{"id":1718,"date":"2021-08-02T15:41:34","date_gmt":"2021-08-02T07:41:34","guid":{"rendered":"https:\/\/egonlin.com\/?p=1718"},"modified":"2022-02-07T18:12:12","modified_gmt":"2022-02-07T10:12:12","slug":"k8s%e5%b8%b8%e8%a7%81%e9%9d%a2%e8%af%95%e9%a2%98","status":"publish","type":"post","link":"https:\/\/egonlin.com\/?p=1718","title":{"rendered":"k8s\u5e38\u89c1\u9762\u8bd5\u9898"},"content":{"rendered":"<h2>1\u3001\u4ec0\u4e48\u662fk8s\uff1f<\/h2>\n<pre><code class=\"language-bash\">    Kubenetes\u662f\u4e00\u4e2a\u9488\u5bf9\u5bb9\u5668\u5e94\u7528\uff0c\u8fdb\u884c\u81ea\u52a8\u90e8\u7f72\uff0c\u5f39\u6027\u4f38\u7f29\u548c\u7ba1\u7406\u7684\u5f00\u6e90\u7cfb\u7edf\u3002\u4e3b\u8981\u529f\u80fd\u662f\u751f\u4ea7\u73af\u5883\u4e2d\u7684\u5bb9\u5668\u7f16\u6392\u3002\n\n    K8S\u662fGoogle\u516c\u53f8\u63a8\u51fa\u7684\uff0c\u5b83\u6765\u6e90\u4e8e\u7531Google\u516c\u53f8\u5185\u90e8\u4f7f\u7528\u4e8615\u5e74\u7684Borg\u7cfb\u7edf\uff0c\u96c6\u7ed3\u4e86Borg\u7684\u7cbe\u534e\u3002\n\nk8s\u662f\u4e00\u4e2adocker\u96c6\u7fa4\u7684\u7ba1\u7406\u5de5\u5177 \nk8s\u662f\u5bb9\u5668\u7684\u7f16\u6392\u5de5\u5177<\/code><\/pre>\n<h2>2\u3001k8s\u7684\u6838\u5fc3\u529f\u80fd<\/h2>\n<h3>1.\u81ea\u6108<\/h3>\n<pre><code class=\"language-bash\">\u81ea\u6108:  \u91cd\u65b0\u542f\u52a8\u5931\u8d25\u7684\u5bb9\u5668\uff0c\u5728\u8282\u70b9\u4e0d\u53ef\u7528\u65f6\uff0c\u66ff\u6362\u548c\u91cd\u65b0\u8c03\u5ea6\u8282\u70b9\u4e0a\u7684\u5bb9\u5668\uff0c\u5bf9\u7528\u6237\u5b9a\u4e49\u7684\u5065\u5eb7\u68c0\u67e5\u4e0d\u54cd\u5e94\u7684\u5bb9\u5668\u4f1a\u88ab\u4e2d\u6b62\uff0c\u5e76\u4e14\u5728\u5bb9\u5668\u51c6\u5907\u597d\u670d\u52a1\u4e4b\u524d\u4e0d\u4f1a\u628a\u5176\u5411\u5ba2\u6237\u7aef\u5e7f\u64ad\u3002<\/code><\/pre>\n<h3>2.\u5f39\u6027\u4f38\u7f29<\/h3>\n<pre><code class=\"language-bash\">\u901a\u8fc7\u76d1\u63a7\u5bb9\u5668\u7684cpu\u7684\u8d1f\u8f7d\u503c,\u5982\u679c\u8fd9\u4e2a\u5e73\u5747\u9ad8\u4e8e80%,\u589e\u52a0\u5bb9\u5668\u7684\u6570\u91cf,\u5982\u679c\u8fd9\u4e2a\u5e73\u5747\u4f4e\u4e8e10%,\u51cf\u5c11\u5bb9\u5668\u7684\u6570\u91cf<\/code><\/pre>\n<h3>3.\u670d\u52a1\u7684\u81ea\u52a8\u53d1\u73b0\u548c\u8d1f\u8f7d\u5747\u8861<\/h3>\n<pre><code class=\"language-bash\">\u4e0d\u9700\u8981\u4fee\u6539\u60a8\u7684\u5e94\u7528\u7a0b\u5e8f\u6765\u4f7f\u7528\u4e0d\u719f\u6089\u7684\u670d\u52a1\u53d1\u73b0\u673a\u5236\uff0cKubernetes \u4e3a\u5bb9\u5668\u63d0\u4f9b\u4e86\u81ea\u5df1\u7684 IP \u5730\u5740\u548c\u4e00\u7ec4\u5bb9\u5668\u7684\u5355\u4e2a DNS \u540d\u79f0\uff0c\u5e76\u53ef\u4ee5\u5728\u5b83\u4eec\u4e4b\u95f4\u8fdb\u884c\u8d1f\u8f7d\u5747\u8861\u3002<\/code><\/pre>\n<h3>4.\u6eda\u52a8\u5347\u7ea7\u548c\u4e00\u952e\u56de\u6eda<\/h3>\n<pre><code class=\"language-bash\">Kubernetes \u9010\u6e10\u90e8\u7f72\u5bf9\u5e94\u7528\u7a0b\u5e8f\u6216\u5176\u914d\u7f6e\u7684\u66f4\u6539\uff0c\u540c\u65f6\u76d1\u89c6\u5e94\u7528\u7a0b\u5e8f\u8fd0\u884c\u72b6\u51b5\uff0c\u4ee5\u786e\u4fdd\u5b83\u4e0d\u4f1a\u540c\u65f6\u7ec8\u6b62\u6240\u6709\u5b9e\u4f8b\u3002 \u5982\u679c\u51fa\u73b0\u95ee\u9898\uff0cKubernetes\u4f1a\u4e3a\u60a8\u6062\u590d\u66f4\u6539\uff0c\u5229\u7528\u65e5\u76ca\u589e\u957f\u7684\u90e8\u7f72\u89e3\u51b3\u65b9\u6848\u7684\u751f\u6001\u7cfb\u7edf\u3002<\/code><\/pre>\n<h3>5.\u79c1\u5bc6\u914d\u7f6e\u6587\u4ef6\u7ba1\u7406<\/h3>\n<pre><code class=\"language-bash\">web\u5bb9\u5668\u91cc\u9762,\u6570\u636e\u5e93\u7684\u8d26\u6237\u5bc6\u7801(\u6d4b\u8bd5\u5e93\u5bc6\u7801)<\/code><\/pre>\n<h2>3\u3001k8s\u7684\u7ec4\u6210\uff1f<\/h2>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/egonlin.com\/wp-content\/uploads\/2021\/07\/1-32.png'><img class=\"lazyload lazyload-style-2\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  data-original=\"https:\/\/egonlin.com\/wp-content\/uploads\/2021\/07\/1-32.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" \/><\/div><\/p>\n<h3>1.Master\u8282\u70b9\uff08\u9ed8\u8ba4\u4e0d\u53c2\u52a0\u5de5\u4f5c\uff09<\/h3>\n<pre><code class=\"language-bash\">Kubectl\uff1a\n    \u5ba2\u6237\u7aef\u547d\u4ee4\u884c\u5de5\u5177\uff0c\u4f5c\u4e3a\u6574\u4e2aK8s\u96c6\u7fa4\u7684\u64cd\u4f5c\u5165\u53e3\uff1b\n\nApi Server\uff1a\n    \u5728K8s\u67b6\u6784\u4e2d\u627f\u62c5\u7684\u662f\u201c\u6865\u6881\u201d\u7684\u89d2\u8272\uff0c\u4f5c\u4e3a\u8d44\u6e90\u64cd\u4f5c\u7684\u552f\u4e00\u5165\u53e3\uff0c\u5b83\u63d0\u4f9b\u4e86\u8ba4\u8bc1\u3001\u6388\u6743\u3001\u8bbf\u95ee\u63a7\u5236\u3001API\u6ce8\u518c\u548c\u53d1\u73b0\u7b49\u673a\u5236\u3002\u5ba2\u6237\u7aef\u4e0ek8s\u7fa4\u96c6\u53caK8s\u5185\u90e8\u7ec4\u4ef6\u7684\u901a\u4fe1\uff0c\u90fd\u8981\u901a\u8fc7Api Server\u8fd9\u4e2a\u7ec4\u4ef6\uff1b\n\nController-manager\uff1a\n    \u8d1f\u8d23\u7ef4\u62a4\u7fa4\u96c6\u7684\u72b6\u6001\uff0c\u6bd4\u5982\u6545\u969c\u68c0\u6d4b\u3001\u81ea\u52a8\u6269\u5c55\u3001\u6eda\u52a8\u66f4\u65b0\u7b49\n\nScheduler\uff1a\n    \u8d1f\u8d23\u8d44\u6e90\u7684\u8c03\u5ea6\uff0c\u6309\u7167\u9884\u5b9a\u7684\u8c03\u5ea6\u7b56\u7565\u5c06pod\u8c03\u5ea6\u5230\u76f8\u5e94\u7684node\u8282\u70b9\u4e0a\uff1b<\/code><\/pre>\n<blockquote>\n<p>Etcd(\u53ef\u4ee5\u4e0d\u5728master\u8282\u70b9)\uff1a\u62c5\u4efb\u6570\u636e\u4e2d\u5fc3\u7684\u89d2\u8272\uff0c\u4fdd\u5b58\u4e86\u6574\u4e2a\u7fa4\u96c6\u7684\u72b6\u6001\uff1b<\/p>\n<\/blockquote>\n<h3>2.Node\u8282\u70b9<\/h3>\n<pre><code class=\"language-bash\">Kubelet\uff1a\n    \u8d1f\u8d23\u7ef4\u62a4\u5bb9\u5668\u7684\u751f\u547d\u5468\u671f\uff0c\u540c\u65f6\u4e5f\u8d1f\u8d23Volume\u548c\u7f51\u7edc\u7684\u7ba1\u7406\uff0c\u4e00\u822c\u8fd0\u884c\u5728\u6240\u6709\u7684\u8282\u70b9\uff0c\u662fNode\u8282\u70b9\u7684\u4ee3\u7406\uff0c\u5f53Scheduler\u786e\u5b9a\u67d0\u4e2anode\u4e0a\u8fd0\u884cpod\u4e4b\u540e\uff0c\u4f1a\u5c06pod\u7684\u5177\u4f53\u4fe1\u606f\uff08image\uff0cvolume\uff09\u7b49\u53d1\u9001\u7ed9\u8be5\u8282\u70b9\u7684kubelet\uff0ckubelet\u6839\u636e\u8fd9\u4e9b\u4fe1\u606f\u521b\u5efa\u548c\u8fd0\u884c\u5bb9\u5668\uff0c\u5e76\u5411master\u8fd4\u56de\u8fd0\u884c\u72b6\u6001\u3002\uff08\u81ea\u52a8\u4fee\u590d\u529f\u80fd\uff1a\u5982\u679c\u67d0\u4e2a\u8282\u70b9\u4e2d\u7684\u5bb9\u5668\u5b95\u673a\uff0c\u5b83\u4f1a\u5c1d\u8bd5\u91cd\u542f\u8be5\u5bb9\u5668\uff0c\u82e5\u91cd\u542f\u65e0\u6548\uff0c\u5219\u4f1a\u5c06\u8be5pod\u6740\u6b7b\uff0c\u7136\u540e\u91cd\u65b0\u521b\u5efa\u4e00\u4e2a\u5bb9\u5668\uff09\uff1b\n\nKube-proxy\uff1a\n    Service\u5728\u903b\u8f91\u4e0a\u4ee3\u8868\u4e86\u540e\u7aef\u7684\u591a\u4e2apod\u3002\u8d1f\u8d23\u4e3aService\u63d0\u4f9bcluster\u5185\u90e8\u7684\u670d\u52a1\u53d1\u73b0\u548c\u8d1f\u8f7d\u5747\u8861\uff08\u5916\u754c\u901a\u8fc7Service\u8bbf\u95eepod\u63d0\u4f9b\u7684\u670d\u52a1\u65f6\uff0cService\u63a5\u6536\u5230\u7684\u8bf7\u6c42\u540e\u5c31\u662f\u901a\u8fc7kube-proxy\u6765\u8f6c\u53d1\u5230pod\u4e0a\u7684\uff09\uff1b\n\ncontainer-runtime\uff1a\n    \u662f\u8d1f\u8d23\u7ba1\u7406\u8fd0\u884c\u5bb9\u5668\u7684\u8f6f\u4ef6\uff0c\u6bd4\u5982docker<\/code><\/pre>\n<h3>3.\u6269\u5c55\u7ec4\u4ef6<\/h3>\n<table>\n<thead>\n<tr>\n<th>\u7ec4\u4ef6\u540d\u79f0<\/th>\n<th>\u8bf4\u660e<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>kube-dns<\/strong><\/td>\n<td>\u8d1f\u8d23\u4e3a\u6574\u4e2a\u96c6\u7fa4\u63d0\u4f9bDNS\u670d\u52a1<\/td>\n<\/tr>\n<tr>\n<td><strong>Ingress Controller<\/strong><\/td>\n<td>\u4e3a\u670d\u52a1\u63d0\u4f9b\u5916\u7f51\u5165\u53e3<\/td>\n<\/tr>\n<tr>\n<td><strong>Heapster<\/strong><\/td>\n<td>\u63d0\u4f9b\u8d44\u6e90\u76d1\u63a7<\/td>\n<\/tr>\n<tr>\n<td><strong>Dashboard<\/strong><\/td>\n<td>\u63d0\u4f9bGUI<\/td>\n<\/tr>\n<tr>\n<td><strong>Federation<\/strong><\/td>\n<td>\u63d0\u4f9b\u8de8\u53ef\u7528\u533a\u7684\u96c6\u7fa4<\/td>\n<\/tr>\n<tr>\n<td><strong>Fluentd-elasticsearch<\/strong><\/td>\n<td>\u63d0\u4f9b\u96c6\u7fa4\u65e5\u5fd7\u91c7\u96c6\u3001\u5b58\u50a8\u4e0e\u67e5\u8be2<\/td>\n<\/tr>\n<tr>\n<td><strong>flannel<\/strong><\/td>\n<td>\u63d0\u4f9b\u96c6\u7fa4\u95f4\u7684\u7f51\u7edc<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>4\u3001\u8bf4\u51fa\u5bf9fannel\u7684\u4e86\u89e3<\/h2>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/egonlin.com\/wp-content\/uploads\/2021\/07\/2-29.png'><img class=\"lazyload lazyload-style-2\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  data-original=\"https:\/\/egonlin.com\/wp-content\/uploads\/2021\/07\/2-29.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" \/><\/div><\/p>\n<h3>1.\u529f\u80fd<\/h3>\n<pre><code class=\"language-bash\">    \u8ba9\u96c6\u7fa4\u4e2d\u7684\u4e0d\u540c\u8282\u70b9\u4e3b\u673a\u521b\u5efa\u7684Docker\u5bb9\u5668\u90fd\u5177\u6709\u5168\u96c6\u7fa4\u552f\u4e00\u7684\u865a\u62dfIP\u5730\u5740\u3002\u4f46\u5728\u9ed8\u8ba4\u7684Docker\u914d\u7f6e\u4e2d\uff0c\u6bcf\u4e2aNode\u7684Docker\u670d\u52a1\u4f1a\u5206\u522b\u8d1f\u8d23\u6240\u5728\u8282\u70b9\u5bb9\u5668\u7684IP\u5206\u914d\u3002Node\u5185\u90e8\u5f97\u5bb9\u5668\u4e4b\u95f4\u53ef\u4ee5\u76f8\u4e92\u8bbf\u95ee,\u4f46\u662f\u8de8\u4e3b\u673a(Node)\u7f51\u7edc\u76f8\u4e92\u95f4\u662f\u4e0d\u80fd\u901a\u4fe1\u3002Flannel\u8bbe\u8ba1\u76ee\u7684\u5c31\u662f\u4e3a\u96c6\u7fa4\u4e2d\u6240\u6709\u8282\u70b9\u91cd\u65b0\u89c4\u5212IP\u5730\u5740\u7684\u4f7f\u7528\u89c4\u5219\uff0c\u4ece\u800c\u4f7f\u5f97\u4e0d\u540c\u8282\u70b9\u4e0a\u7684\u5bb9\u5668\u80fd\u591f\u83b7\u5f97&quot;\u540c\u5c5e\u4e00\u4e2a\u5185\u7f51&quot;\u4e14&quot;\u4e0d\u91cd\u590d\u7684&quot;IP\u5730\u5740\uff0c\u5e76\u8ba9\u5c5e\u4e8e\u4e0d\u540c\u8282\u70b9\u4e0a\u7684\u5bb9\u5668\u80fd\u591f\u76f4\u63a5\u901a\u8fc7\u5185\u7f51IP\u901a\u4fe1\u3002<\/code><\/pre>\n<h3>2.\u539f\u7406<\/h3>\n<pre><code class=\"language-bash\">    Flannel \u4f7f\u7528etcd\u5b58\u50a8\u914d\u7f6e\u6570\u636e\u548c\u5b50\u7f51\u5206\u914d\u4fe1\u606f\u3002flannel \u542f\u52a8\u4e4b\u540e\uff0c\u540e\u53f0\u8fdb\u7a0b\u9996\u5148\u68c0\u7d22\u914d\u7f6e\u548c\u6b63\u5728\u4f7f\u7528\u7684\u5b50\u7f51\u5217\u8868\uff0c\u7136\u540e\u9009\u62e9\u4e00\u4e2a\u53ef\u7528\u7684\u5b50\u7f51\uff0c\u7136\u540e\u5c1d\u8bd5\u53bb\u6ce8\u518c\u5b83\u3002etcd\u4e5f\u5b58\u50a8\u8fd9\u4e2a\u6bcf\u4e2a\u4e3b\u673a\u5bf9\u5e94\u7684ip\u3002flannel \u4f7f\u7528etcd\u7684watch\u673a\u5236\u76d1\u89c6\/coreos.com\/network\/subnets\u4e0b\u9762\u6240\u6709\u5143\u7d20\u7684\u53d8\u5316\u4fe1\u606f\uff0c\u5e76\u4e14\u6839\u636e\u5b83\u6765\u7ef4\u62a4\u4e00\u4e2a\u8def\u7531\u8868\u3002\u4e3a\u4e86\u63d0\u9ad8\u6027\u80fd\uff0cflannel\u4f18\u5316\u4e86Universal TAP\/TUN\u8bbe\u5907\uff0c\u5bf9TUN\u548cUDP\u4e4b\u95f4\u7684ip\u5206\u7247\u505a\u4e86\u4ee3\u7406\u3002<\/code><\/pre>\n<h3>3.\u5de5\u4f5c\u6d41\u7a0b<\/h3>\n<pre><code class=\"language-bash\">    1\u3001\u6570\u636e\u4ece\u6e90\u5bb9\u5668\u4e2d\u53d1\u51fa\u540e\uff0c\u7ecf\u7531\u6240\u5728\u4e3b\u673a\u7684docker0\u865a\u62df\u7f51\u5361\u8f6c\u53d1\u5230flannel0\u865a\u62df\u7f51\u5361\uff0c\u8fd9\u662f\u4e2aP2P\u7684\u865a\u62df\u7f51\u5361\uff0cflanneld\u670d\u52a1\u76d1\u542c\u5728\u7f51\u5361\u7684\u53e6\u5916\u4e00\u7aef\u3002\n\n    2\u3001Flannel\u901a\u8fc7Etcd\u670d\u52a1\u7ef4\u62a4\u4e86\u4e00\u5f20\u8282\u70b9\u95f4\u7684\u8def\u7531\u8868\uff0c\u8be5\u5f20\u8868\u91cc\u4fdd\u5b58\u4e86\u5404\u4e2a\u8282\u70b9\u4e3b\u673a\u7684\u5b50\u7f51\u7f51\u6bb5\u4fe1\u606f\u3002\n\n    3\u3001\u6e90\u4e3b\u673a\u7684flanneld\u670d\u52a1\u5c06\u539f\u672c\u7684\u6570\u636e\u5185\u5bb9UDP\u5c01\u88c5\u540e\u6839\u636e\u81ea\u5df1\u7684\u8def\u7531\u8868\u6295\u9012\u7ed9\u76ee\u7684\u8282\u70b9\u7684flanneld\u670d\u52a1\uff0c\u6570\u636e\u5230\u8fbe\u4ee5\u540e\u88ab\u89e3\u5305\uff0c\u7136\u540e\u76f4\u63a5\u8fdb\u5165\u76ee\u7684\u8282\u70b9\u7684flannel0\u865a\u62df\u7f51\u5361\uff0c\u7136\u540e\u88ab\u8f6c\u53d1\u5230\u76ee\u7684\u4e3b\u673a\u7684docker0\u865a\u62df\u7f51\u5361\uff0c\u6700\u540e\u5c31\u50cf\u672c\u673a\u5bb9\u5668\u901a\u4fe1\u4e00\u6837\u7684\u7531docker0\u8def\u7531\u5230\u8fbe\u76ee\u6807\u5bb9\u5668\u3002<\/code><\/pre>\n<h2>5\u3001\u8bf4\u4e00\u4e0b\u4f60\u5bf9fannel\u548ccalico\u4e86\u89e3\u53ca\u533a\u522b\uff1f<\/h2>\n<p><strong>Flannel<\/strong><\/p>\n<pre><code class=\"language-bash\">    \u7531CoreOS\u5f00\u53d1\u7684\u9879\u76eeFlannel\uff0c\u53ef\u80fd\u662f\u6700\u76f4\u63a5\u548c\u6700\u53d7\u6b22\u8fce\u7684CNI\u63d2\u4ef6\u3002\u5b83\u662f\u5bb9\u5668\u7f16\u6392\u7cfb\u7edf\u4e2d\u6700\u6210\u719f\u7684\u7f51\u7edc\u7ed3\u6784\u793a\u4f8b\u4e4b\u4e00\uff0c\u65e8\u5728\u5b9e\u73b0\u66f4\u597d\u7684\u5bb9\u5668\u95f4\u548c\u4e3b\u673a\u95f4\u7f51\u7edc\u3002\u968f\u7740CNI\u6982\u5ff5\u7684\u5174\u8d77\uff0cFlannel CNI\u63d2\u4ef6\u7b97\u662f\u65e9\u671f\u7684\u5165\u95e8\u3002<\/code><\/pre>\n<p>1\uff09\u5b89\u88c5\u7b80\u5355\uff0c\u4e0d\u9700\u8981\u4e13\u95e8\u7684\u6570\u636e\u5b58\u50a8<\/p>\n<pre><code class=\"language-bash\">    Flannel\u76f8\u5bf9\u5bb9\u6613\u5b89\u88c5\u548c\u914d\u7f6e\u3002\u5b83\u88ab\u6253\u5305\u4e3a\u5355\u4e2a\u4e8c\u8fdb\u5236\u6587\u4ef6flanneld\uff0c\u8bb8\u591a\u5e38\u89c1\u7684Kubernetes\u96c6\u7fa4\u90e8\u7f72\u5de5\u5177\u548c\u8bb8\u591aKubernetes\u53d1\u884c\u7248\u90fd\u53ef\u4ee5\u9ed8\u8ba4\u5b89\u88c5Flannel\u3002Flannel\u53ef\u4ee5\u4f7f\u7528Kubernetes\u96c6\u7fa4\u7684\u73b0\u6709etcd\u96c6\u7fa4\u6765\u4f7f\u7528API\u5b58\u50a8\u5176\u72b6\u6001\u4fe1\u606f\uff0c\u56e0\u6b64\u4e0d\u9700\u8981\u4e13\u7528\u7684\u6570\u636e\u5b58\u50a8\u3002<\/code><\/pre>\n<pre><code class=\"language-bash\">    Flannel\u914d\u7f6e\u7b2c3\u5c42IPv4 overlay\u7f51\u7edc\u3002\u5b83\u4f1a\u521b\u5efa\u4e00\u4e2a\u5927\u578b\u5185\u90e8\u7f51\u7edc\uff0c\u8de8\u8d8a\u96c6\u7fa4\u4e2d\u6bcf\u4e2a\u8282\u70b9\u3002\u5728\u6b64overlay\u7f51\u7edc\u4e2d\uff0c\u6bcf\u4e2a\u8282\u70b9\u90fd\u6709\u4e00\u4e2a\u5b50\u7f51\uff0c\u7528\u4e8e\u5728\u5185\u90e8\u5206\u914dIP\u5730\u5740\u3002\u5728\u914d\u7f6epod\u65f6\uff0c\u6bcf\u4e2a\u8282\u70b9\u4e0a\u7684Docker\u6865\u63a5\u53e3\u90fd\u4f1a\u4e3a\u6bcf\u4e2a\u65b0\u5bb9\u5668\u5206\u914d\u4e00\u4e2a\u5730\u5740\u3002\u540c\u4e00\u4e3b\u673a\u4e2d\u7684Pod\u53ef\u4ee5\u4f7f\u7528Docker\u6865\u63a5\u8fdb\u884c\u901a\u4fe1\uff0c\u800c\u4e0d\u540c\u4e3b\u673a\u4e0a\u7684pod\u4f1a\u4f7f\u7528flanneld\u5c06\u5176\u6d41\u91cf\u5c01\u88c5\u5728UDP\u6570\u636e\u5305\u4e2d\uff0c\u4ee5\u4fbf\u8def\u7531\u5230\u9002\u5f53\u7684\u76ee\u6807\u3002<\/code><\/pre>\n<pre><code class=\"language-bash\">    Flannel\u6709\u51e0\u79cd\u4e0d\u540c\u7c7b\u578b\u7684\u540e\u7aef\u53ef\u7528\u4e8e\u5c01\u88c5\u548c\u8def\u7531\u3002\u9ed8\u8ba4\u548c\u63a8\u8350\u7684\u65b9\u6cd5\u662f\u4f7f\u7528VXLAN\uff0c\u56e0\u4e3aVXLAN\u6027\u80fd\u66f4\u826f\u597d\u5e76\u4e14\u9700\u8981\u7684\u624b\u52a8\u5e72\u9884\u66f4\u5c11\u3002<\/code><\/pre>\n<pre><code class=\"language-bash\">    \u603b\u7684\u6765\u8bf4\uff0cFlannel\u662f\u5927\u591a\u6570\u7528\u6237\u7684\u4e0d\u9519\u9009\u62e9\u3002\u4ece\u7ba1\u7406\u89d2\u5ea6\u6765\u770b\uff0c\u5b83\u63d0\u4f9b\u4e86\u4e00\u4e2a\u7b80\u5355\u7684\u7f51\u7edc\u6a21\u578b\uff0c\u7528\u6237\u53ea\u9700\u8981\u4e00\u4e9b\u57fa\u7840\u77e5\u8bc6\uff0c\u5c31\u53ef\u4ee5\u8bbe\u7f6e\u9002\u5408\u5927\u591a\u6570\u7528\u4f8b\u7684\u73af\u5883\u3002\u4e00\u822c\u6765\u8bf4\uff0c\u5728\u521d\u671f\u4f7f\u7528Flannel\u662f\u4e00\u4e2a\u7a33\u59a5\u5b89\u5168\u7684\u9009\u62e9\uff0c\u76f4\u5230\u4f60\u5f00\u59cb\u9700\u8981\u4e00\u4e9b\u5b83\u65e0\u6cd5\u63d0\u4f9b\u7684\u4e1c\u897f\u3002<\/code><\/pre>\n<p><strong>Calico<\/strong><\/p>\n<p>1\uff09\u529f\u80fd\u5168\u9762\u3001\u7075\u6d3b\u6027\u9ad8\u3002<\/p>\n<pre><code class=\"language-bash\">    Calico\u662fKubernetes\u751f\u6001\u7cfb\u7edf\u4e2d\u53e6\u4e00\u79cd\u6d41\u884c\u7684\u7f51\u7edc\u9009\u62e9\u3002\u867d\u7136Flannel\u88ab\u516c\u8ba4\u4e3a\u662f\u6700\u7b80\u5355\u7684\u9009\u62e9\uff0c\u4f46Calico\u4ee5\u5176\u6027\u80fd\u3001\u7075\u6d3b\u6027\u800c\u95fb\u540d\u3002Calico\u7684\u529f\u80fd\u66f4\u4e3a\u5168\u9762\uff0c\u4e0d\u4ec5\u63d0\u4f9b\u4e3b\u673a\u548cpod\u4e4b\u95f4\u7684\u7f51\u7edc\u8fde\u63a5\uff0c\u8fd8\u6d89\u53ca\u7f51\u7edc\u5b89\u5168\u548c\u7ba1\u7406\u3002Calico CNI\u63d2\u4ef6\u5728CNI\u6846\u67b6\u5185\u5c01\u88c5\u4e86Calico\u7684\u529f\u80fd\u3002<\/code><\/pre>\n<p>2\uff09\u4e0d\u9700\u8981\u989d\u5916\u7684NAT\u3001\u96a7\u9053\u6216\u8005Overlay Network\uff0c\u6ca1\u6709\u989d\u5916\u7684\u5c01\u5305\u89e3\u5305\uff0c\u80fd\u591f\u8282\u7ea6CPU\u8fd0\u7b97\uff0c\u63d0\u9ad8\u7f51\u7edc\u6548\u7387\u3002<\/p>\n<pre><code class=\"language-bash\">    \u5b83\u521b\u5efa\u7684\u7f51\u7edc\u73af\u5883\u5177\u6709\u7b80\u5355\u548c\u590d\u6742\u7684\u5c5e\u6027\u3002\u4e0eFlannel\u4e0d\u540c\uff0cCalico\u4e0d\u4f7f\u7528overlay\u7f51\u7edc\u3002\u76f8\u53cd\uff0cCalico\u914d\u7f6e\u7b2c3\u5c42\u7f51\u7edc\uff0c\u8be5\u7f51\u7edc\u4f7f\u7528BGP\u8def\u7531\u534f\u8bae\u5728\u4e3b\u673a\u4e4b\u95f4\u8def\u7531\u6570\u636e\u5305\u3002\u8fd9\u610f\u5473\u7740\u5728\u4e3b\u673a\u4e4b\u95f4\u79fb\u52a8\u65f6\uff0c\u4e0d\u9700\u8981\u5c06\u6570\u636e\u5305\u5305\u88c5\u5728\u989d\u5916\u7684\u5c01\u88c5\u5c42\u4e2d\u3002BGP\u8def\u7531\u673a\u5236\u53ef\u4ee5\u672c\u5730\u5f15\u5bfc\u6570\u636e\u5305\uff0c\u800c\u65e0\u9700\u989d\u5916\u5728\u6d41\u91cf\u5c42\u4e2d\u6253\u5305\u6d41\u91cf\u3002<\/code><\/pre>\n<p>3\uff09\u6709\u6807\u51c6\u7684\u8c03\u8bd5\u5de5\u5177\uff0c\u65b9\u4fbf\u6392\u9519<\/p>\n<pre><code class=\"language-bash\">\u9664\u4e86\u6027\u80fd\u4f18\u52bf\u4e4b\u5916\uff0c\u5728\u51fa\u73b0\u7f51\u7edc\u95ee\u9898\u65f6\uff0c\u7528\u6237\u8fd8\u53ef\u4ee5\u7528\u66f4\u5e38\u89c4\u7684\u65b9\u6cd5\u8fdb\u884c\u6545\u969c\u6392\u9664\u3002\u867d\u7136\u4f7f\u7528VXLAN\u7b49\u6280\u672f\u8fdb\u884c\u5c01\u88c5\u4e5f\u662f\u4e00\u4e2a\u4e0d\u9519\u7684\u89e3\u51b3\u65b9\u6848\uff0c\u4f46\u8be5\u8fc7\u7a0b\u5904\u7406\u6570\u636e\u5305\u7684\u65b9\u5f0f\u540c\u573a\u96be\u4ee5\u8ffd\u8e2a\u3002\u4f7f\u7528Calico\uff0c\u6807\u51c6\u8c03\u8bd5\u5de5\u5177\u53ef\u4ee5\u8bbf\u95ee\u4e0e\u7b80\u5355\u73af\u5883\u4e2d\u76f8\u540c\u7684\u4fe1\u606f\uff0c\u4ece\u800c\u4f7f\u66f4\u591a\u5f00\u53d1\u4eba\u5458\u548c\u7ba1\u7406\u5458\u66f4\u5bb9\u6613\u7406\u89e3\u884c\u4e3a\u3002<\/code><\/pre>\n<p><strong>\u603b\u7ed3<\/strong><\/p>\n<pre><code class=\"language-bash\">    \u4e24\u8005\u90fd\u5c5e\u4e8ek8s\u7f51\u7edc\u63d2\u4ef6\u3002\u6211\u4eec\u516c\u53f8\u4f7f\u7528\u7684\u662fflannel, calico\u6027\u80fd\u66f4\u597d\u4e5f\u66f4\u7075\u6d3b\uff0c\u4f46\u662fflannel\u66f4\u52a0\u7b80\u5355\u597d\u7528\uff0c\u5f53\u516c\u53f8\u7531\u4e8c\u6b21\u5f00\u53d1kubernetes\u7684\u573a\u666f\u65f6\uff0c\u5efa\u8bae\u4f7f\u7528calico\uff0c\u5f53\u6709IPV6\u4f7f\u7528\u573a\u666f\u65f6\uff0c\u5fc5\u987b\u4f7f\u7528calico\u3002<\/code><\/pre>\n<h2>6\u3001kubectl\u8fd9\u4e2a\u547d\u4ee4\u6267\u884c\u7684\u8fc7\u7a0b\uff1f(\u4ee5\u90e8\u7f72nginx\u670d\u52a1\u4e3a\u4f8b)<\/h2>\n<pre><code class=\"language-bash\">1\u3001kubectl\u53d1\u9001\u4e86\u4e00\u4e2a\u90e8\u7f72nginx\u7684\u4efb\u52a1\n2\u3001\u8fdb\u5165Master\u8282\u70b9\uff0c\u8fdb\u884c\u5b89\u5168\u8ba4\u8bc1\uff0c\n3\u3001\u8ba4\u8bc1\u901a\u8fc7\u540e\uff0cAPIserver\u63a5\u53d7\u6307\u4ee4\n4\u3001\u5c06\u90e8\u7f72\u7684\u547d\u4ee4\u6570\u636e\u8bb0\u5f55\u5230etcd\u4e2d\n5\u3001APIserver\u518d\u8bfb\u53d6etcd\u4e2d\u7684\u547d\u4ee4\u6570\u636e\n6\u3001APIserver\u627e\u5230scheduler\uff08\u8c03\u5ea6\u5668\uff09\uff0c\u8bf4\u8981\u90e8\u7f72nginx\n7\u3001scheduler\uff08\u8c03\u5ea6\u5668\uff09\u627eAPIserver\u8c03\u53d6\u5de5\u4f5c\u8282\u70b9\u6570\u636e\u3002\n8\u3001APIserver\u8c03\u53d6etcd\u4e2d\u5b58\u50a8\u7684\u6570\u636e\uff0c\u5e76\u5c06\u6570\u636e\u53d1\u7ed9scheduler\u3002\n9\u3001scheduler\u901a\u8fc7\u8ba1\u7b97\uff0c\u6bd4\u8f83\u627e\u5230\u9002\u5408\u90e8\u7f72nginx\u7684\u6700\u4f73\u8282\u70b9\u662fnode1\uff0c\u53d1\u9001\u7ed9APIserver\u3002\n10\u3001APIserver\u5c06\u8981\u90e8\u7f72\u5728node1\u7684\u8ba1\u5212\u5b58\u50a8\u5230etcd\u4e2d\u3002\n11\u3001APIserver\u8bfb\u53d6etcd\u4e2d\u7684\u90e8\u7f72\u8ba1\u5212\uff0c\u901a\u77e5node1\u8282\u70b9\u7684kubelet\u90e8\u7f72\u5bb9\u5668\n12\u3001kubelet\u6839\u636e\u6307\u4ee4\u90e8\u7f72nginx\u5bb9\u5668\uff0ckube-proxy\u4e3anginx\u5bb9\u5668\u521b\u5efa\u7f51\u6865\n13\u3001\u5bb9\u5668\u7f51\u6865\u90e8\u7f72\u5b8c\u6210\u540e\uff0ckubelet\u901a\u77e5APIserver\u90e8\u7f72\u5de5\u4f5c\u5b8c\u6210\u3002\n14\u3001APIserver\u5c06\u90e8\u7f72\u72b6\u6001\u5b58\u50a8\u5230etcd\u5f53\u4e2d\uff0c\u540c\u65f6\u901a\u77e5controller manager(\u63a7\u5236\u5668\uff09\u6709\u65b0\u6d3b\u4e86\n15\u3001controller manager\u5411APIserver\u8981\u9700\u8981\u76d1\u63a7\u5bb9\u5668\u7684\u6570\u636e\n16\u3001APIserver\u627eetcd\u8bfb\u53d6\u76f8\u5e94\u6570\u636e\uff0c\u540c\u65f6\u901a\u77e5kubelet\u8981\u6e90\u6e90\u4e0d\u65ad\u53d1\u9001\u76d1\u63a7\u7684\u6570\u636e\n17\u3001APIserver\u5c06kubelet\u53d1\u9001\u6765\u7684\u6570\u636e\u5b58\u50a8\u5230etcd\u5f53\u4e2d\n18\u3001APIserver\u5c06etcd\u7684\u6570\u636e\u8fd4\u56de\u7ed9controller manager\n19\u3001controller manager\u6839\u636e\u6570\u636e\u8ba1\u7b97\u5224\u65ad\u5bb9\u5668\u662f\u5426\u5b58\u5728\u6216\u5065\u5eb7<\/code><\/pre>\n<h2>7\u3001\u5bb9\u5668\u548c\u4e3b\u673a\u90e8\u7f72\u5e94\u7528\u7684\u533a\u522b\u662f\u4ec0\u4e48\uff1f<\/h2>\n<pre><code class=\"language-bash\">    \u5bb9\u5668\u7684\u4e2d\u5fc3\u601d\u60f3\u5c31\u662f\u79d2\u7ea7\u542f\u52a8\uff1b\u4e00\u6b21\u5c01\u88c5\u3001\u5230\u5904\u8fd0\u884c\uff1b\u8fd9\u662f\u4e3b\u673a\u90e8\u7f72\u5e94\u7528\u65e0\u6cd5\u8fbe\u5230\u7684\u6548\u679c\uff0c\u4f46\u540c\u65f6\u4e5f\u66f4\u5e94\u8be5\u6ce8\u91cd\u5bb9\u5668\u7684\u6570\u636e\u6301\u4e45\u5316\u95ee\u9898\u3002\n\n    \u53e6\u5916\uff0c\u5bb9\u5668\u90e8\u7f72\u53ef\u4ee5\u5c06\u5404\u4e2a\u670d\u52a1\u8fdb\u884c\u9694\u79bb\uff0c\u4e92\u4e0d\u5f71\u54cd\uff0c\u8fd9\u4e5f\u662f\u5bb9\u5668\u7684\u53e6\u4e00\u4e2a\u6838\u5fc3\u6982\u5ff5\u3002<\/code><\/pre>\n<h2>8\u3001\u8bf4\u4e00\u4e0bpod\u7684\u751f\u547d\u5468\u671f\uff1f<\/h2>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/egonlin.com\/wp-content\/uploads\/2021\/07\/pod\u751f\u547d\u5468\u671f-1.png'><img class=\"lazyload lazyload-style-2\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  data-original=\"https:\/\/egonlin.com\/wp-content\/uploads\/2021\/07\/pod\u751f\u547d\u5468\u671f-1.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" \/><\/div><\/p>\n<pre><code class=\"language-bash\">1\u3001\u542f\u52a8\u5305\u62ec\u521d\u59cb\u5316\u5bb9\u5668\u7684\u4efb\u4f55\u5bb9\u5668\u4e4b\u524d\u5148\u521b\u5efapause\u57fa\u7840\u5bb9\u5668\uff0c\u5b83\u521d\u59cb\u5316Pod\u73af\u5883\u5e76\u4e3a\u540e\u7eed\u52a0\u5165\u7684\u5bb9\u5668\u63d0\u4f9b\u5171\u4eab\u7684\u540d\u79f0\u7a7a\u95f4\u3002\n2\u3001\u6309\u987a\u5e8f\u4ee5\u4e32\u884c\u7684\u65b9\u5f0f\u8fd0\u884c\u7528\u6237\u5b9a\u4e49\u7684\u5404\u4e2a\u521d\u59cb\u5316\u5bb9\u5668\u8fdb\u884cPod\u73af\u5883\u521d\u59cb\u5316\uff1b\u4efb\u4f55\u4e00\u4e2a\u521d\u59cb\u5316\u5bb9\u5668\u8fd0\u884c\u5931\u8d25\u90fd\u5c06\u5bfc\u81f4Pod\u521b\u5efa\u5931\u8d25\uff0c\u5e76\u6309\u5176restartPolicy\u7684\u7b56\u7565\u8fdb\u884c\u5904\u7406\uff0c\u9ed8\u8ba4\u4e3a\u91cd\u542f\u3002\n3\u3001\u7b49\u5f85\u6240\u6709\u5bb9\u5668\u521d\u59cb\u5316\u6210\u529f\u5b8c\u6210\u540e\uff0c\u542f\u52a8\u4e1a\u52a1\u5bb9\u5668\uff0c\u591a\u5bb9\u5668Pod\u73af\u5883\u4e2d\uff0c\u6b64\u6b65\u9aa4\u4f1a\u5e76\u884c\u542f\u52a8\u6240\u6709\u4e1a\u52a1\u5bb9\u5668\u3002\u4ed6\u4eec\u5404\u81ea\u6309\u5176\u81ea\u5b9a\u4e49\u5c55\u5f00\u5176\u751f\u547d\u5468\u671f\uff1b\u5bb9\u5668\u542f\u52a8\u7684\u90a3\u4e00\u523b\u4f1a\u540c\u65f6\u8fd0\u884c\u4e1a\u52a1\u5bb9\u5668\u4e0a\u5b9a\u4e49\u7684PostStart\u94a9\u5b50\u4e8b\u4ef6\uff0c\u8be5\u6b65\u9aa4\u5931\u8d25\u5c06\u5bfc\u81f4\u76f8\u5173\u5bb9\u5668\u88ab\u91cd\u542f\u3002\n4\u3001\u8fd0\u884c\u5bb9\u5668\u542f\u52a8\u5065\u5eb7\u72b6\u6001\u76d1\u6d4b\uff08startupProbe\uff09\uff0c\u5224\u65ad\u5bb9\u5668\u662f\u5426\u542f\u52a8\u6210\u529f\uff1b\u8be5\u6b65\u9aa4\u5931\u8d25\uff0c\u540c\u6837\u53c2\u7167restartPolicy\u5b9a\u4e49\u7684\u7b56\u7565\u8fdb\u884c\u5904\u7406\uff1b\u672a\u5b9a\u4e49\u65f6\uff0c\u9ed8\u8ba4\u72b6\u6001\u4e3aSuccess\u3002\n5\u3001\u5bb9\u5668\u542f\u52a8\u6210\u529f\u540e\uff0c\u5b9a\u671f\u8fdb\u884c\u5b58\u6d3b\u72b6\u6001\u76d1\u6d4b\uff08liveness\uff09\u548c\u5c31\u7eea\u72b6\u6001\u76d1\u6d4b\uff08readiness\uff09\uff1b\u5b58\u6d3b\u76d1\u6d4b\u72b6\u6001\u5931\u8d25\u5c06\u5bfc\u81f4\u5bb9\u5668\u91cd\u542f\uff0c\u800c\u5c31\u7eea\u72b6\u6001\u76d1\u6d4b\u5931\u8d25\u4f1a\u662f\u7684\u8be5\u5bb9\u5668\u4ece\u5176\u6240\u5c5e\u7684Service\u5bf9\u8c61\u7684\u53ef\u7528\u7aef\u70b9\u5217\u8868\u4e2d\u79fb\u9664\u3002\n6\u3001\u7ec8\u6b62Pod\u5bf9\u8c61\u65f6\uff0c\u4f1a\u60f3\u8fd0\u884cpreStop\u94a9\u5b50\u4e8b\u4ef6\uff0c\u5e76\u5728\u5bbd\u9650\u671f\uff08termiunationGracePeriodSeconds\uff09\u7ed3\u675f\u540e\u7ec8\u6b62\u4e3b\u5bb9\u5668\uff0c\u5bbd\u9650\u671f\u9ed8\u8ba4\u4e3a30\u79d2\u3002\n\n#\u7b80\u8ff0\n1\u3001\u521b\u5efapod\uff0c\u5e76\u8c03\u5ea6\u5230\u5408\u9002\u8282\u70b9\n2\u3001\u521b\u5efapause\u57fa\u7840\u5bb9\u5668\uff0c\u63d0\u4f9b\u5171\u4eab\u540d\u79f0\u7a7a\u95f4\n3\u3001\u4e32\u884c\u4e1a\u52a1\u5bb9\u5668\u5bb9\u5668\u521d\u59cb\u5316\n4\u3001\u542f\u52a8\u4e1a\u52a1\u5bb9\u5668\uff0c\u542f\u52a8\u90a3\u4e00\u523b\u4f1a\u540c\u65f6\u8fd0\u884c\u4e3b\u5bb9\u5668\u4e0a\u5b9a\u4e49\u7684Poststart\u94a9\u5b50\u4e8b\u4ef6\n5\u3001\u5065\u5eb7\u72b6\u6001\u76d1\u6d4b\uff0c\u5224\u65ad\u5bb9\u5668\u662f\u5426\u542f\u52a8\u6210\u529f\n6\u3001\u6301\u7eed\u5b58\u6d3b\u72b6\u6001\u76d1\u6d4b\u3001\u5c31\u7eea\u72b6\u6001\u76d1\u6d4b\n7\u3001\u7ed3\u675f\u65f6\uff0c\u6267\u884cprestop\u94a9\u5b50\u4e8b\u4ef6\n8\u3001\u7ec8\u6b62\u5bb9\u5668<\/code><\/pre>\n<h2>9\u3001\u63cf\u8ff0\u4e00\u4e0bpod\u7684\u751f\u547d\u5468\u671f\u6709\u54ea\u4e9b\u72b6\u6001\uff1f<\/h2>\n<pre><code class=\"language-bash\">Pending\uff1a\u8868\u793apod\u5df2\u7ecf\u88ab\u540c\u610f\u521b\u5efa\uff0c\u6b63\u5728\u7b49\u5f85kube-scheduler\u9009\u62e9\u5408\u9002\u7684\u8282\u70b9\u521b\u5efa\uff0c\u4e00\u822c\u662f\u5728\u51c6\u5907\u955c\u50cf\uff1b\n\nRunning\uff1a\u8868\u793apod\u4e2d\u6240\u6709\u7684\u5bb9\u5668\u5df2\u7ecf\u88ab\u521b\u5efa\uff0c\u5e76\u4e14\u81f3\u5c11\u6709\u4e00\u4e2a\u5bb9\u5668\u6b63\u5728\u8fd0\u884c\u6216\u8005\u662f\u6b63\u5728\u542f\u52a8\u6216\u8005\u662f\u6b63\u5728\u91cd\u542f\uff1b\n\nSucceeded\uff1a\u8868\u793a\u6240\u6709\u5bb9\u5668\u5df2\u7ecf\u6210\u529f\u7ec8\u6b62\uff0c\u5e76\u4e14\u4e0d\u4f1a\u518d\u542f\u52a8\uff1b\n\nFailed\uff1a\u8868\u793apod\u4e2d\u6240\u6709\u5bb9\u5668\u90fd\u662f\u975e0\uff08\u4e0d\u6b63\u5e38\uff09\u72b6\u6001\u9000\u51fa\uff1b\n\nUnknown\uff1a\u8868\u793a\u65e0\u6cd5\u8bfb\u53d6Pod\u72b6\u6001\uff0c\u901a\u5e38\u662fkube-controller-manager\u65e0\u6cd5\u4e0ePod\u901a\u4fe1\u3002<\/code><\/pre>\n<h2>10\u3001\u8bf4\u4e00\u4e0bPostStart\u3001PreStop\u94a9\u5b50\uff1f<\/h2>\n<pre><code class=\"language-bash\">    PostStart :\u5728\u5bb9\u5668\u521b\u5efa\u540e\u7acb\u5373\u6267\u884c\u3002\u4f46\u662f\uff0c\u5e76\u4e0d\u80fd\u4fdd\u8bc1\u94a9\u5b50\u5c06\u5728\u5bb9\u5668ENTRYPOINT\u4e4b\u524d\u8fd0\u884c\uff0c\u56e0\u4e3a\u6ca1\u6709\u53c2\u6570\u4f20\u9012\u7ed9\u5904\u7406\u7a0b\u5e8f\u3002 \u4e3b\u8981\u7528\u4e8e\u8d44\u6e90\u90e8\u7f72\u3001\u73af\u5883\u51c6\u5907\u7b49\u3002\u4e0d\u8fc7\u9700\u8981\u6ce8\u610f\u7684\u662f\u5982\u679c\u94a9\u5b50\u82b1\u8d39\u65f6\u95f4\u8fc7\u957f\u4ee5\u53ca\u4e8e\u4e0d\u80fd\u8fd0\u884c\u6216\u8005\u6302\u8d77\uff0c\u5bb9\u5668\u5c06\u4e0d\u80fd\u8fbe\u5230Running\u72b6\u6001\u3002\n    \u5bb9\u5668\u542f\u52a8\u540e\u6267\u884c\uff0c\u6ce8\u610f\u7531\u4e8e\u662f\u5f02\u6b65\u6267\u884c\uff0c\u5b83\u65e0\u6cd5\u4fdd\u8bc1\u4e00\u5b9a\u5728ENTRYPOINT\u4e4b\u540e\u8fd0\u884c\u3002\u5982\u679c\u5931\u8d25\uff0c\u5bb9\u5668\u4f1a\u88ab\u6740\u6b7b\uff0c\u5e76\u6839\u636eRestartPolicy\u51b3\u5b9a\u662f\u5426\u91cd\u542f\n\n    PreStop :\u5728\u5bb9\u5668\u7ec8\u6b62\u524d\u7acb\u5373\u88ab\u8c03\u7528\u3002\u5b83\u662f\u963b\u585e\u7684\uff0c\u610f\u5473\u7740\u5b83\u662f\u540c\u6b65\u7684\uff0c\u6240\u4ee5\u5b83\u5fc5\u987b\u5728\u5220\u9664\u5bb9\u5668\u7684\u8c03\u7528\u51fa\u53d1\u4e4b\u524d\u5b8c\u6210\u3002\u4e3b\u8981\u7528\u4e8e\u4f18\u96c5\u5173\u95ed\u5e94\u7528\u7a0b\u5e8f\u3001\u901a\u77e5\u5176\u4ed6\u7cfb\u7edf\u7b49\u3002\u5982\u679c\u94a9\u5b50\u5728\u6267\u884c\u671f\u95f4\u6302\u8d77\uff0cPod\u9636\u6bb5\u5c06\u505c\u7559\u5728Running\u72b6\u6001\u5e76\u4e14\u4e0d\u4f1a\u8fbe\u5230failed\u72b6\u6001\n    \u5bb9\u5668\u505c\u6b62\u524d\u6267\u884c\uff0c\u5e38\u7528\u4e8e\u8d44\u6e90\u6e05\u7406\u3002\u5982\u679c\u5931\u8d25\uff0c\u5bb9\u5668\u540c\u6837\u4e5f\u4f1a\u88ab\u6740\u6b7b<\/code><\/pre>\n<h2>11\u3001\u8bf7\u4f60\u8bf4\u4e00\u4e0bkubenetes\u9488\u5bf9pod\u8d44\u6e90\u5bf9\u8c61\u7684\u5065\u5eb7\u76d1\u6d4b\u673a\u5236\uff0c\u4ee5\u53ca\u4e09\u79cd\u68c0\u67e5\u65b9\u5f0f\uff1f<\/h2>\n<h3>1.livenessProbe\u63a2\u9488(\u68c0\u67e5\u662f\u5426\u5b58\u6d3b)<\/h3>\n<pre><code class=\"language-bash\">\u53ef\u4ee5\u6839\u636e\u7528\u6237\u81ea\u5b9a\u4e49\u89c4\u5219\u6765\u5224\u5b9apod\u662f\u5426\u5065\u5eb7\uff0c\u5982\u679clivenessProbe\u63a2\u9488\u63a2\u6d4b\u5230\u5bb9\u5668\u4e0d\u5065\u5eb7\uff0c\u5219kubelet\u4f1a\u6839\u636e\u5176\u91cd\u542f\u7b56\u7565\u6765\u51b3\u5b9a\u662f\u5426\u91cd\u542f\uff0c\u5982\u679c\u4e00\u4e2a\u5bb9\u5668\u4e0d\u5305\u542blivenessProbe\u63a2\u9488\uff0c\u5219kubelet\u4f1a\u8ba4\u4e3a\u5bb9\u5668\u7684livenessProbe\u63a2\u9488\u7684\u8fd4\u56de\u503c\u6c38\u8fdc\u6210\u529f\u3002<\/code><\/pre>\n<h3>2.ReadinessProbe\u63a2\u9488\uff08\u68c0\u67e5\u662f\u5426\u5c31\u7eea\uff09<\/h3>\n<p><\/p><div id=\"rml_readmorelogin_placeholder\" style=\"position:relative;\"><div id=\"rml_fade_content\" style=\"position: absolute;\r\ntop:-10em;\r\nwidth:100%;\r\nheight:10em;\r\nbackground: -webkit-linear-gradient(rgba(255, 255, 255, 0) 0%,#ffffff 100%);\r\nbackground-image: -moz-linear-gradient(rgba(255, 255, 255, 0) 0%,#ffffff 100%);\r\nbackground-image: -o-linear-gradient(rgba(255, 255, 255, 0) 0%,#ffffff 100%);\r\nbackground-image: linear-gradient(rgba(255, 255, 255, 0) 0%,#ffffff 100%);\r\nbackground-image: -ms-linear-gradient(rgba(255, 255, 255, 0) 0%,#ffffff 100%);\"><\/div><div class=\"wpf-controller aru_rml_from_in_post\" style=\"background-color:#eeeeee;border:5px solid #cce6ff;\" id=\"ARU_ReadMoreLogin_ReadMoreLoginController\"><h2 id=\"Header\">\u67e5\u770b\u66f4\u591a<\/h2><div id=\"Message\"><p>\u8054\u7cfb\u7ba1\u7406\u5458\u5fae\u4fe1tutu19192010\uff0c\u6ce8\u518c\u8d26\u53f7<\/p>\n<\/div><div id=\"StatusBarHeader\"><\/div><form id=\"ARU_ReadMoreLogin_ReadMoreLoginController\"><input name=\"post_id\" value=\"1718\" type=\"hidden\"\/><input name=\"_init_callback\" value=\"InitLogin\" type=\"hidden\"\/><input name=\"post_id\" value=\"1718\" type=\"hidden\"\/><input name=\"rt_ype\" value=\"1\" type=\"hidden\"\/><input name=\"nonce\" value=\"1c67142c8e\" type=\"hidden\"\/><input name=\"_wpnonce\" value=\"ee095c8387\" type=\"hidden\"\/><input name=\"_controller\" value=\"ARU_ReadMoreLogin\\ReadMoreLoginController\" type=\"hidden\"\/><input name=\"_proxy_controller\" value=\"ARU_ReadMoreLogin\\ReadMoreLoginController\" type=\"hidden\"\/><input name=\"_view\" value=\"ARU_ReadMoreLogin\\ReadMoreLoginView\" type=\"hidden\"\/><table class=\"wpf-table-placeholder\"><tbody class=\"wpf-table-placeholder\"><tr class=\"wpf-table-placeholder\"><td class=\"wpf-table-placeholder-input\" width=\"400px\"><table class=\"wpf-table-placeholder\"><tbody class=\"wpf-table-placeholder\"><tr class=\"wpf-table-placeholder\"><th class=\"wpf-table-placeholder-input\"><label class=\"wpf-label\">Username:<\/label><\/th><\/tr><tr class=\"wpf-table-placeholder\"><td class=\"wpf-table-placeholder-input\"><input class=\"regular-text text_input\" name=\"username\" value=\"\" type=\"text\"\/><\/td><\/tr><tr class=\"wpf-table-placeholder\"><th class=\"wpf-table-placeholder-input\"><label class=\"wpf-label\">Password:<\/label><\/th><\/tr><tr class=\"wpf-table-placeholder\"><td class=\"wpf-table-placeholder-input\"><input class=\"regular-text text_input\" name=\"password\" value=\"\" type=\"password\"\/><\/td><\/tr><\/tbody><\/table><p class=\"wpf-table-placeholder submit\"><button class=\"wp_plugin_framework_ajax_button\" type=\"button\" style=\"background-color:#4D90FE;;color:#ffffff;;border:1px solid #3079ed;\" name=\"_event\" value=\"ButtonLogin\">Log in<\/button><\/p><\/td><td class=\"wpf-table-placeholder-input\"><\/td><\/tr><\/tbody><\/table><\/form><div id=\"ButtonStartRegister\"><a href=\"https:\/\/egonlin.com\/wp-login.php?action=register\">Register<\/a><\/div><div id=\"Link1\"><a href=\"https:\/\/egonlin.com\/wp-login.php?action=lostpassword\">Forgotten username or password?<\/a><\/div><div id=\"StatusBarFooter\"><\/div><\/div><\/div><div id=aru_remaining_content><\/div>","protected":false},"excerpt":{"rendered":"<p>1\u3001\u4ec0\u4e48\u662fk8s\uff1f Kubenetes\u662f\u4e00\u4e2a\u9488\u5bf9\u5bb9\u5668\u5e94\u7528\uff0c\u8fdb\u884c\u81ea\u52a8\u90e8\u7f72\uff0c\u5f39\u6027\u4f38\u7f29\u548c\u7ba1\u7406\u7684\u5f00\u6e90\u7cfb\u7edf\u3002\u4e3b\u8981\u529f\u80fd\u662f\u751f [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":2529,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[210],"tags":[134,135,22,20,215],"_links":{"self":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts\/1718"}],"collection":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1718"}],"version-history":[{"count":0,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts\/1718\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/media\/2529"}],"wp:attachment":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1718"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1718"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1718"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}