{"id":35461,"date":"2023-08-10T02:32:04","date_gmt":"2023-02-20T01:21:10","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%9c%a8kubernetes%e4%b8%ad%e6%b7%b1%e5%85%a5%e8%a7%a3%e9%87%8acgroups%ef%bc%9a%e8%b5%84%e6%ba%90%e7%ae%a1%e7%90%86%e8%83%8c%e5%90%8e%e7%9a%84%e5%b7%a5%e4%bd%9c\/"},"modified":"2024-04-30T17:51:46","modified_gmt":"2024-04-30T09:51:46","slug":"%e5%9c%a8kubernetes%e4%b8%ad%e6%b7%b1%e5%85%a5%e8%a7%a3%e9%87%8acgroups%ef%bc%9a%e8%b5%84%e6%ba%90%e7%ae%a1%e7%90%86%e8%83%8c%e5%90%8e%e7%9a%84%e5%b7%a5%e4%bd%9c","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%9c%a8kubernetes%e4%b8%ad%e6%b7%b1%e5%85%a5%e8%a7%a3%e9%87%8acgroups%ef%bc%9a%e8%b5%84%e6%ba%90%e7%ae%a1%e7%90%86%e8%83%8c%e5%90%8e%e7%9a%84%e5%b7%a5%e4%bd%9c\/","title":{"rendered":"\u5728Kubernetes\u4e2d\u6df1\u5165\u89e3\u91caCgroups\uff1a\u8d44\u6e90\u7ba1\u7406\u80cc\u540e\u7684\u5de5\u4f5c"},"content":{"rendered":"<h1>\u6df1\u5165\u7814\u7a76Kubernetes\u4e2d\u7684Cgroups\uff1a\u8d44\u6e90\u7ba1\u7406\u7684\u5e55\u540e<\/h1>\n<h2>\u76ee\u5f55<\/h2>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">1. \u306f\u3058\u3081\u306b<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">2. Cgroups\u306e\u57fa\u672c<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">3. Kubernetes\u306b\u304a\u3051\u308bCgroups\u306e\u5229\u7528<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">4. Cgroups\u306e\u968e\u5c64\u69cb\u9020\u3068\u305d\u306e\u5f79\u5272<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">5. QoS\u30ec\u30d9\u30eb\u306b\u304a\u3051\u308bCgroup\u306e\u5f79\u5272\u3068\u512a\u5148\u9806\u4f4d<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">6. kubelet\u3068\u52d5\u7684\u30ea\u30bd\u30fc\u30b9\u5236\u9650<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">7. \u307e\u3068\u3081<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">8. \u305d\u306e\u4ed6: kube-system\u540d\u524d\u7a7a\u9593\u306e\u7279\u7570\u6027<\/ul>\n<h2>\u9996\u5148<\/h2>\n<p>Kubernetes\u306f\u3001\u30b3\u30f3\u30c6\u30ca\u306e\u30aa\u30fc\u30b1\u30b9\u30c8\u30ec\u30fc\u30b7\u30e7\u30f3\u3092\u5b9f\u73fe\u3059\u308b\u305f\u3081\u306e\u30c4\u30fc\u30eb\u3068\u3057\u3066\u5e83\u304f\u63a1\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u305d\u306e\u4e2d\u6838\u7684\u306a\u6a5f\u80fd\u306e\u4e00\u3064\u304c\u3001Linux\u306eCgroups\u3092\u5229\u7528\u3057\u305f\u30ea\u30bd\u30fc\u30b9\u7ba1\u7406\u3067\u3059\u3002\u672c\u7ae0\u3067\u306fKubernetes\u3068Cgroups\u306e\u95a2\u9023\u6027\u3092\u6982\u89b3\u3057\u307e\u3059\u3002<\/p>\n<h3>Kubernetes\u662f\u4ec0\u4e48\uff1f<\/h3>\n<p>Kubernetes\u306f\u3001\u8907\u6570\u306e\u30ce\u30fc\u30c9\u306b\u307e\u305f\u304c\u3063\u3066\u52d5\u4f5c\u3059\u308b\u30b3\u30f3\u30c6\u30ca\u7fa4\u3092\u7ba1\u7406\u30fb\u30b9\u30b1\u30b8\u30e5\u30fc\u30ea\u30f3\u30b0\u3059\u308b\u305f\u3081\u306e\u30aa\u30fc\u30d7\u30f3\u30bd\u30fc\u30b9\u306e\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u3067\u3059\u3002Docker\u3084containerd\u306a\u3069\u306e\u30b3\u30f3\u30c6\u30ca\u30e9\u30f3\u30bf\u30a4\u30e0\u3068\u7d44\u307f\u5408\u308f\u305b\u3066\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002<\/p>\n<h3>Cgroups\u7684\u4f5c\u7528<\/h3>\n<p>Cgroups\u662fLinux\u5185\u6838\u7684\u529f\u80fd\uff0c\u53ef\u4ee5\u9650\u5236\u3001\u8bb0\u5f55\u548c\u9694\u79bb\u8fdb\u7a0b\u7684\u8d44\u6e90\u4f7f\u7528\u91cf\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"c\"># \u3042\u308b\u30d7\u30ed\u30bb\u30b9\u306ecgroup\u60c5\u5831\u3092\u78ba\u8a8d\u3059\u308b\u30b3\u30de\u30f3\u30c9<\/span>\r\n<span class=\"nb\">cat<\/span> \/proc\/[process_id]\/cgroup\r\n<\/code><\/pre>\n<p>\u3053\u306e\u30b3\u30de\u30f3\u30c9\u306e\u51fa\u529b\u306f\u3001\u3069\u306ecgroup\u306b\u30d7\u30ed\u30bb\u30b9\u304c\u6240\u5c5e\u3057\u3066\u3044\u308b\u304b\u3084\u3001\u3069\u306e\u30ea\u30bd\u30fc\u30b9\u304c\u5236\u5fa1\u3055\u308c\u3066\u3044\u308b\u304b\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2>2. Cgroups\u7684\u57fa\u7840.<\/h2>\n<p>Cgroups\u662fLinux\u7684\u8d44\u6e90\u63a7\u5236\u673a\u5236\uff0c\u5b83\u4e3a\u6bcf\u4e2a\u8fdb\u7a0b\u6216\u4efb\u52a1\u7ec4\u63d0\u4f9b\u4e86\u9694\u79bb\u548c\u9650\u5236\u8d44\u6e90\u4f7f\u7528\u7684\u529f\u80fd\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"c\"># \u4f8b\u3068\u3057\u3066\u3001\u3042\u308b\u30d7\u30ed\u30bb\u30b9\u304c\u6240\u5c5e\u3059\u308bcgroup\u3092\u8868\u793a\u3059\u308b\u30b3\u30de\u30f3\u30c9<\/span>\r\n<span class=\"nb\">cat<\/span> \/proc\/[process_id]\/cgroup\r\n<\/code><\/pre>\n<p>\u8fd0\u884c\u6b64\u547d\u4ee4\u5c06\u663e\u793a\u8fdb\u7a0b\u6240\u5c5e\u7684\u6bcf\u4e2acgroup\u4ee5\u53ca\u8be5cgroup\u63a7\u5236\u7684\u8d44\u6e90\u7684\u5217\u8868\u3002<\/p>\n<h2>\u5728Kubernetes\u4e2d\u4f7f\u7528Cgroups<\/h2>\n<p>Kubernetes\u7684kubelet\u8d1f\u8d23\u5728\u6bcf\u4e2a\u8282\u70b9\u4e0a\u7ba1\u7406Pod\u7684\u6267\u884c\u548c\u8d44\u6e90\u63a7\u5236\u3002Cgroups\u88ab\u7528\u4f5c\u8fd9\u79cd\u8d44\u6e90\u63a7\u5236\u7684\u57fa\u7840\u3002<\/p>\n<h3>kubelet\u548cCgroups<\/h3>\n<p>kubelet\u4f1a\u6839\u636e\u6307\u5b9a\u8d44\u6e90\u7684\u8bf7\u6c42\u548c\u9650\u5236\uff0c\u901a\u8fc7Cgroups\u52a8\u6001\u5730\u5e94\u7528\u8d44\u6e90\u9650\u5236\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"na\">apiVersion<\/span><span class=\"pi\">:<\/span> <span class=\"s\">v1<\/span>\r\n<span class=\"na\">kind<\/span><span class=\"pi\">:<\/span> <span class=\"s\">Pod<\/span>\r\n<span class=\"na\">metadata<\/span><span class=\"pi\">:<\/span>\r\n  <span class=\"na\">name<\/span><span class=\"pi\">:<\/span> <span class=\"s\">example-pod<\/span>\r\n<span class=\"na\">spec<\/span><span class=\"pi\">:<\/span>\r\n  <span class=\"na\">containers<\/span><span class=\"pi\">:<\/span>\r\n  <span class=\"pi\">-<\/span> <span class=\"na\">name<\/span><span class=\"pi\">:<\/span> <span class=\"s\">example-container<\/span>\r\n    <span class=\"na\">image<\/span><span class=\"pi\">:<\/span> <span class=\"s\">nginx<\/span>\r\n    <span class=\"na\">resources<\/span><span class=\"pi\">:<\/span>\r\n      <span class=\"na\">requests<\/span><span class=\"pi\">:<\/span>\r\n        <span class=\"na\">memory<\/span><span class=\"pi\">:<\/span> <span class=\"s2\">\"<\/span><span class=\"s\">64Mi\"<\/span>\r\n        <span class=\"na\">cpu<\/span><span class=\"pi\">:<\/span> <span class=\"s2\">\"<\/span><span class=\"s\">250m\"<\/span>\r\n      <span class=\"na\">limits<\/span><span class=\"pi\">:<\/span>\r\n        <span class=\"na\">memory<\/span><span class=\"pi\">:<\/span> <span class=\"s2\">\"<\/span><span class=\"s\">128Mi\"<\/span>\r\n        <span class=\"na\">cpu<\/span><span class=\"pi\">:<\/span> <span class=\"s2\">\"<\/span><span class=\"s\">500m\"<\/span>\r\n<\/code><\/pre>\n<p>YAML\u4e0a\u65b9\u7684\u90a3\u90e8\u5206 de YAML)<\/p>\n<p>\u30d5\u30a1\u30a4\u30eb\u306f\u3001\u30e1\u30e2\u30ea\u306e\u8981\u6c42\u5024\u3068\u5236\u9650\u5024\u3001CPU\u306e\u8981\u6c42\u5024\u3068\u5236\u9650\u5024\u3092\u6307\u5b9a\u3057\u3066Pod\u3092\u4f5c\u6210\u3059\u308b\u4f8b\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2>4. Cgroups\u7684\u5c42\u6b21\u7ed3\u6784\u53ca\u5176\u4f5c\u7528<\/h2>\n<p>Kubernetes\u3067\u306f\u3001Cgroups\u306e\u968e\u5c64\u69cb\u9020\u3092\u5229\u7528\u3057\u3066\u3001\u30ce\u30fc\u30c9\u5168\u4f53\u306e\u30ea\u30bd\u30fc\u30b9\u3092\u52b9\u679c\u7684\u306b\u7ba1\u7406\u3057\u307e\u3059\u3002\u5177\u4f53\u7684\u306b\u306f\u3001\u4ee5\u4e0b\u306e4\u3064\u306e\u30ec\u30d9\u30eb\u3067Cgroups\u304c\u69cb\u6210\u3055\u308c\u307e\u3059\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Node(root) cgroup<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">QoS cgroup<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Pod cgroup<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">Container cgroup<\/ul>\n<p>\u3053\u308c\u3089\u306e\u968e\u5c64\u306f\u3001kubelet\u304c\u8d77\u52d5\u3059\u308b\u969b\u306b\u81ea\u52d5\u7684\u306b\u4f5c\u6210\u3055\u308c\u3001\u305d\u308c\u305e\u308c\u306e\u5f79\u5272\u306b\u5fdc\u3058\u3066\u30ea\u30bd\u30fc\u30b9\u306e\u5236\u5fa1\u304c\u884c\u308f\u308c\u307e\u3059\u3002<\/p>\n<p>\u6211\u4e86\u89e3\u4e86\u3002\u6211\u5c06\u4e3aQoS\u7684\u51b3\u7b56\u6807\u51c6\u548c\u57fa\u4e8e\u6b64\u7684\u4f18\u5148\u987a\u5e8f\u63d0\u4f9b\u989d\u5916\u7684\u4fe1\u606f\u3002<\/p>\n<h2>5. Cgroup\u5728QoS\u7ea7\u522b\u4e2d\u7684\u4f5c\u7528\u548c\u4f18\u5148\u987a\u4f4d\u3002<\/h2>\n<p>Kubernetes \u5c06 Pod \u7684\u8d28\u91cf\u670d\u52a1 (QoS) \u5206\u4e3a\u4e09\u4e2a\u7b49\u7ea7\u8fdb\u884c\u5b9a\u4e49\u3002<\/p>\n<p>Guaranteed: \u5168\u3066\u306e\u30b3\u30f3\u30c6\u30ca\u304cCPU\u3068\u30e1\u30e2\u30ea\u30fc\u306erequest\u3068limit\u3092\u6301\u3063\u3066\u304a\u308a\u3001\u4e21\u65b9\u304c\u540c\u3058\u5024\u3067\u3059\u3002<\/p>\n<p>Burstable: \u5c11\u306a\u304f\u3068\u3082\u4e00\u3064\u306e\u30b3\u30f3\u30c6\u30ca\u304cCPU\u3084\u30e1\u30e2\u30ea\u30fc\u306erequest\u3092\u6301\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>BestEffort: \u30b3\u30f3\u30c6\u30ca\u304crequest\u3084limit\u3092\u6301\u3063\u3066\u3044\u306a\u3044\u72b6\u614b\u3067\u3059\u3002<\/p>\n<p>\u8fd9\u4e2aQoS\u7ea7\u522b\u6309\u4ee5\u4e0b\u4f18\u5148\u987a\u5e8f\u8fd0\u884c\u3002<\/p>\n<p>Guaranteed: \u3053\u306e\u30ec\u30d9\u30eb\u306ePod\u306f\u3001\u4ed6\u306e\u30ec\u30d9\u30eb\u306ePod\u3088\u308a\u3082\u9ad8\u3044\u512a\u5148\u5ea6\u3092\u6301\u3063\u3066\u3044\u307e\u3059\u3002\u305d\u308c\u306f\u3001\u30ea\u30bd\u30fc\u30b9\u8981\u6c42\u304c\u4fdd\u8a3c\u3055\u308c\u3066\u3044\u308b\u305f\u3081\u3067\u3059\u3002<\/p>\n<p>Burstable: \u30ea\u30bd\u30fc\u30b9\u304c\u5229\u7528\u53ef\u80fd\u306a\u5834\u5408\u306b\u306e\u307f\u3001\u305d\u308c\u3092\u8d85\u904e\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u4ed6\u306ePod\u306e\u30ea\u30bd\u30fc\u30b9\u3092\u5727\u8feb\u3059\u308b\u3053\u3068\u306f\u8a31\u53ef\u3055\u308c\u3066\u3044\u307e\u305b\u3093\u3002<\/p>\n<p>BestEffort: \u30ea\u30bd\u30fc\u30b9\u306e\u8981\u6c42\u3084\u5236\u9650\u304c\u306a\u3044\u305f\u3081\u3001\u4ed6\u306ePod\u304c\u30ea\u30bd\u30fc\u30b9\u3092\u5fc5\u8981\u3068\u3057\u306a\u3044\u5834\u5408\u306b\u306e\u307f\u30ea\u30bd\u30fc\u30b9\u3092\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>Kubernetes\u306f\u3053\u308c\u3089\u306eQoS\u30af\u30e9\u30b9\u306b\u57fa\u3065\u3044\u3066\u3001\u5404Pod\u306b\u30ea\u30bd\u30fc\u30b9\u3092\u52d5\u7684\u306b\u914d\u5206\u3057\u307e\u3059\u3002<\/p>\n<hr \/>\n<p>\u4e0a\u8a18\u306e\u5185\u5bb9\u3092\u8ffd\u52a0\u3057\u3066\u3001QoS\u306e\u6c7a\u5b9a\u57fa\u6e96\u3068\u512a\u5148\u9806\u4f4d\u306b\u3064\u3044\u3066\u306e\u8aac\u660e\u3092\u5f37\u5316\u3057\u307e\u3057\u305f\u3002<\/p>\n<h2>6. kubelet\u548c\u52a8\u6001\u8d44\u6e90\u9650\u5236\u3002<\/h2>\n<p>kubelet\u4f1a\u5b9a\u671f\u68c0\u67e5Pod\u7684\u8d44\u6e90\u4f7f\u7528\u60c5\u51b5\uff0c\u5e76\u4f7f\u7528Cgroups\u52a8\u6001\u8c03\u6574\u8d44\u6e90\u9650\u5236\uff0c\u4ece\u800c\u4f7f\u7cfb\u7edf\u6574\u4f53\u7684\u8d44\u6e90\u4f7f\u7528\u7387\u4f18\u5316\u3002<\/p>\n<h2>7. \u307e\u3068\u3081<\/h2>\n<p>Kubernetes\u306fCgroups\u306e\u80fd\u529b\u3092\u30d5\u30eb\u306b\u6d3b\u7528\u3057\u3066\u3001\u30ea\u30bd\u30fc\u30b9\u7ba1\u7406\u306e\u9ad8\u5ea6\u5316\u3092\u5b9f\u73fe\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u77e5\u8b58\u306f\u3001Kubernetes\u74b0\u5883\u306e\u904b\u7528\u3084\u6700\u9069\u5316\u306b\u5f79\u7acb\u3064\u3067\u3057\u3087\u3046\u3002<\/p>\n<h2>8. \u305d\u306e\u4ed6: kube-system\u540d\u524d\u7a7a\u9593\u306e\u7279\u7570\u6027<\/h2>\n<p>kube-system\u306fKubernetes\u5185\u3067\u306e\u7279\u5225\u306a\u540d\u524d\u7a7a\u9593\u3067\u3059\u3002Kubernetes\u306e\u30b3\u30a2\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3084\u5404\u7a2e\u30a2\u30c9\u30aa\u30f3\u304c\u3053\u306e\u540d\u524d\u7a7a\u9593\u5185\u306b\u914d\u7f6e\u3055\u308c\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u30ea\u30bd\u30fc\u30b9\u306e\u5236\u5fa1\u3084\u512a\u5148\u5ea6\u306b\u95a2\u3057\u3066\u306f\u7279\u5225\u306a\u8a2d\u5b9a\u306f\u9069\u7528\u3055\u308c\u307e\u305b\u3093\u3002<\/p>\n<p>\u8bf7\u53c2\u8003\u6b64\u94fe\u63a5\uff1ahttps:\/\/medium.com\/p\/c4e26bda676c\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6df1\u5165\u7814\u7a76Kubernetes\u4e2d\u7684Cgroups\uff1a\u8d44\u6e90\u7ba1\u7406\u7684\u5e55\u540e \u76ee\u5f55 1. \u306f\u3058\u3081\u306b &nbsp; 2. Cg [&hellip;]<\/p>\n","protected":false},"author":10,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-35461","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u5728Kubernetes\u4e2d\u6df1\u5165\u89e3\u91caCgroups\uff1a\u8d44\u6e90\u7ba1\u7406\u80cc\u540e\u7684\u5de5\u4f5c - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/\u5728kubernetes\u4e2d\u6df1\u5165\u89e3\u91cacgroups\uff1a\u8d44\u6e90\u7ba1\u7406\u80cc\u540e\u7684\u5de5\u4f5c\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u5728Kubernetes\u4e2d\u6df1\u5165\u89e3\u91caCgroups\uff1a\u8d44\u6e90\u7ba1\u7406\u80cc\u540e\u7684\u5de5\u4f5c\" \/>\n<meta property=\"og:description\" content=\"\u6df1\u5165\u7814\u7a76Kubernetes\u4e2d\u7684Cgroups\uff1a\u8d44\u6e90\u7ba1\u7406\u7684\u5e55\u540e \u76ee\u5f55 1. \u306f\u3058\u3081\u306b &nbsp; 2. 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