{"id":1866,"date":"2021-03-03T09:40:29","date_gmt":"2021-03-03T01:40:29","guid":{"rendered":"http:\/\/www.puzi7.com\/?p=1866"},"modified":"2021-03-03T09:40:29","modified_gmt":"2021-03-03T01:40:29","slug":"%e4%bd%bf%e7%94%a8kubernetes%e7%9a%84configmap%e4%b8%ba%e5%be%ae%e6%9c%8d%e5%8a%a1%e6%8f%90%e4%be%9b%e9%85%8d%e7%bd%ae%e4%b8%ad%e5%bf%83","status":"publish","type":"post","link":"https:\/\/www.puzi7.net\/?p=1866","title":{"rendered":"\u4f7f\u7528Kubernetes\u7684configmap\u4e3a\u5fae\u670d\u52a1\u63d0\u4f9b\u914d\u7f6e\u4e2d\u5fc3"},"content":{"rendered":"<span itemprop=\"description\"><p>\u5728\u505a\u5fae\u670d\u52a1\u90e8\u7f72\u5230kubernetes\u73af\u5883\u7684\u65f6\u5019\uff0c\u5982\u679c\u4e4b\u524d\u662fdocker\u8fd0\u884c\u73af\u5883\u7684\u8bdd\uff0c\u4e00\u822c\u4f1a\u4f7f\u7528consul, euraka, nacos\u7b49\u4f5c\u4e3a\u670d\u52a1\u53d1\u73b0\u6ce8\u518c\u914d\u7f6e\u4e2d\u5fc3\uff0c\u4ece\u800c\u4f5c\u4e3a\u5fae\u670d\u52a1\u73af\u5883\u7684\u91cd\u8981\u90e8\u5206\u6765\u914d\u7f6e\u548c\u8c03\u5ea6\u670d\u52a1\u95f4\u7684\u8bbf\u95ee\u3002<\/p>\n<p>\u7136\u800c\u5728kubernetes\u7684\u96c6\u7fa4\u73af\u5883\u91cc\u8fb9\uff0c\u5b9e\u9645\u4e0a\u4e5f\u53ea\u63d0\u4f9b\u4e86\u4e00\u4e9b\u7ec4\u4ef6\u4e5f\u4f5c\u4e3a\u914d\u7f6e\u4e2d\u5fc3\u548c\u670d\u52a1\u53d1\u73b0\u7684\u673a\u5236\u3002\u6bd4\u5982\u6211\u4eec\u4e0b\u8fb9\u4ecb\u7ecd\u7684configmap, secret\u4ee5\u53caenv\u7b49\u4e3a\u5e73\u53f0\u90e8\u7f72\u7684\u670d\u52a1\u63d0\u4f9b\u4e86\u914d\u7f6e\u4e2d\u5fc3\u7684\u529f\u80fd\u3002<\/p>\n<p>\u5728\u5fae\u670d\u52a1\u7684\u73af\u5883\u91cc\u8fb9\uff0c\u4e00\u822c\u670d\u52a1\u8bfb\u53d6\u914d\u7f6e\u4fe1\u606f\u7684\u65f6\u5019\u90fd\u662f\u5728\u670d\u52a1\u52a0\u8f7d\u542f\u52a8\u7684\u65f6\u5019\u3002\u4e00\u65e6\u670d\u52a1\u8fd0\u884c\u8d77\u6765\uff0c\u518d\u4fee\u6539\u914d\u7f6e\u4fe1\u606f\u662f\u4e0d\u80fd\u751f\u6548\u7684\uff0c\u9664\u975e\u6709\u81ea\u52a8\u5237\u65b0\u914d\u7f6e\u4fe1\u606f\u7684\u76d1\u542c\uff08\u8fd9\u4e2a\u5728springcloud\u7684\u7ec4\u4ef6\u91cc\u8fb9\u662f\u53ef\u4ee5\u914d\u7f6e\u7684\uff09\u3002<\/p>\n<p>\u73b0\u5728\u91cd\u70b9\u4ecb\u7ecd\u4e0bk8s\u7684configmap\uff0c\u987e\u540d\u601d\u4e49\u8fd9\u4e2a\u5c31\u662f\u505a\u914d\u7f6e\u4f7f\u7528\u7684\uff0c\u4f46\u662f\u6211\u4eec\u4e4b\u524d\u7684docker\u73af\u5883\u56e0\u4e3a\u5df2\u7ecf\u4f7f\u7528consul\u505a\u6ce8\u518c\uff0c\u914d\u7f6e\u4e2d\u5fc3\uff0c\u6240\u4ee5\u5982\u679c\u8fc1\u79fb\u5230k8s\u90e8\u7f72\u5e94\u7528\uff0c\u4e5f\u4f1a\u5728k8s\u91cc\u8fb9\u90e8\u7f72consul\u6765\u914d\u7f6e\u670d\u52a1\u3002\u4e0b\u8fb9\u6211\u4eec\u4ecb\u7ecd\u4f7f\u7528configmap\u6765\u66ff\u6362consul\u505a\u914d\u7f6e\u4e2d\u5fc3\u3002\u53e6\u5916\u5982\u679c\u8fd9\u4e9b\u914d\u7f6e\u4fe1\u606f\u662f\u9700\u8981\u52a0\u5bc6\u7684\uff0c\u53ef\u4ee5\u4f7f\u7528secret\u505a\u914d\u7f6e\uff0c\u529f\u80fd\u8ddfconfigmap\u662f\u7c7b\u4f3c\u7684\u3002<\/p>\n<p>\u524d\u63d0\uff1a<\/p>\n<ul>\n<li>\u521b\u5efa\u5355\u72ec\u7684namespace (farm)<\/li>\n<li>\u5982\u679ck8s cluster\u4f7f\u7528RBAC\uff0c\u9700\u8981\u521b\u5efaclusterrole\uff0cserviceaccount, \u5e76\u5c06\u4e24\u8005bind\uff0c\u5426\u5219\u4f7f\u7528default\u7684serviceaccount\u662f\u65e0\u6cd5\u8bbf\u95eeconfigmap\u7684\uff0c\u56e0\u4e3ak8s\u7684apiserver\u662f\u901a\u8fc7\u89d2\u8272\u8bbf\u95ee\u63a5\u53e3\u7684\u3002<\/li>\n<\/ul>\n<p>\u9996\u5148\uff0c\u9700\u8981\u521b\u5efaconfigmap in k8s\u00a0 (farm-service-configmap)<\/p>\n<p><code><span class=\"hljs-attr\">kind:<\/span> <span class=\"hljs-string\">ConfigMap<\/span> <span class=\"hljs-attr\">apiVersion:<\/span> <span class=\"hljs-string\">v1<\/span> <span class=\"hljs-attr\">metadata:<\/span> <span class=\"hljs-attr\">name:<\/span> <span class=\"hljs-string\">farm-service-configmap<\/span> <span class=\"hljs-attr\">namespace:<\/span> <span class=\"hljs-string\">farm<\/span> <span class=\"hljs-attr\">labels:<\/span> <span class=\"hljs-attr\">app:<\/span> <span class=\"hljs-string\">farm-user-service<\/span> <span class=\"hljs-attr\">data:<\/span> <span class=\"hljs-attr\">application.yaml:<\/span> <span class=\"hljs-string\">|- server: port: 10000<\/span><\/code><span class=\"hljs-string\">\u00a0<\/span><\/p>\n<p>\u5176\u6b21\uff0c\u521b\u5efaclusterrole, \u6ce8\u610f\u4e00\u5b9a\u8981\u5305\u62ecconfigmaps\u7684\u6743\u9650,<\/p>\n<p><code>kind: ClusterRole<br \/>\napiVersion: rbac.authorization.k8s.io\/v1<br \/>\nmetadata:<br \/>\nname: farm-config<br \/>\nlabels:<br \/>\napp.kubernetes.io\/instance: farm<br \/>\napp.kubernetes.io\/name: farm-config<br \/>\nrules:<br \/>\n- verbs:<br \/>\n- get<br \/>\n- list<br \/>\n- watch<br \/>\napiGroups:<br \/>\n- ''<br \/>\nresources:<br \/>\n- services<br \/>\n- endpoints<br \/>\n- verbs:<br \/>\n- get<br \/>\n- list<br \/>\n- watch<br \/>\napiGroups:<br \/>\n- ''<br \/>\nresources:<br \/>\n- secrets<br \/>\n- verbs:<br \/>\n- get<br \/>\n- list<br \/>\n- watch<br \/>\n- update<br \/>\n- create<br \/>\napiGroups:<br \/>\n- ''<br \/>\nresources:<br \/>\n- <span style=\"color: #ff0000;\"><strong>configmaps<\/strong><\/span><br \/>\n- verbs:<br \/>\n- list<br \/>\n- watch<br \/>\napiGroups:<br \/>\n- ''<br \/>\nresources:<br \/>\n- pods<br \/>\n- verbs:<br \/>\n- create<br \/>\n- patch<br \/>\n- list<br \/>\napiGroups:<br \/>\n- ''<br \/>\nresources:<br \/>\n- events<br \/>\n<\/code><\/p>\n<p>\u7136\u540e\u521b\u5efaserviceaccount, clusterrolebinding, \u901a\u8fc7clusterrolebinding\u628asa and clusterrole\u8ddf\u7ed1\u5b9a\u8d77\u6765, \u6ce8\u610f\u4e00\u5b9a\u8981\u6307\u5b9anamespace, \u5426\u5219\u5728\u90e8\u7f72\u670d\u52a1\u7684\u65f6\u5019\u5982\u679cnamespace\u4e0d\u4e00\u81f4\u5c31\u8fd8\u662f\u6ca1\u6709\u6743\u9650\u670d\u52a1api server<\/p>\n<p><code>--<\/code><br \/>\n<code>apiVersion: v1<\/code><br \/>\n<code>kind: ServiceAccount<\/code><br \/>\n<code>metadata:<\/code><br \/>\n<code> labels:<\/code><br \/>\n<code> app: farm-sa<\/code><br \/>\n<code>name: farm-sa<\/code><br \/>\n<code><span style=\"color: #ff0000;\">namespace: farm<\/span><\/code><\/p>\n<p><code>--<\/code><br \/>\n<code>apiVersion: rbac.authorization.k8s.io\/v1<\/code><br \/>\n<code>kind: ClusterRoleBinding<\/code><br \/>\n<code>metadata:<\/code><br \/>\n<code> name: farm-config<\/code><br \/>\n<code>roleRef:<\/code><br \/>\n<code>apiGroup: rbac.authorization.k8s.io<\/code><br \/>\n<code>kind: ClusterRole<\/code><br \/>\n<code>name: farm-config<\/code><br \/>\n<code>subjects:<\/code><br \/>\n<code>- kind: ServiceAccount<\/code><br \/>\n<code>name: farm-sa<\/code><br \/>\n<code><span style=\"color: #ff0000;\">namespace: farm<\/span><\/code><span style=\"color: #ff0000;\">\u00a0<\/span><\/p>\n<p>\u6700\u540e\uff0c\u5728deployment pod\u7684\u65f6\u5019\u4e00\u5b9a\u8981\u628aserviceaccountname\u7ed9\u6307\u5b9a\u4e86\u3002<code><\/code><code><\/code><\/p>\n<p>\u6848\u4f8b\u4e00\uff1a<\/p>\n<p><code>kind: Deployment<\/code><br \/>\n<code>apiVersion: apps\/v1<\/code><br \/>\n<code>metadata:<\/code><br \/>\n<code> name: farm-user-service<\/code><br \/>\n<code> namespace: farm<\/code><br \/>\n<code> labels:<\/code><br \/>\n<code> app: farm-user-service<\/code><br \/>\n<code>spec:<\/code><br \/>\n<code> replicas: 1<\/code><br \/>\n<code> selector:<\/code><br \/>\n<code> matchLabels:<\/code><br \/>\n<code> app: farm-user-service<\/code><br \/>\n<code> template:<\/code><br \/>\n<code> metadata:<\/code><br \/>\n<code> labels:<\/code><br \/>\n<code> app: farm-user-service<\/code><br \/>\n<code> spec:<\/code><br \/>\n<code> containers:<\/code><br \/>\n<code> - name: farm-user-service<\/code><br \/>\n<code> image: 'harbor.farm.com\/farm\/farm-user-service:v1.0.0'<\/code><br \/>\n<code> command:<\/code><br \/>\n<code> - \/bin\/sh<\/code><br \/>\n<code> - '-c'<\/code><br \/>\n<code> args:<\/code><br \/>\n<code> - &gt;-<\/code><br \/>\n<code> java -Djava.security.egd=file:\/dev\/.\/urandom -jar<\/code><br \/>\n<code> \/deployments\/farm-user-service-0.0.1-SNAPSHOT.jar<\/code><br \/>\n<code> --<span style=\"color: #ff0000;\">spring.cloud.kubernetes.config.name=farm-service-configmaps<\/span><\/code><br \/>\n<code> --<span style=\"color: #ff0000;\">spring.cloud.kubernetes.config.namespace=farm<\/span><\/code><br \/>\n<code> --spring.cloud.consul.enabled=false<\/code><br \/>\n<code> --spring.cloud.consul.port=8500<\/code><br \/>\n<code> --spring.application.name=farm-user-service<\/code><br \/>\n<code> ports:<\/code><br \/>\n<code> - containerPort: 9901<\/code><br \/>\n<code> protocol: TCP<\/code><br \/>\n<code> imagePullPolicy: Always<\/code><br \/>\n<code> restartPolicy: Always<\/code><br \/>\n<code> dnsPolicy: ClusterFirst<\/code><br \/>\n<strong><code> serviceAccountName: <span style=\"color: #ff0000;\">farm-sa<\/span><\/code><\/strong><br \/>\n<strong><code> serviceAccount: <span style=\"color: #ff0000;\">farm-sa<\/span><\/code><\/strong><\/p>\n<ul>\n<li>\u670d\u52a1\u4f7f\u7528springboot\u5f00\u53d1\u7684\u5fae\u670d\u52a1<\/li>\n<li>configmap\u914d\u7f6e\u670d\u52a1\u7684\u542f\u52a8\u7aef\u53e3\u4e3a10000<\/li>\n<li>k8s\u670d\u52a1\u4f1a\u4f18\u5148\u52a0\u8f7dconfigmap\u7684\u914d\u7f6e\uff0c\u518d\u52a0\u8f7dconsul\u7684\u914d\u7f6e\u4fe1\u606f\uff0c\u5982\u679c\u8fd8\u662f\u627e\u4e0d\u5230\u5c31\u4f1a\u53d6\u670d\u52a1\u91cc\u8fb9\u7684yml or properties\u6587\u4ef6\u7684\u914d\u7f6e<\/li>\n<\/ul>\n<ol>\n<li>springboot\u9879\u76ee\u6dfb\u52a0kubernets-config\u7684\u4f9d\u8d56\u00a0 \u00a0\u00a0<code><span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">dependency<\/span>&gt;<\/span> <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">groupId<\/span>&gt;<\/span>org.springframework.cloud<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">groupId<\/span>&gt;<\/span> <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">artifactId<\/span>&gt;<\/span>spring-cloud-starter-kubernetes-config<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">artifactId<\/span>&gt;<\/span> <span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">dependency<\/span>&gt;<\/span><\/code><\/li>\n<li>\u5728\u9879\u76ee\u542f\u52a8\u53c2\u6570\u6dfb\u52a0k8s configmap\u7684name and namespace\u00a0 \u00a0\u00a0<code>spring.cloud.kubernetes.config.name=farm-service-configmap, spring.cloud.kubernetes.config.namespace=farm<\/code>\u00a0, \u8fd9\u4e2a\u6307\u5b9a\u9879\u76ee\u8981\u52a0\u8f7d\u7684configmap\uff0c\u4f18\u5148\u52a0\u8f7dconfigmap<\/li>\n<li>\u542f\u52a8\u6d4b\u8bd5\uff0c\u67e5\u770b\u670d\u52a1\u65e5\u5fd7\uff0c\u7aef\u53e3\u662f\u5426\u662f10000<\/li>\n<\/ol>\n<p>\u6848\u4f8b\u4e8c\uff1a<\/p>\n<p><code>kind: Deployment<\/code><br \/>\n<code>apiVersion: apps\/v1<\/code><br \/>\n<code>metadata:<\/code><br \/>\n<code> name: farm-user-service<\/code><br \/>\n<code> namespace: farm<\/code><br \/>\n<code> labels:<\/code><br \/>\n<code> app: farm-user-service<\/code><\/p>\n<p><code>spec:<\/code><br \/>\n<code> replicas: 1<\/code><br \/>\n<code> selector:<\/code><br \/>\n<code> matchLabels:<\/code><br \/>\n<code> app: farm-user-service<\/code><br \/>\n<code> template:<\/code><br \/>\n<code> metadata:<\/code><br \/>\n<code> labels:<\/code><br \/>\n<code> app: farm-user-service<\/code><br \/>\n<code> spec:<\/code><br \/>\n<code> containers:<\/code><br \/>\n<code> - name: farm-user-service<\/code><br \/>\n<code> image: &gt;-<\/code><br \/>\n<code> harbor.farm.com\/farm\/farm-user-service:v1.0.0<\/code><br \/>\n<code> command:<\/code><br \/>\n<code> - .\/application<\/code><br \/>\n<code> args:<\/code><br \/>\n<code> - '-Dquarkus.consul-config.enabled=false'<\/code><br \/>\n<code> - '<span style=\"color: #ff0000;\">-Dquarkus.kubernetes-config.enabled=true<\/span>'<\/code><br \/>\n<code> - '-<span style=\"color: #ff0000;\">Dquarkus.kubernetes-config.namespace=farm<\/span>'<\/code><br \/>\n<code> - '-Dquarkus.kubernetes-config.config-maps=farm-service-configmap'<\/code><br \/>\n<code> ports:<\/code><br \/>\n<code> - containerPort: 9900<\/code><br \/>\n<code> protocol: TCP<\/code><br \/>\n<code> resources:<\/code><br \/>\n<code> limits:<\/code><br \/>\n<code> cpu: 300m<\/code><br \/>\n<code> memory: 512Mi<\/code><br \/>\n<code> imagePullPolicy: Always<\/code><br \/>\n<code> restartPolicy: Always<\/code><br \/>\n<code> dnsPolicy: ClusterFirst<\/code><br \/>\n<span style=\"color: #ff0000;\"><strong><code> serviceAccountName: <span style=\"color: #ff0000;\">farm-sa<\/span><\/code><\/strong><\/span><br \/>\n<span style=\"color: #ff0000;\"><strong><code> serviceAccount: <\/code><\/strong><\/span><strong><code><span style=\"color: #ff0000;\">farm-sa<\/span><\/code><\/strong><br \/>\n<code> schedulerName: default-scheduler<\/code><\/p>\n<ul>\n<li>\u4f7f\u7528quarkus\u5f00\u53d1\u7684\u5fae\u670d\u52a1<\/li>\n<li>configmap\u914d\u7f6e\u6570\u636e\u5e93\u7684\u8fde\u63a5\u5730\u5740<\/li>\n<\/ul>\n<ol>\n<li>quarkus\u9879\u76ee\u6dfb\u52a0\u4f9d\u8d56\uff0c \u8fd9\u91cc\u6709\u4e24\u4e2a\u914d\u7f6e\u6e90\uff0cconsul\u548ck8s\u7684config, \u6211\u4eec\u53ef\u4ee5\u9a8c\u8bc1config\u7684\u8bfb\u53d6\u987a\u5e8f\u662f\u4e0d\u662f\uff08configmap -&gt; consul -&gt; application.properties\uff09\n<div><code>&lt;dependency&gt;<\/code><\/div>\n<div><code>&lt;groupId&gt;io.quarkus&lt;\/groupId&gt;<\/code><\/div>\n<div><code>&lt;artifactId&gt;quarkus-consul-config&lt;\/artifactId&gt;<\/code><\/div>\n<div><code>&lt;\/dependency&gt;<\/code><\/div>\n<div><code>&lt;dependency&gt;<\/code><\/div>\n<div><code>&lt;groupId&gt;io.quarkus&lt;\/groupId&gt;<\/code><\/div>\n<div><code>&lt;artifactId&gt;quarkus-kubernetes&lt;\/artifactId&gt;<\/code><\/div>\n<div><code>&lt;\/dependency&gt;<\/code><\/div>\n<div><code>&lt;dependency&gt;<\/code><\/div>\n<div><code>&lt;groupId&gt;io.quarkus&lt;\/groupId&gt;<\/code><\/div>\n<div><code>&lt;artifactId&gt;quarkus-kubernetes-config&lt;\/artifactId&gt;<\/code><\/div>\n<div><code>&lt;\/dependency&gt;<\/code><\/div>\n<\/li>\n<li>\u670d\u52a1\u7684\u542f\u52a8\u53c2\u6570\u6dfb\u52a0\u5982\u4e0b\u914d\u7f6e\u00a0 , \u5f00\u542f\u8bfb\u53d6k8s-config,\u548cconsul-config\u7684\u529f\u80fd\n<div>\n<div><code>quarkus.kubernetes-config.enabled=true<\/code><\/div>\n<div><code>quarkus.kubernetes-config.namespace=farm<\/code><\/div>\n<div><code>quarkus.consul-config.enabled=true<\/code><\/div>\n<\/div>\n<\/li>\n<li>\u00a0 \u542f\u52a8\u670d\u52a1\uff0c\u9a8c\u8bc1\u670d\u52a1\u8fde\u63a5\u6570\u636e\u5e93\u4f7f\u7528\u7684\u662f\u5426\u662fk8s-configmap\u91cc\u8fb9\u7684\u5730\u5740\n<div><\/div>\n<div><\/div>\n<div>\u901a\u8fc7\u4e0a\u8ff0\u4e24\u4e2a\u6848\u4f8b\uff0c\u6211\u4eec\u53ef\u4ee5\u53d1\u73b0k8s\u7684configmap\u53ef\u4ee5\u4f5c\u4e3a\u670d\u52a1\u7684\u914d\u7f6e\u4e2d\u5fc3\u6765\u63d0\u4f9b\u914d\u7f6e\u4fe1\u606f\uff0c\u800c\u4e14k8s\u4e5f\u662f\u53ef\u4ee5\u81ea\u52a8\u53d1\u73b0\u670d\u52a1\u7684\uff0c\u56e0\u6b64\u5728k8s\u7684\u73af\u5883\u4e2d\u4f7f\u7528consul\u662f\u6ca1\u5fc5\u8981\u7684\u3002<\/div>\n<div><\/div>\n<div>\n<div>\u7531\u4e8eopenshift container platform\u4e5f\u662f\u4f7f\u7528k8s\u4f5c\u4e3a\u57fa\u7840\u7ec4\u4ef6\u7684\uff0c\u5b9e\u9645\u8fd0\u884c\u7684\u4e5f\u662fkubernetes,\u56e0\u6b64\u91cc\u8fb9\u7684configmap\u4e5f\u662f\u9002\u7528\u4e8e\u505a\u914d\u7f6e\u7ba1\u7406\u7684\u3002<\/div>\n<div><\/div>\n<\/div>\n<div><\/div>\n<\/li>\n<\/ol>\n<span>","protected":false},"excerpt":{"rendered":"<p class=\"excerpt\"><span itemprop=\"description\">\u5728\u505a\u5fae\u670d\u52a1\u90e8\u7f72\u5230kubernetes\u73af\u5883\u7684\u65f6\u5019\uff0c\u5982\u679c\u4e4b\u524d\u662fdocker\u8fd0\u884c\u73af\u5883\u7684\u8bdd\uff0c\u4e00\u822c\u4f1a&hellip;<\/span><\/p>\n<p class=\"more-link-p btn-align-right\"><a class=\"green zoom-btn\" href=\"https:\/\/www.puzi7.net\/?p=1866\">Read 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