{"id":1796,"date":"2020-07-01T05:24:55","date_gmt":"2020-06-30T21:24:55","guid":{"rendered":"http:\/\/39.97.231.10\/?p=1796"},"modified":"2020-07-01T05:24:55","modified_gmt":"2020-06-30T21:24:55","slug":"kubernetes-%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5%e4%b8%8e%e7%bb%84%e4%bb%b6%e5%8e%9f%e7%90%86","status":"publish","type":"post","link":"http:\/\/www.weijing.co\/?p=1796","title":{"rendered":"Kubernetes \u57fa\u672c\u6982\u5ff5\u4e0e\u7ec4\u4ef6\u539f\u7406"},"content":{"rendered":"<article>\u4e00. \u4ec0\u4e48\u662fkubernetes\uff1f<br \/>\n<a href=\\\"https:\/\/links.jianshu.com\/go?to=https%3A%2F%2Fkubernetes.io%2Fzh%2Fdocs%2F\\\" target=\\\"_blank\\\" rel=\\\"noopener noreferrer\\\">kubernetes<\/a>\u662f\u4e00\u4e2a\u53ef\u79fb\u690d\u7684\uff0c\u53ef\u6269\u5c55\u7684\u5f00\u6e90\u5e73\u53f0\uff0c\u662fGoogle\u5f00\u6e90\u7684\u5bb9\u5668\u96c6\u7fa4\u7ba1\u7406\u7cfb\u7edf\uff08\u8c37\u6b4c\u5185\u90e8:Borg)\uff0c\u7528\u4e8e\u7ba1\u7406\u5bb9\u5668\u5316\u7684\u5de5\u4f5c\u8d1f\u8f7d\u548c\u670d\u52a1\uff0c\u53ef\u4fc3\u8fdb\u58f0\u660e\u5f0f\u914d\u7f6e\u548c\u81ea\u52a8\u5316\u3002<\/p>\n<h1>\u4e8c. \u4e3a\u4ec0\u4e48\u4f7f\u7528kubernetes\uff1f<\/h1>\n<p>k8s\u5728Docker\u6280\u672f\u7684\u57fa\u7840\u4e0a\uff0c\u4e3a\u5bb9\u5668\u5316\u7684\u5e94\u7528\u63d0\u4f9b\u90e8\u7f72\u8fd0\u884c\u3001\u8d44\u6e90\u8c03\u5ea6\u3001\u670d\u52a1\u53d1\u73b0\u548c\u52a8\u6001\u4f38\u7f29\u7b49\u4e00\u7cfb\u5217\u5b8c\u6574\u529f\u80fd\uff0c\u63d0\u9ad8\u4e86\u5927\u89c4\u6a21\u5bb9\u5668\u96c6\u7fa4\u7ba1\u7406\u7684\u4fbf\u6377\u6027\u3002\u540c\u65f6Kubernetes\u662f\u4e00\u4e2a\u5b8c\u5907\u7684\u5206\u5e03\u5f0f\u7cfb\u7edf\u652f\u6491\u5e73\u53f0\uff0c\u5177\u6709\u5b8c\u5907\u7684\u96c6\u7fa4\u7ba1\u7406\u80fd\u529b\uff0c\u591a\u6269\u591a\u5c42\u6b21\u7684\u5b89\u5168\u9632\u62a4\u548c\u51c6\u5165\u673a\u5236\u3001\u591a\u79df\u6237\u5e94\u7528\u652f\u6491\u80fd\u529b\u3001\u900f\u660e\u7684\u670d\u52a1\u6ce8\u518c\u548c\u53d1\u73b0\u673a\u5236\u3001\u5167\u5efa\u667a\u80fd\u8d1f\u8f7d\u5747\u8861\u5668\u3001\u5f3a\u5927\u7684\u6545\u969c\u53d1\u73b0\u548c\u81ea\u6211\u4fee\u590d\u80fd\u529b\u3001\u670d\u52a1\u6eda\u52a8\u5347\u7ea7\u548c\u5728\u7ebf\u6269\u5bb9\u80fd\u529b\u3001\u53ef\u6269\u5c55\u7684\u8d44\u6e90\u81ea\u52a8\u8c03\u5ea6\u673a\u5236\u4ee5\u53ca\u591a\u7c92\u5ea6\u7684\u8d44\u6e90\u914d\u989d\u7ba1\u7406\u80fd\u529b\u3002\u540c\u65f6Kubernetes\u63d0\u4f9b\u5b8c\u5584\u7684\u7ba1\u7406\u5de5\u5177\uff0c\u6db5\u76d6\u4e86\u5305\u62ec\u5f00\u53d1\u3001\u90e8\u7f72\u6d4b\u8bd5\u3001\u8fd0\u7ef4\u76d1\u63a7\u5728\u5185\u7684\u5404\u4e2a\u73af\u8282\u3002<\/p>\n<h1>\u4e09. \u96c6\u7fa4\u67b6\u6784\u53ca\u7ec4\u4ef6<\/h1>\n<h2>1. \u96c6\u7fa4\u67b6\u6784<\/h2>\n<div>\n<div>\n<div><\/div>\n<div data-width=\\\"1858\\\" data-height=\\\"1126\\\"><img src=\\\"https:\/\/upload-images.jianshu.io\/upload_images\/9644303-68fd2a486214d371?imageMogr2\/auto-orient\/strip|imageView2\/2\/w\/1200\/format\/webp\\\" data-original-src=\\\"\/\/upload-images.jianshu.io\/upload_images\/9644303-68fd2a486214d371\\\" data-original-width=\\\"1858\\\" data-original-height=\\\"1126\\\" data-original-format=\\\"image\/png\\\" data-original-filesize=\\\"869739\\\" data-image-index=\\\"0\\\" \/><\/div>\n<\/div>\n<div><\/div>\n<\/div>\n<p>Master<br \/>\n\u8d1f\u8d23\u7ba1\u7406\u96c6\u7fa4\uff0c\u90e8\u7f72\u96c6\u7fa4\u6240\u9700\u7ec4\u4ef6etcd\uff0capiserver\uff0ccontroller manager\uff0cscheduler\u3002master \u534f\u8c03\u96c6\u7fa4\u4e2d\u7684\u6240\u6709\u6d3b\u52a8\uff0c\u4f8b\u5982\u8c03\u5ea6\u5e94\u7528\u7a0b\u5e8f\u3001\u7ef4\u62a4\u5e94\u7528\u7a0b\u5e8f\u7684\u6240\u9700\u72b6\u6001\u3001\u6269\u5c55\u5e94\u7528\u7a0b\u5e8f\u548c\u6eda\u52a8\u66f4\u65b0\u3002<br \/>\nNode<br \/>\n\u8282\u70b9\u662f Kubernetes \u96c6\u7fa4\u4e2d\u7684\u5de5\u4f5c\u8282\u70b9\uff0c\u7528\u4e8e\u6258\u7ba1\u6b63\u5728\u8fd0\u884c\u7684\u5e94\u7528\u7a0b\u5e8f\uff0c\u53ef\u4ee5\u662f\u7269\u7406\u673a\u6216\u865a\u62df\u673a\u3002 \u6bcf\u4e2a\u5de5\u4f5c\u8282\u70b9\u90fd\u6709\u4e00\u4e2a\u00a0kubelet\u548ckube-proxy\uff0c\u5b83\u662f\u7ba1\u7406\u8282\u70b9\u5e76\u4e0e Kubernetes Master \u8282\u70b9\u8fdb\u884c\u901a\u4fe1\u7684\u4ee3\u7406\u3002\u8282\u70b9\u4e0a\u8fd8\u5e94\u5177\u6709\u5904\u7406\u5bb9\u5668\u64cd\u4f5c\u7684\u5bb9\u5668\u8fd0\u884c\u65f6\uff0c\u4f8b\u5982 Docker \u6216 rkt\u3002\u4e00\u4e2a Kubernetes \u5de5\u4f5c\u96c6\u7fa4\u81f3\u5c11\u6709\u4e09\u4e2a\u8282\u70b9\u3002<\/p>\n<h2>2. \u96c6\u7fa4\u7ec4\u4ef6<\/h2>\n<ul>\n<li>etcd\uff1a \u952e\u503c\u5b58\u50a8\u6570\u636e\u5e93\uff0c\u7ef4\u62a4\u96c6\u7fa4\u5185\u5404\u4e2a\u8282\u70b9\u72b6\u6001\u7684\u4e00\u81f4\u6027\uff0c\u4fdd\u5b58\u96c6\u7fa4\u7684\u72b6\u6001\u53ca\u914d\u7f6e\uff1b<\/li>\n<li>apiserver\uff1a\u5904\u7406\u8d44\u6e90\u64cd\u4f5c\u7684\u8bf7\u6c42\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\uff1a \u63a7\u5236\u5668\u7ba1\u7406\uff0c\u8d1f\u8d23\u7ef4\u62a4\u96c6\u7fa4\u7684\u72b6\u6001\uff0c\u5982\u6545\u969c\u68c0\u6d4b\u3001\u81ea\u52a8\u6269\u5c55\u3001\u6eda\u52a8\u66f4\u65b0\u7b49\uff1b<\/li>\n<li>scheduler\uff1a\u8c03\u5ea6\u5668\uff0c\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\u8282\u70b9\uff1b<\/li>\n<li>kubelet\uff1a\u8d1f\u8d23\u7ef4\u62a4\u5bb9\u5668\u7684\u751f\u547d\u5468\u671f\uff0c Pod \u7684\u521b\u5efa\u3001\u542f\u52a8\u3001\u76d1\u63a7\u3001\u91cd\u542f\u3001\u9500\u6bc1\u7b49\u5de5\u4f5c\uff0c\u5904\u7406Master\u8282\u70b9\u4e0b\u53d1\u5230\u672c\u8282\u70b9\u7684\u4efb\u52a1\uff1b<\/li>\n<li>Container runtime\uff1a \u8d1f\u8d23\u955c\u50cf\u7ba1\u7406\u4ee5\u53ca Pod \u548c\u5bb9\u5668\u7684\u771f\u6b63\u8fd0\u884c\uff08CRI\uff09\uff1b<\/li>\n<li>kube-proxy\uff1a \u8d1f\u8d23\u4e3a Service \u63d0\u4f9b cluster \u5185\u90e8\u7684\u670d\u52a1\u53d1\u73b0\u548c\u8d1f\u8f7d\u5747\u8861\uff1b<\/li>\n<li>Flannel\/calico\uff1a\u7f51\u7edc\u63d2\u4ef6\uff0c \u8d1f\u8d23\u4e3a\u6574\u4e2a\u96c6\u7fa4\u63d0\u4f9b IP \u670d\u52a1\uff1b<\/li>\n<li>kube-dns\/coredns\uff1a \u8d1f\u8d23\u4e3a\u6574\u4e2a\u96c6\u7fa4\u63d0\u4f9b DNS \u670d\u52a1\uff1b<\/li>\n<li>Ingress Controller\uff1a \u4e3a\u670d\u52a1\u63d0\u4f9b\u5916\u7f51\u5165\u53e3\uff1b<\/li>\n<\/ul>\n<h1>\u56db. \u96c6\u7fa4\u5de5\u4f5c\u6d41\u7a0b<\/h1>\n<p>\u96c6\u7fa4\u5404\u7ec4\u4ef6\u7684\u901a\u4fe1\u539f\u7406\uff0c\u4ee5\u521b\u5efaPod\u4e3a\u4f8b\uff1a<\/p>\n<div>\n<div>\n<div><\/div>\n<div data-width=\\\"800\\\" data-height=\\\"534\\\"><img src=\\\"https:\/\/upload-images.jianshu.io\/upload_images\/9644303-87ad770fac8f5f5b?imageMogr2\/auto-orient\/strip|imageView2\/2\/w\/800\/format\/webp\\\" data-original-src=\\\"\/\/upload-images.jianshu.io\/upload_images\/9644303-87ad770fac8f5f5b\\\" data-original-width=\\\"800\\\" data-original-height=\\\"534\\\" data-original-format=\\\"image\/png\\\" data-original-filesize=\\\"67335\\\" data-image-index=\\\"1\\\" \/><\/div>\n<\/div>\n<div><\/div>\n<\/div>\n<ol>\n<li>\u4f7f\u7528REST API \u521b\u5efaPod\uff0c\u5373(kubectl create pod)\u8bf7\u6c42apiserver\u3002<\/li>\n<li>apiserver\u63a5\u6536\u5230pod\u521b\u5efa\u8bf7\u6c42\u540e\uff0c\u5199\u5165\u5230Etcd\uff0c\u4f1a\u5b58\u5728\u8bb0\u5f55\u4f46\u4e0d\u4f1a\u521b\u5efa\u3002<\/li>\n<li>scheduluer \u68c0\u6d4b\u5230\u6709\u672a\u7ed1\u5b9a Node \u7684 Pod\uff0c\u67e5\u627e\u96c6\u7fa4\u4e2d\u8d44\u6e90\u5145\u8db3\u7684Node\u7ed1\u5b9a\uff0c\u5e76\u5c06\u8c03\u5ea6\u4fe1\u606f\u5199\u5165\u5230Etcd\u3002<\/li>\n<li>kubelet \u901a\u8fc7\u76d1\u6d4betcd\u6570\u636e\u5e93\uff0c\u68c0\u6d4b\u5230\u6709\u7ed1\u5b9a\u8be5\u8282\u70b9\u7684Pod\u8c03\u5ea6\u8fc7\u6765\u9700\u8981\u521b\u5efa\uff0c\u8c03\u7528container runtime \u8fd0\u884c\u8be5 Pod\u3002<\/li>\n<li>kubelet \u901a\u8fc7 container runtime \u53d6\u5230 Pod \u72b6\u6001\uff0c\u5e76\u66f4\u65b0\u5230 apiserver \u4e2d\u3002<\/li>\n<\/ol>\n<h1>\u4e94. \u57fa\u672c\u6982\u5ff5<\/h1>\n<p>Kubernetes\u4e2d\u7684\u7edd\u5927\u90e8\u5206\u6982\u5ff5\u90fd\u4f1a\u88ab\u62bd\u8c61\u6210Kubernetes\u7ba1\u7406\u7684\u4e00\u79cd\u8d44\u6e90\u5bf9\u8c61\uff0c\u4e0b\u56fe\u4e3ak8s\u8d44\u6e90\u5bf9\u8c61\u5168\u666f\u56fe<\/p>\n<div>\n<div>\n<div><\/div>\n<div data-width=\\\"1266\\\" data-height=\\\"651\\\"><img src=\\\"https:\/\/upload-images.jianshu.io\/upload_images\/9644303-c86138f893b91e15?imageMogr2\/auto-orient\/strip|imageView2\/2\/w\/1200\/format\/webp\\\" data-original-src=\\\"\/\/upload-images.jianshu.io\/upload_images\/9644303-c86138f893b91e15\\\" data-original-width=\\\"1266\\\" data-original-height=\\\"651\\\" data-original-format=\\\"image\/png\\\" data-original-filesize=\\\"283001\\\" data-image-index=\\\"2\\\" \/><\/div>\n<\/div>\n<div><\/div>\n<\/div>\n<h2>1. \u76f8\u5173\u540d\u8bcd<\/h2>\n<h3>NameSpace<\/h3>\n<p>Namespace \u547d\u540d\u7a7a\u95f4\u662f\u5bf9\u4e00\u7ec4\u8d44\u6e90\u548c\u5bf9\u8c61\u7684\u62bd\u8c61\u96c6\u5408\uff0c \u662f Linux \u5185\u6838\u7528\u6765\u9694\u79bb\u5185\u6838\u8d44\u6e90\u7684\u65b9\u5f0f\u3002NameSpace\u505a\u9694\u79bb\uff0cCgroups \u505a\u9650\u5236\uff0crootfs \u505a\u6587\u4ef6\u7cfb\u7edf\u3002<\/p>\n<h3>Label<\/h3>\n<p>Label \u6807\u7b7e\u4ee5 key\/value \u7684\u65b9\u5f0f\u9644\u52a0\u5230\u8d44\u6e90\u5bf9\u8c61\u4e0a\u5982Pod\uff0c \u5176\u4ed6\u5bf9\u8c61\u53ef\u4ee5\u4f7f\u7528 Label Selector \u6765\u9009\u62e9\u4e00\u7ec4\u76f8\u540c label \u7684\u5bf9\u8c61\u3002<\/p>\n<h2>2.\u7f16\u6392\u5bf9\u8c61<\/h2>\n<h3>Pod<\/h3>\n<p>Pod\u662f Kubernetes \u9879\u76ee\u4e2d\u6700\u5c0f\u7684 API \u8d44\u6e90\u5bf9\u8c61\uff0cPod\u53ef\u4ee5\u7531\u4e00\u4e2a\u6216\u591a\u4e2a\u4e1a\u52a1\u5bb9\u5668\u548c\u4e00\u4e2a\u6839\u5bb9\u5668(Pause\u5bb9\u5668)\u7ec4\u6210\u3002\u4e00\u4e2aPod\u8868\u793a\u67d0\u4e2a\u5e94\u7528\u7684\u4e00\u4e2a\u5b9e\u4f8b\u3002Kubernetes \u9879\u76ee\u7684\u8c03\u5ea6\u5668\uff0c\u662f\u7edf\u4e00\u6309\u7167 Pod \u800c\u975e\u5bb9\u5668\u7684\u8d44\u6e90\u9700\u6c42\u8fdb\u884c\u8ba1\u7b97\u7684\uff0c\u51e1\u662f\u8c03\u5ea6\u3001\u7f51\u7edc\u3001\u5b58\u50a8\uff0c\u4ee5\u53ca\u5b89\u5168\u76f8\u5173\u7684\u5c5e\u6027\uff0c\u57fa\u672c\u4e0a\u662f Pod \u7ea7\u522b\u7684\u3002<br \/>\n\u53ef\u4ee5\u8fd9\u6837\u7406\u89e3\uff0c\u4e91\u8ba1\u7b97\u7cfb\u7edf\u7684\u64cd\u4f5c\u7cfb\u7edf\u662f k8s \uff0c\u5bb9\u5668\u5c31\u76f8\u5f53\u4e8e\u662f\u5176\u8fdb\u7a0b\uff0c\u800c Pod \u5219\u662f\u8fdb\u7a0b\u7ec4\uff0c\u5bb9\u5668\u955c\u50cf\u5c31\u662f\u8fd9\u4e2a\u7cfb\u7edf\u91cc\u7684\u201c.exe\u201d\u5b89\u88c5\u5305\u3002Pod \u91cc\u7684\u6240\u6709\u5bb9\u5668\uff0c\u5b83\u4eec\u5171\u4eabPID\u3001IPC\u3001Network\u548cUTS namespace\uff0c\u53ef\u4ee5\u58f0\u660e\u5171\u4eab\u540c\u4e00\u4e2a Volume\u3002<\/p>\n<h3>ReplicaSet<\/h3>\n<p>ReplicaSet\u662fPod\u526f\u672c\u7684\u62bd\u8c61\uff0c\u7528\u4e8e\u89e3\u51b3Pod\u7684\u6269\u5bb9\u548c\u4f38\u7f29\u3002<\/p>\n<h3>Deployment<\/h3>\n<p>Deployment\u901a\u5e38\u7528\u6765\u90e8\u7f72\u65e0\u72b6\u6001\u5e94\u7528\uff0c\u5982Web\u670d\u52a1\uff0c \u8be5\u670d\u52a1\u8fd0\u884c\u7684\u5b9e\u4f8b\u4e0d\u4f1a\u5728\u672c\u5730\u5b58\u50a8\u9700\u8981\u6301\u4e45\u5316\u7684\u6570\u636e\uff0c\u5e76\u4e14\u591a\u4e2a\u5b9e\u4f8b\u5bf9\u4e8e\u540c\u4e00\u4e2a\u8bf7\u6c42\u54cd\u5e94\u7684\u7ed3\u679c\u662f\u5b8c\u5168\u4e00\u81f4\u7684\u3002\u5728\u5185\u90e8\u4f7f\u7528ReplicaSet\u6765\u5b9e\u73b0Pod\u526f\u672c\u7684\u521b\u5efa\u3002Deployment\u786e\u4fdd\u6307\u5b9a\u6570\u91cf\u7684Pod\u201c\u526f\u672c\u201d\u5728\u8fd0\u884c\uff0c\u5e76\u4e14\u652f\u6301\u56de\u6eda\u548c\u6eda\u52a8\u5347\u7ea7\u3002<br \/>\n\u521b\u5efaDeployment\u65f6\uff0c\u9700\u8981\u6307\u5b9a Pod\u6a21\u677f\u548cLabel\u6807\u7b7e\u3002<\/p>\n<h3>StatefulSet<\/h3>\n<p>StatefulSet\u901a\u5e38\u7528\u6765\u90e8\u7f72\u6709\u72b6\u6001\u5e94\u7528\uff0c\u5982Mysql\u670d\u52a1\uff0c\u670d\u52a1\u8fd0\u884c\u7684\u5b9e\u4f8b\u9700\u8981\u5728\u672c\u5730\u5b58\u50a8\u6301\u4e45\u5316\u6570\u636e\uff0c\u591a\u4e2a\u5b9e\u4f8b\u4e4b\u95f4\u6709\u4f9d\u8d56\u62d3\u6251\u5173\u7cfb\uff0c\u6bd4\u5982\uff1a\u4e3b\u4ece\u5173\u7cfb\u3001\u4e3b\u5907\u5173\u7cfb\u3002\u5982\u679c\u505c\u6b62\u6389\u4f9d\u8d56\u4e2d\u7684\u4e00\u4e2aPod\uff0c\u5c31\u4f1a\u5bfc\u81f4\u6570\u636e\u4e22\u5931\u6216\u8005\u96c6\u7fa4\u5d29\u6e83\u3002\u4ed6\u7684\u6838\u5fc3\u529f\u80fd\u5c31\u662f\u901a\u8fc7\u67d0\u79cd\u65b9\u5f0f\u8bb0\u5f55\u8fd9\u4e9b\u72b6\u6001\uff0c\u7136\u540e\u5728 Pod \u88ab\u91cd\u65b0\u521b\u5efa\u65f6\uff0c\u80fd\u591f\u4e3a\u65b0 Pod \u6062\u590d\u8fd9\u4e9b\u72b6\u6001\u3002\u5b83\u5305\u542bDeployment\u63a7\u5236\u5668ReplicaSet\u7684\u6240\u6709\u529f\u80fd\uff0c\u589e\u52a0\u53ef\u4ee5\u5904\u7406Pod\u7684\u542f\u52a8\u987a\u5e8f\uff0c\u4e3a\u4fdd\u7559\u6bcf\u4e2aPod\u7684\u72b6\u6001\u8bbe\u7f6e\u552f\u4e00\u6807\u8bc6\uff0c\u540c\u65f6\u5177\u6709\u4ee5\u4e0b\u529f\u80fd\uff1a<\/p>\n<ul>\n<li>\u7a33\u5b9a\u7684\u3001\u552f\u4e00\u7684\u7f51\u7edc\u6807\u8bc6\u7b26<\/li>\n<li>\u7a33\u5b9a\u7684\u3001\u6301\u4e45\u5316\u7684\u5b58\u50a8<\/li>\n<li>\u6709\u5e8f\u7684\u3001\u4f18\u96c5\u7684\u90e8\u7f72\u548c\u7f29\u653e<\/li>\n<\/ul>\n<h3>DaemonSet<\/h3>\n<p>DaemonSet\uff1a\u670d\u52a1\u5b88\u62a4\u8fdb\u7a0b\uff0c\u5b83\u7684\u4e3b\u8981\u4f5c\u7528\u662f\u5728Kubernetes\u96c6\u7fa4\u7684\u6240\u6709\u8282\u70b9\u4e2d\u8fd0\u884c\u6211\u4eec\u90e8\u7f72\u7684\u5b88\u62a4\u8fdb\u7a0b\uff0c\u76f8\u5f53\u4e8e\u5728\u96c6\u7fa4\u8282\u70b9\u4e0a\u5206\u522b\u90e8\u7f72Pod\u526f\u672c\uff0c\u5982\u679c\u6709\u65b0\u8282\u70b9\u52a0\u5165\u96c6\u7fa4\uff0cDaemonset\u4f1a\u81ea\u52a8\u7684\u5728\u8be5\u8282\u70b9\u4e0a\u8fd0\u884c\u6211\u4eec\u9700\u8981\u90e8\u7f72\u7684Pod\u526f\u672c\uff0c\u76f8\u53cd\u5982\u679c\u6709\u8282\u70b9\u9000\u51fa\u96c6\u7fa4\uff0cDaemonset\u4e5f\u4f1a\u79fb\u9664\u6389\u90e8\u7f72\u5728\u65e7\u8282\u70b9\u7684Pod\u526f\u672c\u3002<br \/>\nDaemonSet\u7684\u4e3b\u8981\u7279\u5f81\uff1a<\/p>\n<ul>\n<li>\u8fd9\u4e2a Pod \u8fd0\u884c\u5728 Kubernetes \u96c6\u7fa4\u91cc\u7684\u6bcf\u4e00\u4e2a\u8282\u70b9\uff08Node\uff09\u4e0a\uff1b<\/li>\n<li>\u6bcf\u4e2a\u8282\u70b9\u4e0a\u53ea\u4f1a\u8fd0\u884c\u4e00\u4e2a\u8fd9\u6837\u7684 Pod \u5b9e\u4f8b\uff1b<\/li>\n<li>\u5982\u679c\u65b0\u7684\u8282\u70b9\u52a0\u5165 Kubernetes \u96c6\u7fa4\u540e\uff0c\u8be5 Pod \u4f1a\u81ea\u52a8\u5730\u5728\u65b0\u8282\u70b9\u4e0a\u88ab\u521b\u5efa\u51fa\u6765\uff1b<\/li>\n<li>\u800c\u5f53\u65e7\u8282\u70b9\u88ab\u5220\u9664\u540e\uff0c\u5b83\u4e0a\u9762\u7684 Pod \u4e5f\u76f8\u5e94\u5730\u4f1a\u88ab\u56de\u6536\u6389\u3002<\/li>\n<\/ul>\n<p>DaemonSet\u5e38\u7528\u573a\u666f\uff1a<\/p>\n<ul>\n<li>\u7f51\u7edc\u63d2\u4ef6\u7684 Agent \u7ec4\u4ef6\uff0c\u5982\uff08Flannel\uff0cCalico\uff09\u9700\u8981\u8fd0\u884c\u5728\u6bcf\u4e00\u4e2a\u8282\u70b9\u4e0a\uff0c\u7528\u6765\u5904\u7406\u8fd9\u4e2a\u8282\u70b9\u4e0a\u7684\u5bb9\u5668\u7f51\u7edc\uff1b<\/li>\n<li>\u5b58\u50a8\u63d2\u4ef6\u7684 Agent \u7ec4\u4ef6\uff0c\u5982\uff08Ceph\uff0cGlusterfs\uff09\u9700\u8981\u8fd0\u884c\u5728\u6bcf\u4e00\u4e2a\u8282\u70b9\u4e0a\uff0c\u7528\u6765\u5728\u8fd9\u4e2a\u8282\u70b9\u4e0a\u6302\u8f7dF\u8fdc\u7a0b\u5b58\u50a8\u76ee\u5f55\uff1b<\/li>\n<li>\u76d1\u63a7\u7cfb\u7edf\u7684\u6570\u636e\u6536\u96c6\u7ec4\u4ef6\uff0c\u5982\uff08Prometheus Node Exporter\uff0cCadvisor\uff09\u9700\u8981\u8fd0\u884c\u5728\u6bcf\u4e00\u4e2a\u8282\u70b9\u4e0a\uff0c\u8d1f\u8d23\u8fd9\u4e2a\u8282\u70b9\u4e0a\u7684\u76d1\u63a7\u4fe1\u606f\u641c\u96c6\u3002<\/li>\n<li>\u65e5\u5fd7\u7cfb\u7edf\u7684\u6570\u636e\u6536\u96c6\u7ec4\u4ef6\uff0c\u5982\uff08Fluent\uff0cLogstash\uff09\u9700\u8981\u8fd0\u884c\u5728\u6bcf\u4e00\u4e2a\u8282\u70b9\u4e0a\uff0c\u8d1f\u8d23\u8fd9\u4e2a\u8282\u70b9\u4e0a\u7684\u65e5\u5fd7\u4fe1\u606f\u641c\u96c6\u3002<\/li>\n<\/ul>\n<h3>Job\/CronJob<\/h3>\n<ul>\n<li>Job\u8d1f\u8d23\u5904\u7406\u4efb\u52a1\uff0c\u5373\u4ec5\u6267\u884c\u4e00\u6b21\u7684\u4efb\u52a1\uff0c\u5b83\u4fdd\u8bc1\u6279\u5904\u7406\u4efb\u52a1\u7684\u4e00\u4e2a\u6216\u591a\u4e2aPod\u6210\u529f\u7ed3\u675f\uff0c\u89e3\u51b3\u4e00\u4e9b\u9700\u8981\u8fdb\u884c\u6279\u91cf\u6570\u636e\u5904\u7406\u548c\u5206\u6790\u7684\u9700\u6c42\uff0c\uff0c\u6bd4\u5982Jenkins Slave\uff0c\u53d1\u5e03\u5b8c\u4ee3\u7801\u540e\u4efb\u52a1\u7ed3\u675f\uff0cPod\u81ea\u52a8\u9500\u6bc1\uff1b<\/li>\n<li>CronJob\u5219\u5c31\u662f\u5728Job\u4e0a\u52a0\u4e0a\u4e86\u65f6\u95f4\u8c03\u5ea6\uff0c\u7528\u6765\u6267\u884c\u4e00\u4e9b\u5468\u671f\u6027\u7684\u4efb\u52a1\u3002<\/li>\n<\/ul>\n<h3>HPA<\/h3>\n<p>Horizontal Pod Autoscaling\uff08Pod\u6c34\u5e73\u81ea\u52a8\u4f38\u7f29\uff09\uff0c\u7b80\u79f0HPA\u3002\u901a\u8fc7\u76d1\u63a7\u5206\u6790RC\u6216\u8005Deployment\u63a7\u5236\u7684\u6240\u6709Pod\u7684\u8d1f\u8f7d\u53d8\u5316\u60c5\u51b5\u6765\u786e\u5b9a\u662f\u5426\u9700\u8981\u8c03\u6574Pod\u7684\u526f\u672c\u6570\u91cf\uff0c\u8fd9\u662fHPA\u6700\u57fa\u672c\u7684\u539f\u7406\u3002<\/p>\n<h2>3. \u5176\u4ed6\u5bf9\u8c61<\/h2>\n<h3>ConfigMap<\/h3>\n<p>ConfigMap\uff1a\u5c31\u662f\u4e3a\u4e86\u8ba9\u955c\u50cf\u548c\u914d\u7f6e\u6587\u4ef6\u89e3\u8026\uff0c\u4ee5\u4fbf\u5b9e\u73b0\u955c\u50cf\u7684\u53ef\u79fb\u690d\u6027\u548c\u53ef\u590d\u7528\u6027\uff0c\u56e0\u4e3a\u4e00\u4e2aconfigMap\u5176\u5b9e\u5c31\u662f\u4e00\u7cfb\u5217\u914d\u7f6e\u4fe1\u606f\u7684\u96c6\u5408\uff0c\u5c06\u6765\u53ef\u76f4\u63a5\u6ce8\u5165\u5230Pod\u4e2d\u7684\u5bb9\u5668\u4f7f\u7528\uff0c\u800c\u6ce8\u5165\u65b9\u5f0f\u6709\u4e24\u79cd\uff0c\u4e00\u79cd\u5c06configMap\u505a\u4e3a\u5b58\u50a8\u5377\uff0c\u4e00\u79cd\u662f\u5c06configMap\u901a\u8fc7env\u4e2dconfigMapKeyRef\u6ce8\u5165\u5230\u5bb9\u5668\u4e2d\uff1b<\/p>\n<h3>RBAC<\/h3>\n<p>RBAC\uff1a\u57fa\u4e8e\u89d2\u8272\u7684\u8bbf\u95ee\u63a7\u5236\uff0c\u53ef\u4ee5\u7528\u6765\u7ed9\u7528\u6237\u6388\u4e88\u5bf9\u96c6\u7fa4\u64cd\u4f5c\u4e0d\u540c\u7684\u6743\u9650\u3002<\/p>\n<h3>Secret<\/h3>\n<p>Secret\uff1a\u7528\u6765\u4fdd\u5b58\u654f\u611f\u4fe1\u606f\uff0c\u4f8b\u5982\u5bc6\u7801\u3001OAuth \u4ee4\u724c\u548c ssh key\u7b49\u7b49\uff0c\u5c06\u8fd9\u4e9b\u4fe1\u606f\u653e\u5728Secret\u4e2d\u6bd4\u653e\u5728Pod\u7684\u5b9a\u4e49\u4e2d\u6216\u8005docker\u955c\u50cf\u4e2d\u6765\u8bf4\u66f4\u52a0\u5b89\u5168\u548c\u7075\u6d3b\u3002<\/p>\n<h2>4. \u670d\u52a1\u53d1\u73b0<\/h2>\n<h3>Service<\/h3>\n<p>Service\uff1a\u662f\u4e00\u79cd\u62bd\u8c61\u7684\u5bf9\u8c61\uff0c\u5b83\u5b9a\u4e49\u4e86\u4e00\u7ec4Pod\u7684\u903b\u8f91\u96c6\u5408\u548c\u4e00\u4e2a\u7528\u4e8e\u8bbf\u95ee\u5b83\u4eec\u7684\u7b56\u7565\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u8bbf\u95eeService\u6765\u8bbf\u95ee\u5230\u540e\u7aef\u7684Pod\u670d\u52a1\uff0c\u5176\u5b9e\u8fd9\u4e2a\u6982\u5ff5\u548c\u5fae\u670d\u52a1\u975e\u5e38\u7c7b\u4f3c\u3002\u4e00\u4e2aSerivce\u4e0b\u9762\u5305\u542b\u7684Pod\u96c6\u5408\u4e00\u822c\u662f\u7531Label Selector\u6765\u51b3\u5b9a\u7684\u3002<\/p>\n<h3>Ingress<\/h3>\n<p>Ingress\uff1a\u5c31\u662f\u4ece kuberenets \u96c6\u7fa4\u5916\u90e8\u8bbf\u95ee\u96c6\u7fa4\u7684\u4e00\u4e2a\u5165\u53e3\uff0c\u5c06\u5916\u90e8\u7684\u8bf7\u6c42\u8f6c\u53d1\u5230\u96c6\u7fa4\u5185\u4e0d\u540c\u7684 Service \u4e0a\uff0c\u5176\u5b9e\u5c31\u76f8\u5f53\u4e8e nginx\u3001haproxy \u7b49\u8d1f\u8f7d\u5747\u8861\u4ee3\u7406\u670d\u52a1\u5668\uff0c\u76ee\u524d\u9009\u62e9\u6709\u5f88\u591a\uff1a traefik\u3001nginx-controller\u3001Kubernetes Ingress Controller for Kong\u3001HAProxy Ingress controller\u3002<\/p>\n<h2>5. \u5b58\u50a8\u5bf9\u8c61<\/h2>\n<h3>PV\/PVC<\/h3>\n<ul>\n<li>PV \u7684\u5168\u79f0\u662f\uff1aPersistentVolume\uff08\u6301\u4e45\u5316\u5377\uff09\uff0c\u662f\u5bf9\u5e95\u5c42\u7684\u5171\u4eab\u5b58\u50a8\u7684\u4e00\u79cd\u62bd\u8c61\uff0cPV \u7531\u7ba1\u7406\u5458\u8fdb\u884c\u521b\u5efa\u548c\u914d\u7f6e\uff0c\u5b83\u548c\u5177\u4f53\u7684\u5e95\u5c42\u7684\u5171\u4eab\u5b58\u50a8\u6280\u672f\u7684\u5b9e\u73b0\u65b9\u5f0f\u6709\u5173\uff0c\u6bd4\u5982 Ceph\u3001GlusterFS\u3001NFS 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PV\uff0c\u4e0d\u518d\u9700\u8981\u624b\u52a8\u521b\u5efaPV\u3002<\/p>\n<h2>6. \u5176\u4ed6\u6982\u5ff5<\/h2>\n<h3>Helm<\/h3>\n<p>Helm\uff1a\u5305\u7ba1\u7406\u5de5\u5177\uff0c\u76f8\u5f53\u4e8ekubernetes\u73af\u5883\u4e0b\u7684yum\u5305\u7ba1\u7406\u5de5\u5177\u3002<\/p>\n<h3>CRD<\/h3>\n<p>CRD\u662f\u5bf9 Kubernetes API \u7684\u6269\u5c55\uff0cKubernetes \u4e2d\u7684\u6bcf\u4e2a\u8d44\u6e90\u90fd\u662f\u4e00\u4e2a API \u5bf9\u8c61\u7684\u96c6\u5408\uff0c\u4f8b\u5982\u6211\u4eec\u5728YAML\u6587\u4ef6\u91cc\u5b9a\u4e49\u7684\u90a3\u4e9bspec\u90fd\u662f\u5bf9 Kubernetes \u4e2d\u7684\u8d44\u6e90\u5bf9\u8c61\u7684\u5b9a\u4e49\uff0c\u6240\u6709\u7684\u81ea\u5b9a\u4e49\u8d44\u6e90\u53ef\u4ee5\u8ddf Kubernetes \u4e2d\u5185\u5efa\u7684\u8d44\u6e90\u4e00\u6837\u4f7f\u7528 kubectl \u64cd\u4f5c\u3002<\/p>\n<h3>Operator<\/h3>\n<p>Operator\u662f\u7531CoreOS\u516c\u53f8\u5f00\u53d1\u7684\uff0c\u7528\u6765\u6269\u5c55 Kubernetes API\uff0c\u7279\u5b9a\u7684\u5e94\u7528\u7a0b\u5e8f\u63a7\u5236\u5668\uff0c\u5b83\u7528\u6765\u521b\u5efa\u3001\u914d\u7f6e\u548c\u7ba1\u7406\u590d\u6742\u7684\u6709\u72b6\u6001\u5e94\u7528\uff0c\u5982\u6570\u636e\u5e93\u3001\u7f13\u5b58\u548c\u76d1\u63a7\u7cfb\u7edf\u3002Operator\u57fa\u4e8e Kubernetes \u7684\u8d44\u6e90\u548c\u63a7\u5236\u5668\u6982\u5ff5\u4e4b\u4e0a\u6784\u5efa\uff0c\u4f46\u540c\u65f6\u53c8\u5305\u542b\u4e86\u5e94\u7528\u7a0b\u5e8f\u7279\u5b9a\u7684\u4e00\u4e9b\u4e13\u4e1a\u77e5\u8bc6\uff0c\u6bd4\u5982\u521b\u5efa\u4e00\u4e2a\u6570\u636e\u5e93\u7684Operator\uff0c\u5219\u5fc5\u987b\u5bf9\u521b\u5efa\u7684\u6570\u636e\u5e93\u7684\u5404\u79cd\u8fd0\u7ef4\u65b9\u5f0f\u975e\u5e38\u4e86\u89e3\uff0c\u521b\u5efaOperator\u7684\u5173\u952e\u662fCRD\uff08\u81ea\u5b9a\u4e49\u8d44\u6e90\uff09\u7684\u8bbe\u8ba1\u3002Operator\u662f\u5c06\u8fd0\u7ef4\u4eba\u5458\u5bf9\u8f6f\u4ef6\u64cd\u4f5c\u7684\u77e5\u8bc6\u7ed9\u4ee3\u7801\u5316\uff0c\u540c\u65f6\u5229\u7528 Kubernetes 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\u4ec0\u4e48\u662fkubernetes\uff1f kubernetes\u662f\u4e00\u4e2a\u53ef\u79fb\u690d\u7684\uff0c\u53ef\u6269\u5c55\u7684\u5f00\u6e90\u5e73\u53f0\uff0c\u662fGoogle\u5f00\u6e90\u7684&hellip;","_links":{"self":[{"href":"http:\/\/www.weijing.co\/index.php?rest_route=\/wp\/v2\/posts\/1796"}],"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=1796"}],"version-history":[{"count":0,"href":"http:\/\/www.weijing.co\/index.php?rest_route=\/wp\/v2\/posts\/1796\/revisions"}],"wp:attachment":[{"href":"http:\/\/www.weijing.co\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1796"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.weijing.co\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1796"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.weijing.co\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1796"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}