>etcd\u4fdd\u5b58\u4e86\u6574\u4e2a\u96c6\u7fa4\u7684\u72b6\u6001\uff1b<\/li>\n<li>apiserver\u63d0\u4f9b\u4e86\u8d44\u6e90\u64cd\u4f5c\u7684\u552f\u4e00\u5165\u53e3\uff0c\u5e76\u63d0\u4f9b\u8ba4\u8bc1\u3001\u6388\u6743\u3001\u8bbf\u95ee\u63a7\u5236\u3001API\u6ce8\u518c\u548c\u53d1\u73b0\u7b49\u673a\u5236\uff1b<\/li>\n<li>controller manager\u8d1f\u8d23\u7ef4\u62a4\u96c6\u7fa4\u7684\u72b6\u6001\uff0c\u6bd4\u5982\u6545\u969c\u68c0\u6d4b\u3001\u81ea\u52a8\u6269\u5c55\u3001\u6eda\u52a8\u66f4\u65b0\u7b49\uff1b<\/li>\n<li>scheduler\u8d1f\u8d23\u8d44\u6e90\u7684\u8c03\u5ea6\uff0c\u6309\u7167\u9884\u5b9a\u7684\u8c03\u5ea6\u7b56\u7565\u5c06Pod\u8c03\u5ea6\u5230\u76f8\u5e94\u7684\u673a\u5668\u4e0a\uff1b<\/li>\n<li>kubelet\u8d1f\u8d23\u7ef4\u62a4\u5bb9\u5668\u7684\u751f\u547d\u5468\u671f\uff0c\u540c\u65f6\u4e5f\u8d1f\u8d23Volume\uff08CVI\uff09\u548c\u7f51\u7edc\uff08CNI\uff09\u7684\u7ba1\u7406\uff1b<\/li>\n<li>Container runtime\u8d1f\u8d23\u955c\u50cf\u7ba1\u7406\u4ee5\u53caPod\u548c\u5bb9\u5668\u7684\u771f\u6b63\u8fd0\u884c\uff08CRI\uff09\uff1b<\/li>\n<li>kube-proxy\u8d1f\u8d23\u4e3aService\u63d0\u4f9bcluster\u5185\u90e8\u7684\u670d\u52a1\u53d1\u73b0\u548c\u8d1f\u8f7d\u5747\u8861\uff1b<\/li>\n<\/ul>\n<p class=\\\"comments-section\\\">\u9664\u4e86\u6838\u5fc3\u7ec4\u4ef6\uff0c\u8fd8\u6709\u4e00\u4e9b\u63a8\u8350\u7684Add-ons\uff1a<\/p>\n<ul>\n<li>kube-dns\u8d1f\u8d23\u4e3a\u6574\u4e2a\u96c6\u7fa4\u63d0\u4f9bDNS\u670d\u52a1<\/li>\n<li>Ingress Controller\u4e3a\u670d\u52a1\u63d0\u4f9b\u5916\u7f51\u5165\u53e3<\/li>\n<li>Heapster\u63d0\u4f9b\u8d44\u6e90\u76d1\u63a7<\/li>\n<li>Dashboard\u63d0\u4f9bGUI<\/li>\n<li>Federation\u63d0\u4f9b\u8de8\u53ef\u7528\u533a\u7684\u96c6\u7fa4<\/li>\n<li>Fluentd-elasticsearch\u63d0\u4f9b\u96c6\u7fa4\u65e5\u5fd7\u91c7\u96c6\u3001\u5b58\u50a8\u4e0e\u67e5\u8be2<\/li>\n<\/ul>\n<p><img class=\\\"aligncenter\\\" src=\\\"https:\/\/feisky.gitbooks.io\/kubernetes\/architecture\/images\/14791969222306.png\\\" alt=\\\"\\\" width=\\\"1600\\\" height=\\\"1067\\\" data-tag=\\\"bdshare\\\" \/><br \/>\n<img src=\\\"https:\/\/feisky.gitbooks.io\/kubernetes\/architecture\/images\/14791969311297.png\\\" alt=\\\"\\\" data-tag=\\\"bdshare\\\" \/><\/p>\n<h3 id=\\\"\u5206\u5c42\u67b6\u6784\\\">\u5206\u5c42\u67b6\u6784<\/h3>\n<p class=\\\"comments-section\\\">Kubernetes\u8bbe\u8ba1\u7406\u5ff5\u548c\u529f\u80fd\u5176\u5b9e\u5c31\u662f\u4e00\u4e2a\u7c7b\u4f3cLinux\u7684\u5206\u5c42\u67b6\u6784\uff0c\u5982\u4e0b\u56fe\u6240\u793a<\/p>\n<p><img src=\\\"https:\/\/feisky.gitbooks.io\/kubernetes\/architecture\/images\/14937095836427.jpg\\\" alt=\\\"\\\" data-tag=\\\"bdshare\\\" \/><\/p>\n<ul>\n<li>\u6838\u5fc3\u5c42\uff1aKubernetes\u6700\u6838\u5fc3\u7684\u529f\u80fd\uff0c\u5bf9\u5916\u63d0\u4f9bAPI\u6784\u5efa\u9ad8\u5c42\u7684\u5e94\u7528\uff0c\u5bf9\u5185\u63d0\u4f9b\u63d2\u4ef6\u5f0f\u5e94\u7528\u6267\u884c\u73af\u5883<\/li>\n<li>\u5e94\u7528\u5c42\uff1a\u90e8\u7f72\uff08\u65e0\u72b6\u6001\u5e94\u7528\u3001\u6709\u72b6\u6001\u5e94\u7528\u3001\u6279\u5904\u7406\u4efb\u52a1\u3001\u96c6\u7fa4\u5e94\u7528\u7b49\uff09\u548c\u8def\u7531\uff08\u670d\u52a1\u53d1\u73b0\u3001DNS\u89e3\u6790\u7b49\uff09<\/li>\n<li>\u7ba1\u7406\u5c42\uff1a\u7cfb\u7edf\u5ea6\u91cf\uff08\u5982\u57fa\u7840\u8bbe\u65bd\u3001\u5bb9\u5668\u548c\u7f51\u7edc\u7684\u5ea6\u91cf\uff09\uff0c\u81ea\u52a8\u5316\uff08\u5982\u81ea\u52a8\u6269\u5c55\u3001\u52a8\u6001Provision\u7b49\uff09\u4ee5\u53ca\u7b56\u7565\u7ba1\u7406\uff08RBAC\u3001Quota\u3001PSP\u3001NetworkPolicy\u7b49\uff09<\/li>\n<li>\u63a5\u53e3\u5c42\uff1akubectl\u547d\u4ee4\u884c\u5de5\u5177\u3001\u5ba2\u6237\u7aefSDK\u4ee5\u53ca\u96c6\u7fa4\u8054\u90a6<\/li>\n<li>\u751f\u6001\u7cfb\u7edf\uff1a\u5728\u63a5\u53e3\u5c42\u4e4b\u4e0a\u7684\u5e9e\u5927\u5bb9\u5668\u96c6\u7fa4\u7ba1\u7406\u8c03\u5ea6\u7684\u751f\u6001\u7cfb\u7edf\uff0c\u53ef\u4ee5\u5212\u5206\u4e3a\u4e24\u4e2a\u8303\u7574\n<ul>\n<li>Kubernetes\u5916\u90e8\uff1a\u65e5\u5fd7\u3001\u76d1\u63a7\u3001\u914d\u7f6e\u7ba1\u7406\u3001CI\u3001CD\u3001Workflow\u3001FaaS\u3001OTS\u5e94\u7528\u3001ChatOps\u7b49<\/li>\n<li>Kubernetes\u5185\u90e8\uff1aCRI\u3001CNI\u3001CVI\u3001\u955c\u50cf\u4ed3\u5e93\u3001Cloud Provider\u3001\u96c6\u7fa4\u81ea\u8eab\u7684\u914d\u7f6e\u548c\u7ba1\u7406\u7b49<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2>kubelet<\/h2>\n<p>kubelet\u8d1f\u8d23\u7ba1\u7406<a href=\\\"https:\/\/www.kubernetes.org.cn\/kubernetes-pod\\\" target=\\\"_blank\\\" rel=\\\"nofollow noopener noreferrer\\\">pods<\/a>\u548c\u5b83\u4eec\u4e0a\u9762\u7684\u5bb9\u5668\uff0cimages\u955c\u50cf\u3001volumes\u3001etc\u3002<\/p>\n<h2>kube-proxy<\/h2>\n<p>\u6bcf\u4e00\u4e2a\u8282\u70b9\u4e5f\u8fd0\u884c\u4e00\u4e2a\u7b80\u5355\u7684\u7f51\u7edc\u4ee3\u7406\u548c\u8d1f\u8f7d\u5747\u8861\uff08\u8be6\u89c1<a href=\\\"https:\/\/github.com\/kubernetes\/kubernetes\/wiki\/Services-FAQ\\\" target=\\\"_blank\\\" rel=\\\"nofollow noopener noreferrer\\\">services FAQ<\/a>\u00a0)\uff08PS:\u5b98\u65b9 \u82f1\u6587\uff09\u3002 \u6b63\u5982Kubernetes API\u91cc\u9762\u5b9a\u4e49\u7684\u8fd9\u4e9b\u670d\u52a1\uff08\u8be6\u89c1<a href=\\\"https:\/\/github.com\/kubernetes\/kubernetes\/blob\/release-1.2\/docs\/user-guide\/services.md\\\" target=\\\"_blank\\\" rel=\\\"nofollow noopener noreferrer\\\">the services doc<\/a>\uff09\uff08PS:\u5b98\u65b9 \u82f1\u6587\uff09\u4e5f\u53ef\u4ee5\u5728\u5404\u79cd\u7ec8\u7aef\u4e2d\u4ee5\u8f6e\u8be2\u7684\u65b9\u5f0f\u505a\u4e00\u4e9b\u7b80\u5355\u7684TCP\u548cUDP\u4f20\u8f93\u3002<br \/>\n\u670d\u52a1\u7aef\u70b9\u76ee\u524d\u662f\u901a\u8fc7DNS\u6216\u8005\u73af\u5883\u53d8\u91cf(\u00a0Docker-links-compatible\u00a0\u548c Kubernetes{FOO}_SERVICE_HOST\u00a0\u53ca\u00a0{FOO}_SERVICE_PORT\u00a0\u53d8\u91cf\u90fd\u652f\u6301)\u3002\u8fd9\u4e9b\u53d8\u91cf\u7531\u670d\u52a1\u4ee3\u7406\u6240\u7ba1\u7406\u7684\u7aef\u53e3\u6765\u89e3\u6790\u3002<\/p>\n<h2>Kubernetes\u63a7\u5236\u9762\u677f<\/h2>\n<p>Kubernetes\u63a7\u5236\u9762\u677f\u53ef\u4ee5\u5206\u4e3a\u591a\u4e2a\u90e8\u5206\u3002\u76ee\u524d\u5b83\u4eec\u90fd\u8fd0\u884c\u5728\u4e00\u4e2a<em>master<\/em>\u00a0\u8282\u70b9\uff0c\u7136\u800c\u4e3a\u4e86\u8fbe\u5230\u9ad8\u53ef\u7528\u6027\uff0c\u8fd9\u9700\u8981\u6539\u53d8\u3002\u4e0d\u540c\u90e8\u5206\u4e00\u8d77\u534f\u4f5c\u63d0\u4f9b\u4e00\u4e2a\u7edf\u4e00\u7684\u5173\u4e8e\u96c6\u7fa4\u7684\u89c6\u56fe\u3002<\/p>\n<h2>etcd<\/h2>\n<p>\u6240\u6709master\u7684\u6301\u7eed\u72b6\u6001\u90fd\u5b58\u5728etcd\u7684\u4e00\u4e2a\u5b9e\u4f8b\u4e2d\u3002\u8fd9\u53ef\u4ee5\u5f88\u597d\u5730\u5b58\u50a8\u914d\u7f6e\u6570\u636e\u3002\u56e0\u4e3a\u6709watch(\u89c2\u5bdf\u8005)\u7684\u652f\u6301\uff0c\u5404\u90e8\u4ef6\u534f\u8c03\u4e2d\u7684\u6539\u53d8\u53ef\u4ee5\u5f88\u5feb\u88ab\u5bdf\u89c9\u3002<\/p>\n<h2>Kubernetes API Server<\/h2>\n<p>API\u670d\u52a1\u63d0\u4f9b<a href=\\\"https:\/\/github.com\/kubernetes\/kubernetes\/blob\/release-1.2\/docs\/api.md\\\" target=\\\"_blank\\\" rel=\\\"nofollow noopener noreferrer\\\">Kubernetes API<\/a>\u00a0\uff08PS:\u5b98\u65b9 \u82f1\u6587\uff09\u7684\u670d\u52a1\u3002\u8fd9\u4e2a\u670d\u52a1\u8bd5\u56fe\u901a\u8fc7\u628a\u6240\u6709\u6216\u8005\u5927\u90e8\u5206\u7684\u4e1a\u52a1\u903b\u8f91\u653e\u5230\u4e0d\u4e24\u53ea\u7684\u90e8\u4ef6\u4e2d\u4ece\u800c\u4f7f\u5176\u5177\u6709CRUD\u7279\u6027\u3002\u5b83\u4e3b\u8981\u5904\u7406REST\u64cd\u4f5c\uff0c\u5728etcd\u4e2d\u9a8c\u8bc1\u66f4\u65b0\u8fd9\u4e9b\u5bf9\u8c61\uff08\u5e76\u6700\u7ec8\u5b58\u50a8\uff09\u3002<\/p>\n<h2>Scheduler<\/h2>\n<p>\u8c03\u5ea6\u5668\u628a\u672a\u8c03\u5ea6\u7684pod\u901a\u8fc7binding api\u7ed1\u5b9a\u5230\u8282\u70b9\u4e0a\u3002\u8c03\u5ea6\u5668\u662f\u53ef\u63d2\u62d4\u7684\uff0c\u5e76\u4e14\u6211\u4eec\u671f\u5f85\u652f\u6301\u591a\u96c6\u7fa4\u7684\u8c03\u5ea6\uff0c\u672a\u6765\u751a\u81f3\u5e0c\u671b\u53ef\u4ee5\u652f\u6301\u7528\u6237\u81ea\u5b9a\u4e49\u7684\u8c03\u5ea6\u5668\u3002<\/p>\n<h2>Kubernetes\u63a7\u5236\u7ba1\u7406\u670d\u52a1\u5668<\/h2>\n<p>\u6240\u6709\u5176\u5b83\u7684\u96c6\u7fa4\u7ea7\u522b\u7684\u529f\u80fd\u76ee\u524d\u90fd\u662f\u7531\u63a7\u5236\u7ba1\u7406\u5668\u6240\u8d1f\u8d23\u3002\u4f8b\u5982\uff0c\u7aef\u70b9\u5bf9\u8c61\u662f\u88ab\u7aef\u70b9\u63a7\u5236\u5668\u6765\u521b\u5efa\u548c\u66f4\u65b0\u3002\u8fd9\u4e9b\u6700\u7ec8\u53ef\u4ee5\u88ab\u5206\u9694\u6210\u4e0d\u540c\u7684\u90e8\u4ef6\u6765\u8ba9\u5b83\u4eec\u72ec\u81ea\u7684\u53ef\u63d2\u62d4\u3002<br \/>\n<\/article>\n","protected":false},"excerpt":{"rendered":"<p>Kubernetes\u96c6\u7fa4\u5305\u542b\u6709\u8282\u70b9\u4ee3\u7406kubelet\u548cMaster\u7ec4\u4ef6(APIs, scheduler, et &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"http:\/\/www.weijing.co\/?p=1546\"> <span class=\"screen-reader-text\">Kubernetes\u8bbe\u8ba1\u67b6\u6784<\/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\u5305\u542b\u6709\u8282\u70b9\u4ee3\u7406kubelet\u548cMaster\u7ec4\u4ef6(APIs, scheduler, et&hellip;","_links":{"self":[{"href":"http:\/\/www.weijing.co\/index.php?rest_route=\/wp\/v2\/posts\/1546"}],"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=1546"}],"version-history":[{"count":0,"href":"http:\/\/www.weijing.co\/index.php?rest_route=\/wp\/v2\/posts\/1546\/revisions"}],"wp:attachment":[{"href":"http:\/\/www.weijing.co\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1546"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.weijing.co\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1546"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.weijing.co\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1546"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}