{"id":7700,"date":"2026-08-20T21:35:11","date_gmt":"2026-08-20T13:35:11","guid":{"rendered":"https:\/\/i007.cc\/wordpress\/?p=7700"},"modified":"2026-08-20T21:35:11","modified_gmt":"2026-08-20T13:35:11","slug":"k8s%e7%9a%84%e6%9c%8d%e5%8a%a1%e5%99%a8%e5%92%8c%e5%ae%a2%e6%88%b7%e7%ab%af%e6%98%af%e6%80%8e%e4%b9%88%e5%9b%9e%e4%ba%8b%ef%bc%9fk8s%e6%9c%89%e5%87%a0%e4%b8%aa%e8%bf%9b%e7%a8%8b%ef%bc%8c%e5%90%84","status":"publish","type":"post","link":"https:\/\/i007.cc\/wordpress\/archives\/7700","title":{"rendered":"k8s\u7684\u670d\u52a1\u5668\u548c\u5ba2\u6237\u7aef\u662f\u600e\u4e48\u56de\u4e8b\uff1fk8s\u6709\u51e0\u4e2a\u8fdb\u7a0b\uff0c\u5404\u4e2a\u8fdb\u7a0b\u4e4b\u95f4\u662f\u4ec0\u4e48\u5173\u7cfb\uff1f"},"content":{"rendered":"<div data-rs-index=\"41\" data-index=\"41\" data-testid=\"transcript-row\" data-perf-row=\"human\" data-perf-row-from-tail=\"1\" data-perf-row-streaming=\"false\">\n<div class=\"rounded-lg focus-visible:shadow-focus focus-visible:outline-hidden\" tabindex=\"0\" role=\"article\" aria-setsize=\"43\" aria-posinset=\"42\" aria-label=\"Message 42 of 43\">\n<div data-test-render-count=\"2\">\n<div class=\"mb-1 mt-[var(--msg-gap,1.5rem)] group group\/message-row\">\n<div class=\"flex flex-col items-end gap-1\">\n<div class=\"group\/message-row flex min-w-0 flex-col items-end gap-xs font-sans ms-auto max-w-[85%] cds-um-enter\" data-cds=\"UserMessage\">\n<div class=\"relative flex max-w-full min-w-0 flex-col gap-xs rounded-card px-lg py-md text-heading break-words select-text text-primary bg-neutral\">\n<div id=\"_r_1h2_\" class=\"\">\n<div class=\"grid grid-cols-1 gap-2 relative [&amp;_ul]:!space-y-0 [&amp;_ol]:!space-y-0 [&amp;_ul]:pl-8 [&amp;_ol]:pl-8\" data-testid=\"user-message\">\n<p class=\"whitespace-pre-wrap break-words\" dir=\"ltr\">\u8fd9\u4e2a\u95ee\u9898\u6b63\u597d\u53ef\u4ee5\u62ff\u6765\u8ddf\u521a\u804a\u5b8c\u7684 etcd 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\u6574\u4e2a\u67b6\u6784\u91cc\u6700\u6838\u5fc3\u7684\u8bbe\u8ba1\u539f\u5219\uff0c\u7406\u89e3\u4e86\u8fd9\u4e00\u6761\uff0c\u5176\u4ed6\u6240\u6709\u7ec4\u4ef6\u4e4b\u95f4\u7684\u5173\u7cfb\u5c31\u90fd\u80fd\u63a8\u51fa\u6765\u4e86\u3002<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div data-rs-index=\"42\" data-index=\"42\" data-testid=\"transcript-row\" data-last-message=\"true\" data-perf-row=\"assistant\" data-perf-row-from-tail=\"0\" data-perf-row-streaming=\"false\">\n<div class=\"rounded-lg focus-visible:shadow-focus focus-visible:outline-hidden\" tabindex=\"-1\" role=\"article\" aria-setsize=\"43\" aria-posinset=\"43\" aria-label=\"Message 43 of 43\">\n<div data-test-render-count=\"1\">\n<div class=\"group group\/message-row\">\n<div class=\"group relative relative pb-[var(--msg-assistant-pb,0.75rem)]\" data-is-streaming=\"false\">\n<div class=\"font-claude-response relative leading-[1.65rem] [&amp;_pre&gt;div]:bg-bg-000\/50 [&amp;_pre&gt;div]:border-0.5 [&amp;_pre&gt;div]:border-border-400 [&amp;_.ignore-pre-bg&gt;div]:bg-transparent [&amp;_.standard-markdown_:is(p,blockquote,h1,h2,h3,h4,h5,h6)]:pl-[var(--msg-text-inset,0.5rem)] [&amp;_.standard-markdown_:is(p,blockquote,ul,ol,h1,h2,h3,h4,h5,h6)]:pr-8 [&amp;_.progressive-markdown_:is(p,blockquote,h1,h2,h3,h4,h5,h6)]:pl-[var(--msg-text-inset,0.5rem)] [&amp;_.progressive-markdown_:is(p,blockquote,ul,ol,h1,h2,h3,h4,h5,h6)]:pr-8\">\n<div class=\"standard-markdown grid-cols-1 grid [&amp;_&gt;_*]:min-w-0 gap-3 [&amp;_&gt;_*:last-child]:mb-0 print:block print:[&amp;_&gt;_:where(:not(:first-child))]:mt-3 standard-markdown\">\n<p dir=\"ltr\">\n<p class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\">\u5148\u6570\u4e00\u4e0b\u4e00\u4e2a\u5178\u578b\u96c6\u7fa4\u91cc\u5b9e\u9645\u8dd1\u7740\u7684\u8fdb\u7a0b\u3002\u63a7\u5236\u9762\uff08\u901a\u5e38\u8dd1\u5728 control-plane \u8282\u70b9\u4e0a\uff09\u8fd9\u8fb9\u6709\u8fd9\u4e48\u51e0\u4e2a\uff1a<\/p>\n<p class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\">kube-apiserver\uff0c\u552f\u4e00\u7684\u771f\u670d\u52a1\u5668\uff0c\u5bf9\u5916\u66b4\u9732 Kubernetes \u90a3\u5957 REST \u98ce\u683c\u7684 API\uff1b<\/p>\n<p class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\">etcd\uff0c\u6211\u4eec\u524d\u9762\u8be6\u7ec6\u804a\u8fc7\u7684\u5b58\u50a8\u540e\u7aef\uff1b<\/p>\n<p class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\">kube-scheduler\uff0c\u4e13\u95e8\u8d1f\u8d23\u8c03\u5ea6\u51b3\u7b56\uff1b<\/p>\n<p class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\">kube-controller-manager\uff0c\u8fd9\u4e2a\u540d\u5b57\u5bb9\u6613\u8ba9\u4eba\u4ee5\u4e3a\u662f&#8221;\u4e00\u4e2a\u63a7\u5236\u5668&#8221;\uff0c\u5b9e\u9645\u4e0a\u5b83\u662f\u4e00\u4e2a\u628a\u51e0\u5341\u4e2a\u72ec\u7acb\u63a7\u5236\u5668\uff08Deployment \u63a7\u5236\u5668\u3001ReplicaSet \u63a7\u5236\u5668\u3001Node \u63a7\u5236\u5668\u3001Job \u63a7\u5236\u5668\u7b49\u7b49\uff09\u6253\u5305\u7f16\u8bd1\u8fdb\u540c\u4e00\u4e2a\u4e8c\u8fdb\u5236\u3001\u4f5c\u4e3a\u540c\u4e00\u4e2a\u8fdb\u7a0b\u91cc\u7684\u4e0d\u540c goroutine \u4e00\u8d77\u8dd1\u7684&#8221;\u5408\u96c6&#8221;\uff0c\u8fd9\u4e48\u8bbe\u8ba1\u7eaf\u7cb9\u662f\u8fd0\u7ef4\u4e0a\u7684\u7b80\u5316\uff08\u5c11\u88c5\u4e00\u4e2a\u4e1c\u897f\uff09\uff0c\u903b\u8f91\u4e0a\u8fd9\u51e0\u5341\u4e2a\u63a7\u5236\u5668\u5f7c\u6b64\u662f\u72ec\u7acb\u7684\uff0c\u53ea\u662f\u5171\u4eab\u4e86\u4e00\u4e2a\u8fdb\u7a0b\uff1b\u5982\u679c\u96c6\u7fa4\u8dd1\u5728\u516c\u6709\u4e91\u4e0a\uff0c\u901a\u5e38\u8fd8\u4f1a\u6709\u4e00\u4e2a cloud-controller-manager\uff0c\u540c\u6837\u662f\u628a\u8ddf\u5177\u4f53\u4e91\u5382\u5546\u76f8\u5173\u7684\u63a7\u5236\u5668\uff08\u6bd4\u5982\u7ed9 Service \u7c7b\u578b LoadBalancer \u53bb\u8c03\u7528\u4e91\u5382\u5546 API \u521b\u5efa\u8d1f\u8f7d\u5747\u8861\u5668\uff09\u6253\u5305\u6210\u4e00\u4e2a\u8fdb\u7a0b,\u601d\u8def\u8ddf controller-manager \u4e00\u6837\u3002<\/p>\n<p dir=\"ltr\">\n<p class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\">\u8282\u70b9\u4fa7\uff08\u6bcf\u4e2a worker \u8282\u70b9\u4e0a\u90fd\u4f1a\u8dd1\u4e00\u4efd\uff09\u6709\uff1a<\/p>\n<p class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\">kubelet\uff0c\u6211\u4eec\u4e4b\u524d\u8be6\u7ec6\u804a\u8fc7\uff0c\u8d1f\u8d23\u628a Pod \u771f\u6b63\u843d\u5730\u6210\u5bb9\u5668\uff1b<\/p>\n<p class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\">kube-proxy\uff0c\u8d1f\u8d23\u6839\u636e Service\/Endpoint \u4fe1\u606f\u5728\u672c\u5730\u7ef4\u62a4 iptables\/ipvs \u89c4\u5219\uff0c\u5b9e\u73b0\u96c6\u7fa4\u5185\u7684\u670d\u52a1\u53d1\u73b0\u548c\u8d1f\u8f7d\u5747\u8861\uff1b\u5bb9\u5668\u8fd0\u884c\u65f6\uff08\u6bd4\u5982 containerd\u3001CRI-O\uff09\uff0c\u4e25\u683c\u8bf4\u4e0d\u7b97 Kubernetes \u9879\u76ee\u81ea\u5df1\u7684\u7ec4\u4ef6\uff0c\u4f46\u6bcf\u4e2a\u8282\u70b9\u5fc5\u5907,kubelet \u901a\u8fc7 CRI \u63a5\u53e3\uff08\u672c\u5730 Unix Socket\uff0c\u4e0d\u8d70\u7f51\u7edc\uff09\u8ddf\u5b83\u5bf9\u8bdd\u3002\u53e6\u5916\u8fd8\u6709\u4f60\u5929\u5929\u5728\u7528\u7684 kubectl\uff0c\u672c\u8d28\u4e0a\u4e5f\u53ea\u662f apiserver \u7684\u4e00\u4e2a\u666e\u901a\u5ba2\u6237\u7aef\uff0c\u8ddf kube-scheduler\u3001kubelet \u5728&#8221;\u662f\u4e0d\u662f\u5ba2\u6237\u7aef&#8221;\u8fd9\u4ef6\u4e8b\u4e0a\u6ca1\u6709\u4efb\u4f55\u7279\u6b8a\u4e4b\u5904\uff0c\u552f\u4e00\u533a\u522b\u662f\u5b83\u662f\u88ab\u4eba\u76f4\u63a5\u6572\u547d\u4ee4\u8c03\u7528\u7684\uff0c\u5176\u4ed6\u7ec4\u4ef6\u662f\u5e38\u9a7b\u540e\u53f0\u81ea\u5df1\u8dd1\u5faa\u73af\u7684\u3002<\/p>\n<p dir=\"ltr\">\n<p class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\">\u73b0\u5728\u770b\u5173\u7cfb\uff1akube-scheduler\u3001kube-controller-manager\u3001cloud-controller-manager\u3001kubelet\u3001kube-proxy\u3001kubectl\uff0c\u8fd9\u4e9b\u5168\u90e8\u3001\u65e0\u4e00\u4f8b\u5916\uff0c\u90fd\u662f kube-apiserver \u7684\u5ba2\u6237\u7aef\uff0c\u90fd\u662f\u901a\u8fc7\u6211\u4eec\u4e4b\u524d\u53cd\u590d\u63d0\u5230\u7684 Informer\/Watch \u673a\u5236\u53bb\u8ba2\u9605 apiserver \u4e0a\u7684\u8d44\u6e90\u53d8\u5316\uff0c\u7136\u540e\u5404\u81ea\u51b3\u5b9a\u8981\u4e0d\u8981\u91c7\u53d6\u884c\u52a8\u3001\u884c\u52a8\u5b8c\u4e86\u518d\u628a\u7ed3\u679c\u5199\u56de apiserver\u3002\u5b83\u4eec\u5f7c\u6b64\u4e4b\u95f4\u6ca1\u6709\u4efb\u4f55\u76f4\u63a5\u7684\u7f51\u7edc\u8fde\u63a5\u2014\u2014kube-scheduler \u505a\u5b8c\u8c03\u5ea6\u51b3\u7b56\uff0c\u4e0d\u4f1a\u76f4\u63a5\u7ed9 kubelet \u6253\u4e2a\u7535\u8bdd\u8bf4&#8221;\u8fd9\u4e2a Pod \u5f52\u4f60\u4e86&#8221;\uff0c\u5b83\u53ea\u662f\u628a spec.nodeName \u5199\u56de apiserver\uff08apiserver \u518d\u843d\u5230 etcd\uff09\uff0ckubelet \u662f\u5b8c\u5168\u72ec\u7acb\u5730\u3001\u81ea\u5df1\u53bb watch apiserver \u624d\u53d1\u73b0&#8221;\u5594\u6709\u4e2a\u65b0 Pod \u5206\u914d\u7ed9\u6211\u4e86&#8221;\uff0c\u8fd9\u4e2a\u53d1\u73b0\u8fc7\u7a0b\u8ddf scheduler \u5b8c\u5168\u8131\u94a9\uff0c\u4e24\u8005\u751a\u81f3\u53ef\u4ee5\u8fd0\u884c\u5728\u4e0d\u540c\u6279\u6b21\u542f\u52a8\u3001\u4e92\u76f8\u90fd\u4e0d\u77e5\u9053\u5bf9\u65b9\u5b58\u5728\uff0c\u53ea\u8981\u90fd\u80fd\u8fde\u4e0a\u540c\u4e00\u4e2a apiserver \u5c31\u884c\u3002\u8fd9\u79cd&#8221;\u8c01\u90fd\u4e0d\u76f4\u63a5\u627e\u8c01\uff0c\u90fd\u5bf9\u7740\u540c\u4e00\u4efd\u5171\u4eab\u72b6\u6001\u5404\u81ea\u53cd\u5e94&#8221;\u7684\u6a21\u5f0f\uff0c\u6b63\u662f Kubernetes \u63a7\u5236\u5668\u6a21\u5f0f\uff08controller pattern\uff09\u80fd\u591f\u5de5\u4f5c\u7684\u6839\u57fa\uff0c\u4e5f\u662f\u6211\u4eec\u524d\u9762\u804a Crossplane \u7684 reconcile loop \u65f6\u8bb2\u7684\u601d\u8def\u7684\u6e90\u5934\u2014\u2014Crossplane \u672c\u8d28\u4e0a\u5c31\u662f\u7167\u7740 Kubernetes \u81ea\u5df1\u8fd9\u5957\u5185\u90e8\u673a\u5236\u7684\u6837\u5b50\u505a\u51fa\u6765\u7684\u4e00\u4e2a\u6269\u5c55\u3002<\/p>\n<p dir=\"ltr\">\n<p class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\">\u800c etcd \u8fd9\u4e00\u8fb9\uff0c\u53ea\u6709 kube-apiserver \u4e00\u4e2a\u7ec4\u4ef6\u4f1a\u76f4\u63a5\u8fde\u5b83\uff0c\u8fd9\u662f\u4e00\u6761\u88ab\u4e25\u683c\u9075\u5b88\u7684\u8fb9\u754c\uff08\u867d\u7136\u6280\u672f\u4e0a\u6ca1\u4eba\u80fd\u62e6\u7740\u4f60\u76f4\u63a5\u62ff etcdctl \u53bb\u6539\u6570\u636e\uff0c\u4f46\u8fd9\u4e48\u505a\u4f1a\u7ed5\u5f00 apiserver \u7684\u8ba4\u8bc1\u3001\u9274\u6743\u3001\u51c6\u5165\u63a7\u5236\u3001\u6821\u9a8c\u8fd9\u4e00\u6574\u5957\u903b\u8f91\uff0c\u662f\u660e\u786e\u4e0d\u5141\u8bb8\u7684\u505a\u6cd5\uff09\u3002\u6240\u4ee5\u4ece etcd \u7684\u89c6\u89d2\u770b\uff0c\u5b83\u773c\u91cc\u53ea\u6709\u4e00\u4e2a\u5ba2\u6237\u7aef\uff0c\u5c31\u662f apiserver\uff08\u751f\u4ea7\u73af\u5883\u91cc apiserver \u901a\u5e38\u4f1a\u90e8\u7f72\u591a\u4e2a\u5b9e\u4f8b\u505a\u9ad8\u53ef\u7528\uff0c\u8fd9\u51e0\u4e2a apiserver \u5b9e\u4f8b\u90fd\u5404\u81ea\u72ec\u7acb\u8fde\u63a5\u540c\u4e00\u4e2a etcd \u96c6\u7fa4\uff0capiserver \u4e4b\u95f4\u5f7c\u6b64\u4e5f\u4e0d\u76f4\u63a5\u901a\u4fe1\uff0c\u90fd\u662f\u5206\u522b\u53bb\u8bfb\u5199\u540c\u4e00\u4efd etcd \u6570\u636e\uff0c\u901a\u8fc7 etcd \u7684\u5f3a\u4e00\u81f4\u6027\u6765\u4fdd\u8bc1\u591a\u4e2a apiserver \u5b9e\u4f8b\u770b\u5230\u7684\u662f\u540c\u4e00\u4efd\u6570\u636e\uff09\u3002<\/p>\n<p class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\">\u6709\u51e0\u4e2a\u4f8b\u5916\u60c5\u51b5\u6253\u7834\u4e86&#8221;\u53ea\u80fd\u662f apiserver \u7684\u5ba2\u6237\u7aef&#8221;\u8fd9\u4e2a\u89c4\u5219\uff0c\u503c\u5f97\u5355\u72ec\u63d0\u4e00\u4e0b\uff0c\u56e0\u4e3a\u65b9\u5411\u53cd\u8fc7\u6765\u4e86\u2014\u2014\u53d8\u6210 apiserver \u4e3b\u52a8\u53bb\u8fde\u522b\u7684\u7ec4\u4ef6\uff1a\u4e00\u4e2a\u662f\u4f60\u6267\u884c\u00a0<code class=\"bg-text-200\/5 border border-0.5 border-border-300 text-danger-000 whitespace-pre-wrap rounded-[0.4rem] px-1 py-px text-[0.9rem]\">kubectl exec<\/code>\u3001<code class=\"bg-text-200\/5 border border-0.5 border-border-300 text-danger-000 whitespace-pre-wrap rounded-[0.4rem] px-1 py-px text-[0.9rem]\">kubectl logs<\/code>\u3001<code class=\"bg-text-200\/5 border border-0.5 border-border-300 text-danger-000 whitespace-pre-wrap rounded-[0.4rem] px-1 py-px text-[0.9rem]\">kubectl port-forward<\/code>\u00a0\u7684\u65f6\u5019\uff0capiserver \u4f1a\u53cd\u8fc7\u6765\u4e3b\u52a8\u53d1\u8d77\u8fde\u63a5\uff0c\u53bb\u8fde\u76ee\u6807 Pod \u6240\u5728\u8282\u70b9\u4e0a kubelet 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