{"id":1991,"date":"2020-08-19T12:20:53","date_gmt":"2020-08-19T04:20:53","guid":{"rendered":"http:\/\/blog.ywdevops.cn\/?p=1991"},"modified":"2025-05-19T14:31:53","modified_gmt":"2025-05-19T06:31:53","slug":"k8s","status":"publish","type":"post","link":"https:\/\/blog.ywdevops.cn\/index.php\/2020\/08\/19\/k8s\/","title":{"rendered":"k8s\u96c6\u7fa4\u67b6\u6784"},"content":{"rendered":"\n<ul class=\"wp-block-list\"><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"> Kubernetes \u4e3b\u8981\u7531\u4ee5\u4e0b\u51e0\u4e2a\u6838\u5fc3\u7ec4\u4ef6\u7ec4\u6210\uff1a <\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li> etcd \uff1a\u96c6\u7fa4\u7684\u5927\u8111\uff0c\u5b58\u50a8\u4e86\u96c6\u7fa4\u7684\u6240\u6709\u5173\u952e\u4fe1\u606f\uff0c\u5982\uff1apod\u914d\u7f6e\u3001\u72b6\u6001\u3001\u8c03\u5ea6\u4fe1\u606f\uff0cservice\u7684\u540d\u79f0\u3001\u7aef\u53e3\u3001\u9009\u62e9\u5668\uff0cConfigMap\u548cSecret\uff0cnode\u8282\u70b9\u72b6\u6001\u3001\u8d44\u6e90\u4f7f\u7528\u72b6\u51b5\uff0cnamespace\u5b9a\u4e49\u548c\u72b6\u6001\uff0cDeployment\u3001Damonset\u3001StatefulSet\u7b49<\/li>\n\n\n\n<li> kube-apiserver \u63d0\u4f9b\u4e86\u8d44\u6e90\u64cd\u4f5c\u7684\u552f\u4e00\u5165\u53e3\uff0c\u6240\u6709\u7ec4\u4ef6\u4e4b\u95f4\u7684\u901a\u8baf\u90fd\u8981\u901a\u8fc7apiserver\u6765\u5b8c\u6210\uff0c\u5e76\u63d0\u4f9b\u8ba4\u8bc1\u3001\u6388\u6743\u3001\u8bbf\u95ee\u63a7\u5236\u7b49\u673a\u5236\uff1b <\/li>\n\n\n\n<li> kube-controller-manager\uff1a\u96c6\u7fa4\u4e2d\u7684\u6838\u5fc3\u7ec4\u4ef6\u4e4b\u4e00\uff0c\u5b83\u901a\u8fc7\u8fd0\u884c\u591a\u79cd\u63a7\u5236\u5668\uff0c\u786e\u4fdd\u96c6\u7fa4\u7684\u5b9e\u9645\u72b6\u6001\u4e0e\u671f\u671b\u72b6\u6001\u4e00\u81f4\u3002\u8fd9\u4e9b\u63a7\u5236\u5668\u5305\u62ec\u8282\u70b9\u63a7\u5236\u5668\u3001\u526f\u672c\u63a7\u5236\u5668\u3001\u8d44\u6e90\u914d\u989d\u63a7\u5236\u5668\u3001\u547d\u540d\u7a7a\u95f4\u63a7\u5236\u5668\u3001\u670d\u52a1\u8d26\u6237\u548c\u4ee4\u724c\u63a7\u5236\u5668\u3001\u7aef\u70b9\u63a7\u5236\u5668\u3001\u6301\u4e45\u5377\u63a7\u5236\u5668\u3001\u5783\u573e\u56de\u6536\u63a7\u5236\u5668\u548c\u8bc1\u4e66\u7ba1\u7406\u63a7\u5236\u5668\u7b49\u3002\u5b83\u4eec\u5171\u540c\u534f\u4f5c\uff0c\u7ba1\u7406\u96c6\u7fa4\u4e2d\u7684\u8d44\u6e90\u751f\u547d\u5468\u671f\u3001\u72b6\u6001\u540c\u6b65\u3001\u8d1f\u8f7d\u5747\u8861\u3001\u8d44\u6e90\u6e05\u7406\u7b49\u4efb\u52a1\uff0c\u786e\u4fdd Kubernetes \u96c6\u7fa4\u7684\u7a33\u5b9a\u8fd0\u884c\u548c\u9ad8\u6548\u7ba1\u7406 <\/li>\n\n\n\n<li> kube-scheduler \u8d1f\u8d23\u8d44\u6e90\u7684\u8c03\u5ea6\uff0c\u6309\u7167\u9884\u5b9a\u7684\u8c03\u5ea6\u7b56\u7565\u5c06 Pod \u8c03\u5ea6\u5230\u76f8\u5e94\u7684\u673a\u5668 \u4e0a\uff1b <\/li>\n\n\n\n<li> kubelet \uff1a \u8d1f\u8d23\u7ba1\u7406\u8282\u70b9\u4e0a\u7684 Pod \u548c\u5bb9\u5668\u7684\u751f\u547d\u5468\u671f\uff0c\u786e\u4fdd\u8282\u70b9\u7684\u72b6\u6001\u4e0e\u671f\u671b\u72b6\u6001\u4e00\u81f4\u3002\u5b83\u901a\u8fc7\u4e0e <code>kube-apiserver<\/code> \u7684\u4ea4\u4e92\uff0c\u83b7\u53d6\u914d\u7f6e\u4fe1\u606f\u5e76\u62a5\u544a\u72b6\u6001\uff0c\u540c\u65f6\u7ba1\u7406\u5bb9\u5668\u7684\u8fd0\u884c\u65f6\u73af\u5883\u3001\u8d44\u6e90\u4f7f\u7528\u548c\u5b89\u5168\u6027\uff0c\u540c\u65f6\u4e5f\u8d1f\u8d23 Volume\uff08CVI\uff09\u548c\u7f51\u7edc\uff08CNI\uff09\u7684\u7ba1\u7406\uff1b <\/li>\n\n\n\n<li> Container runtime \u8d1f\u8d23\u955c\u50cf\u7ba1\u7406\u4ee5\u53ca Pod \u548c\u5bb9\u5668\u7684\u771f\u6b63\u8fd0\u884c\uff08CRI\uff09\uff0c\u9ed8\u8ba4\u7684\u5bb9\u5668\u8fd0\u884c\u65f6\u4e3a Docker\uff1b <\/li>\n\n\n\n<li> kube-proxy \u8d1f\u8d23\u4e3a Service \u63d0\u4f9b cluster \u5185\u90e8\u7684\u670d\u52a1\u53d1\u73b0\u548c\u8d1f\u8f7d\u5747\u8861\uff1b \u670d\u52a1\u53d1\u73b0\uff1a<code>kube-proxy<\/code> \u901a\u8fc7\u76d1\u542c Kubernetes API Server\uff0c\u83b7\u53d6\u96c6\u7fa4\u4e2d\u6240\u6709\u670d\u52a1\uff08Service\uff09\u548c Pod \u7684\u4fe1\u606f\u3002\u5f53\u5ba2\u6237\u7aef\u8bf7\u6c42\u67d0\u4e2a\u670d\u52a1\u65f6\uff0c<code>kube-proxy<\/code> \u80fd\u591f\u6839\u636e\u670d\u52a1\u7684\u5b9a\u4e49\uff0c\u627e\u5230\u5bf9\u5e94\u7684\u540e\u7aef Pod\u3002\u8d1f\u8f7d\u5747\u8861\uff1a<code>kube-proxy<\/code> \u4e3a\u6bcf\u4e2a\u670d\u52a1\u63d0\u4f9b\u8d1f\u8f7d\u5747\u8861\u529f\u80fd\uff0c\u5c06\u5ba2\u6237\u7aef\u7684\u8bf7\u6c42\u5747\u5300\u5206\u914d\u5230\u540e\u7aef\u7684\u591a\u4e2a Pod \u4e0a\u3002\u5b83\u652f\u6301\u591a\u79cd\u8d1f\u8f7d\u5747\u8861\u7b56\u7565\uff0c\u5982\u8f6e\u8be2\u3001\u968f\u673a\u7b49<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"964\" height=\"495\" src=\"http:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/07\/14-4.png\" alt=\"\" class=\"wp-image-1992\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/07\/14-4.png 964w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/07\/14-4-300x154.png 300w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/07\/14-4-768x394.png 768w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/07\/14-4-600x308.png 600w\" sizes=\"auto, (max-width: 964px) 100vw, 964px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"> \u9664\u4e86\u6838\u5fc3\u7ec4\u4ef6\uff0c\u8fd8\u6709\u4e00\u4e9b\u63a8\u8350\u7684 Add-ons\uff1a <\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li> kube-dns \u8d1f\u8d23\u4e3a\u6574\u4e2a\u96c6\u7fa4\u63d0\u4f9b DNS \u670d\u52a1 <\/li>\n\n\n\n<li> Ingress Controller \u4e3a\u670d\u52a1\u63d0\u4f9b\u5916\u7f51\u5165\u53e3 <\/li>\n\n\n\n<li> Heapster \u63d0\u4f9b\u8d44\u6e90\u76d1\u63a7 <\/li>\n\n\n\n<li> Dashboard \u63d0\u4f9b GUI <\/li>\n\n\n\n<li> Federation \u63d0\u4f9b\u8de8\u53ef\u7528\u533a\u7684\u96c6\u7fa4 <\/li>\n\n\n\n<li> Fluentd-elasticsearch \u63d0\u4f9b\u96c6\u7fa4\u65e5\u5fd7\u91c7\u96c6\u3001\u5b58\u50a8\u4e0e\u67e5\u8be2 <\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"> Kubernetes \u591a\u7ec4\u4ef6\u4e4b\u95f4\u7684\u901a\u4fe1\u539f\u7406\u4e3a :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li> API Server \u8d1f\u8d23 etcd \u5b58\u50a8\u7684\u6240\u6709\u64cd\u4f5c\uff0c\u4e14\u53ea\u6709 API Server \u624d\u76f4\u63a5\u64cd\u4f5c etcd \u96c6\u7fa4 <\/li>\n\n\n\n<li> API Server \u5bf9\u5185\uff08\u96c6\u7fa4\u4e2d\u7684\u5176\u4ed6\u7ec4\u4ef6\uff09\u548c\u5bf9\u5916\uff08\u7528\u6237\uff09\u63d0\u4f9b\u7edf\u4e00\u7684 REST API\uff0c\u5176\u4ed6\u7ec4\u4ef6\u5747\u901a\u8fc7 API Server \u8fdb\u884c\u901a\u4fe1 <\/li>\n\n\n\n<li> Controller Manager\u3001Scheduler\u3001Kube-proxy \u548c Kubelet \u7b49\u5747\u901a\u8fc7 API Server watch API \u76d1\u6d4b\u8d44\u6e90\u53d8\u5316\u60c5\u51b5\uff0c\u5e76\u5bf9\u8d44\u6e90\u4f5c\u76f8\u5e94\u7684\u64cd\u4f5c <\/li>\n\n\n\n<li> \u6240\u6709\u9700\u8981\u66f4\u65b0\u8d44\u6e90\u72b6\u6001\u7684\u64cd\u4f5c\u5747\u901a\u8fc7 API Server \u7684 REST API \u8fdb\u884c <\/li>\n\n\n\n<li> API Server \u4e5f\u4f1a\u76f4\u63a5\u8c03\u7528 Kubelet API\uff08\u5982 logs, exec, attach \u7b49\uff09\uff0c\u9ed8\u8ba4\u4e0d\u6821\u9a8c Kubelet \u8bc1\u4e66\uff0c\u4f46\u53ef\u4ee5\u901a\u8fc7 &#8211;kubelet-certificate-authority \u5f00\u542f\uff08\u800c GKE \u901a\u8fc7 SSH \u96a7\u9053\u4fdd\u62a4\u5b83\u4eec\u4e4b\u95f4\u7684\u901a\u4fe1\uff09 <\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u521b\u5efa\u4e00\u4e2apod\u7684\u6d41\u7a0b\u4e3a\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li> \u7528\u6237\u901a\u8fc7 REST API \u521b\u5efa\u4e00\u4e2a Pod <\/li>\n\n\n\n<li> API Server \u5c06\u5176\u5199\u5165 etcd <\/li>\n\n\n\n<li> Scheduluer \u68c0\u6d4b\u5230\u672a\u7ed1\u5b9a Node \u7684 Pod\uff0c\u5f00\u59cb\u8c03\u5ea6\u5e76\u66f4\u65b0 Pod \u7684 Node \u7ed1\u5b9a <\/li>\n\n\n\n<li> Kubelet \u68c0\u6d4b\u5230\u6709\u65b0\u7684 Pod \u8c03\u5ea6\u8fc7\u6765\uff0c\u901a\u8fc7 Container Runtime \u8fd0\u884c\u8be5 Pod <\/li>\n\n\n\n<li> Kubelet \u901a\u8fc7 Container Runtime \u53d6\u5230 Pod \u72b6\u6001\uff0c\u5e76\u66f4\u65b0\u5230 API Server \u4e2d <\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u7aef\u53e3\u53f7\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"931\" height=\"572\" src=\"http:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/08\/16.png\" alt=\"\" class=\"wp-image-1993\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/08\/16.png 931w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/08\/16-300x184.png 300w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/08\/16-768x472.png 768w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/08\/16-600x369.png 600w\" sizes=\"auto, (max-width: 931px) 100vw, 931px\" \/><\/figure>\n\n\n\n<p class=\"has-medium-font-size wp-block-paragraph\"><strong>Worker node<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"902\" height=\"433\" src=\"http:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/08\/17.png\" alt=\"\" class=\"wp-image-1994\" srcset=\"https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/08\/17.png 902w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/08\/17-300x144.png 300w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/08\/17-768x369.png 768w, https:\/\/blog.ywdevops.cn\/wp-content\/uploads\/2020\/08\/17-600x288.png 600w\" sizes=\"auto, (max-width: 902px) 100vw, 902px\" \/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Kubernetes \u4e3b\u8981\u7531\u4ee5\u4e0b\u51e0\u4e2a\u6838\u5fc3\u7ec4\u4ef6\u7ec4\u6210\uff1a \u9664\u4e86\u6838\u5fc3\u7ec4\u4ef6\uff0c\u8fd8\u6709\u4e00\u4e9b\u63a8\u8350\u7684 Add-ons\uff1a Kuber [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":2036,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[93,23],"tags":[99],"class_list":["post-1991","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-kubernetes","category-rong","tag-kubernetes"],"blocksy_meta":{"styles_descriptor":{"styles":{"desktop":"","tablet":"","mobile":""},"google_fonts":[],"version":8}},"_links":{"self":[{"href":"https:\/\/blog.ywdevops.cn\/index.php\/wp-json\/wp\/v2\/posts\/1991","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.ywdevops.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.ywdevops.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.ywdevops.cn\/index.php\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.ywdevops.cn\/index.php\/wp-json\/wp\/v2\/comments?post=1991"}],"version-history":[{"count":12,"href":"https:\/\/blog.ywdevops.cn\/index.php\/wp-json\/wp\/v2\/posts\/1991\/revisions"}],"predecessor-version":[{"id":18167,"href":"https:\/\/blog.ywdevops.cn\/index.php\/wp-json\/wp\/v2\/posts\/1991\/revisions\/18167"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blog.ywdevops.cn\/index.php\/wp-json\/wp\/v2\/media\/2036"}],"wp:attachment":[{"href":"https:\/\/blog.ywdevops.cn\/index.php\/wp-json\/wp\/v2\/media?parent=1991"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.ywdevops.cn\/index.php\/wp-json\/wp\/v2\/categories?post=1991"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.ywdevops.cn\/index.php\/wp-json\/wp\/v2\/tags?post=1991"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}