centos7 kubernetes 部署rocketmq主从

在CentOS 7上使用Kubernetes部署RocketMQ主从架构，可以通过以下步骤实现： ### 1. 准备工作 确保你的Kubernetes集群已经安装并配置好，并且你有`kubectl`命令行工具可以使用。 ### 2. 创建命名空间 首先，创建一个新的命名空间来隔离RocketMQ的资源： ```bash kubectl create namespace rocketmq ``` ### 3. 创建持久化存储 为RocketMQ的主从节点创建持久化存储卷（Persistent Volume）和持久化存储卷声明（Persistent Volume Claim）： ```yaml # rocketmq-pv.yaml apiVersion: v1 kind: PersistentVolume metadata: name: rocketmq-pv spec: capacity: storage: 20Gi accessModes: - ReadWriteOnce hostPath: path: /data/rocketmq --- apiVersion: v1 kind: PersistentVolumeClaim metadata: name: rocketmq-pvc namespace: rocketmq spec: accessModes: - ReadWriteOnce resources: requests: storage: 20Gi ``` 应用配置： ```bash kubectl apply -f rocketmq-pv.yaml ``` ### 4. 部署RocketMQ主节点 创建一个Deployment来部署RocketMQ主节点： ```yaml # rocketmq-master-deployment.yaml apiVersion: apps/v1 kind: Deployment metadata: name: rocketmq-master namespace: rocketmq spec: replicas: 1 selector: matchLabels: app: rocketmq role: master template: metadata: labels: app: rocketmq role: master spec: containers: - name: rocketmq image: rocketmqinc/rocketmq:4.8.0 ports: - containerPort: 9876 - containerPort: 10911 env: - name: ROCKETMQ_NAME_SERVER value: "rocketmq-master:9876" - name: ROCKETMQ_BROKER_NAME value: "broker-a" - name: ROCKETMQ_BROKER_ID value: "0" volumeMounts: - name: rocketmq-storage mountPath: /root/rocketmq/store volumes: - name: rocketmq-storage persistentVolumeClaim: claimName: rocketmq-pvc ``` 应用配置： ```bash kubectl apply -f rocketmq-master-deployment.yaml ``` ### 5. 部署RocketMQ从节点 创建一个Deployment来部署RocketMQ从节点： ```yaml # rocketmq-slave-deployment.yaml apiVersion: apps/v1 kind: Deployment metadata: name: rocketmq-slave namespace: rocketmq spec: replicas: 1 selector: matchLabels: app: rocketmq role: slave template: metadata: labels: app: rocketmq role: slave spec: containers: - name: rocketmq image: rocketmqinc/rocketmq:4.8.0 ports: - containerPort: 9876 - containerPort: 10911 env: - name: ROCKETMQ_NAME_SERVER value: "rocketmq-master:9876" - name: ROCKETMQ_BROKER_NAME value: "broker-b" - name: ROCKETMQ_BROKER_ID value: "1" volumeMounts: - name: rocketmq-storage mountPath: /root/rocketmq/store volumes: - name: rocketmq-storage persistentVolumeClaim: claimName: rocketmq-pvc ``` 应用配置： ```bash kubectl apply -f rocketmq-slave-deployment.yaml ``` ### 6. 部署Service 创建一个Service来暴露RocketMQ的端口： ```yaml # rocketmq-service.yaml apiVersion: v1 kind: Service metadata: name: rocketmq namespace: rocketmq spec: selector: app: rocketmq ports: - name: namesrv port: 9876 targetPort: 9876 - name: broker port: 10911 targetPort: 10911 type: ClusterIP ``` 应用配置： ```bash kubectl apply -f rocketmq-service.yaml ``` ### 7. 验证部署 使用`kubectl`命令查看RocketMQ的Pod状态： ```bash kubectl get pods -n rocketmq ``` 通过查看日志来验证RocketMQ是否正常运行： ```bash kubectl logs <pod-name> -n rocketmq ```