1.测试环境部署

• 创建数据库文件：https://github.com/alibaba/nacos/blob/master/distribution/conf/mysql-schema.sql
• 不使用nacos/nacos-mysql:5.7镜像的时候就需要使用上面的数据库初始化文件

1.1.storage csi准备

• storage class name：nfs-csi

1.2.mysql

apiVersion: v1
kind: ReplicationController
metadata:
  name: mysql
  namespace: nacos
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: "nacos"
        - name: MYSQL_DATABASE
          value: "nacos_db"
        - name: MYSQL_USER
          value: "nacos"
        - name: MYSQL_PASSWORD
          value: "nacos"
        - 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: 10Gi
  storageClassName: nfs-csi
---
apiVersion: v1
kind: Service
metadata:
  name: mysql
  namespace: nacos
spec:
  ports:
  - port: 3306
    targetPort: 3306
  selector:
    name: mysql

1.3.configmap

apiVersion: v1
kind: ConfigMap
metadata:
  name: nacos-cm
  namespace: nacos
data:
  mysql.db.name: "nacos_db"
  mysql.port: "3306"
  mysql.user: "nacos"
  mysql.password: "nacos"
  mysql.host: "mysql.nacos.svc.cluster.local"

1.4.nacos service

---
apiVersion: v1
kind: Service
metadata:
  name: nacos
  namespace: 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
spec:
  ports:
    - port: 8848
      name: server
      targetPort: 8848
    - port: 7848
      name: rpc
      targetPort: 7848
  clusterIP: None
  selector:
    app: nacos

1.5.statefulset

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_HOST
              valueFrom:
                configMapKeyRef:
                  name: nacos-cm
                  key: mysql.host
            - 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
            - name: NACOS_SERVERS
              value: "nacos-0.nacos.svc.cluster.local:8848"
            - name: SPRING_DATASOURCE_PLATFORM
              value: mysql
          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-csi"
      spec:
        accessModes: [ "ReadWriteMany" ]
        resources:
          requests:
            storage: 5Gi
    - metadata:
        name: logdir
        annotations:
          volume.beta.kubernetes.io/storage-class: "nfs-csi"
      spec:
        accessModes: [ "ReadWriteMany" ]
        resources:
          requests:
            storage: 5Gi
  selector:
    matchLabels:
      app: nacos

1.6.访问验证

• http://10.10.50.31:30018/nacos/

# 在web界面创建一个配置，随后登录数据库验证数据是否写入数据库
$ kubectl exec -it -n nacos pods/mysql-4k6m6 -- /bin/bash
bash-4.2# mysql -uroot -pnacos
mysql> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| mysql              |
| nacos_db           |
| performance_schema |
| sys                |
+--------------------+
5 rows in set (0.00 sec)

mysql> show tables;
+----------------------+
| Tables_in_nacos_db   |
+----------------------+
| config_info          |
| config_info_aggr     |
| config_info_beta     |
| config_info_tag      |
| config_tags_relation |
| group_capacity       |
| his_config_info      |
| permissions          |
| roles                |
| tenant_capacity      |
| tenant_info          |
| users                |
+----------------------+
12 rows in set (0.00 sec)

mysql> select * from config_info;
+----+---------+---------------+---------+----------------------------------+---------------------+---------------------+----------+----------------+----------+-----------+--------+-------+--------+------+----------+--------------------+
| id | data_id | group_id      | content | md5                              | gmt_create          | gmt_modified        | src_user | src_ip         | app_name | tenant_id | c_desc | c_use | effect | type | c_schema | encrypted_data_key |
+----+---------+---------------+---------+----------------------------------+---------------------+---------------------+----------+----------------+----------+-----------+--------+-------+--------+------+----------+--------------------+
|  1 | test    | DEFAULT_GROUP | 1       | c4ca4238a0b923820dcc509a6f75849b | 2024-04-26 10:42:19 | 2024-04-26 10:42:19 | NULL     | 10.100.106.128 |          |           | NULL   | NULL  | NULL   | text | NULL     |                    |
+----+---------+---------------+---------+----------------------------------+---------------------+---------------------+----------+----------------+----------+-----------+--------+-------+--------+------+----------+--------------------+
1 row in set (0.00 sec)

# 在这里能查询到nacos插入的数据说明部署成功，如果查询不到数据说明使用了nacos内置数据库

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