k8s部署单机版nacos

来源：

https://www.jianshu.com/p/4f69d1b369d1

mysql

安装mysql如下：

• 创建mysql.yml文件如下：

[root@DoM01 nacos]# cat mysql.yaml
apiVersion: v1
kind: ReplicationController
metadata:
  name: mysql
  namespace: nacos
  labels:
    name: mysql
spec:
  replicas: 1
  selector:
    name: mysql
  template:
    metadata:
      labels:
        name: mysql
    spec:
      containers:
      - name: mysql
        image: nacos/nacos-mysql:5.7
        ports:
        - containerPort: 3306
        volumeMounts:
        - name: nacos-mysql
          mountPath: /var/lib/mysql
        env:
        - name: MYSQL_ROOT_PASSWORD
          value: "40010355"
        - name: MYSQL_DATABASE
          value: "nacos"
        - name: MYSQL_USER
          value: "nacos"
        - name: MYSQL_PASSWORD
          value: "40010300"
        - name: TZ
          value: Asia/Shanghai
      volumes:
      - name: nacos-mysql
        persistentVolumeClaim:
          claimName: nacos-mysql-pvc
---
kind: PersistentVolumeClaim
apiVersion: v1
metadata:
  name: nacos-mysql-pvc
  namespace: nacos
spec:
  accessModes:
  - ReadWriteMany
  resources:
    requests:
      storage: 20Gi
  storageClassName: nfs-client
---
apiVersion: v1
kind: Service
metadata:
  name: mysql
  namespace: nacos
  labels:
    name: mysql
spec:
  ports:
  - port: 3306
    targetPort: 3306
  selector:
    name: mysql

• 启动

#kubectl create -f mysql.yml

• 查看结果

root@DoM01 nacos]# kubectl get pod -n nacos
NAME          READY   STATUS    RESTARTS   AGE
mysql-lckvh   1/1     Running   0          40h

[root@DoM01 nacos]# kubectl get service -n nacos
NAME             TYPE        CLUSTER-IP     EXTERNAL-IP   PORT(S)                         AGE
mysql            ClusterIP   10.1.189.109   <none>        3306/TCP                        40h

nacos-standalone

• 创建nacos-stand.yaml文件如下

---
apiVersion: v1
kind: Service
metadata:
  name: nacos
  namespace: nacos
  labels:
    app: nacos
spec:
  type: NodePort
  ports:
    - port: 8848
      name: server
      targetPort: 8848
      nodePort: 30018
    - port: 7848
      name: rpc
      targetPort: 7848
      nodePort: 30019
  selector:
    app: nacos
---
apiVersion: v1
kind: Service
metadata:
  name: nacos-headless
  namespace: nacos
  labels:
    app: nacos
spec:
  ports:
    - port: 8848
      name: server
      targetPort: 8848
    - port: 7848
      name: rpc
      targetPort: 7848
  clusterIP: None
  selector:
    app: nacos
---
# 链接mysql数据库
apiVersion: v1
kind: ConfigMap
metadata:
  name: nacos-cm
  namespace: nacos
data:
  mysql.db.name: "nacos"
  mysql.port: "3306"
  mysql.user: "nacos"
  mysql.password: "40010355"
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: nacos
  namespace: nacos
spec:
  serviceName: nacos-headless
  replicas: 1
  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"
      containers:
        - name: nacos
          imagePullPolicy: Always
          image: nacos/nacos-server:latest
          resources:
            requests:
              memory: "2Gi"
              cpu: "500m"
          ports:
            - containerPort: 8848
              name: client-port
            - containerPort: 7848
              name: rpc
          env:
            - name: NACOS_REPLICAS
              value: "1"
            - 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_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"
            - name: TZ
              value: Asia/Shanghai
            - name: MODE
              value: standalone
          volumeMounts:
            - name: datadir
              mountPath: /home/nacos/data
            - name: logdir
              mountPath: /home/nacos/logs
  volumeClaimTemplates:
    - metadata:
        name: datadir
        annotations:
          volume.beta.kubernetes.io/storage-class: "nfs-client"
      spec:
        accessModes: [ "ReadWriteMany" ]
        resources:
          requests:
            storage: 10Gi
    - metadata:
        name: logdir
        annotations:
          volume.beta.kubernetes.io/storage-class: "nfs-client"
      spec:
        accessModes: [ "ReadWriteMany" ]
        resources:
          requests:
            storage: 10Gi
  selector:
    matchLabels:
      app: nacos

• 启动

#kubectl create -f nacos-stand.yaml