kubernetes集群部署nacos:Caused by: java.lang.IllegalArgumentException: Could not resolve placeholder 'MYSQL_SERVICE_HOST'
按照官方文档部署。
数据库已经启动:
按照官网配置nacos-pvc-nfs.yaml :
--- apiVersion: v1 kind: Service metadata: name: nacos-headless labels: app: nacos annotations: service.alpha.kubernetes.io/tolerate-unready-endpoints: "true" spec: ports: - port: 8848 name: server targetPort: 8848 clusterIP: None selector: app: nacos --- apiVersion: v1 kind: ConfigMap metadata: name: nacos-cm data: mysql.master.db.name: "nacos_devtest" mysql.master.port: "3306" mysql.slave.port: "3306" mysql.master.user: "nacos" mysql.master.password: "nacos" --- apiVersion: apps/v1 kind: StatefulSet metadata: name: nacos spec: serviceName: nacos-headless replicas: 3 template: metadata: labels: app: nacos annotations: pod.alpha.kubernetes.io/initialized: "true" spec: affinity: podAntiAffinity: requiredDuringSchedulingIgnoredDuringExecution: - labelSelector: matchExpressions: - key: "app" operator: In values: - nacos topologyKey: "kubernetes.io/hostname" serviceAccountName: nfs-client-provisioner initContainers: - name: peer-finder-plugin-install image: nacos/nacos-peer-finder-plugin:latest imagePullPolicy: Always volumeMounts: - mountPath: "/home/nacos/plugins/peer-finder" name: plugindir containers: - name: nacos imagePullPolicy: Always image: nacos/nacos-server:latest resources: requests: memory: "3Gi" cpu: "500m" ports: - containerPort: 8848 name: client-port env: - name: NACOS_REPLICAS value: "3" - name: SERVICE_NAME value: "nacos-headless" - name: POD_NAMESPACE valueFrom: fieldRef: apiVersion: v1 fieldPath: metadata.namespace - name: MYSQL_MASTER_SERVICE_DB_NAME valueFrom: configMapKeyRef: name: nacos-cm key: mysql.master.db.name - name: MYSQL_MASTER_SERVICE_PORT valueFrom: configMapKeyRef: name: nacos-cm key: mysql.master.port - name: MYSQL_SLAVE_SERVICE_PORT valueFrom: configMapKeyRef: name: nacos-cm key: mysql.slave.port - name: MYSQL_MASTER_SERVICE_USER valueFrom: configMapKeyRef: name: nacos-cm key: mysql.master.user - name: MYSQL_MASTER_SERVICE_PASSWORD valueFrom: configMapKeyRef: name: nacos-cm key: mysql.master.password - name: NACOS_SERVER_PORT value: "8848" - name: PREFER_HOST_MODE value: "hostname" volumeMounts: - name: plugindir mountPath: /home/nacos/plugins/peer-finder - name: datadir mountPath: /home/nacos/data - name: logdir mountPath: /home/nacos/logs volumeClaimTemplates: - metadata: name: plugindir annotations: volume.beta.kubernetes.io/storage-class: "managed-nfs-storage" spec: accessModes: [ "ReadWriteMany" ] resources: requests: storage: 5Gi - metadata: name: datadir annotations: volume.beta.kubernetes.io/storage-class: "managed-nfs-storage" spec: accessModes: [ "ReadWriteMany" ] resources: requests: storage: 5Gi - metadata: name: logdir annotations: volume.beta.kubernetes.io/storage-class: "managed-nfs-storage" spec: accessModes: [ "ReadWriteMany" ] resources: requests: storage: 5Gi selector: matchLabels: app: nacos
启动后,pod一直没正常:
查看pod日志没发现异常:
根据配置文件中挂载的nfs路径,进入到nfs目录下,找到日志:
2020-03-24 14:21:45,800 INFO Nacos is starting... java.io.IOException: java.lang.IllegalArgumentException: Could not resolve placeholder 'MYSQL_SERVICE_HOST' in value "jdbc:mysql://${MYSQL_SERVICE_HOST}:${MYSQL_SERVICE_PORT:3306}/${MYSQL_SERVICE_DB_NAME}?characterEncoding=utf8&connectTimeout=1000&socketTimeout=3000&autoReconnect=true" at com.alibaba.nacos.config.server.service.BasicDataSourceServiceImpl.reload(BasicDataSourceServiceImpl.java:217) at com.alibaba.nacos.config.server.service.BasicDataSourceServiceImpl.init(BasicDataSourceServiceImpl.java:131) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleElement.invoke(InitDestroyAnnotationBeanPostProcessor.java:363) at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleMetadata.invokeInitMethods(InitDestroyAnnotationBeanPostProcessor.java:307) at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessBeforeInitialization(InitDestroyAnnotationBeanPostProcessor.java:136) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsBeforeInitialization(AbstractAutowireCapableBeanFactory.java:419) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1737) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:576) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:498) at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:320) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:318) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1083) at com.alibaba.nacos.config.server.service.DynamicDataSource.getDataSource(DynamicDataSource.java:54) at com.alibaba.nacos.config.server.service.PersistService.init(PersistService.java:91) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498)
根据日志提示,
MYSQL_SERVICE_HOST、
MYSQL_SERVICE_PORT、
MYSQL_SERVICE_DB_NAME
不能正常识别这些变量导致。
解决办法:
没找到直接解决的办法。换了一种方式搭建成功了,参考:https://www.cnblogs.com/zoujiaojiao/p/12561573.html