【Kubernetes实战】使用ConfigMap+Servie+StatefulSet搭建Redis

女爷i 2024-03-24 13:28 35阅读 0赞

## **目录** ##

一、环境安装

二、涉及到的组件

1、ConfigMap

2、Service

3、StatefulSet

三、实战

1、yml文件

2、创建

3、查看所有服务

4、测试

--------------------

## 一、环境安装 ##

参考

[【Kubernetes实战】（四）MiniKube方式部署][Kubernetes_MiniKube]

[【Kubernetes实战】（五）KubeAdm方式部署][Kubernetes_KubeAdm]

[【Kubernetes实战】（六）Kind方式部署][Kubernetes_Kind]

[【Kubernetes高阶】Linux安装 KubeSphere][Kubernetes_Linux_ KubeSphere]

## 二、涉及到的组件 ##

### 1、ConfigMap ###

相关使用知识参考：

[【Kubernetes实战】（二十四）Pod 控制器StatefulSet相关命令][Kubernetes_Pod _StatefulSet]

## 三、实战 ##

### 1、yml文件 ###

statefulset-redis.yaml

---
    apiVersion: v1
    kind: ConfigMap
    metadata:
      name: redis-conf
    data:
      redis.conf: |
        bind 0.0.0.0
        port 6379
        requirepass 1qaz2wsx.
        pidfile .pid
        appendonly yes
        cluster-config-file nodes-6379.conf
        pidfile /data/k8s/mnt/redis/log/redis-6379.pid
        cluster-config-file /data/k8s/mnt/redis/conf/redis.conf
        dir /data/k8s/mnt/redis/data/
        logfile "/data/k8s/mnt/redis/log/redis-6379.log"
        cluster-node-timeout 5000
        protected-mode no
    ---
    kind: Service
    apiVersion: v1
    metadata:
      labels:
        name: redis
      name: redis
    spec:
      type: NodePort
      ports:
        - name: redis
          port: 6379
          targetPort: 6379
          nodePort: 30020
      selector:
        name: redis
    ---
    apiVersion: apps/v1
    kind: StatefulSet
    metadata:
      name: redis
    spec:
      replicas: 3 
      serviceName: redis
      selector:
        matchLabels:
          name: redis
      template:
        metadata:
          labels:
            name: redis
        spec:
          initContainers:
            - name: init-redis
              image: busybox
              command: ['sh', '-c', 'mkdir -p /data/k8s/mnt/redis/log/;mkdir -p /data/k8s/mnt/redis/conf/;mkdir -p /data/k8s/mnt/redis/data/']
              volumeMounts:
                - name: data
                  mountPath: /data/k8s/mnt/redis/
          containers:
            - name: redis
              image: redis:5.0.8
              imagePullPolicy: IfNotPresent
              command:
                - sh
                - -c
                - "exec redis-server /data/k8s/mnt/redis/conf/redis.conf"
              ports:
                - containerPort: 6379
                  name: redis
                  protocol: TCP
              volumeMounts:
                - name: redis-config
                  mountPath: /data/k8s/mnt/redis/conf/
                - name: data
                  mountPath: /data/k8s/mnt/redis/
          volumes:
            - name: redis-config
              configMap:
                name: redis-conf
            - name: data
              hostPath:
                path: /data/k8s/mnt/redis/

###    2、创建 ###

kubectl create -f statefulset-redis.yaml -n dev

### 3、查看所有服务 ###

kubectl get all -n dev

![f3d0c308a27f49158827b6a14d376ae1.png][]

### 4、测试 ###

因为是用service的NodePort暴露的端口，所以外部 通过 Ip：30020 端口进行访问。

redis-cli -h hadoop101 -p 30020

![c398a14dc4d345f38af7bb5332bc4736.png][]

查看本地文件目录：

![56512cb1e2ce4295951d347c245af501.png][]

[Kubernetes_MiniKube]: https://blog.csdn.net/forest_long/article/details/129665163
[Kubernetes_KubeAdm]: https://blog.csdn.net/forest_long/article/details/129665224
[Kubernetes_Kind]: https://blog.csdn.net/forest_long/article/details/129665231
[Kubernetes_Linux_ KubeSphere]: https://blog.csdn.net/forest_long/article/details/129912610
[Kubernetes_ ConfigMap]: https://blog.csdn.net/forest_long/article/details/129869389
[Kubernetes_Service]: https://blog.csdn.net/forest_long/article/details/129770797
[Kubernetes_Pod _StatefulSet]: https://blog.csdn.net/forest_long/article/details/129915652
[f3d0c308a27f49158827b6a14d376ae1.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/24/9a77f62c53054b298ded2356a8b2882b.png
[c398a14dc4d345f38af7bb5332bc4736.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/24/372f975aa6de4412a7d1f8ecd10b87f3.png
[56512cb1e2ce4295951d347c245af501.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/24/f68e3875f94b4dcca4589ffebf8caad3.png