官方参考文档：https://nacos.io/zh-cn/docs/use-nacos-with-kubernetes.html

 说明：

 1、若是没什么特别的需要，建议直接按照官方文档部署即可；官方访问是持久化，需要依赖nfs等共享储存，我修改的内容是将nacos持久化改成 emptyDir 临时目录挂载，同时又能满足自行调节nacos集群实例数。

2、nacos建库脚本请自行参考官网文档获取，官方文档写的已经很详细了

# nacos.yaml 可调整 集群副本数 扩容
---
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
    - port: 9848
      name: client-rpc
      targetPort: 9848
    - port: 9849
      name: raft-rpc
      targetPort: 9849
    ## 兼容1.4.x版本的选举端口
    - port: 7848
      name: old-raft-rpc
      targetPort: 7848
  clusterIP: None
  selector:
    app: nacos
---
apiVersion: v1
kind: ConfigMap
metadata:
  name: nacos-cm
data:
  mysql.db.name: "nacos"
  mysql.port: "3306"
  mysql.user: "nacos"
  mysql.password: "nacos"
  mysql.host: "nacos"
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: nacos
spec:
  serviceName: nacos-headless
  replicas: 1
  template:
    metadata:
      labels:
        app: nacos
      annotations:
        pod.alpha.kubernetes.io/initialized: "true"
    spec:
      initContainers:
        - name: peer-finder-plugin-install
          image: nacos/nacos-peer-finder-plugin:1.1
          imagePullPolicy: IfNotPresent
          volumeMounts:
            - mountPath: /home/nacos/plugins/peer-finder
              name: data
              subPath: peer-finder
      containers:
        - name: nacos
          image: nacos/nacos-server:latest
          imagePullPolicy: IfNotPresent
          ports:
            - containerPort: 8848
              name: client-port
            - containerPort: 9848
              name: client-rpc
            - containerPort: 9849
              name: raft-rpc
            - containerPort: 7848
              name: old-raft-rpc
          env:
            - name: NACOS_REPLICAS
              value: "3"

          # 若是使用单实例部署 nacos ,需要设置： MODE=standalone
          #  - name: MODE  ## 系统启动方式: 集群/单机; cluster/standalone默认 cluster 
          #    value: standalone

            - name: SERVICE_NAME
              value: "nacos-headless"
            - name: DOMAIN_NAME
              value: "cluster.local"
            - name: POD_NAMESPACE
              valueFrom:
                fieldRef:
                  apiVersion: v1
                  fieldPath: metadata.namespace
            - name: MYSQL_SERVICE_DB_NAME
              valueFrom:
                configMapKeyRef:
                  name: nacos-cm
                  key: mysql.db.name
            - name: MYSQL_SERVICE_PORT
              valueFrom:
                configMapKeyRef:
                  name: nacos-cm
                  key: mysql.port
            - name: MYSQL_SERVICE_USER
              valueFrom:
                configMapKeyRef:
                  name: nacos-cm
                  key: mysql.user
            - name: MYSQL_SERVICE_HOST
              valueFrom:
                configMapKeyRef:
                  name: nacos-cm
                  key: mysql.host
            - name: MYSQL_SERVICE_PASSWORD
              valueFrom:
                configMapKeyRef:
                  name: nacos-cm
                  key: mysql.password
            - name: NACOS_SERVER_PORT
              value: "8848"
            - name: NACOS_APPLICATION_PORT
              value: "8848"
            - name: PREFER_HOST_MODE
              value: "hostname"
          volumeMounts:
            - name: data
              mountPath: /home/nacos/plugins/peer-finder
              subPath: peer-finder
#            - name: data
#              mountPath: /home/nacos/data
#              subPath: data
#            - name: data
#              mountPath: /home/nacos/logs
#              subPath: logs

#   将 nacos 持久化改成 非持久化方式；官网使用的是 StorageClass 方式，需要依赖nfs等共享存储，以及共享存储插件实现
      volumes:
        - name: data
          emptyDir: {}
  selector:
    matchLabels:
      app: nacos