{"id":36172,"date":"2023-11-24T21:36:48","date_gmt":"2023-08-06T13:43:54","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/kubernetes%e4%b8%ad%e7%9a%84label-nodeselector-annotation%e7%9a%84%e4%bd%bf%e7%94%a8%e6%96%b9%e6%b3%95\/"},"modified":"2024-05-04T10:36:51","modified_gmt":"2024-05-04T02:36:51","slug":"kubernetes%e4%b8%ad%e7%9a%84label-nodeselector-annotation%e7%9a%84%e4%bd%bf%e7%94%a8%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/kubernetes%e4%b8%ad%e7%9a%84label-nodeselector-annotation%e7%9a%84%e4%bd%bf%e7%94%a8%e6%96%b9%e6%b3%95\/","title":{"rendered":"Kubernetes\u4e2d\u7684Label \/ NodeSelector \/ Annotation\u7684\u4f7f\u7528\u65b9\u6cd5"},"content":{"rendered":"<h2>\u6458\u8981<\/h2>\n<p>\u5728\u8fd9\u7bc7\u6587\u7ae0\u4e2d\uff0c\u6211\u4eec\u5c06\u89e3\u91ca\u5982\u4f55\u7f16\u5199Kubernetes\u7684\u6e05\u5355\u6587\u4ef6\u3002\u672c\u9875\u9762\u5c06\u5bf9\u4ee5\u4e0b\u4e09\u4e2a\u65b9\u9762\u8fdb\u884c\u8bf4\u660e\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Label\u306e\u4f7f\u3044\u65b9<\/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\">NodeSelector\u306e\u4f7f\u3044\u65b9<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">Annotation\u306e\u4f7f\u3044\u65b9<\/ul>\n<h2>\u76ee\u5f55<\/h2>\n<ul class=\"post-ul\">Kubernetes\u30cf\u30f3\u30ba\u30aa\u30f3\u76ee\u6b21<\/ul>\n<h2>\u5982\u4f55\u4f7f\u7528Label<\/h2>\n<p>\u5728\u5f15\u7528\u5176\u4ed6\u8d44\u6e90\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528Label\u3002<br \/>\n\u4ee5\u4e0b\u793a\u4f8b\u4e2d\uff0c\u4e3a\u4e86\u5c06\u8bf7\u6c42\u4eceService\u53d1\u9001\u5230Deployment\uff0c\u5c06\u5404\u79cdlabel\u8fdb\u884c\u4e86\u5408\u5e76\u3002<\/p>\n<pre class=\"post-pre\"><code><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\">metadata<\/span><span class=\"pi\">:<\/span>\r\n  <span class=\"na\">name<\/span><span class=\"pi\">:<\/span> <span class=\"s\">sample-deployment<\/span>\r\n<span class=\"na\">spec<\/span><span class=\"pi\">:<\/span>\r\n  <span class=\"na\">replicas<\/span><span class=\"pi\">:<\/span> <span class=\"m\">2<\/span>\r\n  <span class=\"na\">selector<\/span><span class=\"pi\">:<\/span>\r\n    <span class=\"na\">matchLabels<\/span><span class=\"pi\">:<\/span>\r\n      <span class=\"c1\"># \u5f8c\u8ff0\u306espec.template.metadata.labels.app\u3068\u5408\u308f\u305b\u308b<\/span>\r\n      <span class=\"na\">app<\/span><span class=\"pi\">:<\/span> <span class=\"s\">sample-app<\/span>\r\n  <span class=\"na\">template<\/span><span class=\"pi\">:<\/span>\r\n    <span class=\"na\">metadata<\/span><span class=\"pi\">:<\/span>\r\n      <span class=\"na\">labels<\/span><span class=\"pi\">:<\/span>\r\n        <span class=\"c1\"># \u4e0a\u8a18\u306espec.selector.matchLabels.app\u3068\u5408\u308f\u305b\u308b<\/span>\r\n        <span class=\"na\">app<\/span><span class=\"pi\">:<\/span> <span class=\"s\">sample-app<\/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=\"c1\"># Docker\u30b3\u30f3\u30c6\u30ca\u540d<\/span>\r\n        <span class=\"pi\">-<\/span> <span class=\"na\">name<\/span><span class=\"pi\">:<\/span> <span class=\"s\">http-container<\/span>\r\n          <span class=\"c1\"># \u5229\u7528\u3059\u308bDocker\u30a4\u30e1\u30fc\u30b8<\/span>\r\n          <span class=\"na\">image<\/span><span class=\"pi\">:<\/span> <span class=\"s\">php:7.0-apache<\/span>\r\n          <span class=\"c1\"># local\u30a4\u30e1\u30fc\u30b8\u5229\u7528\u3002\u305f\u3060\u3057\u3001local\u306b\u6307\u5b9a\u3057\u305f\u30a4\u30e1\u30fc\u30b8\u304c\u5b58\u5728\u3057\u306a\u3044\u5834\u5408\u306f\u30ec\u30dd\u30b8\u30c8\u30ea\u3092\u53c2\u7167\u3059\u308b<\/span>\r\n          <span class=\"na\">imagePullPolicy<\/span><span class=\"pi\">:<\/span> <span class=\"s\">IfNotPresent<\/span>\r\n          <span class=\"na\">ports<\/span><span class=\"pi\">:<\/span>\r\n            <span class=\"c1\"># service.yml\u3067\u5b9a\u7fa9\u3059\u308b\u5916\u90e8\u516c\u958b\u7528port\u8a2d\u5b9a\u306e\u7b87\u6240\u3068\u540d\u524d\u3092\u5408\u308f\u305b\u308b\u3053\u3068\u3067bind\u3055\u308c\u308b<\/span>\r\n            <span class=\"c1\"># name\u306f15\u6587\u5b57\u4ee5\u5185\u3067\u306a\u3044\u3068\u30a8\u30e9\u30fc\u306b\u306a\u308b<\/span>\r\n            <span class=\"pi\">-<\/span> <span class=\"na\">name<\/span><span class=\"pi\">:<\/span> <span class=\"s\">ha-inner-port<\/span>\r\n              <span class=\"c1\"># \u30b3\u30f3\u30c6\u30ca\u5185\u306eport<\/span>\r\n              <span class=\"na\">containerPort<\/span><span class=\"pi\">:<\/span> <span class=\"m\">80<\/span>\r\n<\/code><\/pre>\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\">Service<\/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\">sample-service<\/span>\r\n<span class=\"na\">spec<\/span><span class=\"pi\">:<\/span>\r\n  <span class=\"na\">selector<\/span><span class=\"pi\">:<\/span>\r\n    <span class=\"c1\"># deployment.yml\u306espec.selector.matchLabels.app\u3068\u5408\u308f\u305b\u308b<\/span>\r\n    <span class=\"na\">app<\/span><span class=\"pi\">:<\/span> <span class=\"s\">sample-app<\/span>\r\n  <span class=\"na\">ports<\/span><span class=\"pi\">:<\/span>\r\n    <span class=\"pi\">-<\/span> <span class=\"na\">name<\/span><span class=\"pi\">:<\/span> <span class=\"s\">ha-outer-port<\/span>\r\n      <span class=\"c1\"># \u5916\u90e8\u516c\u958b\u3059\u308bport<\/span>\r\n      <span class=\"na\">port<\/span><span class=\"pi\">:<\/span> <span class=\"m\">8080<\/span>\r\n      <span class=\"c1\"># deployment.yml\u3067\u5b9a\u7fa9\u3057\u305fport\u540d\u3068\u5408\u308f\u305b\u308b\u3053\u3068\u3067bind\u3055\u308c\u308b<\/span>\r\n      <span class=\"na\">targetPort<\/span><span class=\"pi\">:<\/span> <span class=\"s\">ha-inner-port<\/span>\r\n  <span class=\"na\">type<\/span><span class=\"pi\">:<\/span> <span class=\"s\">NodePort<\/span>\r\n<\/code><\/pre>\n<h3>\u7533\u8bf7<\/h3>\n<pre class=\"post-pre\"><code><span class=\"gp\">$<\/span> <span class=\"nb\">sudo <\/span>kubectl apply <span class=\"nt\">-f<\/span> pod.yml\r\n<span class=\"go\">pod\/nginx created\r\n<\/span><\/code><\/pre>\n<h3>\u786e\u8ba4 LABEL<\/h3>\n<pre class=\"post-pre\"><code><span class=\"gp\">$<\/span> <span class=\"nb\">sudo <\/span>kubectl get all <span class=\"nt\">--show-labels<\/span>\r\n<span class=\"go\">NAME                                     READY   STATUS    RESTARTS   AGE   LABELS\r\npod\/sample-deployment-85f4cb9d7c-2qncx   1\/1     Running   0          20s   app=sample-app,pod-template-hash=85f4cb9d7c\r\n\r\n\r\nNAME                     TYPE        CLUSTER-IP    EXTERNAL-IP   PORT(S)          AGE    LABELS\r\n<\/span><span class=\"gp\">service\/kubernetes       ClusterIP   10.96.0.1     &lt;none&gt;<\/span>        443\/TCP          111m   <span class=\"nv\">component<\/span><span class=\"o\">=<\/span>apiserver,provider<span class=\"o\">=<\/span>kubernetes\r\n<span class=\"gp\">service\/sample-service   NodePort    10.98.7.194   &lt;none&gt;<\/span>        8080:32661\/TCP   20s    <span class=\"nv\">app<\/span><span class=\"o\">=<\/span>http-service\r\n<span class=\"go\">\r\n\r\nNAME                                READY   UP-TO-DATE   AVAILABLE   AGE   LABELS\r\n<\/span><span class=\"gp\">deployment.apps\/sample-deployment   1\/1     1            1           20s   &lt;none&gt;<\/span>\r\n<span class=\"go\">\r\nNAME                                           DESIRED   CURRENT   READY   AGE   LABELS\r\nreplicaset.apps\/sample-deployment-85f4cb9d7c   1         1         1       20s   app=sample-app,pod-template-hash=85f4cb9d7c\r\n<\/span><\/code><\/pre>\n<h3>\u786e\u8ba4\u52a8\u4f5c<\/h3>\n<p>\u53ea\u8981\u80fd\u6d4f\u89c8\u7f51\u9875\uff0c\u5c31\u8bf4\u660e\u6709\u6765\u81eaService\u5230Deployment\u7684\u8bf7\u6c42\u6d41\u52a8\u4e86\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"gp\">$<\/span> curl <span class=\"si\">$(<\/span><span class=\"nb\">sudo <\/span>minikube service sample-service <span class=\"nt\">--url<\/span><span class=\"si\">)<\/span>\r\n<span class=\"gp\">&lt;!DOCTYPE HTML PUBLIC \"-\/\/IETF\/\/DTD HTML 2.0\/\/EN\"&gt;<\/span>\r\n<span class=\"gp\">&lt;html&gt;<\/span>&lt;<span class=\"nb\">head<\/span><span class=\"o\">&gt;<\/span>\r\n<span class=\"gp\">&lt;title&gt;<\/span>403 Forbidden&lt;\/title&gt;\r\n<span class=\"gp\">&lt;\/head&gt;<\/span>&lt;body&gt;\r\n<span class=\"gp\">&lt;h1&gt;<\/span>Forbidden&lt;\/h1&gt;\r\n<span class=\"gp\">&lt;p&gt;<\/span>You don<span class=\"s1\">'t have permission to access \/\r\n<\/span><span class=\"gp\">on this server.&lt;br \/&gt;<\/span>\r\n<span class=\"gp\">&lt;\/p&gt;<\/span>\r\n<span class=\"gp\">&lt;hr&gt;<\/span>\r\n<span class=\"gp\">&lt;address&gt;<\/span><span class=\"s1\">Apache\/2.4.25 (Debian) Server at 172.21.115.122 Port 32691&lt;\/address&gt;\r\n<\/span><span class=\"gp\">&lt;\/body&gt;<\/span><span class=\"s1\">&lt;\/html&gt;\r\n<\/span><\/code><\/pre>\n<h2>LabelSelector\u7684\u4f7f\u7528\u65b9\u6cd5<\/h2>\n<p>LabelSelector\u6709\u4ee5\u4e0b\u4e24\u79cd\u7c7b\u578b\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">matchLabels<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">matchExpressions<\/ul>\n<h3>\u5339\u914d\u6807\u7b7e<\/h3>\n<p>\u6307\u5b9a\u7684\u6807\u7b7e\u4e0e\u6240\u6709\u5339\u914d\u7684\u5185\u5bb9\u90fd\u5c06\u6210\u4e3a\u76ee\u6807\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"na\">matchLabels<\/span><span class=\"pi\">:<\/span>\r\n  <span class=\"na\">app<\/span><span class=\"pi\">:<\/span> <span class=\"s\">nginx<\/span>\r\n  <span class=\"na\">tier<\/span><span class=\"pi\">:<\/span> <span class=\"s\">frontend<\/span>\r\n<\/code><\/pre>\n<h3>\u5339\u914d\u8868\u8fbe\u5f0f<\/h3>\n<p>\u5728matchExpressions\u4e2d\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528operator\u8bbe\u7f6e\u7075\u6d3b\u7684\u6761\u4ef6\u3002<br \/>\n\u53ef\u4ee5\u6307\u5b9a\u4ee5\u4e0b\u5185\u5bb9\u4f5c\u4e3aoperator\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">In<\/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\">NotIn<\/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\">Exists<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">DoesNotExists<\/ul>\n<p>\u5177\u4f53\u7684\u7684\u5199\u6cd5\u5982\u4e0b\u6240\u793a\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"na\">matchExpressions<\/span><span class=\"pi\">:<\/span>\r\n<span class=\"c1\"># env\u304cprod\u304bstg\u306e\u3044\u305a\u308c\u304b\u3067\u3042\u308b\u5834\u5408<\/span>\r\n<span class=\"pi\">-<\/span> <span class=\"na\">key<\/span><span class=\"pi\">:<\/span> <span class=\"s\">env<\/span>\r\n  <span class=\"na\">operator<\/span><span class=\"pi\">:<\/span> <span class=\"s\">In<\/span>\r\n  <span class=\"na\">values<\/span><span class=\"pi\">:<\/span> <span class=\"pi\">[<\/span><span class=\"nv\">prod<\/span><span class=\"pi\">,<\/span> <span class=\"nv\">stg<\/span><span class=\"pi\">]<\/span>\r\n<span class=\"c1\"># app\u304cprod\u304bstg\u306e\u3044\u305a\u308c\u304b\u3067\u3082\u306a\u3044\u5834\u5408<\/span>\r\n<span class=\"pi\">-<\/span> <span class=\"na\">key<\/span><span class=\"pi\">:<\/span> <span class=\"s\">app<\/span>\r\n  <span class=\"na\">operator<\/span><span class=\"pi\">:<\/span> <span class=\"s\">NotIn<\/span>\r\n  <span class=\"na\">values<\/span><span class=\"pi\">:<\/span> <span class=\"pi\">[<\/span><span class=\"nv\">sample001<\/span><span class=\"pi\">,<\/span> <span class=\"nv\">sample002<\/span><span class=\"pi\">]<\/span>\r\n<span class=\"c1\"># app\u304c\u5b58\u5728\u3059\u308b\u5834\u5408<\/span>\r\n<span class=\"pi\">-<\/span> <span class=\"na\">key<\/span><span class=\"pi\">:<\/span> <span class=\"s\">app<\/span>\r\n  <span class=\"na\">operator<\/span><span class=\"pi\">:<\/span> <span class=\"s\">Exists<\/span>\r\n<span class=\"c1\"># tier\u304c\u5b58\u5728\u3059\u308b\u5834\u5408<\/span>\r\n<span class=\"pi\">-<\/span> <span class=\"na\">key<\/span><span class=\"pi\">:<\/span> <span class=\"s\">tier<\/span>\r\n  <span class=\"na\">operator<\/span><span class=\"pi\">:<\/span> <span class=\"s\">DoesNotExist<\/span>\r\n<\/code><\/pre>\n<h3>\u4f8b\u5982<\/h3>\n<p>\u5982\u679c\u73af\u5883\u662f\u751f\u4ea7\u6216\u8005\u6d4b\u8bd5\u7684\u60c5\u51b5\u4e0b\uff0c\u8bbe\u7f6e\u6761\u4ef6\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"na\">matchExpressions<\/span><span class=\"pi\">:<\/span>\r\n<span class=\"pi\">-<\/span> <span class=\"na\">key<\/span><span class=\"pi\">:<\/span> <span class=\"s\">env<\/span>\r\n  <span class=\"na\">operator<\/span><span class=\"pi\">:<\/span> <span class=\"s\">In<\/span>\r\n  <span class=\"na\">values<\/span><span class=\"pi\">:<\/span> <span class=\"pi\">[<\/span><span class=\"nv\">prod<\/span><span class=\"pi\">,<\/span> <span class=\"nv\">stg<\/span><span class=\"pi\">]<\/span>\r\n<\/code><\/pre>\n<p>\u4ee5\u4e0b\u662f\u5728\u8fd9\u4e2a\u6761\u4ef6\u4e0b\u5339\u914d\u7684\u548c\u4e0d\u5339\u914d\u7684\u5185\u5bb9\u3002<\/p>\n<p>\u5339\u914d<\/p>\n<pre class=\"post-pre\"><code><span class=\"na\">labels<\/span><span class=\"pi\">:<\/span>\r\n  <span class=\"na\">app<\/span><span class=\"pi\">:<\/span> <span class=\"s\">sample-app<\/span>\r\n  <span class=\"na\">tier<\/span><span class=\"pi\">:<\/span> <span class=\"s\">frontend<\/span>\r\n  <span class=\"na\">env<\/span><span class=\"pi\">:<\/span> <span class=\"s\">prod<\/span>\r\n<\/code><\/pre>\n<p>\u5339\u914d<\/p>\n<pre class=\"post-pre\"><code><span class=\"na\">labels<\/span><span class=\"pi\">:<\/span>\r\n  <span class=\"na\">app<\/span><span class=\"pi\">:<\/span> <span class=\"s\">sample-app<\/span>\r\n  <span class=\"na\">tier<\/span><span class=\"pi\">:<\/span> <span class=\"s\">frontend<\/span>\r\n  <span class=\"na\">env<\/span><span class=\"pi\">:<\/span> <span class=\"s\">stg<\/span>\r\n<\/code><\/pre>\n<p>\u4e0d\u5339\u914d (B\u00f9<\/p>\n<pre class=\"post-pre\"><code><span class=\"na\">labels<\/span><span class=\"pi\">:<\/span>\r\n  <span class=\"na\">app<\/span><span class=\"pi\">:<\/span> <span class=\"s\">sample-app<\/span>\r\n  <span class=\"na\">tier<\/span><span class=\"pi\">:<\/span> <span class=\"s\">frontend<\/span>\r\n  <span class=\"na\">env<\/span><span class=\"pi\">:<\/span> <span class=\"s\">dev<\/span>\r\n<\/code><\/pre>\n<p>\u53c2\u8003\uff1aKubernetes\u9053\u573a\u7b2c\u516b\u5929 &#8211; ReplicaSet \/ Deployment\u76f8\u5173\u4e3b\u9898<\/p>\n<h2>NodeSelector\u7684\u4f7f\u7528\u65b9\u6cd5<\/h2>\n<p>NodeSelector\u662f\u4e00\u79cd\u673a\u5236\uff0c\u7528\u4e8e\u5c06Pod\u8c03\u5ea6\u5230\u7279\u5b9a\u7684\u8282\u70b9\u4e0a\u3002<br \/>\n\u5728\u8fd9\u91cc\uff0c\u4e5f\u4f7f\u7528\u4e86LabelSelector\uff0c\u4f46\u4e0e\u524d\u9762\u63d0\u5230\u7684\u4e0d\u540c\u4e4b\u5904\u5728\u4e8e\u65e0\u6cd5\u4f7f\u7528matchExpressions\uff0c\u53ea\u80fd\u8fdb\u884c\u5b8c\u5168\u5339\u914d\u3002<\/p>\n<p>\u4f5c\u4e3a\u4f8b\u5b50\uff0c\u5c1d\u8bd5\u5c06Pod\u8c03\u5ea6\u5230\u5177\u6709\u73af\u5883\u4e3adev\u7684\u6807\u7b7e\u7684Node\u4e0a\u3002<br \/>\n\u9996\u5148\uff0c\u786e\u8ba4\u6307\u5b9a\u4e0d\u5b58\u5728\u7684\u6807\u7b7e\u65f6\u4e0d\u4f1a\u8fdb\u884c\u8c03\u5ea6\uff0c\u7136\u540e\u6309\u7167\u5b58\u5728\u7684\u6807\u7b7e\u8fdb\u884c\u8c03\u5ea6\u7684\u6b65\u9aa4\u8fdb\u884c\u3002<\/p>\n<h3>\u5b9a\u4e49Pod<\/h3>\n<p>\u5c06\u73af\u5883\u8bbe\u7f6e\u4e3a\u5728\u5f00\u53d1\u4eba\u5458\u7684Node\u4e0a\u8fdb\u884c\u8c03\u5ea6\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\">node-selector<\/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\">nginx<\/span>\r\n    <span class=\"na\">image<\/span><span class=\"pi\">:<\/span> <span class=\"s\">nginx<\/span>\r\n  <span class=\"c1\"># \u4ee5\u4e0b\u3067Node\u306e\u6307\u5b9a\u3092\u3059\u308b<\/span>\r\n  <span class=\"na\">nodeSelector<\/span><span class=\"pi\">:<\/span>\r\n    <span class=\"na\">environment<\/span><span class=\"pi\">:<\/span> <span class=\"s\">dev<\/span>\r\n  <span class=\"na\">terminationGracePeriodSeconds<\/span><span class=\"pi\">:<\/span> <span class=\"m\">0<\/span>\r\n<\/code><\/pre>\n<h3>\u8bf7\u786e\u8ba4\u6807\u7b7e<\/h3>\n<p>\u4f46\u662f\uff0c\u4e0d\u5b58\u5728dev\u73af\u5883\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"gp\">$<\/span> <span class=\"nb\">sudo <\/span>kubectl get node <span class=\"nt\">--show-labels<\/span>\r\n<span class=\"go\">NAME       STATUS   ROLES    AGE     VERSION   LABELS\r\nminikube   Ready    master   3h35m   v1.14.3   beta.kubernetes.io\/arch=amd64,beta.kubernetes.io\/os=linux,kubernetes.io\/arch=amd64,kubernetes.io\/hostname=minikube,kubernetes.io\/os=linux,node-role.kubernetes.io\/master=\r\n<\/span><\/code><\/pre>\n<h3>\u8c03\u5ea6\u5931\u8d25<\/h3>\n<p>\u5982\u679c\u6307\u5b9a\u4e86\u4e0d\u5b58\u5728\u7684\u8282\u70b9\u6807\u7b7e\uff0c\u5219\u4f1a\u5bfc\u81f4\u9519\u8bef\u5e76\u4e14\u65e0\u6cd5\u8fdb\u884c\u8c03\u5ea6\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"gp\">$<\/span> <span class=\"nb\">sudo <\/span>kubectl describe pod\/node-selector\r\n<span class=\"gp\">#<\/span> <span class=\"k\">**<\/span>snip<span class=\"k\">**<\/span>\r\n<span class=\"go\">Events:\r\n  Type     Reason            Age                From               Message\r\n  ----     ------            ----               ----               -------\r\n  Warning  FailedScheduling  24s (x2 over 24s)  default-scheduler  0\/1 nodes are available: 1 node(s) didn't match node selector.\r\n<\/span><\/code><\/pre>\n<h3>\u5728\u8282\u70b9\u4e0a\u8d34\u6807\u7b7e\u3002<\/h3>\n<p>\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u5728Node\u4e0a\u6dfb\u52a0\u540d\u4e3a&#8221;environment: dev&#8221;\u7684\u6807\u7b7e\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"gp\">$<\/span> <span class=\"nb\">sudo <\/span>kubectl label node\/minikube <span class=\"nv\">environment<\/span><span class=\"o\">=<\/span>dev\r\n<\/code><\/pre>\n<p>\u5c06\u73af\u5883=dev\u6dfb\u52a0\u5230Label\u4e2d\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"gp\">$<\/span> <span class=\"nb\">sudo <\/span>kubectl get node <span class=\"nt\">--show-labels<\/span>\r\n<span class=\"go\">NAME       STATUS   ROLES    AGE     VERSION   LABELS\r\nminikube   Ready    master   3h41m   v1.14.3   beta.kubernetes.io\/arch=amd64,beta.kubernetes.io\/os=linux,environment=dev,kubernetes.io\/arch=amd64,kubernetes.io\/hostname=minikube,kubernetes.io\/os=linux,node-role.kubernetes.io\/master=\r\n<\/span><\/code><\/pre>\n<h3>\u786e\u8ba4\u5df2\u7ecf\u5b89\u6392\u4e86\u65e5\u7a0b\u3002<\/h3>\n<p>\u8fd9\u6837\uff0cPod\u5c31\u88ab\u8c03\u5ea6\u5230\u4e86Node\u4e0a\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"gp\">$<\/span> <span class=\"nb\">sudo <\/span>kubectl describe pod\/node-selector\r\n<span class=\"gp\">#<\/span> <span class=\"k\">**<\/span>snip<span class=\"k\">**<\/span>\r\n<span class=\"go\">Events:\r\n  Type     Reason            Age                    From               Message\r\n  ----     ------            ----                   ----               -------\r\n  Warning  FailedScheduling  2m28s (x5 over 6m30s)  default-scheduler  0\/1 nodes are available: 1 node(s) didn't match node selector.\r\n  Normal   Scheduled         101s                   default-scheduler  Successfully assigned default\/node-selector to minikube\r\n  Normal   Pulled            100s                   kubelet, minikube  Container image \"nginx:alpine\" already present on machine\r\n  Normal   Created           100s                   kubelet, minikube  Created container nginx\r\n  Normal   Started           100s                   kubelet, minikube  Started container nginx\r\n\r\n<\/span><span class=\"gp\">$<\/span> <span class=\"nb\">sudo <\/span>kubectl get pod\r\n<span class=\"go\">NAME            READY   STATUS    RESTARTS   AGE\r\nnode-selector   1\/1     Running   0          7m16s\r\n<\/span><\/code><\/pre>\n<h2>Annotation\u7684\u4f7f\u7528\u65b9\u6cd5<\/h2>\n<p>\u636e\u8bf4\u53ef\u4ee5\u505a\u4e0eLabel\u76f8\u540c\u7684\u4e8b\u60c5\uff0c\u4f46\u4e0eLabel\u4e0d\u540c\u7684\u662f\uff0c\u901a\u5e38\u4f1a\u5e26\u6709\u5143\u6570\u636e\u7b49\u3002<\/p>\n<blockquote><p>\u60a8\u53ef\u4ee5\u4f7f\u7528Kubernetes\u6ce8\u91ca\u4e3a\u5bf9\u8c61\u9644\u52a0\u4efb\u610f\u975e\u8bc6\u522b\u6027\u5143\u6570\u636e\u3002\u5de5\u5177\u548c\u5e93\u7b49\u5ba2\u6237\u7aef\u53ef\u4ee5\u68c0\u7d22\u6b64\u5143\u6570\u636e\u3002<\/p><\/blockquote>\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\">annotations-demo<\/span>\r\n  <span class=\"na\">annotations<\/span><span class=\"pi\">:<\/span>\r\n    <span class=\"na\">imageregistry<\/span><span class=\"pi\">:<\/span> <span class=\"s2\">\"<\/span><span class=\"s\">https:\/\/hub.docker.com\/\"<\/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\">nginx<\/span>\r\n    <span class=\"na\">image<\/span><span class=\"pi\">:<\/span> <span class=\"s\">nginx:1.7.9<\/span>\r\n    <span class=\"na\">ports<\/span><span class=\"pi\">:<\/span>\r\n    <span class=\"pi\">-<\/span> <span class=\"na\">containerPort<\/span><span class=\"pi\">:<\/span> <span class=\"m\">80<\/span>\r\n<\/code><\/pre>\n<h2>\u76f8\u5173\u6587\u7ae0<\/h2>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u3010Kubernetes\u306eAffinity\u3011\u305d\u306e\uff11 &#8211; Node Affinity\u306e\u4f7f\u3044\u65b9<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u3010Kubernetes\u306eAffinity\u3011\u305d\u306e\uff12 &#8211; Pod Affinity \/ Pod Anti-Affinity\u306e\u4f7f\u3044\u65b9<\/ul>\n<h2>\u8bf7\u63d0\u4f9b\u66f4\u591a\u4e0a\u4e0b\u6587\u4fe1\u606f\u4ee5\u4f7f\u6211\u4eec\u80fd\u591f\u5c06\u5176\u7ffb\u8bd1\u6210\u4e2d\u6587\u3002<\/h2>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Kubernetes\u9053\u5834 17\u65e5\u76ee &#8211; Label \/ NodeSelector \/ Annotation\u306b\u3064\u3044\u3066<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">Kubernetes\u306eLabel\u3068Annotation\u306e\u4f7f\u3044\u5206\u3051\u306b\u3064\u3044\u3066<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u6458\u8981 \u5728\u8fd9\u7bc7\u6587\u7ae0\u4e2d\uff0c\u6211\u4eec\u5c06\u89e3\u91ca\u5982\u4f55\u7f16\u5199Kubernetes\u7684\u6e05\u5355\u6587\u4ef6\u3002\u672c\u9875\u9762\u5c06\u5bf9\u4ee5\u4e0b\u4e09\u4e2a\u65b9\u9762\u8fdb\u884c\u8bf4\u660e\u3002 Lab [&hellip;]<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-36172","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>Kubernetes\u4e2d\u7684Label \/ NodeSelector \/ Annotation\u7684\u4f7f\u7528\u65b9\u6cd5 - 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\/kubernetes\u4e2d\u7684label-nodeselector-annotation\u7684\u4f7f\u7528\u65b9\u6cd5\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Kubernetes\u4e2d\u7684Label \/ NodeSelector \/ Annotation\u7684\u4f7f\u7528\u65b9\u6cd5\" \/>\n<meta property=\"og:description\" content=\"\u6458\u8981 \u5728\u8fd9\u7bc7\u6587\u7ae0\u4e2d\uff0c\u6211\u4eec\u5c06\u89e3\u91ca\u5982\u4f55\u7f16\u5199Kubernetes\u7684\u6e05\u5355\u6587\u4ef6\u3002\u672c\u9875\u9762\u5c06\u5bf9\u4ee5\u4e0b\u4e09\u4e2a\u65b9\u9762\u8fdb\u884c\u8bf4\u660e\u3002 Lab [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/kubernetes\u4e2d\u7684label-nodeselector-annotation\u7684\u4f7f\u7528\u65b9\u6cd5\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" 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