{"id":43347,"date":"2023-09-07T06:06:07","date_gmt":"2023-01-22T18:58:12","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8prometheus-adapter%e8%87%aa%e5%8a%a8%e6%89%a9%e5%b1%95pod%e3%80%82\/"},"modified":"2024-04-30T21:50:02","modified_gmt":"2024-04-30T13:50:02","slug":"%e4%bd%bf%e7%94%a8prometheus-adapter%e8%87%aa%e5%8a%a8%e6%89%a9%e5%b1%95pod%e3%80%82","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8prometheus-adapter%e8%87%aa%e5%8a%a8%e6%89%a9%e5%b1%95pod%e3%80%82\/","title":{"rendered":"\u4f7f\u7528Prometheus Adapter\u81ea\u52a8\u6269\u5c55Pod"},"content":{"rendered":"<h2>\u9996\u5148<\/h2>\n<p>\u901a\u8fc7\u81ea\u5b9a\u4e49\u6307\u6807\u8fdb\u884cPod\u7684\u6c34\u5e73\u6269\u5c55\uff0c\u4ecb\u7ecd\u4e86\u81ea\u5b9a\u4e49\u6307\u6807\u7684\u79cd\u7c7b\u3001\u8bbe\u7f6e\u65b9\u6cd5\u4ee5\u53ca\u7528\u4e8e\u63d0\u4f9b\u81ea\u5b9a\u4e49\u6307\u6807\u7684API\u670d\u52a1\u5668\u3002\u672c\u6b21\u5c06\u4ecb\u7ecd\u5176\u4e2d\u4e4b\u4e00\u2014\u2014Prometheus\u9002\u914d\u5668\u7684\u6982\u8ff0\u4ee5\u53ca\u4f7f\u7528\u5b83\u8fdb\u884cPod\u7684\u81ea\u52a8\u4f38\u7f29\u3002<\/p>\n<h2>Prometheus\u9002\u914d\u5668\u662f\u4ec0\u4e48\uff1f<\/h2>\n<p>Prometheus\u9002\u914d\u56681\u662f\u7528\u4e8e\u5c06Prometheus\u7684\u4efb\u4f55\u6307\u6807\u7528\u4f5c\u81ea\u5b9a\u4e49\u5916\u90e8\u6307\u6807\u7684API\u670d\u52a1\u5668\u3002\u76ee\u524d\u5b83\u7531DirectXMan\u7ef4\u62a4\u7684\u4e2a\u4eba\u5b58\u50a8\u5e93\u5f00\u53d1\uff0c\u4f46\u6b63\u5728\u8f6c\u79fb\u81f3kubernetes-sigs\uff0c\u5c06\u6210\u4e3aKubernetes\u5b98\u65b9\u5b58\u50a8\u5e93\u4e4b\u4e00\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d518237434c4406cca269\/4-0.png\" alt=\"image.png\" \/><\/div>\n<p>\u4e0a\u9762\u7684\u56fe\u8868\u662fPrometheus Adapter\u7684\u57fa\u672c\u7ed3\u6784\u3002Prometheus Adapter\u4f5c\u4e3a\u8fde\u63a5Kubernetes\u548cPrometheus\u4e4b\u95f4\u7684\u9002\u914d\u5668\uff0c\u8d77\u5230\u4e86\u91cd\u8981\u4f5c\u7528\u3002\u5b83\u6839\u636e\u5728ConfigMap\u4e2d\u8bbe\u7f6e\u7684\u81ea\u5b9a\u4e49\u6307\u6807\u89c4\u5219\uff0c\u4ecePrometheus\u83b7\u53d6\u5b9e\u9645\u6307\u6807\uff0c\u5e76\u5c06\u5176\u683c\u5f0f\u5316\u548c\u516c\u5f00\uff0c\u4ee5\u7b26\u5408\u6307\u6807API\u7684\u683c\u5f0f\u8981\u6c42\u3002<\/p>\n<h3>\u5b89\u88c5\u65b9\u6cd5<\/h3>\n<p>Prometheus Adapter\u63d0\u4f9b\u4e86\u7528\u4e8e\u5b89\u88c5\u7684Helm Chart\u3002\u60a8\u53ef\u4ee5\u901a\u8fc7Helm\u7684Values\u6587\u4ef6\u6765\u4fee\u6539Prometheus\u670d\u52a1\u5668\u7684\u5730\u5740\u4ee5\u53ca\u63a5\u4e0b\u6765\u8981\u4ecb\u7ecd\u7684\u5ea6\u91cf\u89c4\u5219\u7b49\u5404\u79cd\u914d\u7f6e\u3002\u8bf7\u6839\u636e\u5404\u4e2a\u73af\u5883\u8fdb\u884c\u4fee\u6539\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nv\">$ <\/span>helm repo add prometheus-community https:\/\/prometheus-community.github.io\/helm-charts\r\n<span class=\"nv\">$ <\/span>helm repo update\r\n<span class=\"nv\">$ <\/span>helm <span class=\"nb\">install<\/span> <span class=\"nt\">--name<\/span> my-release prometheus-community\/prometheus-adapter\r\n<\/code><\/pre>\n<p>\u5982\u679c\u6b63\u5e38\u542f\u52a8\uff0cCustom Metrics API \u7684\u54cd\u5e94\u5c06\u5982\u4e0b\u8fd4\u56de\u3002(\u6839\u636e\u5ea6\u91cf\u89c4\u5219\u8bbe\u7f6e\uff0cresources \u6570\u7ec4\u7684\u5185\u5bb9\u53ef\u80fd\u4f1a\u6709\u6240\u4e0d\u540c\u3002)<\/p>\n<pre class=\"post-pre\"><code><span class=\"nv\">$ <\/span>kubectl get <span class=\"nt\">--raw<\/span> \/apis\/custom.metrics.k8s.io\/v1beta1\r\n<span class=\"o\">{<\/span><span class=\"s2\">\"kind\"<\/span>:<span class=\"s2\">\"APIResourceList\"<\/span>,<span class=\"s2\">\"apiVersion\"<\/span>:<span class=\"s2\">\"v1\"<\/span>,<span class=\"s2\">\"groupVersion\"<\/span>:<span class=\"s2\">\"custom.metrics.k8s.io\/v1beta1\"<\/span>,<span class=\"s2\">\"resources\"<\/span>:[]<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<h2>\u81ea\u5b9a\u4e49\u6307\u6807\u89c4\u5219\u8bbe\u5b9a<\/h2>\n<p>\u4ee5\u4e0b\u662f\u6709\u5173Prometheus\u9002\u914d\u5668\u5904\u7406\u5185\u5bb9\u548c\u987a\u5e8f\u7684\u6392\u5e8f\u5217\u8868\u3002\u9996\u5148\uff0c\u786e\u8ba4Prometheus\u662f\u5426\u5b58\u5728\u76f8\u5173\u6307\u6807\uff0c\u5982\u679c\u5b58\u5728\uff0c\u5219\u5c06\u5176\u4e0e\u5b9e\u9645\u7684Kubernetes\u8d44\u6e90\u5173\u8054\u8d77\u6765\u3002\u7136\u540e\uff0c\u5c06\u5176\u4f5c\u4e3a\u6307\u6807API\u8fdb\u884c\u516c\u5f00\u3002<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u53d1\u73b0\uff1a\u786e\u8ba4\u6709\u6548\u6307\u6807<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u5173\u8054\uff1a\u6307\u6807\u4e0eKubernetes\u8d44\u6e90\u7684\u5173\u8054<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u547d\u540d\uff1a\u7528\u4e8e\u516c\u5f00\u81ea\u5b9a\u4e49\u6307\u6807API\u7684\u547d\u540d<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\u67e5\u8be2\uff1a\u6267\u884cPrometheus\u67e5\u8be2\u4ee5\u83b7\u53d6\u6307\u6807<\/ol>\n<p>\u5c06\u81ea\u5b9a\u4e49\u6307\u6807\u7684\u8bbe\u7f6e\u4fdd\u5b58\u5728ConfigMap\u4e2d\uff0c\u4fdd\u5b58\u4e3aconfig.yaml\u6587\u4ef6\u3002config.yaml\u6587\u4ef6\u7684\u683c\u5f0f\u6839\u636e\u524d\u9762\u4ecb\u7ecd\u7684Prometheus Adapter\u7684\u5de5\u4f5c\u65b9\u5f0f\uff0c\u5927\u81f4\u5206\u4e3a\u56db\u4e2a\u90e8\u5206\u3002\u6b64\u5916\uff0c\u53ef\u4ee5\u8bbe\u7f6e\u591a\u4e2a\u89c4\u5219\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"na\">rules<\/span><span class=\"pi\">:<\/span>\r\n  <span class=\"c1\"># Discovery: Discovery\u5bfe\u8c61\u306eSeries\u3092\u6307\u5b9a\u3059\u308b (\u95a2\u6570\u306f\u4f7f\u3048\u306a\u3044)<\/span>\r\n<span class=\"pi\">-<\/span> <span class=\"na\">seriesQuery<\/span><span class=\"pi\">:<\/span> <span class=\"s1\">'<\/span><span class=\"s\">http_request_duration_seconds_bucket{deploy_namespace!=\"\",deploy_name!=\"\"}'<\/span>\r\n  <span class=\"c1\"># Association: \u30e1\u30c8\u30ea\u30af\u30b9\u3092\u30de\u30c3\u30d4\u30f3\u30b0\u3059\u308b\u30ea\u30bd\u30fc\u30b9\u8a2d\u5b9a\u3001API\u306e\u30d1\u30b9\u306b\u306a\u308b<\/span>\r\n  <span class=\"na\">resources<\/span><span class=\"pi\">:<\/span>\r\n    <span class=\"na\">overrides<\/span><span class=\"pi\">:<\/span>\r\n      <span class=\"na\">deploy_name<\/span><span class=\"pi\">:<\/span> <span class=\"pi\">{<\/span><span class=\"nv\">resource<\/span><span class=\"pi\">:<\/span> <span class=\"s2\">\"<\/span><span class=\"s\">deployment\"<\/span><span class=\"pi\">,<\/span> <span class=\"nv\">group<\/span><span class=\"pi\">:<\/span> <span class=\"s2\">\"<\/span><span class=\"s\">apps\"<\/span><span class=\"pi\">}<\/span>\r\n      <span class=\"na\">deploy_namespace<\/span><span class=\"pi\">:<\/span> <span class=\"pi\">{<\/span><span class=\"nv\">resource<\/span><span class=\"pi\">:<\/span> <span class=\"s2\">\"<\/span><span class=\"s\">namespace\"<\/span><span class=\"pi\">}<\/span>\r\n  <span class=\"c1\"># Naming: \u30e1\u30c8\u30ea\u30af\u30b9\u540d\u3068\u3057\u3066\u516c\u958b\u3059\u308b\u540d\u524d<\/span>\r\n  <span class=\"na\">name<\/span><span class=\"pi\">:<\/span>\r\n    <span class=\"na\">as<\/span><span class=\"pi\">:<\/span> <span class=\"s1\">'<\/span><span class=\"s\">http_request_per_seconds'<\/span>\r\n  <span class=\"c1\"># Quering: \u516c\u958b\u3059\u308b\u30e1\u30c8\u30ea\u30af\u30b9\u3092Prometheus\u304b\u3089\u53d6\u5f97\u3059\u308b\u305f\u3081\u306e\u30af\u30a8\u30ea<\/span>\r\n  <span class=\"na\">metricsQuery<\/span><span class=\"pi\">:<\/span> <span class=\"s1\">'<\/span><span class=\"s\">sum(rate(&lt;&lt;.Series&gt;&gt;{&lt;&lt;.LabelMatchers&gt;&gt;}[2m]))<\/span> <span class=\"s\">by<\/span> <span class=\"s\">(&lt;&lt;.GroupBy&gt;&gt;)'<\/span>\r\n<\/code><\/pre>\n<h3>\u7ed9\u4e88\u8bfb\u53d6\u6743\u9650<\/h3>\n<p>\u7531\u4e8ePrometheus Adapter\u6ca1\u6709\u88ab\u6388\u4e88\u9664Pod\u4ee5\u5916\u7684\u8d44\u6e90\u7684\u8bbf\u95ee\u6743\u9650\uff0c\u5982\u679c\u8981\u8bbe\u7f6e\u5176\u4ed6\u8d44\u6e90\u7684\u81ea\u5b9a\u4e49\u6307\u6807\uff0c\u5219\u9700\u8981\u8fdb\u884c\u6743\u9650\u6388\u4e88\u3002\u8bfb\u53d6\u8d44\u6e90\u7684\u6743\u9650\u662f\u7531\u540d\u4e3aprometheus-adapter-resource-reader\u7684ClusterRole\u5b9a\u4e49\u7684\uff0c\u56e0\u6b64\u8bf7\u5728\u6b64\u5904\u6dfb\u52a0\u6240\u9700\u7684\u8bbe\u7f6e\u3002\u4f8b\u5982\uff0c\u5982\u679c\u60f3\u8981\u6dfb\u52a0Deployment\u7684\u8bbf\u95ee\u6743\u9650\uff0c\u53ef\u4ee5\u6309\u7167\u4ee5\u4e0b\u65b9\u5f0f\u8fdb\u884c\u8bbe\u7f6e\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"pi\">-<\/span> <span class=\"na\">apiGroups<\/span><span class=\"pi\">:<\/span>\r\n  <span class=\"pi\">-<\/span> <span class=\"s2\">\"<\/span><span class=\"s\">apps\"<\/span>\r\n  <span class=\"na\">resources<\/span><span class=\"pi\">:<\/span>\r\n  <span class=\"pi\">-<\/span> <span class=\"s\">deployments<\/span>\r\n  <span class=\"na\">verbs<\/span><span class=\"pi\">:<\/span>\r\n  <span class=\"pi\">-<\/span> <span class=\"s\">get<\/span>\r\n  <span class=\"pi\">-<\/span> <span class=\"s\">list<\/span>\r\n  <span class=\"pi\">-<\/span> <span class=\"s\">watch<\/span>\r\n<\/code><\/pre>\n<h3>\u7d27\u6025\u60c5\u51b5\u4e0b<\/h3>\n<p>\u5982\u679c\u914d\u7f6e\u9519\u8bef\uff0cMetrics API \u5c06\u8fd4\u56de\u4e00\u4e2a\u7a7a\u7684\u8d44\u6e90\u6570\u7ec4\u3002Prometheus Adapter \u4ed3\u5e93\u4e2d\u4e5f\u6709\u4e00\u4e2a\u95ee\u9898\uff0c\u5373\u8d44\u6e90\u7ecf\u5e38\u53d8\u4e3a\u7a7a\uff0c\u4f46\u5927\u591a\u6570\u60c5\u51b5\u4e0b\u662f\u7528\u6237\u914d\u7f6e\u9519\u8bef\u3002\u8bf7\u6ce8\u610f\u4ee5\u4e0b\u51e0\u70b9\uff0c\u91cd\u65b0\u68c0\u67e5\u914d\u7f6e\u3002<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u8bf7\u786e\u8ba4 Prometheus Adapter \u7684 Pod \u662f\u5426\u6b63\u5e38\u542f\u52a8\u4e14\u6ca1\u6709\u8f93\u51fa\u9519\u8bef\u65e5\u5fd7<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u8bf7\u786e\u8ba4 SeriesQuery \u662f\u5426\u6ca1\u6709\u4f7f\u7528\u51fd\u6570<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u8bf7\u786e\u8ba4\u5728 Naming \u4e2d\u4f7f\u7528\u7684\u6807\u7b7e\u662f\u5426\u5305\u542b\u5728\u6307\u6807\u4e2d<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u8bf7\u786e\u8ba4 Prometheus \u662f\u5426\u80fd\u591f\u6b63\u5e38\u8fd4\u56de\u76f8\u5e94\u7684\u67e5\u8be2\u7ed3\u679c<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\u8bf7\u786e\u8ba4\u6709\u5173\u8d44\u6e90\u7684\u6743\u9650\u662f\u5426\u5df2\u5728 RBAC \u4e2d\u6388\u4e88<\/ol>\n<h2>\u786e\u8ba4\u5df2\u8bbe\u7f6e\u7684\u81ea\u5b9a\u4e49\u6307\u6807\u3002<\/h2>\n<p>\u5982\u679c\u6240\u6709\u8bbe\u7f6e\u90fd\u6210\u529f\u5b8c\u6210\uff0c\u60a8\u5c31\u53ef\u4ee5\u8c03\u7528\u8bbe\u7f6e\u7684\u81ea\u5b9a\u4e49\u5ea6\u91cfAPI\u3002\u4f7f\u7528kubectl get\u547d\u4ee4\u8c03\u7528API\u7684\u6839\u8def\u5f84\u65f6\uff0c\u4f1a\u663e\u793a\u5df2\u6ce8\u518c\u7684\u81ea\u5b9a\u4e49\u5ea6\u91cf\u5217\u8868\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nv\">$ <\/span>kubectl get <span class=\"nt\">--raw<\/span> \/apis\/custom.metrics.k8s.io\/v1beta1 | jq\r\n<span class=\"o\">{<\/span>\r\n  <span class=\"s2\">\"kind\"<\/span>: <span class=\"s2\">\"APIResourceList\"<\/span>,\r\n  <span class=\"s2\">\"apiVersion\"<\/span>: <span class=\"s2\">\"v1\"<\/span>,\r\n  <span class=\"s2\">\"groupVersion\"<\/span>: <span class=\"s2\">\"custom.metrics.k8s.io\/v1beta1\"<\/span>,\r\n  <span class=\"s2\">\"resources\"<\/span>: <span class=\"o\">[<\/span>\r\n    <span class=\"o\">{<\/span>\r\n      <span class=\"s2\">\"name\"<\/span>: <span class=\"s2\">\"namespaces\/http_request_per_seconds\"<\/span>,\r\n      <span class=\"s2\">\"singularName\"<\/span>: <span class=\"s2\">\"\"<\/span>,\r\n      <span class=\"s2\">\"namespaced\"<\/span>: <span class=\"nb\">false<\/span>,\r\n      <span class=\"s2\">\"kind\"<\/span>: <span class=\"s2\">\"MetricValueList\"<\/span>,\r\n      <span class=\"s2\">\"verbs\"<\/span>: <span class=\"o\">[<\/span>\r\n        <span class=\"s2\">\"get\"<\/span>\r\n      <span class=\"o\">]<\/span>\r\n    <span class=\"o\">}<\/span>,\r\n    <span class=\"o\">{<\/span>\r\n      <span class=\"s2\">\"name\"<\/span>: <span class=\"s2\">\"service\/http_request_per_seconds\"<\/span>,\r\n      <span class=\"s2\">\"singularName\"<\/span>: <span class=\"s2\">\"\"<\/span>,\r\n      <span class=\"s2\">\"namespaced\"<\/span>: <span class=\"nb\">true<\/span>,\r\n      <span class=\"s2\">\"kind\"<\/span>: <span class=\"s2\">\"MetricValueList\"<\/span>,\r\n      <span class=\"s2\">\"verbs\"<\/span>: <span class=\"o\">[<\/span>\r\n        <span class=\"s2\">\"get\"<\/span>\r\n      <span class=\"o\">]<\/span>\r\n    <span class=\"o\">}<\/span>\r\n  <span class=\"o\">]<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<p>\u5728namespace\u4e2d\u65e0\u6cd5\u4f7f\u7528\u901a\u914d\u7b26(*)\uff0c\u4f46\u5728name\u4e2d\u53ef\u4ee5\u4f7f\u7528\u901a\u914d\u7b26\u6765\u8fdb\u884c\u5339\u914d\u3002value\u7684\u54cd\u5e94\u662f\u6307\u6b64\u65f6\u7684\u5ea6\u91cf\u503c\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nv\">$ <\/span>kubectl get <span class=\"nt\">--raw<\/span> <span class=\"s1\">'\/apis\/custom.metrics.k8s.io\/v1beta1\/namespaces\/test_namespace\/deployments.apps\/*\/http_request\r\n_per_seconds'<\/span>|jq\r\n<span class=\"o\">{<\/span>\r\n  <span class=\"s2\">\"kind\"<\/span>: <span class=\"s2\">\"MetricValueList\"<\/span>,\r\n  <span class=\"s2\">\"apiVersion\"<\/span>: <span class=\"s2\">\"custom.metrics.k8s.io\/v1beta1\"<\/span>,\r\n  <span class=\"s2\">\"metadata\"<\/span>: <span class=\"o\">{<\/span>\r\n    <span class=\"s2\">\"selfLink\"<\/span>: <span class=\"s2\">\"\/apis\/custom.metrics.k8s.io\/v1beta1\/namespaces\/test_namespace\/deployments.apps\/%2A\/http_request_per_seconds\"<\/span>\r\n  <span class=\"o\">}<\/span>,\r\n  <span class=\"s2\">\"items\"<\/span>: <span class=\"o\">[<\/span>\r\n    <span class=\"o\">{<\/span>\r\n      <span class=\"s2\">\"describedObject\"<\/span>: <span class=\"o\">{<\/span>\r\n        <span class=\"s2\">\"kind\"<\/span>: <span class=\"s2\">\"Deployment\"<\/span>,\r\n        <span class=\"s2\">\"namespace\"<\/span>: <span class=\"s2\">\"test_namespace\"<\/span>,\r\n        <span class=\"s2\">\"name\"<\/span>: <span class=\"s2\">\"testapp\"<\/span>,\r\n        <span class=\"s2\">\"apiVersion\"<\/span>: <span class=\"s2\">\"apps\/v1\"<\/span>\r\n      <span class=\"o\">}<\/span>,\r\n      <span class=\"s2\">\"metricName\"<\/span>: <span class=\"s2\">\"http_request_per_seconds\"<\/span>,\r\n      <span class=\"s2\">\"timestamp\"<\/span>: <span class=\"s2\">\"2020-11-22T08:40:47Z\"<\/span>,\r\n      <span class=\"s2\">\"value\"<\/span>: <span class=\"s2\">\"68\"<\/span>,\r\n      <span class=\"s2\">\"selector\"<\/span>: null\r\n    <span class=\"o\">}<\/span>\r\n  <span class=\"o\">]<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<h2>\u4f7f\u7528\u81ea\u5b9a\u4e49\u6307\u6807\u6765\u9a8c\u8bc1HPA\u7684\u64cd\u4f5c<\/h2>\n<p>\u4e00\u65e6\u81ea\u5b9a\u4e49API\u80fd\u591f\u6210\u529f\u8fd4\u56de\u503c\uff0c\u63a5\u4e0b\u6765\u53ea\u9700\u5728HPA\u4e2d\u8bbe\u7f6e\u81ea\u5b9a\u4e49\u6307\u6807\u5373\u53ef\u3002\uff08\u6709\u5173\u8be6\u7ec6\u8bbe\u7f6e\u65b9\u6cd5\uff0c\u8bf7\u53c2\u9605\u4e0a\u4e00\u7bc7\u6587\u7ae0\u3002\uff09\u4e0b\u9762\u7684\u6e05\u5355\u662f\u8bbe\u7f6eHPA\u7684\u793a\u4f8b\uff0c\u5176\u4e2d\u5305\u62ec\u4e86\u540d\u4e3ahttp_request_per_seconds\u7684\u81ea\u5b9a\u4e49\u6307\u6807\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"na\">kind<\/span><span class=\"pi\">:<\/span> <span class=\"s\">HorizontalPodAutoscaler<\/span>\r\n<span class=\"na\">apiVersion<\/span><span class=\"pi\">:<\/span> <span class=\"s\">autoscaling\/v2beta1<\/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\">testapp<\/span>\r\n<span class=\"na\">spec<\/span><span class=\"pi\">:<\/span>\r\n  <span class=\"na\">scaleTargetRef<\/span><span class=\"pi\">:<\/span>\r\n    <span class=\"na\">kind<\/span><span class=\"pi\">:<\/span> <span class=\"s\">Deployment<\/span>\r\n    <span class=\"na\">name<\/span><span class=\"pi\">:<\/span> <span class=\"s\">testapp<\/span>\r\n  <span class=\"na\">metrics<\/span><span class=\"pi\">:<\/span>\r\n  <span class=\"c1\"># Pod\u4ee5\u5916\u306e\u30ab\u30b9\u30bf\u30e0\u30e1\u30c8\u30ea\u30af\u30b9\u306fObject<\/span>\r\n  <span class=\"pi\">-<\/span> <span class=\"na\">type<\/span><span class=\"pi\">:<\/span> <span class=\"s\">Object<\/span>\r\n    <span class=\"na\">object<\/span><span class=\"pi\">:<\/span>\r\n      <span class=\"na\">describedObject<\/span><span class=\"pi\">:<\/span>\r\n        <span class=\"na\">apiVersion<\/span><span class=\"pi\">:<\/span> <span class=\"s\">apps\/v1<\/span>\r\n        <span class=\"na\">kind<\/span><span class=\"pi\">:<\/span> <span class=\"s\">Deployment<\/span>\r\n        <span class=\"na\">name<\/span><span class=\"pi\">:<\/span> <span class=\"s\">testapp<\/span>\r\n      <span class=\"na\">metric<\/span><span class=\"pi\">:<\/span>\r\n        <span class=\"na\">name<\/span><span class=\"pi\">:<\/span> <span class=\"s\">http_request_per_seconds<\/span> <span class=\"c1\"># \u30ab\u30b9\u30bf\u30e0\u30e1\u30c8\u30ea\u30af\u30b9\u540d<\/span>\r\n      <span class=\"na\">target<\/span><span class=\"pi\">:<\/span>\r\n        <span class=\"na\">type<\/span><span class=\"pi\">:<\/span> <span class=\"s\">Value<\/span> <span class=\"c1\"># Value<\/span>\r\n        <span class=\"na\">value<\/span><span class=\"pi\">:<\/span> <span class=\"s2\">\"<\/span><span class=\"s\">100\"<\/span> <span class=\"c1\"># \u3057\u304d\u3044\u5024<\/span>\r\n<\/code><\/pre>\n<p>\u5f53\u83b7\u53d6\u5230\u6240\u521b\u5efa\u7684HPA\u8d44\u6e90\u65f6\uff0c\u53ef\u4ee5\u786e\u8ba4\u901a\u8fc7.status.conditions\u4e0b\u7684ScalingActive\u7c7b\u578b\u6210\u529f\u5730\u8bbe\u7f6e\u4e86\u81ea\u5b9a\u4e49\u6307\u6807\u3002\u53e6\u5916\uff0c\u5728\u4f7f\u7528`hey`\u547d\u4ee4\u65bd\u52a0\u8d1f\u8f7d\u65f6\uff0c\u53ef\u4ee5\u786e\u8ba4\u5728\u8d85\u8fc7\u9608\u503c\u65f6\u8fdb\u884c\u4e86\u6269\u5c55\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"s\">$ kubectl get hpa.v2beta2.autoscaling testapp -n test_namespace -o yaml<\/span>\r\n<span class=\"na\">apiVersion<\/span><span class=\"pi\">:<\/span> <span class=\"s\">autoscaling\/v2beta2<\/span>\r\n<span class=\"na\">kind<\/span><span class=\"pi\">:<\/span> <span class=\"s\">HorizontalPodAutoscaler<\/span>\r\n<span class=\"nn\">...<\/span>\r\n  <span class=\"na\">metrics<\/span><span class=\"pi\">:<\/span>\r\n  <span class=\"pi\">-<\/span> <span class=\"na\">object<\/span><span class=\"pi\">:<\/span>\r\n      <span class=\"na\">describedObject<\/span><span class=\"pi\">:<\/span>\r\n        <span class=\"na\">apiVersion<\/span><span class=\"pi\">:<\/span> <span class=\"s\">apps\/v1<\/span>\r\n        <span class=\"na\">kind<\/span><span class=\"pi\">:<\/span> <span class=\"s\">Deployment<\/span>\r\n        <span class=\"na\">name<\/span><span class=\"pi\">:<\/span> <span class=\"s\">testapp<\/span>\r\n      <span class=\"na\">metric<\/span><span class=\"pi\">:<\/span>\r\n        <span class=\"na\">name<\/span><span class=\"pi\">:<\/span> <span class=\"s\">http_request_per_seconds<\/span>\r\n      <span class=\"na\">target<\/span><span class=\"pi\">:<\/span>\r\n        <span class=\"na\">type<\/span><span class=\"pi\">:<\/span> <span class=\"s\">Value<\/span>\r\n        <span class=\"na\">value<\/span><span class=\"pi\">:<\/span> <span class=\"s2\">\"<\/span><span class=\"s\">100\"<\/span>\r\n    <span class=\"na\">type<\/span><span class=\"pi\">:<\/span> <span class=\"s\">Object<\/span>\r\n<span class=\"nn\">...<\/span>\r\n<span class=\"na\">status<\/span><span class=\"pi\">:<\/span>\r\n  <span class=\"na\">conditions<\/span><span class=\"pi\">:<\/span>\r\n  <span class=\"pi\">-<\/span> <span class=\"na\">lastTransitionTime<\/span><span class=\"pi\">:<\/span> <span class=\"s2\">\"<\/span><span class=\"s\">2020-11-22T07:42:03Z\"<\/span>\r\n    <span class=\"na\">message<\/span><span class=\"pi\">:<\/span> <span class=\"s\">the HPA was able to successfully calculate a replica count from object<\/span>\r\n      <span class=\"s\">metric http_request_per_seconds<\/span>\r\n    <span class=\"na\">reason<\/span><span class=\"pi\">:<\/span> <span class=\"s\">ValidMetricFound<\/span>\r\n    <span class=\"na\">status<\/span><span class=\"pi\">:<\/span> <span class=\"s2\">\"<\/span><span class=\"s\">True\"<\/span>\r\n    <span class=\"na\">type<\/span><span class=\"pi\">:<\/span> <span class=\"s\">ScalingActive<\/span>\r\n<span class=\"nn\">...<\/span>\r\n<\/code><\/pre>\n<h2>\u6700\u540e<\/h2>\n<p>\u672c\u6b21\u89e3\u8aaa\u4e86\u5373\u5c07\u88ab\u7d0d\u5165kubernetes-sigs\u7684Prometheus Adapter\u3002\u6b64\u5916\uff0c\u7528\u65bc\u5b89\u88dd\u7684Helm Chart\u5df2\u7d93\u79fb\u4ea4\u7d66Prometheus\u793e\u7fa4\uff0c\u8207\u5b98\u65b9\u7684Stable Charts\u5b58\u5132\u5eab\u4e00\u81f4\u3002\u5c0d\u65bc\u4f7f\u7528Prometheus\u9032\u884c\u6307\u6a19\u7ba1\u7406\u7684\u4eba\u4f86\u8aaa\uff0c\u5728\u4f7f\u7528HPA\u81ea\u5b9a\u7fa9\u6307\u6a19\u6642\uff0c\u9019\u5c07\u662f\u4e00\u500b\u4e0d\u932f\u7684\u9078\u64c7\u3002<\/p>\n<div>\n<p>DirectXMan12\/k8s-prometheus-adapter\u662f\u4f7f\u7528Prometheus\u5b9e\u73b0custom.metrics.K8s.io API\u7684\u4e00\u4e2a\u9879\u76ee\u3002<\/p>\n<p>\u5c06DirectXMan12\/k8s-prometheus-adapter\u8fc1\u79fb\u5230kubernetes-sigs\u3002<\/p>\n<p>\u5728prometheus-community\/helm-charts\u7684\u4e3b\u5206\u652f\u4e0b\u7684helm-charts\/charts\/prometheus-adapter\u76ee\u5f55\u3002<\/p>\n<p>\u53c2\u8003\u94fe\u63a5\uff1ahttps:\/\/github.com\/prometheus-community\/helm-charts\/blob\/main\/charts\/prometheus-adapter\/values.yaml\u3002<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u9996\u5148 \u901a\u8fc7\u81ea\u5b9a\u4e49\u6307\u6807\u8fdb\u884cPod\u7684\u6c34\u5e73\u6269\u5c55\uff0c\u4ecb\u7ecd\u4e86\u81ea\u5b9a\u4e49\u6307\u6807\u7684\u79cd\u7c7b\u3001\u8bbe\u7f6e\u65b9\u6cd5\u4ee5\u53ca\u7528\u4e8e\u63d0\u4f9b\u81ea\u5b9a\u4e49\u6307\u6807\u7684API\u670d\u52a1\u5668 [&hellip;]<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-43347","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>\u4f7f\u7528Prometheus Adapter\u81ea\u52a8\u6269\u5c55Pod - 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\/\u4f7f\u7528prometheus-adapter\u81ea\u52a8\u6269\u5c55pod\u3002\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u4f7f\u7528Prometheus Adapter\u81ea\u52a8\u6269\u5c55Pod\" \/>\n<meta property=\"og:description\" content=\"\u9996\u5148 \u901a\u8fc7\u81ea\u5b9a\u4e49\u6307\u6807\u8fdb\u884cPod\u7684\u6c34\u5e73\u6269\u5c55\uff0c\u4ecb\u7ecd\u4e86\u81ea\u5b9a\u4e49\u6307\u6807\u7684\u79cd\u7c7b\u3001\u8bbe\u7f6e\u65b9\u6cd5\u4ee5\u53ca\u7528\u4e8e\u63d0\u4f9b\u81ea\u5b9a\u4e49\u6307\u6807\u7684API\u670d\u52a1\u5668 [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/\u4f7f\u7528prometheus-adapter\u81ea\u52a8\u6269\u5c55pod\u3002\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2023-01-22T18:58:12+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-04-30T13:50:02+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d518237434c4406cca269\/4-0.png\" \/>\n<meta name=\"author\" content=\"\u65b0, \u97f5\" 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