{"id":462,"date":"2023-12-31T13:31:59","date_gmt":"2022-11-17T10:33:52","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/index.php\/2023\/11\/30\/%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8metrics-server%e9%85%8d%e7%bd%aekubernetes%e6%b0%b4%e5%b9%b3pod%e8%87%aa%e5%8a%a8%e7%bc%a9%e6%94%be%e5%99%a8\/"},"modified":"2025-08-02T11:33:56","modified_gmt":"2025-08-02T03:33:56","slug":"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8metrics-server%e9%85%8d%e7%bd%aekubernetes%e6%b0%b4%e5%b9%b3pod%e8%87%aa%e5%8a%a8%e7%bc%a9%e6%94%be%e5%99%a8","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8metrics-server%e9%85%8d%e7%bd%aekubernetes%e6%b0%b4%e5%b9%b3pod%e8%87%aa%e5%8a%a8%e7%bc%a9%e6%94%be%e5%99%a8\/","title":{"rendered":"\u5b9e\u6218\u6559\u7a0b\uff1a\u4f7f\u7528Metrics Server\u914d\u7f6eKubernetes HPA\u5b9e\u73b0Pod\u667a\u80fd\u6269\u7f29\u5bb9"},"content":{"rendered":"<h2>\u5f15\u8a00<\/h2>\n<p>Kubernetes\u65e8\u5728\u63d0\u4f9b\u53ef\u9760\u6027\u548c\u53ef\u4f38\u7f29\u6027\u3002\u5b83\u901a\u8fc7\u90e8\u7f72\u5177\u6709\u4e0d\u540c\u8d44\u6e90\u5206\u914d\u7684\u591a\u4e2aPod\u6765\u4e3a\u60a8\u7684\u5e94\u7528\u7a0b\u5e8f\u63d0\u4f9b\u5197\u4f59\u3002\u5c3d\u7ba1\u60a8\u53ef\u4ee5\u6839\u636e\u81ea\u5df1\u7684\u9700\u6c42\u624b\u52a8\u6269\u5927\u6216\u7f29\u5c0f\u90e8\u7f72\uff0c\u4f46Kubernetes\u63d0\u4f9b\u4e86\u4e00\u79cd\u540d\u4e3aHorizontal Pod Autoscaling\u7684\u7279\u6027\uff0c\u80fd\u591f\u63d0\u4f9b\u5373\u65f6\u6269\u5c55\u7684\u4e00\u6d41\u652f\u6301\u3002\u5b83\u662f\u4e00\u4e2a\u95ed\u73af\u7cfb\u7edf\uff0c\u6839\u636e\u60a8\u5f53\u524d\u7684\u9700\u6c42\u81ea\u52a8\u589e\u52a0\u6216\u51cf\u5c11\u8d44\u6e90\uff08\u5e94\u7528\u7a0b\u5e8fPod\uff09\u3002\u60a8\u4e3a\u6bcf\u4e2a\u9700\u8981\u81ea\u52a8\u7f29\u653e\u7684\u5e94\u7528\u7a0b\u5e8f\u90e8\u7f72\u521b\u5efa\u4e00\u4e2aHorizontalPodAutoscaler\uff08\u6216HPA\uff09\u8d44\u6e90\uff0c\u5e76\u8ba9\u5b83\u81ea\u52a8\u5904\u7406\u5176\u4f59\u4e8b\u9879\u3002<\/p>\n<p>\u4ece\u8f83\u9ad8\u5c42\u9762\u6765\u770b\uff0cHPA\u7684\u5de5\u4f5c\u5982\u4e0b\uff1a<\/p>\n<ol>\n<li>\u901a\u8fc7\u67e5\u8be2\u5ea6\u91cf\u670d\u52a1\u5668\uff0c\u5b83\u4f1a\u76d1\u89c6\u6765\u81ea\u5e94\u7528\u5de5\u4f5c\u8d1f\u8f7d\uff08Pods\uff09\u7684\u8d44\u6e90\u8bf7\u6c42\u6307\u6807\u3002<\/li>\n<li>\u5b83\u4f1a\u5c06\u60a8\u5728HPA\u5b9a\u4e49\u4e2d\u8bbe\u7f6e\u7684\u76ee\u6807\u9608\u503c\u503c\u4e0e\u89c2\u5bdf\u5230\u7684\u5e94\u7528\u5de5\u4f5c\u8d1f\u8f7d\uff08CPU\u548c\u5185\u5b58\uff09\u7684\u5e73\u5747\u8d44\u6e90\u5229\u7528\u7387\u8fdb\u884c\u6bd4\u8f83\u3002<\/li>\n<li>\u5982\u679c\u8fbe\u5230\u76ee\u6807\u9608\u503c\uff0cHPA\u5c06\u6269\u5c55\u60a8\u7684\u5e94\u7528\u90e8\u7f72\u4ee5\u6ee1\u8db3\u66f4\u9ad8\u7684\u9700\u6c42\u3002\u5426\u5219\uff0c\u5982\u679c\u4f4e\u4e8e\u9608\u503c\uff0c\u5219\u4f1a\u7f29\u5c0f\u90e8\u7f72\u89c4\u6a21\u3002\u8981\u4e86\u89e3HPA\u7528\u4e8e\u6269\u5c55\u60a8\u7684\u5e94\u7528\u90e8\u7f72\u7684\u903b\u8f91\uff0c\u8bf7\u67e5\u9605\u5b98\u65b9\u6587\u6863\u4e2d\u7684\u7b97\u6cd5\u8be6\u7ec6\u4fe1\u606f\u9875\u9762\u3002<\/li>\n<\/ol>\n<p>\u5728\u5e95\u5c42\uff0cHorizontalPodAutoscaler\u662f\u4e00\u4e2aCRD\uff08\u81ea\u5b9a\u4e49\u8d44\u6e90\u5b9a\u4e49\uff09\uff0c\u8be5\u8d44\u6e90\u901a\u8fc7\u96c6\u7fa4\u5185\u7684\u4e13\u7528\u63a7\u5236\u5668\u5b9e\u73b0\u4e86Kubernetes\u63a7\u5236\u5faa\u73af\u3002\u60a8\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a\u9488\u5bf9\u5e94\u7528\u7a0b\u5e8f\u90e8\u7f72\u7684HorizontalPodAutoscaler YAML\u6e05\u5355\uff0c\u5e76\u4f7f\u7528kubectl\u5c06HPA\u8d44\u6e90\u5e94\u7528\u4e8e\u96c6\u7fa4\u4e2d\u3002<\/p>\n<p>\u4e3a\u4e86\u5de5\u4f5c\u8d77\u6765\uff0cHPA \u9700\u8981\u96c6\u7fa4\u4e2d\u53ef\u7528\u7684\u6307\u6807\u670d\u52a1\u5668\u6765\u6293\u53d6\u6240\u9700\u7684\u6307\u6807\uff0c\u4f8b\u5982 CPU \u548c\u5185\u5b58\u5229\u7528\u7387\u3002\u4e00\u4e2a\u7b80\u5355\u7684\u9009\u62e9\u662f Kubernetes \u6307\u6807\u670d\u52a1\u5668\u3002\u6307\u6807\u670d\u52a1\u5668\u901a\u8fc7\u4ece Kubelets \u6536\u96c6\u8d44\u6e90\u6307\u6807\uff0c\u5e76\u901a\u8fc7 Kubernetes API \u670d\u52a1\u5668\u5411 Horizontal Pod Autoscaler \u516c\u5f00\u8fd9\u4e9b\u6307\u6807\u6765\u5de5\u4f5c\u3002\u5982\u6709\u9700\u8981\uff0c\u4e5f\u53ef\u4ee5\u901a\u8fc7 kubectl top \u8bbf\u95ee\u6307\u6807 API\u3002<\/p>\n<p>\u5728\u672c\u6559\u7a0b\u4e2d\uff0c\u4f60\u5c06\u4f1a\uff1a<\/p>\n<ul class=\"post-ul\">\n<li>\u5c06Metrics Server\u90e8\u7f72\u5230\u60a8\u7684Kubernetes\u96c6\u7fa4\u4e2d\u3002<\/li>\n<li>\u5b66\u4e60\u5982\u4f55\u4e3a\u60a8\u7684\u5e94\u7528\u7a0b\u5e8f\u521b\u5efaHorizontal Pod Autoscalers\u3002<\/li>\n<li>\u4f7f\u7528\u4e24\u79cd\u573a\u666f\u6d4b\u8bd5\u6bcf\u4e2aHPA\u8bbe\u7f6e\uff1a\u6052\u5b9a\u548c\u53ef\u53d8\u5e94\u7528\u7a0b\u5e8f\u8d1f\u8f7d\u3002<\/li>\n<\/ul>\n<p>\u5982\u679c\u4f60\u6b63\u5728\u5bfb\u627e\u6258\u7ba1\u7684Kubernetes\u6258\u7ba1\u670d\u52a1\uff0c\u8bf7\u5173\u6ce8\u6211\u4eec\u4e3a\u589e\u957f\u800c\u6784\u5efa\u7684\u7b80\u5355\u6258\u7ba1\u7684Kubernetes\u670d\u52a1\u3002<\/p>\n<h2>\u5148\u51b3\u6761\u4ef6<\/h2>\n<p>\u8981\u6309\u7167\u672c\u6559\u7a0b\u8fdb\u884c\u64cd\u4f5c\uff0c\u4f60\u9700\u8981\uff1a<\/p>\n<ul class=\"post-ul\">\n<li>\u4e00\u4e2a\u542f\u7528\u4e86\u57fa\u4e8e\u89d2\u8272\u7684\u8bbf\u95ee\u63a7\u5236\uff08RBAC\uff09\u7684Kubernetes\u96c6\u7fa4\u3002\u6b64\u8bbe\u7f6e\u5c06\u4f7f\u7528Silicon Cloud Kubernetes\u96c6\u7fa4\uff0c\u4f46\u60a8\u4e5f\u53ef\u4ee5\u624b\u52a8\u521b\u5efa\u96c6\u7fa4\u3002\u60a8\u7684Kubernetes\u7248\u672c\u5e94\u57281.20\u52301.25\u4e4b\u95f4\u3002<\/li>\n<li>\u5728\u672c\u5730\u73af\u5883\u4e2d\u5b89\u88c5\u4e86kubectl\u547d\u4ee4\u884c\u5de5\u5177\uff0c\u5e76\u914d\u7f6e\u4e3a\u8fde\u63a5\u5230\u60a8\u7684\u96c6\u7fa4\u3002\u60a8\u53ef\u4ee5\u5728\u5b98\u65b9\u6587\u6863\u4e2d\u9605\u8bfb\u66f4\u591a\u5173\u4e8e\u5b89\u88c5kubectl\u7684\u4fe1\u606f\u3002\u5982\u679c\u60a8\u4f7f\u7528\u7684\u662fSilicon Cloud Kubernetes\u96c6\u7fa4\uff0c\u8bf7\u53c2\u8003\u300a\u5982\u4f55\u8fde\u63a5\u5230Silicon Cloud Kubernetes\u96c6\u7fa4\u300b\u4ee5\u4e86\u89e3\u5982\u4f55\u4f7f\u7528kubectl\u8fde\u63a5\u5230\u60a8\u7684\u96c6\u7fa4\u3002<\/li>\n<li>\u5728\u60a8\u7684\u5f00\u53d1\u73af\u5883\u4e2d\u53ef\u7528\u7684\u7248\u672c\u63a7\u5236\u5de5\u5177Git\u3002\u5982\u679c\u60a8\u5728Ubuntu\u4e0a\u5de5\u4f5c\uff0c\u53ef\u4ee5\u53c2\u8003\u5728Ubuntu 22.04\u4e0a\u5b89\u88c5Git\u3002<\/li>\n<li>\u5728\u60a8\u7684\u5f00\u53d1\u73af\u5883\u4e2d\u4e5f\u53ef\u7528\u7684Kubernetes Helm\u5305\u7ba1\u7406\u5668\u3002\u60a8\u53ef\u4ee5\u53c2\u8003\u5982\u4f55\u4f7f\u7528Helm\u5b89\u88c5\u8f6f\u4ef6\u6765\u5728\u672c\u5730\u5b89\u88c5Helm\u3002<\/li>\n<\/ul>\n<h2>\u7b2c\u4e00\u6b65 &#8211; \u901a\u8fc7Helm\u5b89\u88c5Metrics Server<\/h2>\n<p>\u9996\u5148\uff0c\u60a8\u53ef\u4ee5\u5c06metrics-server\u5b58\u50a8\u5e93\u6dfb\u52a0\u5230\u60a8\u7684helm\u8f6f\u4ef6\u5305\u5217\u8868\u4e2d\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528helm repo add\u547d\u4ee4\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\">helm repo <span class=\"token function\">add<\/span> metrics-server https:\/\/kubernetes-sigs.github.io\/metrics-server<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u4e0b\u4e00\u6b65\uff0c\u4f7f\u7528helm repo update\u547d\u4ee4\u6765\u5237\u65b0\u53ef\u7528\u7684\u8f6f\u4ef6\u5305\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\">helm repo update metrics-server<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<div class=\"secondary-code-label\" title=\"\u8f93\u51fa\">\u8f93\u51fa<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>Hang tight while we grab the latest from your chart repositories&#8230; &#8230;Successfully got an update from the &#8220;metrics-server&#8221; chart repository Update Complete. \u2388Happy Helming!\u2388<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u65e2\u7136\u60a8\u5df2\u7ecf\u5c06\u5b58\u50a8\u5e93\u6dfb\u52a0\u5230Helm\u4e2d\uff0c\u60a8\u73b0\u5728\u53ef\u4ee5\u5c06metrics-server\u6dfb\u52a0\u5230\u60a8\u7684Kubernetes\u90e8\u7f72\u4e2d\u3002\u60a8\u53ef\u4ee5\u5728\u8fd9\u91cc\u7f16\u5199\u81ea\u5df1\u7684\u90e8\u7f72\u914d\u7f6e\uff0c\u4f46\u672c\u6559\u7a0b\u5c06\u6309\u7167Silicon Cloud\u7684Kubernetes\u5165\u95e8\u5957\u4ef6\u8fdb\u884c\uff0c\u8be5\u5957\u4ef6\u5305\u542b\u4e86metrics-server\u7684\u914d\u7f6e\u3002<\/p>\n<p>\u4e3a\u4e86\u505a\u5230\u8fd9\u4e00\u70b9\uff0c\u8bf7\u514b\u9686Kubernetes\u5165\u95e8\u5957\u4ef6\u7684Git\u4ed3\u5e93\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\"><span class=\"token function\">git<\/span> clone https:\/\/github.com\/digitalocean\/Kubernetes-Starter-Kit-Developers.git<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>Metrics-Server\u7684\u914d\u7f6e\u6587\u4ef6\u4f4d\u4e8eKubernetes-Starter-Kit-Developers\/09-scaling-application-workloads\/assets\/manifests\/metrics-server-values-v3.8.2.yaml\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528nano\u6216\u60a8\u559c\u6b22\u7684\u6587\u672c\u7f16\u8f91\u5668\u67e5\u770b\u6216\u7f16\u8f91\u5b83\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\"><span class=\"token function\">nano<\/span> Kubernetes-Starter-Kit-Developers\/09-scaling-application-workloads\/assets\/manifests\/metrics-server-values-v3.8.2.yaml<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u8fd9\u5305\u542b\u4e86\u51e0\u4e2a\u80a1\u7968\u53c2\u6570\u3002\u8bf7\u6ce8\u610f\uff0c\u526f\u672c\u662f\u4e00\u4e2a\u56fa\u5b9a\u503c\uff0c\u4e3a2\u3002<\/p>\n<div>metrics-server-values-v3.8.2.yaml\u7684\u6307\u6807\u670d\u52a1\u5668\u503c\u4e3av3.8.2\u7684\u6587\u4ef6\u3002<\/div>\n<h2>Starter Kit metrics-server \u914d\u7f6e<\/h2>\n<p>\u53c2\u8003: <a href=\"https:\/\/github.com\/kubernetes-sigs\/metrics-server\/blob\/metrics-server-helm-chart-3.8.2\/charts\/metrics-server\" target=\"_blank\">Metrics Server GitHub<\/a><\/p>\n<pre class=\"post-pre\"><code>## Starter Kit metrics-server \u914d\u7f6e\r\n## \u53c2\u8003: https:\/\/github.com\/kubernetes-sigs\/metrics-server\/blob\/metrics-server-helm-chart-3.8.2\/charts\/metrics-server\r\n##\r\n\r\n# \u8981\u8fd0\u884c\u7684 metrics-server \u526f\u672c\u6570\u91cf\r\nreplicas: <mark>2<\/mark>\r\n\r\napiService:\r\n  # \u6307\u5b9a\u662f\u5426\u5e94\u521b\u5efa v1beta1.metrics.k8s.io API \u670d\u52a1\u3002\r\n  #\r\n  # \u60a8\u901a\u5e38\u5e0c\u671b\u542f\u7528\u6b64\u9009\u9879\uff01\u5982\u679c\u7981\u7528 API \u670d\u52a1\u521b\u5efa\uff0c\u5219\u5fc5\u987b\u5728\u6b64\u56fe\u8868\u4e4b\u5916\u7ba1\u7406\u5b83\uff0c\r\n  # \u4f8b\u5982\uff0c\u4f7f\u6c34\u5e73 Pod \u81ea\u52a8\u7f29\u653e\u4e0e\u6b64\u7248\u672c\u4e00\u8d77\u5de5\u4f5c\u3002\r\n  create: true\r\n\r\nhostNetwork:\r\n  # \u6307\u5b9a metrics-server \u662f\u5426\u5e94\u4ee5 hostNetwork \u6a21\u5f0f\u542f\u52a8\u3002\r\n  #\r\n  # \u5982\u679c\u60a8\u4e3a Pod \u4f7f\u7528\u5907\u7528\u8986\u76d6\u7f51\u7edc\u4e14\r\n  # API \u670d\u52a1\u5668\u65e0\u6cd5\u4e0e metrics-server \u901a\u4fe1\uff0c\u5219\u9700\u8981\u542f\u7528\u6b64\u9009\u9879\u3002\u4f8b\u5982\uff0c\r\n  # \u5982\u679c\u5728 EKS \u4e0a\u4f7f\u7528 Weave \u7f51\u7edc\uff0c\u5219\u9700\u8981\u6b64\u9009\u9879\r\n  enabled: false<\/code><\/pre>\n<p>\u8bf7\u53c2\u8003 Metrics Server \u56fe\u8868\u9875\u9762\u4e0a\u7684\u8bf4\u660e\uff0c\u4e86\u89e3 metrics-server \u7684\u53ef\u7528\u53c2\u6570\u3002<\/p>\n<div class=\"post-conf-note\">\n<p class=\"post-conf-desc\">\u6ce8\u610f\uff1a\u5728\u5c06 Kubernetes \u90e8\u7f72\u4e0e\u6b63\u5728\u8fd0\u884c\u7684 Kubernetes \u7248\u672c\u5339\u914d\u65f6\uff0c\u60a8\u9700\u8981\u975e\u5e38\u5c0f\u5fc3\uff0c\u800c helm chart \u672c\u8eab\u4e5f\u5177\u6709\u7248\u672c\u63a7\u5236\u4ee5\u5f3a\u5236\u6267\u884c\u6b64\u64cd\u4f5c\u3002\u5f53\u524d\u7684\u4e0a\u6e38 helm chart \u7248\u672c\u4e3a 3.8.2\uff0c\u53ef\u90e8\u7f72 0.6.1 \u7248\u672c\u7684 metrics-server \u672c\u8eab\u3002\u6839\u636e Metrics Server \u517c\u5bb9\u6027\u77e9\u9635\uff0c\u60a8\u53ef\u4ee5\u770b\u5230 0.6.x \u7248\u672c\u652f\u6301 Kubernetes 1.19+\u3002\u5728\u60a8\u5ba1\u67e5\u6587\u4ef6\u5e76\u8fdb\u884c\u4efb\u4f55\u66f4\u6539\u540e\uff0c\u60a8\u53ef\u4ee5\u7ee7\u7eed\u90e8\u7f72 metrics-server\uff0c\u65b9\u6cd5\u662f\u5c06\u6b64\u6587\u4ef6\u4e0e helm install \u547d\u4ee4\u4e00\u8d77\u63d0\u4f9b\u3002<\/p>\n<\/div>\n<p>\u8981\u90e8\u7f72 Metrics Server\uff0c\u8bf7\u6267\u884c\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<ol>\n<li data-prefix=\"$\"><span class=\"token assign-left variable\">HELM_CHART_VERSION<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">&#8220;3.8.2&#8221;<\/span><\/li>\n<li data-prefix=\"$\"><\/li>\n<li data-prefix=\"$\">helm <span class=\"token function\">install<\/span> metrics-server metrics-server\/metrics-server <span class=\"token parameter variable\">&#8211;version<\/span> <span class=\"token string\">&#8220;<span class=\"token variable\">$HELM_CHART_VERSION<\/span>&#8220;<\/span> <span class=\"token punctuation\">\\<\/span><\/li>\n<li data-prefix=\"$\"><span class=\"token parameter variable\">&#8211;namespace<\/span> metrics-server <span class=\"token punctuation\">\\<\/span><\/li>\n<li data-prefix=\"$\">&#8211;create-namespace <span class=\"token punctuation\">\\<\/span><\/li>\n<li data-prefix=\"$\"><span class=\"token parameter variable\">-f<\/span> <span class=\"token string\">&#8220;Kubernetes-Starter-Kit-Developers\/09-scaling-application-workloads\/assets\/manifests\/metrics-server-values-v<span class=\"token variable\">${HELM_CHART_VERSION}<\/span>.yaml&#8221;<\/span><\/li>\n<\/ol>\n<p>\u8fd9\u5c06\u5728\u60a8\u914d\u7f6e\u7684 Kubernetes \u96c6\u7fa4\u4e2d\u90e8\u7f72 Metrics \u670d\u52a1\u5668\u3002<\/p>\n<div class=\"secondary-code-label\" title=\"\u8f93\u51fa\">\n<pre class=\"post-pre\"><code>NAME: metrics-server\r\nLAST DEPLOYED: Wed May 25 11:54:43 2022\r\nNAMESPACE: metrics-server\r\nSTATUS: deployed\r\nREVISION: 1\r\nTEST SUITE: None\r\nNOTES:\r\n***********************************************************************\r\n* Metrics Server                                                   *\r\n***********************************************************************\r\nChart version: 3.8.2\r\nApp version: 0.6.1\r\nImage tag: k8s.gcr.io\/metrics-server\/metrics-server:v0.6.1\r\n***********************************************************************<\/code><\/pre>\n<\/div>\n<p>\u90e8\u7f72\u5b8c\u6210\u540e\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528 helm ls \u547d\u4ee4\u6765\u9a8c\u8bc1 metrics-server \u662f\u5426\u5df2\u6dfb\u52a0\u5230\u60a8\u7684\u90e8\u7f72\u4e2d\u3002<\/p>\n<ol>\n<li data-prefix=\"$\">helm <span class=\"token function\">ls<\/span> <span class=\"token parameter variable\">-n<\/span> metrics-server<\/li>\n<\/ol>\n<div class=\"secondary-code-label\" title=\"\u8f93\u51fa\">\n<pre class=\"post-pre\"><code>NAME            NAMESPACE       REVISION        UPDATED                                 STATUS          CHART                   APP VERSION\r\nmetrics-server  metrics-server  1               2022-02-24 14:58:23.785875 +0200 EET   deployed        metrics-server-3.8.2    0.6.1<\/code><\/pre>\n<\/div>\n<p>\u63a5\u4e0b\u6765\uff0c\u60a8\u53ef\u4ee5\u68c0\u67e5\u90e8\u7f72\u5230 metrics-server \u547d\u540d\u7a7a\u95f4\u7684\u6240\u6709 Kubernetes \u8d44\u6e90\u7684\u72b6\u6001\u3002<\/p>\n<ol>\n<li data-prefix=\"$\">kubectl get all <span class=\"token parameter variable\">-n<\/span> metrics-server<\/li>\n<\/ol>\n<p>\u6839\u636e\u60a8\u6240\u90e8\u7f72\u7684\u914d\u7f6e\uff0cdeployment.apps \u548c replicaset.apps \u7684\u503c\u5e94\u8be5\u8ba1\u7b97\u51fa\u4e24\u4e2a\u53ef\u7528\u5b9e\u4f8b\u3002<\/p>\n<div class=\"secondary-code-label\" title=\"\u8f93\u51fa\">\n<pre class=\"post-pre\"><code>NAME                                      READY   STATUS    RESTARTS   AGE\r\npod\/metrics-server-694d47d564-9sp5h       1\/1     Running   0          8m54s\r\npod\/metrics-server-694d47d564-cc4m2       1\/1     Running   0          8m54s\r\n\r\nNAME                         TYPE        CLUSTER-IP     EXTERNAL-IP   PORT(S)   AGE\r\nservice\/metrics-server       ClusterIP   10.245.92.63   <none>        443\/TCP   8m54s\r\n\r\nNAME                                 READY   UP-TO-DATE   AVAILABLE   AGE\r\ndeployment.apps\/metrics-server       2\/2     2            2           8m55s\r\n\r\nNAME                                            DESIRED   CURRENT   READY   AGE\r\nreplicaset.apps\/metrics-server-694d47d564       2         2         2       8m55s<\/code><\/pre>\n<\/div>\n<p>\u60a8\u73b0\u5728\u5df2\u5c06\u6307\u6807\u670d\u52a1\u5668\u90e8\u7f72\u5230\u60a8\u7684 Kubernetes \u96c6\u7fa4\u4e2d\u3002\u4e0b\u4e00\u6b65\uff0c\u60a8\u5c06\u67e5\u770b HorizontalPodAutoscaler \u81ea\u5b9a\u4e49\u8d44\u6e90\u5b9a\u4e49\u7684\u4e00\u4e9b\u53c2\u6570\u3002<\/p>\n<h2>\u7b2c\u4e8c\u6b65 &#8211; \u4e86\u89e3\u6c34\u5e73 Pod \u81ea\u52a8\u7f29\u653e\u5668 (HPA)<\/h2>\n<p>\u5230\u76ee\u524d\u4e3a\u6b62\uff0c\u60a8\u7684\u914d\u7f6e\u90fd\u4f7f\u7528\u4e86\u4e00\u4e2a\u56fa\u5b9a\u503c\u6765\u90e8\u7f72 ReplicaSet \u5b9e\u4f8b\u7684\u6570\u91cf\u3002\u5728\u8fd9\u4e00\u6b65\u4e2d\uff0c\u60a8\u5c06\u5b66\u4e60\u5982\u4f55\u5b9a\u4e49\u4e00\u4e2a HorizontalPodAutoscaler CRD\uff0c\u4ee5\u4fbf\u8be5\u503c\u53ef\u4ee5\u52a8\u6001\u589e\u52a0\u6216\u7f29\u5c0f\u3002<\/p>\n<p>\u4e00\u4e2a\u5178\u578b\u7684 HorizontalPodAutoscaler CRD \u7684\u6837\u5b50\u5982\u4e0b\uff1a<\/p>\n<p>crd.yaml \u7684\u542b\u4e49\u662f\u4ec0\u4e48\uff1f<\/p>\n<p>\u8fd9\u662f\u6587\u7ae0\u300a\u5982\u4f55\u4f7f\u7528Metrics Server\u914d\u7f6eKubernetes\u6c34\u5e73Pod\u81ea\u52a8\u7f29\u653e\u5668\u300b\u7684\u7b2c3\u90e8\u5206\uff08\u51717\u90e8\u5206\uff09\u3002<\/p>\n<pre class=\"post-pre\"><code>apiVersion: autoscaling\/v2beta2\r\nkind: HorizontalPodAutoscaler\r\nmetadata:\r\n  name: my-app-hpa\r\nspec:\r\n  scaleTargetRef:\r\n    apiVersion: apps\/v1\r\n    kind: Deployment\r\n    name: my-app-deployment\r\n  minReplicas: 1\r\n  maxReplicas: 3\r\n  metrics:\r\n    - type: Resource\r\n      resource:\r\n        name: cpu\r\n        target:\r\n          type: Utilization\r\n          averageUtilization: 50\r\n<\/code><\/pre>\n<p>\u8fd9\u4e2a\u914d\u7f6e\u4e2d\u4f7f\u7528\u7684\u53c2\u6570\u5982\u4e0b\uff1a<\/p>\n<ul class=\"post-ul\">\n<li><strong>spec.scaleTargetRef<\/strong>\uff1a\u5bf9\u6b63\u5728\u7f29\u653e\u7684\u8d44\u6e90\u7684\u547d\u540d\u5f15\u7528\u3002<\/li>\n<li><strong>spec.minReplicas<\/strong>\uff1a\u81ea\u52a8\u7f29\u653e\u5668\u53ef\u4ee5\u7f29\u51cf\u5230\u7684\u526f\u672c\u6570\u91cf\u7684\u4e0b\u9650\u3002<\/li>\n<li><strong>spec.maxReplicas<\/strong>\uff1a\u526f\u672c\u6570\u91cf\u7684\u4e0a\u9650\u3002<\/li>\n<li><strong>spec.metrics.type<\/strong>\uff1a\u7528\u4e8e\u8ba1\u7b97\u6240\u9700\u526f\u672c\u6570\u91cf\u7684\u6307\u6807\u3002\u6b64\u793a\u4f8b\u4f7f\u7528Resource\u7c7b\u578b\uff0c\u5b83\u544a\u8bc9HPA\u57fa\u4e8e\u5e73\u5747CPU\uff08\u6216\u5185\u5b58\uff09\u5229\u7528\u7387\u6765\u6269\u5c55\u90e8\u7f72\u3002averageUtilization\u8bbe\u7f6e\u4e3a\u9608\u503c50\u3002<\/li>\n<\/ul>\n<p>\u4f60\u6709\u4e24\u79cd\u9009\u62e9\u6765\u521b\u5efa\u5e94\u7528\u90e8\u7f72\u7684\u9ad8\u6027\u80fd\u67b6\u6784\uff08HPA\uff09\uff1a<\/p>\n<ol>\n<li>\u4f7f\u7528 kubectl autoscale \u547d\u4ee4\u5728\u73b0\u6709\u7684\u90e8\u7f72\u4e0a\u8fdb\u884c\u81ea\u52a8\u7f29\u653e\u3002<\/li>\n<li>\u521b\u5efa\u4e00\u4e2a HPA YAML \u6e05\u5355\uff0c\u7136\u540e\u4f7f\u7528 kubectl \u5c06\u66f4\u6539\u5e94\u7528\u5230\u60a8\u7684\u96c6\u7fa4\u3002<\/li>\n<\/ol>\n<p>\u4f60\u5c06\u9996\u5148\u5c1d\u8bd5\u9009\u9879#1\uff0c\u4f7f\u7528Silicon Cloud Kubernetes\u5165\u95e8\u5957\u4ef6\u4e2d\u7684\u53e6\u4e00\u79cd\u914d\u7f6e\u3002\u5176\u4e2d\u5305\u542b\u4e00\u4e2a\u540d\u4e3amyapp-test.yaml\u7684\u90e8\u7f72\u6587\u4ef6\uff0c\u901a\u8fc7\u521b\u5efa\u4e00\u4e9b\u4efb\u610f\u7684CPU\u8d1f\u8f7d\u6765\u6f14\u793aHPA\u7684\u5de5\u4f5c\u60c5\u51b5\u3002<\/p>\n<p>\u4f60\u53ef\u4ee5\u4f7f\u7528nano\u6216\u4f60\u559c\u6b22\u7684\u6587\u672c\u7f16\u8f91\u5668\u6765\u67e5\u770b\u90a3\u4e2a\u6587\u4ef6\u3002<\/p>\n<pre class=\"post-pre\"><code>$ nano Kubernetes-Starter-Kit-Developers\/09-scaling-application-workloads\/assets\/manifests\/hpa\/metrics-server\/myapp-test.yaml<\/code><\/pre>\n<p>\u6211\u7684\u5e94\u7528\u7a0b\u5e8f\u6d4b\u8bd5\u6587\u4ef6 myapp-test.yaml<\/p>\n<pre class=\"post-pre\"><code>apiVersion: apps\/v1\r\nkind: Deployment\r\nmetadata:\r\n  name: myapp-test\r\nspec:\r\n  selector:\r\n    matchLabels:\r\n      run: myapp-test\r\n  replicas: 1\r\n  template:\r\n    metadata:\r\n      labels:\r\n        run: myapp-test\r\n    spec:\r\n      containers:\r\n        - name: busybox\r\n          image: busybox\r\n          resources:\r\n            limits:\r\n              cpu: 50m\r\n            requests:\r\n              cpu: 20m\r\n          command: [\"sh\", \"-c\"]\r\n          args:\r\n            - while [ 1 ]; do\r\n              echo \"Test\";\r\n              sleep 0.01;\r\n              done\r\n<\/code><\/pre>\n<p>\u8bf7\u6ce8\u610f\u6587\u4ef6\u7684\u6700\u540e\u51e0\u884c\u3002\u5b83\u4eec\u5305\u542b\u4e00\u4e9bshell\u8bed\u6cd5\uff0c\u53ef\u4ee5\u6bcf\u79d2\u91cd\u590d\u6253\u5370&#8221;Test&#8221;\u4e00\u767e\u6b21\uff0c\u4ee5\u6a21\u62df\u8d1f\u8f7d\u3002\u5b8c\u6210\u6587\u4ef6\u5ba1\u6838\u540e\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528kubectl\u5c06\u5176\u90e8\u7f72\u5230\u60a8\u7684\u96c6\u7fa4\u4e2d\u3002<\/p>\n<pre class=\"post-pre\"><code>$ kubectl apply -f Kubernetes-Starter-Kit-Developers\/09-scaling-application-workloads\/assets\/manifests\/hpa\/metrics-server\/myapp-test.yaml<\/code><\/pre>\n<p>\u63a5\u4e0b\u6765\uff0c\u4f7f\u7528 kubectl autoscale \u521b\u5efa\u4e00\u4e2a\u9488\u5bf9 myapp-test \u90e8\u7f72\u7684 HorizontalPodAutoscaler\u3002<\/p>\n<pre class=\"post-pre\"><code>$ kubectl autoscale deployment myapp-test --cpu-percent=50 --min=1 --max=3<\/code><\/pre>\n<p>\u8bf7\u6ce8\u610f\u4f20\u9012\u7ed9\u6b64\u547d\u4ee4\u7684\u53c2\u6570 &#8211; \u8fd9\u610f\u5473\u7740\u5f53CPU\u5229\u7528\u7387\u8fbe\u523050\uff05\u65f6\uff0c\u60a8\u7684\u90e8\u7f72\u5c06\u57281\u52303\u4e2a\u526f\u672c\u4e4b\u95f4\u8fdb\u884c\u6269\u5c55\u3002<\/p>\n<p>\u4f60\u53ef\u4ee5\u901a\u8fc7\u8fd0\u884c kubectl get hpa \u6765\u68c0\u67e5\u662f\u5426\u5df2\u521b\u5efa HPA \u8d44\u6e90\u3002<\/p>\n<pre class=\"post-pre\"><code>$ kubectl get hpa<\/code><\/pre>\n<p>\u6700\u7ec8\u8f93\u51fa\u7684&#8221;\u76ee\u6807&#8221;\u680f\u5c06\u663e\u793a\u5f53\u524d\u4f7f\u7528\u91cf\u5360\u76ee\u6807\u4f7f\u7528\u91cf\u7684\u767e\u5206\u6bd4\u3002<\/p>\n<div class=\"secondary-code-label\" title=\"\u8f93\u51fa\">\u8f93\u51fa<\/div>\n<pre class=\"post-pre\"><code>NAME         REFERENCE           TARGETS    MINPODS   MAXPODS   REPLICAS   AGE\r\nmyapp-test   Deployment\/myapp-test   240%\/50%   1         3         3          52s<\/code><\/pre>\n<div class=\"post-conf-note\">\n<p class=\"post-conf-desc\">\u6ce8\u610f\uff1a<\/p>\n<p>\u76ee\u6807\u5217\u7684\u503c\u5728\u4e00\u6bb5\u65f6\u95f4\u5185\uff08\u5927\u7ea615\u79d2\uff09\u5c06\u663e\u793a\u4e3a&lt;unknown&gt;\/50%\u3002\u8fd9\u662f\u6b63\u5e38\u7684\uff0c\u56e0\u4e3aHPA\u9700\u8981\u9010\u6e10\u6536\u96c6\u5e73\u5747\u503c\uff0c\u800c\u5728\u7b2c\u4e00\u4e2a15\u79d2\u95f4\u9694\u4e4b\u524d\uff0c\u5b83\u6ca1\u6709\u8db3\u591f\u7684\u6570\u636e\u3002\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0cHPA\u6bcf\u969415\u79d2\u68c0\u67e5\u4e00\u6b21\u5ea6\u91cf\u3002\u60a8\u8fd8\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528kubectl describe\u547d\u4ee4\u89c2\u5bdfHPA\u751f\u6210\u7684\u5df2\u8bb0\u5f55\u4e8b\u4ef6\u3002<\/p>\n<\/div>\n<pre class=\"post-pre\"><code>$ kubectl describe hpa myapp-test<\/code><\/pre>\n<div class=\"secondary-code-label\" title=\"\u8f93\u51fa\">\u8f93\u51fa<\/div>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u540d\u79f0: myapp-test \u547d\u540d\u7a7a\u95f4: default \u6807\u7b7e: &lt;none&gt; \u6ce8\u91ca: &lt;none&gt; \u521b\u5efa\u65f6\u95f4: Mon, 28 May 2022 10:10:50 -0800 \u5f15\u7528: Deployment\/myapp-test \u6307\u6807: ( \u5f53\u524d \/ \u76ee\u6807 ) pods\u4e0a\u7684cpu\u8d44\u6e90 (\u5360\u8bf7\u6c42\u7684\u767e\u5206\u6bd4): 240% (48m) \/ 50% \u6700\u5c0f\u526f\u672c\u6570: 1 \u6700\u5927\u526f\u672c\u6570: 3 \u90e8\u7f72pods: 3 \u5f53\u524d \/ 3 \u671f\u671b &#8230; \u4e8b\u4ef6: \u7c7b\u578b \u539f\u56e0 \u65f6\u95f4 \u6765\u6e90 \u6d88\u606f &#8212;- &#8212;&#8212; &#8212;- &#8212;- &#8212;&#8212;- Normal SuccessfulRescale 17s horizontal-pod-autoscaler \u65b0\u5927\u5c0f: 2; \u539f\u56e0: cpu\u8d44\u6e90\u5229\u7528\u7387 (\u5360\u8bf7\u6c42\u7684\u767e\u5206\u6bd4) \u8d85\u8fc7\u76ee\u6807 Normal SuccessfulRescale 37s horizontal-pod-autoscaler \u65b0\u5927\u5c0f: 3; \u539f\u56e0: cpu\u8d44\u6e90\u5229\u7528\u7387 (\u5360\u8bf7\u6c42\u7684\u767e\u5206\u6bd4) \u8d85\u8fc7\u76ee\u6807<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u8fd9\u662fkubectl\u81ea\u52a8\u7f29\u653e\u7684\u65b9\u6cd5\u3002\u5728\u751f\u4ea7\u73af\u5883\u4e2d\uff0c\u901a\u5e38\u5e94\u8be5\u4f7f\u7528\u4e13\u95e8\u7684YAML\u6e05\u5355\u6765\u5b9a\u4e49\u6bcf\u4e2aHPA\uff0c\u800c\u4e0d\u662f\u4f7f\u7528\u8fd9\u79cd\u65b9\u6cd5\u3002\u8fd9\u6837\uff0c\u60a8\u53ef\u4ee5\u901a\u8fc7\u5c06\u6e05\u5355\u63d0\u4ea4\u5230Git\u4ed3\u5e93\u5e76\u6839\u636e\u9700\u8981\u8fdb\u884c\u4fee\u6539\u6765\u8ddf\u8e2a\u66f4\u6539\u3002<\/p>\n<p>\u5728\u672c\u6559\u7a0b\u7684\u6700\u540e\u4e00\u6b65\uff0c\u60a8\u5c06\u901a\u8fc7\u4e00\u4e2a\u793a\u4f8b\u6765\u8d70\u4e00\u904d\u3002\u5728\u7ee7\u7eed\u4e4b\u524d\uff0c\u5220\u9664myapp-test\u7684\u90e8\u7f72\u548c\u76f8\u5e94\u7684HPA\u8d44\u6e90\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\">kubectl delete hpa myapp-test<\/li>\n<li data-prefix=\"$\">kubectl delete deployment myapp-test<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>&nbsp;<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<h2>\u6b65\u9aa4\u4e09 &#8211; \u901a\u8fc7\u5ea6\u91cf\u670d\u52a1\u5668\u81ea\u52a8\u7f29\u653e\u5e94\u7528\u7a0b\u5e8f<\/h2>\n<p>\u5728\u8fd9\u6700\u540e\u4e00\u6b65\u4e2d\uff0c\u60a8\u5c06\u5c1d\u8bd5\u4e24\u79cd\u4e0d\u540c\u7684\u65b9\u6cd5\u901a\u8fc7YAML\u6e05\u5355\u751f\u6210\u670d\u52a1\u5668\u8d1f\u8f7d\u5e76\u8fdb\u884c\u6269\u5c55\u3002<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u4e00\u4e2a\u5e94\u7528\u90e8\u7f72\u901a\u8fc7\u6267\u884c\u4e00\u4e9bCPU\u5bc6\u96c6\u578b\u8ba1\u7b97\u6765\u521b\u5efa\u6301\u7eed\u8d1f\u8f7d\u3002<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\u4e00\u4e2aShell\u811a\u672c\u901a\u8fc7\u8fde\u7eed\u5feb\u901f\u53d1\u51faHTTP\u8c03\u7528\u6765\u6a21\u62df\u5916\u90e8\u8d1f\u8f7d\uff0c\u7528\u4e8e\u4e00\u4e2aWeb\u5e94\u7528\u7a0b\u5e8f\u3002<\/ol>\n<h3>\u6052\u5b9a\u8d1f\u8f7d\u6d4b\u8bd5<\/h3>\n<p>\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u60a8\u5c06\u4f7f\u7528Python\u521b\u5efa\u4e00\u4e2a\u793a\u4f8b\u5e94\u7528\u7a0b\u5e8f\uff0c\u6267\u884c\u4e00\u4e9bCPU\u5bc6\u96c6\u578b\u8ba1\u7b97\u3002\u7c7b\u4f3c\u4e8e\u4e0a\u4e00\u6b65\u4e2d\u7684shell\u811a\u672c\uff0c\u8fd9\u6bb5Python\u4ee3\u7801\u5305\u542b\u5728\u5165\u95e8\u5957\u4ef6\u7684\u793a\u4f8b\u6e05\u5355\u4e4b\u4e00\u4e2d\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528nano\u6216\u60a8\u6700\u559c\u6b22\u7684\u6587\u672c\u7f16\u8f91\u5668\u6253\u5f00constant-load-deployment-test.yaml\u6587\u4ef6\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\"><span class=\"token function\">nano<\/span> Kubernetes-Starter-Kit-Developers\/09-scaling-application-workloads\/assets\/manifests\/hpa\/metrics-server\/constant-load-deployment-test.yaml<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>&nbsp;<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<div>\u5e38\u91cf\u8d1f\u8f7d\u90e8\u7f72\u6d4b\u8bd5.yaml<\/div>\n<pre class=\"post-pre\"><code>---\r\napiVersion: v1\r\nkind: ConfigMap\r\nmetadata:\r\n  name: python-test-code-configmap\r\ndata:\r\n  entrypoint.sh: |-\r\n    #!\/usr\/bin\/env python\r\n\r\n    <mark>import math<\/mark>\r\n\r\n    <mark>while True:<\/mark>\r\n      <mark>x = 0.0001<\/mark>\r\n      <mark>for i in range(1000000):<\/mark>\r\n        <mark>x = x + math.sqrt(x)<\/mark>\r\n        <mark>print(x)<\/mark>\r\n      <mark>print(\"OK!\")<\/mark>\r\n\r\n---\r\napiVersion: apps\/v1\r\nkind: Deployment\r\nmetadata:\r\n  name: constant-load-deployment-test\r\nspec:\r\n  selector:\r\n    matchLabels:\r\n      run: python-constant-load-test\r\n  replicas: 1\r\n  template:\r\n    metadata:\r\n      labels:\r\n        run: python-constant-load-test\r\n    spec:\r\n      containers:\r\n        - name: python-runtime\r\n          image: python:alpine3.15\r\n          resources:\r\n            limits:\r\n              cpu: 50m\r\n            requests:\r\n              cpu: 20m\r\n          command:\r\n            - \/bin\/entrypoint.sh\r\n          volumeMounts:\r\n            - name: python-test-code-volume\r\n              mountPath: \/bin\/entrypoint.sh\r\n              readOnly: true\r\n              subPath: entrypoint.sh\r\n      volumes:\r\n        - name: python-test-code-volume\r\n          configMap:\r\n            defaultMode: 0700\r\n            name: python-test-code-configmap\r\n<\/code><\/pre>\n<p>\u4ee5\u4e0a\u7a81\u51fa\u663e\u793a\u4e86\u4e00\u4e2aPython\u4ee3\u7801\uff0c\u5b83\u91cd\u590d\u751f\u6210\u4efb\u610f\u5e73\u65b9\u6839\u3002\u90e8\u7f72\u5c06\u83b7\u53d6\u4e00\u4e2a\u6258\u7ba1\u6240\u9700Python\u8fd0\u884c\u65f6\u7684Docker\u955c\u50cf\uff0c\u7136\u540e\u5c06ConfigMap\u9644\u52a0\u5230\u6258\u7ba1\u4e4b\u524d\u663e\u793a\u7684\u793a\u4f8bPython\u811a\u672c\u7684\u5e94\u7528Pod\u4e0a\u3002<\/p>\n<p>\u9996\u5148\uff0c\u4e3a\u8fd9\u4e2a\u90e8\u7f72\u521b\u5efa\u4e00\u4e2a\u72ec\u7acb\u7684\u547d\u540d\u7a7a\u95f4\uff08\u4ee5\u4fbf\u66f4\u597d\u5730\u89c2\u5bdf\uff09\uff0c\u7136\u540e\u901a\u8fc7kubectl\u90e8\u7f72\u5b83\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\">kubectl create ns hpa-constant-load<\/li>\n<li data-prefix=\"$\"><\/li>\n<li data-prefix=\"$\">kubectl apply <span class=\"token parameter variable\">-f<\/span> Kubernetes-Starter-Kit-Developers\/09-scaling-application-workloads\/assets\/manifests\/hpa\/metrics-server\/constant-load-deployment-test.yaml <span class=\"token parameter variable\">-n<\/span> hpa-constant-load<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>&nbsp;<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<div class=\"secondary-code-label\" title=\"Output\">\u8f93\u51fa<\/div>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>configmap\/python-test-code-configmap created deployment.apps\/constant-load-deployment-test created<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<div class=\"post-conf-note\">\n<p class=\"post-conf-desc\">\u6ce8\u610f<\/p>\n<div>\u6ce8\u610f\uff1a\u793a\u4f8b\u90e8\u7f72\u8fd8\u4e3a\u793a\u4f8b\u5e94\u7528\u7a0b\u5e8f\u7684Pod\u914d\u7f6e\u4e86\u8d44\u6e90\u8bf7\u6c42\u9650\u5236\u3002\u8fd9\u4e00\u70b9\u5f88\u91cd\u8981\uff0c\u56e0\u4e3aHPA\u903b\u8f91\u4f9d\u8d56\u4e8e\u8bbe\u7f6ePod\u7684\u8d44\u6e90\u8bf7\u6c42\u9650\u5236\u3002\u901a\u5e38\u60c5\u51b5\u4e0b\uff0c\u5efa\u8bae\u4e3a\u60a8\u6240\u6709\u7684\u5e94\u7528\u7a0b\u5e8fPod\u8bbe\u7f6e\u8d44\u6e90\u8bf7\u6c42\u9650\u5236\uff0c\u4ee5\u907f\u514d\u4e0d\u53ef\u9884\u6d4b\u7684\u74f6\u9888\u3002\u9a8c\u8bc1\u90e8\u7f72\u662f\u5426\u6210\u529f\u521b\u5efa\uff0c\u5e76\u4e14\u5df2\u7ecf\u542f\u52a8\u8fd0\u884c\u3002<\/div>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\">kubectl get deployments <span class=\"token parameter variable\">-n<\/span> hpa-constant-load<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>&nbsp;<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<div class=\"secondary-code-label\" title=\"Output\">\u8f93\u51fa<\/div>\n<p>\u8fd9\u662f\u6587\u7ae0\u300a\u5982\u4f55\u4f7f\u7528Metrics Server\u914d\u7f6eKubernetes\u6c34\u5e73Pod\u81ea\u52a8\u7f29\u653e\u5668\u300b\u7684\u7b2c5\u90e8\u5206\uff08\u51717\u90e8\u5206\uff09\u3002<\/p>\n<pre class=\"post-pre\"><code>NAME READY UP-TO-DATE AVAILABLE AGE\r\nconstant-load-deployment-test 1\/1 1 1 8s<\/code><\/pre>\n<p>\u63a5\u4e0b\u6765\uff0c\u60a8\u9700\u8981\u5728\u6b64\u96c6\u7fa4\u4e2d\u90e8\u7f72\u53e6\u4e00\u4e2a\u6c34\u5e73Pod\u81ea\u52a8\u7f29\u653e\u5668\uff08HPA\uff09\u3002\u5728constant-load-hpa-test.yaml\u4e2d\u6709\u4e00\u4e2a\u5339\u914d\u6b64\u573a\u666f\u7684\u793a\u4f8b\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528Nano\u6216\u60a8\u559c\u6b22\u7684\u6587\u672c\u7f16\u8f91\u5668\u6253\u5f00\u5b83\u3002<\/p>\n<pre class=\"post-pre\"><code>$ nano Kubernetes-Starter-Kit-Developers\/09-scaling-application-workloads\/assets\/manifests\/hpa\/metrics-server\/constant-load-hpa-test.yaml -n hpa-constant-load<\/code><\/pre>\n<p>\u6052\u5b9a\u8d1f\u8f7d HPA \u6d4b\u8bd5.yaml<\/p>\n<pre class=\"post-pre\"><code>apiVersion: autoscaling\/v2beta2\r\nkind: HorizontalPodAutoscaler\r\nmetadata:\r\n  name: constant-load-test\r\nspec:\r\n  scaleTargetRef:\r\n    apiVersion: apps\/v1\r\n    kind: Deployment\r\n    name: constant-load-deployment-test\r\n  minReplicas: 1\r\n  maxReplicas: 3\r\n  metrics:\r\n    - type: Resource\r\n      resource:\r\n        name: cpu\r\n        target:\r\n          type: Utilization\r\n          averageUtilization: 50<\/code><\/pre>\n<p>\u901a\u8fc7\u4f7f\u7528kubectl\u8fdb\u884c\u90e8\u7f72\uff1a<\/p>\n<pre class=\"post-pre\"><code>$ kubectl apply -f Kubernetes-Starter-Kit-Developers\/09-scaling-application-workloads\/assets\/manifests\/hpa\/metrics-server\/constant-load-hpa-test.yaml -n hpa-constant-load<\/code><\/pre>\n<p>\u8fd9\u5c06\u521b\u5efa\u4e00\u4e2a\u9488\u5bf9\u6837\u672cPython\u90e8\u7f72\u7684HPA\u8d44\u6e90\u3002\u53ef\u4ee5\u901a\u8fc7<code>kubectl get hpa<\/code>\u547d\u4ee4\u6765\u68c0\u67e5constant-load-test HPA\u7684\u72b6\u6001\u3002<\/p>\n<pre class=\"post-pre\"><code>$ kubectl get hpa constant-load-test -n hpa-constant-load<\/code><\/pre>\n<p>\u8bf7\u6ce8\u610f\u53c2\u8003\u5217\u9488\u5bf9\u5e38\u91cf\u8d1f\u8f7d\u90e8\u7f72\u6d4b\u8bd5\uff0c\u4ee5\u53ca\u76ee\u6807\u5217\u663e\u793a\u5f53\u524dCPU\u8d44\u6e90\u8bf7\u6c42\u4e0e\u9608\u503c\u6570\u503c\u7684\u5bf9\u6bd4\uff0c\u5982\u4e0a\u4e00\u4e2a\u793a\u4f8b\u6240\u793a\u3002<\/p>\n<div class=\"secondary-code-label\" title=\"\u8f93\u51fa\">\u8f93\u51fa<\/div>\n<pre class=\"post-pre\"><code>NAME REFERENCE TARGETS MINPODS MAXPODS REPLICAS AGE\r\nconstant-load-test Deployment\/constant-load-deployment-test 255%\/50% 1 3 3 49s<\/code><\/pre>\n<p>\u4f60\u53ef\u80fd\u8fd8\u4f1a\u6ce8\u610f\u5230\u793a\u4f8b\u5e94\u7528\u7684\u90e8\u7f72\u4e2d\uff0c\u6839\u636eHPA\u81ea\u5b9a\u4e49\u8d44\u6e90\u5b9a\u4e49\uff08CRD\uff09\u89c4\u8303\uff0cREPLICAS\u5217\u7684\u503c\u4ece1\u589e\u52a0\u52303\u3002\u8fd9\u4e00\u53d8\u5316\u53d1\u751f\u5f97\u975e\u5e38\u5feb\uff0c\u56e0\u4e3a\u8be5\u793a\u4f8b\u4e2d\u4f7f\u7528\u7684\u5e94\u7528\u7a0b\u5e8f\u80fd\u591f\u8fc5\u901f\u751f\u6210CPU\u8d1f\u8f7d\u3002\u548c\u4e4b\u524d\u7684\u793a\u4f8b\u4e00\u6837\uff0c\u4f60\u4e5f\u53ef\u4ee5\u4f7f\u7528<code>kubectl describe hpa -n hpa-constant-load<\/code>\u547d\u4ee4\u6765\u67e5\u770b\u8bb0\u5f55\u7684HPA\u4e8b\u4ef6\u3002<\/p>\n<h3>\u5916\u90e8\u8d1f\u8f7d\u6d4b\u8bd5<\/h3>\n<p>\u4e00\u4e2a\u66f4\u6709\u8da3\u548c\u771f\u5b9e\u7684\u573a\u666f\u662f\u89c2\u5bdf\u5916\u90e8\u8d1f\u8f7d\u7684\u4ea7\u751f\u4f4d\u7f6e\u3002\u5bf9\u4e8e\u8fd9\u4e2a\u6700\u540e\u7684\u793a\u4f8b\uff0c\u60a8\u5c06\u4f7f\u7528\u4e0d\u540c\u7684\u547d\u540d\u7a7a\u95f4\u548c\u6e05\u5355\u96c6\u6765\u907f\u514d\u91cd\u7528\u4e4b\u524d\u6d4b\u8bd5\u4e2d\u7684\u4efb\u4f55\u6570\u636e\u3002<\/p>\n<p>\u672c\u4f8b\u5c06\u4f7f\u7528\u5f53\u524d\u6837\u672c\u670d\u52a1\u5668\u7684\u5f15\u7528\u3002\u6bcf\u5f53\u5411\u8be5\u670d\u52a1\u5668\u53d1\u9001HTTP\u8bf7\u6c42\u65f6\uff0c\u5b83\u5c06\u4f5c\u4e3a\u54cd\u5e94\u53d1\u9001\u4e0d\u540c\u7684\u5f15\u7528\u3002\u60a8\u5c06\u901a\u8fc7\u6bcf1\u6beb\u79d2\u53d1\u9001HTTP\u8bf7\u6c42\u6765\u5bf9\u96c6\u7fa4\u8fdb\u884c\u8d1f\u8f7d\u6d4b\u8bd5\u3002\u6b64\u90e8\u7f72\u5df2\u5305\u542b\u5728quote_deployment.yaml\u6587\u4ef6\u4e2d\u3002\u8bf7\u4f7f\u7528nano\u6216\u60a8\u559c\u6b22\u7684\u6587\u672c\u7f16\u8f91\u5668\u67e5\u770b\u6b64\u6587\u4ef6\u3002<\/p>\n<pre class=\"post-pre\"><code>$ nano Kubernetes-Starter-Kit-Developers\/09-scaling-application-workloads\/assets\/manifests\/hpa\/metrics-server\/quote_deployment.yaml<\/code><\/pre>\n<p>\u5f15\u7528\u90e8\u7f72.yaml<\/p>\n<pre class=\"post-pre\"><code>---\r\napiVersion: apps\/v1\r\nkind: Deployment\r\nmetadata:\r\n  name: quote\r\nspec:\r\n  replicas: 1\r\n  selector:\r\n    matchLabels:\r\n      app: quote\r\n  template:\r\n    metadata:\r\n      labels:\r\n        app: quote\r\n    spec:\r\n      containers:\r\n        - name: quote\r\n          image: docker.io\/datawire\/quote:0.4.1\r\n          ports:\r\n            - name: http\r\n              containerPort: 8080\r\n          resources:\r\n            requests:\r\n              cpu: 100m\r\n              memory: 50Mi\r\n            limits:\r\n              cpu: 200m\r\n              memory: 100Mi\r\n\r\n---\r\napiVersion: v1\r\nkind: Service\r\nmetadata:\r\n  name: quote\r\nspec:\r\n  ports:\r\n    - name: http\r\n      port: 80\r\n      targetPort: 8080\r\n  selector:\r\n    app: quote<\/code><\/pre>\n<p>\u8bf7\u6ce8\u610f\uff0c\u8fd9\u6b21\u5b9e\u9645\u7684HTTP\u67e5\u8be2\u811a\u672c\u4e0d\u5305\u542b\u5728\u6e05\u5355\u4e2d &#8211; \u6b64\u6e05\u5355\u4ec5\u7528\u4e8e\u914d\u7f6e\u5e94\u7528\u7a0b\u5e8f\u4ee5\u8fdb\u884c\u67e5\u8be2\u8fd0\u884c\u3002\u5b8c\u6210\u6587\u4ef6\u5ba1\u67e5\u540e\uff0c\u8bf7\u4f7f\u7528kubectl\u521b\u5efa\u5f15\u7528\u547d\u540d\u7a7a\u95f4\u548c\u90e8\u7f72\u3002<\/p>\n<pre class=\"post-pre\"><code>$ kubectl create ns hpa-external-load\r\n$ kubectl apply -f Kubernetes-Starter-Kit-Developers\/09-scaling-application-workloads\/assets\/manifests\/hpa\/metrics-server\/quote_deployment.yaml -n hpa-external-load<\/code><\/pre>\n<p>\u786e\u8ba4\u62a5\u4ef7\u5e94\u7528\u7a0b\u5e8f\u7684\u90e8\u7f72\u548c\u670d\u52a1\u662f\u5426\u6b63\u5e38\u8fd0\u884c\u3002<\/p>\n<pre class=\"post-pre\"><code>$ kubectl get all -n hpa-external-load<\/code><\/pre>\n<div class=\"secondary-code-label\" title=\"\u8f93\u51fa\">\u8f93\u51fa<\/div>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p><code>NAME READY STATUS RESTARTS AGE pod\/quote-dffd65947-s56c9 1\/1 Running 0 3m5s NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE service\/quote ClusterIP 10.245.170.194 &lt;none&gt; 80\/TCP 3m5s NAME READY UP-TO-DATE AVAILABLE AGE deployment.apps\/quote 1\/1 1 1 3m5s NAME DESIRED CURRENT READY AGE replicaset.apps\/quote-6c8f564ff 1 1 1 3m5s<\/code><\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u63a5\u4e0b\u6765\uff0c\u60a8\u5c06\u4e3a\u62a5\u4ef7\u90e8\u7f72\u521b\u5efaHPA\uff08\u6c34\u5e73Pod\u81ea\u52a8\u7f29\u653e\u5668\uff09\u3002\u8fd9\u5c06\u5728quote-deployment-hpa-test.yaml\u6587\u4ef6\u4e2d\u8fdb\u884c\u914d\u7f6e\u3002\u8bf7\u4f7f\u7528Nano\u6216\u60a8\u559c\u6b22\u7684\u6587\u672c\u7f16\u8f91\u5668\u67e5\u770b\u8be5\u6587\u4ef6\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\"><span class=\"token function\">nano<\/span> Kubernetes-Starter-Kit-Developers\/09-scaling-application-workloads\/assets\/manifests\/hpa\/metrics-server\/quote-deployment-hpa-test.yaml<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>&nbsp;<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<div>\n<p>\u4ee5\u4e0b\u662fquote-deployment-hpa-test.yaml\u6587\u4ef6\u7684\u5185\u5bb9\uff1a<\/p>\n<pre class=\"post-pre\"><code>apiVersion: autoscaling\/v2beta2\r\nkind: HorizontalPodAutoscaler\r\nmetadata:\r\n  name: external-load-test\r\nspec:\r\n  scaleTargetRef:\r\n    apiVersion: apps\/v1\r\n    kind: Deployment\r\n    name: quote\r\n  behavior:\r\n    scaleDown:\r\n      <mark>stabilizationWindowSeconds: 60<\/mark>\r\n  minReplicas: 1\r\n  maxReplicas: 3\r\n  metrics:\r\n    - type: Resource\r\n      resource:\r\n        name: cpu\r\n        target:\r\n          type: Utilization\r\n          <mark>averageUtilization: 20<\/mark>\r\n<\/code><\/pre>\n<p>\u8bf7\u6ce8\u610f\uff0c\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0cCPU\u5229\u7528\u7387\u8d44\u6e90\u6307\u6807\u7684\u9608\u503c\u503c\uff0820%\uff09\u8bbe\u7f6e\u4e0d\u540c\u3002\u8fd8\u6709\u4e00\u79cd\u4e0d\u540c\u7684\u7f29\u653e\u884c\u4e3a\u3002\u6b64\u914d\u7f6e\u6539\u53d8\u4e86scaleDown.stabilizationWindowSeconds\u7684\u884c\u4e3a\uff0c\u5e76\u5c06\u5176\u8bbe\u7f6e\u4e3a\u8f83\u4f4e\u768460\u79d2\u3002\u8fd9\u5e76\u4e0d\u603b\u662f\u5728\u5b9e\u8df5\u4e2d\u9700\u8981\uff0c\u4f46\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u60a8\u53ef\u80fd\u5e0c\u671b\u52a0\u5feb\u901f\u5ea6\uff0c\u4ee5\u4fbf\u66f4\u5feb\u5730\u67e5\u770b\u81ea\u52a8\u7f29\u653e\u5668\u6267\u884c\u7f29\u653e\u64cd\u4f5c\u7684\u60c5\u51b5\u3002\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u6c34\u5e73Pod\u81ea\u52a8\u7f29\u653e\u5668\u5177\u67095\u5206\u949f\u7684\u51b7\u5374\u671f\u3002\u5728\u5927\u591a\u6570\u60c5\u51b5\u4e0b\uff0c\u8fd9\u5df2\u7ecf\u8db3\u591f\uff0c\u5e76\u4e14\u5e94\u8be5\u907f\u514d\u526f\u672c\u8fdb\u884c\u7f29\u653e\u65f6\u7684\u6ce2\u52a8\u3002<\/p>\n<p>\u5f53\u60a8\u51c6\u5907\u597d\u65f6\uff0c\u8bf7\u4f7f\u7528kubectl\u90e8\u7f72\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\">kubectl apply <span class=\"token parameter variable\">-f<\/span> Kubernetes-Starter-Kit-Developers\/09-scaling-application-workloads\/assets\/manifests\/hpa\/metrics-server\/quote-deployment-hpa-test.yaml <span class=\"token parameter variable\">-n<\/span> hpa-external-load<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>&nbsp;<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u73b0\u5728\uff0c\u68c0\u67e5HPA\u8d44\u6e90\u662f\u5426\u5df2\u7ecf\u90e8\u7f72\u5e76\u4e14\u6b63\u5e38\u8fd0\u884c\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\">kubectl get hpa external-load-test <span class=\"token parameter variable\">-n<\/span> hpa-external-load<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>&nbsp;<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<div class=\"secondary-code-label\" title=\"\u8f93\u51fa\">\u8f93\u51fa<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p><code>NAME REFERENCE TARGETS MINPODS MAXPODS REPLICAS AGE external-load-test Deployment\/quote 1%\/20% 1 3 1 108s<\/code><\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u6700\u540e\uff0c\u60a8\u5c06\u4f7f\u7528shell\u811a\u672cquote_service_load_test.sh\u6765\u8fd0\u884c\u5b9e\u9645\u7684HTTP\u67e5\u8be2\u3002\u4e4b\u524d\u6ca1\u6709\u5c06\u8fd9\u4e2ashell\u811a\u672c\u5d4c\u5165\u5230\u6e05\u5355\u4e2d\u7684\u539f\u56e0\u662f\u4e3a\u4e86\u80fd\u591f\u5728\u96c6\u7fa4\u4e2d\u89c2\u5bdf\u5176\u8fd0\u884c\uff0c\u5e76\u76f4\u63a5\u8bb0\u5f55\u5230\u60a8\u7684\u7ec8\u7aef\u4e2d\u3002\u4f7f\u7528nano\u6216\u60a8\u559c\u6b22\u7684\u6587\u672c\u7f16\u8f91\u5668\u67e5\u770b\u8be5\u811a\u672c\u7684\u5185\u5bb9\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\"><span class=\"token function\">nano<\/span> Kubernetes-Starter-Kit-Developers\/09-scaling-application-workloads\/assets\/scripts\/quote_service_load_test.sh<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>&nbsp;<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<div>\u4ee5\u4e0b\u662f\u5f15\u7528\u670d\u52a1\u8d1f\u8f7d\u6d4b\u8bd5\u811a\u672c\u7684\u5185\u5bb9\uff1a<\/p>\n<pre class=\"post-pre\"><code>#!\/usr\/bin\/env sh\r\n\r\necho\r\necho \"[INFO] Starting load testing in 10s...\"\r\nsleep 10\r\necho \"[INFO] Working (press Ctrl+C to stop)...\"\r\nkubectl run -i --tty load-generator \\\r\n    --rm \\\r\n    --image=busybox \\\r\n    --restart=Never \\\r\n    -n hpa-external-load \\\r\n    -- \/bin\/sh -c \"while sleep 0.001; do wget -q -O- http:\/\/quote; done\" > \/dev\/null 2>&1\r\necho \"[INFO] Load testing finished.\"\r\n<\/code><\/pre>\n<p>\u4e3a\u4e86\u8fdb\u884c\u8fd9\u4e2a\u6f14\u793a\uff0c\u8bf7\u5728\u4e24\u4e2a\u72ec\u7acb\u7684\u7ec8\u7aef\u7a97\u53e3\u4e2d\u6253\u5f00\u3002\u5728\u7b2c\u4e00\u4e2a\u7ec8\u7aef\u4e2d\u8fd0\u884cquote_service_load_test.sh\u7684shell\u811a\u672c\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\">Kubernetes-Starter-Kit-Developers\/09-scaling-application-workloads\/assets\/scripts\/quote_service_load_test.sh<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>&nbsp;<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u63a5\u4e0b\u6765\uff0c\u5728\u7b2c\u4e8c\u4e2a\u7a97\u53e3\u4e2d\uff0c\u4f7f\u7528 -w \u6807\u5fd7\u5728 HPA \u8d44\u6e90\u4e0a\u8fd0\u884c\u4e00\u4e2a kubectl watch \u547d\u4ee4\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\">kubectl get hpa <span class=\"token parameter variable\">-n<\/span> hpa-external-load <span class=\"token parameter variable\">-w<\/span><\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>&nbsp;<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u60a8\u5e94\u8be5\u770b\u5230\u8d1f\u8f7d\u6307\u6570\u9010\u6e10\u4e0a\u5347\uff0c\u5e76\u4e14\u81ea\u52a8\u6309\u6bd4\u4f8b\u7f29\u653e\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<div class=\"secondary-code-label\" title=\"\u8f93\u51fa\">\u8f93\u51fa<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p><code>NAME REFERENCE TARGETS MINPODS MAXPODS REPLICAS AGE external-load-test Deployment\/quote 1%\/20% 1 3 1 2m49s external-load-test Deployment\/quote 29%\/20% 1 3 1 3m1s external-load-test Deployment\/quote 67%\/20% 1 3 2 3m16s<\/code><\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u5f53\u8d1f\u8f7d\u589e\u52a0\u65f6\uff0c\u60a8\u53ef\u4ee5\u89c2\u5bdf\u5230\u81ea\u52a8\u7f29\u653e\u5668\u7684\u542f\u52a8\uff0c\u5b83\u4f1a\u5c06\u62a5\u4ef7\u670d\u52a1\u5668\u7684\u90e8\u7f72\u526f\u672c\u96c6\u589e\u52a0\u5230\u66f4\u9ad8\u7684\u503c\u3002\u4e00\u65e6\u8d1f\u8f7d\u751f\u6210\u811a\u672c\u505c\u6b62\uff0c\u4f1a\u6709\u4e00\u4e2a\u51b7\u5374\u671f\uff0c\u5927\u7ea61\u5206\u949f\u540e\uff0c\u526f\u672c\u96c6\u4f1a\u964d\u4f4e\u5230\u521d\u59cb\u503c1\u3002\u5728\u8fd4\u56de\u5230\u7b2c\u4e00\u4e2a\u7ec8\u7aef\u7a97\u53e3\u540e\uff0c\u60a8\u53ef\u4ee5\u6309Ctrl+C\u7ec8\u6b62\u8fd0\u884c\u7684\u811a\u672c\u3002<\/p>\n<h2>\u7ed3\u8bba\uff1a<\/h2>\n<\/div>\n<\/div>\n<\/div>\n<h2>\u603b\u7ed3\u4e0e\u8fdb\u9636<\/h2>\n<p>\u5728\u672c\u6559\u7a0b\u4e2d\uff0c\u60a8\u90e8\u7f72\u5e76\u89c2\u5bdf\u4e86\u4f7f\u7528Kubernetes Metrics Server\u7684\u6c34\u5e73Pod\u81ea\u52a8\u6269\u5c55\uff08HPA\uff09\u5728\u51e0\u79cd\u4e0d\u540c\u60c5\u666f\u4e0b\u7684\u884c\u4e3a\u3002HPA\u662fKubernetes\u7684\u4e00\u4e2a\u91cd\u8981\u7ec4\u4ef6\uff0c\u53ef\u4ee5\u5728\u9700\u8981\u65f6\u5e2e\u52a9\u60a8\u7684\u57fa\u7840\u67b6\u6784\u5904\u7406\u66f4\u591a\u7684\u6d41\u91cf\u3002<\/p>\n<p>\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0cMetrics Server\u7684\u4e00\u4e2a\u91cd\u8981\u9650\u5236\u662f\u5b83\u53ea\u80fd\u63d0\u4f9bCPU\u6216\u5185\u5b58\u4f7f\u7528\u6307\u6807\uff0c\u65e0\u6cd5\u63d0\u4f9b\u5176\u4ed6\u7c7b\u578b\u7684\u6307\u6807\u3002\u60a8\u53ef\u4ee5\u8fdb\u4e00\u6b65\u9605\u8bfbMetrics Server\u7684\u5b98\u65b9\u6587\u6863\uff0c\u4e86\u89e3\u66f4\u591a\u5173\u4e8e\u5176\u4f7f\u7528\u573a\u666f\u548c\u64cd\u4f5c\u65b9\u6cd5\u3002\u5982\u679c\u60a8\u9700\u8981\u4f7f\u7528\u5176\u4ed6\u6307\u6807\uff08\u4f8b\u5982\u78c1\u76d8\u4f7f\u7528\u6216\u7f51\u7edc\u8d1f\u8f7d\uff09\u8fdb\u884c\u6269\u5c55\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u4e00\u4e2a\u540d\u4e3aprometheus-adapter\u7684\u7279\u6b8a\u9002\u914d\u5668\u6765\u96c6\u6210Prometheus\u76d1\u63a7\u7cfb\u7edf\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5f15\u8a00 Kubernetes\u65e8\u5728\u63d0\u4f9b\u53ef\u9760\u6027\u548c\u53ef\u4f38\u7f29\u6027\u3002\u5b83\u901a\u8fc7\u90e8\u7f72\u5177\u6709\u4e0d\u540c\u8d44\u6e90\u5206\u914d\u7684\u591a\u4e2aPod\u6765\u4e3a\u60a8\u7684\u5e94\u7528\u7a0b\u5e8f\u63d0\u4f9b 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