k8s怎么部署zookeeper集群

在Kubernetes中部署Zookeeper集群通常涉及以下步骤：

1. 创建Zookeeper配置文件：创建一个包含Zookeeper配置信息的ConfigMap对象，例如my-zookeeper-config.yaml，内容如下：

apiVersion: v1 kind: ConfigMap metadata:   name: my-zookeeper-config data:   zoo.cfg: |     tickTime=2000     initLimit=10     syncLimit=5     dataDir=/data     clientPort=2181 

2. 创建Zookeeper集群的StatefulSet：创建一个StatefulSet对象来管理Zookeeper集群的Pod，例如my-zookeeper-statefulset.yaml，内容如下：

apiVersion: apps/v1 kind: StatefulSet metadata:   name: my-zookeeper spec:   replicas: 3   serviceName: my-zookeeper   selector:     matchLabels:       app: my-zookeeper   template:     metadata:       labels:         app: my-zookeeper     spec:       containers:       - name: zookeeper         image: zookeeper:3.6.2         ports:         - containerPort: 2181         volumeMounts:         - name: data           mountPath: /data         env:         - name: ZOO_MY_ID           valueFrom:             fieldRef:               fieldPath: metadata.name         - name: ZOO_SERVERS           value: server.1=my-zookeeper-0.my-zookeeper.default.svc.cluster.local:2888:3888;2181 server.2=my-zookeeper-1.my-zookeeper.default.svc.cluster.local:2888:3888;2181 server.3=my-zookeeper-2.my-zookeeper.default.svc.cluster.local:2888:3888;2181   volumeClaimTemplates:   - metadata:       name: data     spec:       accessModes: [ "ReadWriteOnce" ]       resources:         requests:           storage: 1Gi 

3. 创建Headless Service：创建一个Headless Service对象用于将Zookeeper Pod之间的通信路由到正确的Pod，例如my-zookeeper-service.yaml，内容如下：

apiVersion: v1 kind: Service metadata:   name: my-zookeeper spec:   clusterIP: None   selector:     app: my-zookeeper   ports:   - port: 2181     targetPort: 2181 

4. 应用配置文件：使用kubectl apply命令将上述配置文件部署到Kubernetes集群中：

kubectl apply -f my-zookeeper-config.yaml kubectl apply -f my-zookeeper-statefulset.yaml kubectl apply -f my-zookeeper-service.yaml 

以上步骤将在Kubernetes中部署一个包含3个Zookeeper节点的集群，可以根据实际需求调整副本数和存储大小等参数。