一、管理namespace

1.1 创建namespace

kubectl create namespace taos

1.2 namespaces列表

kubectl get namespaces -o wide

二、配置3份yaml文件

2.1 tdengine3-storage-class.yaml

创建name=tdengine3-storage-class、namespace=taos的存储类名

---
apiVersion: storage.k8s.io/v1
kind: StorageClass
metadata:
  name: tdengine3-storage-class
  namespace: taos
provisioner: diskplugin.csi.alibabacloud.com

2.2 taosd-service.yaml

创建name=taosd、 namespace=taos、app=tdengine的Service

---
apiVersion: v1
kind: Service
metadata:
  name: "taosd"
  namespace: "taos"
  labels:
    app: "tdengine"
spec:
  ports:
    - name: tcp6030
      protocol: "TCP"
      port: 6030
    - name: tcp6041
      protocol: "TCP"
      port: 6041
  selector:
    app: "tdengine"

2.3 taosd-tdengine.yaml

创建StatefulSet服务，需要关注以下参数与上述步骤设置的参数一致

• name: “tdengine”
• namespace: “taos”
• storage: “20Gi”(磁盘alicloud-disk-efficiency最低20Gi才能分配成功)
• storageClassName: “tdengine3-storage-class”

---
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: "tdengine"
  namespace: "taos"
  labels:
    app: "tdengine"
spec:
  serviceName: "taosd"
  replicas: 3
  updateStrategy:
    type: RollingUpdate
  selector:
    matchLabels:
      app: "tdengine"
  template:
    metadata:
      name: "tdengine"
      labels:
        app: "tdengine"
    spec:
      containers:
        - name: "tdengine"
          image: "tdengine/tdengine:3.0.0.0"
          imagePullPolicy: "IfNotPresent"
          ports:
            - name: tcp6030
              protocol: "TCP"
              containerPort: 6030
            - name: tcp6041
              protocol: "TCP"
              containerPort: 6041
          env:
            # POD_NAME for FQDN config
            - name: POD_NAME
              valueFrom:
                fieldRef:
                  fieldPath: metadata.name
            # SERVICE_NAME and NAMESPACE for fqdn resolve
            - name: SERVICE_NAME
              value: "taosd"
            - name: STS_NAME
              value: "tdengine"
            - name: STS_NAMESPACE
              valueFrom:
                fieldRef:
                  fieldPath: metadata.namespace
            # TZ for timezone settings, we recommend to always set it.
            - name: TZ
              value: "Asia/Shanghai"
            # TAOS_ prefix will configured in taos.cfg, strip prefix and camelCase.
            - name: TAOS_SERVER_PORT
              value: "6030"
            # Must set if you want a cluster.
            - name: TAOS_FIRST_EP
              value: "$(STS_NAME)-0.$(SERVICE_NAME).$(STS_NAMESPACE).svc.cluster.local:$(TAOS_SERVER_PORT)"
            # TAOS_FQND should always be set in k8s env.
            - name: TAOS_FQDN
              value: "$(POD_NAME).$(SERVICE_NAME).$(STS_NAMESPACE).svc.cluster.local"
          volumeMounts:
            - name: taosdata
              mountPath: /var/lib/taos
          readinessProbe:
            exec:
              command:
                - taos-check
            initialDelaySeconds: 5
            timeoutSeconds: 5000
          livenessProbe:
            exec:
              command:
                - taos-check
            initialDelaySeconds: 15
            periodSeconds: 20
  volumeClaimTemplates:
    - metadata:
        name: taosdata
      spec:
        accessModes:
          - "ReadWriteOnce"
        storageClassName: "tdengine3-storage-class"
        resources:
          requests:
            storage: "20Gi"

三、服务部署

3.1 部署StorageClass

Kubectl apply -f tdengine3-storage-class.yaml

3.2 部署Service

kubectl apply -f taosd-service.yaml 

3.3 部署StatefulSet

kubectl apply -f tdengine.yaml

3.4 查看启动日志

kubectl exec -it tdengine-0 -- tail -f /var/log/taos/taosdlog.0 

四、TDengine功能验证

4.1 验证：创建、查询

taos> show dnodes;
     id      |            endpoint            | vnodes | support_vnodes |   status   |       create_time       |              note              |
=================================================================================================================================================
           1 | tdengine-0.taosd.tdengine.s... |      0 |              4 | ready      | 2023-07-08 15:47:02.133 |                                |
           2 | tdengine-1.taosd.tdengine.s... |      0 |              4 | ready      | 2023-07-08 15:48:27.335 |                                |
           3 | tdengine-2.taosd.tdengine.s... |      0 |              4 | ready      | 2023-07-08 15:50:36.168 |                                |
Query OK, 3 rows in database (0.006285s)

taos> create database if not exists test replica 3;
Query OK, 0 of 0 rows affected (6.147246s)

taos> create table if not exists t1(ts timestamp, n int);
Query OK, 0 of 0 rows affected (0.014969s)

taos>  insert into t1 values(now, 1)(now+1s, 2);
Query OK, 2 of 2 rows affected (0.016294s)


taos> select * from t1;
           ts            |      n      |
========================================
 2023-07-08 17:37:11.969 |           1 |
 2023-07-08 17:37:12.969 |           2 |
 2023-07-08 17:37:13.452 |           1 |
 2023-07-08 17:37:14.170 |           1 |
 2023-07-08 17:37:14.452 |           2 |
 2023-07-08 17:37:14.775 |           1 |
 2023-07-08 17:37:15.170 |           2 |
 2023-07-08 17:37:15.397 |           1 |
 2023-07-08 17:37:15.775 |           2 |
 2023-07-08 17:37:15.870 |           1 |
 2023-07-08 17:37:16.220 |           1 |
 2023-07-08 17:37:16.397 |           2 |
 2023-07-08 17:37:16.546 |           1 |
 2023-07-08 17:37:16.828 |           1 |
 2023-07-08 17:37:16.870 |           2 |
 2023-07-08 17:37:17.154 |           1 |
 2023-07-08 17:37:17.220 |           2 |
 2023-07-08 17:37:17.546 |           2 |
 2023-07-08 17:37:17.828 |           2 |
 2023-07-08 17:37:18.154 |           2 |
Query OK, 20 rows in database (0.008757s)

4.2 三副本节点功能验证

当在三副本的集群中创建二副本的数据库会有错误提示：

taos> create database if not exists test_0 replica 2;

DB error: Invalid option replications: 2, only 1, 3 allowed (0.000204s)