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物联网云原生云边协同

一、物联网平台设计

1.物联网平台设计

IoT 平台总体设计:

  • 物联网平台（IoT）部署在云上，物联网设备通过边缘计算节点接入物联网平台
  • 物联网平台采用云原生设计，应用容器化部署，在云端实现容器的调度编排
  • 物理网平台实现云边协同，云作为控制平面，边作为计算平台
  • 云端物联网平台选择开源物联网平台 ThingsBoard 社区版
  • 边缘计算节点选择 ThingsBoard Edge 接入物联网设备

IoT 云边协同设计:

  • Kubernetes 在云端部署 ThingsBoard 平台
  • KubeEdge 在边缘节点部署 ThingsBoard Edge
  • IoT 设备通过 MQTT 协议接入边缘计算节点
  • 通过 Kubernetes 、KubeEdge 实现云边协同

2.物联网平台实现

物联网平台（IoT）具体实现：

  1. 部署 Kubernetes 集群
  2. 部署 KubeEdge
  3. 部署 ThingsBoard 集群
  4. 部署 ThingsBoard Edge 边缘节点
  5. IoT 设备通过 MQTT 链接 ThingsBoard Edge
  6. MQTTX 工具模拟物联网设备

二、部署环境

1.节点配置

主机名 IP地址 角色
k8s-master 192.168.202.201 master
k8s-node1 192.168.202.202 node
k8s-node2 192.168.202.203 node
edge-1 192.168.202.211 edge

2.版本信息

信息 版本 备注
K8s v1.23.12  
centos 7.8 # cat /etc/redhat-release
KubeEdge v1.13.4  
ThingsBoard v3.5.1  
ThingsBoard Edge 3.5.1EDGE  
     

三、物联网平台部署

1.部署 Kubernetes 集群

部署 Kubernetes 集群参考

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# 部署 Kubernetes 集群

https://iothub.org.cn/docs/kubernetes/pro/deploy-kubernetes/

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[root@k8s-master ~]# kubectl get nodes
NAME         STATUS   ROLES                  AGE    VERSION
k8s-master   Ready    control-plane,master   27d    v1.23.12
k8s-node1    Ready    <none>                 27d    v1.23.12
k8s-node2    Ready    <none>                 10d    v1.23.12

2.部署 KubeEdge

部署 KubeEdge 参考

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# 部署 KubeEdge

https://iothub.org.cn/docs/kubeedge/deploy/deploy/

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[root@k8s-master ~]# kubectl get nodes
NAME         STATUS   ROLES                  AGE    VERSION
edge-1       Ready    agent,edge             4d4h   v1.23.17-kubeedge-v1.13.4
k8s-master   Ready    control-plane,master   27d    v1.23.12
k8s-node1    Ready    <none>                 27d    v1.23.12
k8s-node2    Ready    <none>                 10d    v1.23.12


[root@k8s-master ~]# kubectl get all -n kubeedge
NAME                               READY   STATUS    RESTARTS        AGE
pod/cloud-iptables-manager-592m5   1/1     Running   3 (3d22h ago)   4d5h
pod/cloud-iptables-manager-pg4pl   1/1     Running   3 (3d22h ago)   4d5h
pod/cloudcore-5959c5986f-8hsc4     1/1     Running   3 (3d22h ago)   4d5h

NAME                TYPE       CLUSTER-IP      EXTERNAL-IP   PORT(S)                                                                           AGE
service/cloudcore   NodePort   10.110.71.216   <none>        10000:30976/TCP,10001:31372/TCP,10002:31922/TCP,10003:30163/TCP,10004:31927/TCP   4d5h

NAME                                    DESIRED   CURRENT   READY   UP-TO-DATE   AVAILABLE   NODE SELECTOR   AGE
daemonset.apps/cloud-iptables-manager   2         2         2       2            2           <none>          4d5h

NAME                        READY   UP-TO-DATE   AVAILABLE   AGE
deployment.apps/cloudcore   1/1     1            1           4d5h

NAME                                   DESIRED   CURRENT   READY   AGE
replicaset.apps/cloudcore-5959c5986f   1         1         1       4d5h

3.部署 ThingsBoard 集群

部署 ThingsBoard 参考

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# ThingsBoard 单机部署
https://iothub.org.cn/docs/iot/deploy/deploy-single/

# ThingsBoard 集群部署
https://iothub.org.cn/docs/iot/deploy/deploy-cluster/

备注：考虑测试环境资源有限，部署单机代替云端 ThingsBoard 集群

4.部署 ThingsBoard Edge

4.1.创建 Edge 实例

在 ThingsBoard 服务端上配置 Edge

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# ThingsBoard 服务器地址
82.157.166.86

# 边缘键
1d2952e8-227e-b019-7eab-d29664b605c1

# 边缘密钥
iihb0i793etbqct62gpf

4.2.部署 PostgreSQL

postgresql.yaml

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[root@k8s-master kubeedge]# vim postgresql.yaml 

apiVersion: apps/v1
kind: Deployment
metadata:
  name: postgresql
spec:
  replicas: 1
  selector:
    matchLabels:
      app: postgresql
  template:
    metadata:
      labels:
        app: postgresql
    spec:
      nodeName: edge-1    #调度到指定机器
      hostNetwork: true   # 使用主机网络
      containers:
      - name: postgresql
        image: postgres:12
        env:
          - name: LANG
            value: "C.UTF-8"
          - name: TZ
            value: "Asia/Shanghai"      
          - name: POSTGRES_DB
            value: "postgres"
          - name: POSTGRES_USER
            value: "postgres"
          - name: POSTGRES_PASSWORD
            value: "postgres"

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[root@k8s-master thingsboard]# kubectl apply -f postgresql.yaml 
deployment.apps/postgresql created


[root@k8s-master thingsboard]# kubectl get all
NAME                              READY   STATUS    RESTARTS   AGE
pod/postgresql-867f894fd4-tthq8   1/1     Running   0          31s

NAME                 TYPE        CLUSTER-IP   EXTERNAL-IP   PORT(S)   AGE
service/kubernetes   ClusterIP   10.96.0.1    <none>        443/TCP   84d

NAME                         READY   UP-TO-DATE   AVAILABLE   AGE
deployment.apps/postgresql   1/1     1            1           31s

NAME                                    DESIRED   CURRENT   READY   AGE
replicaset.apps/postgresql-867f894fd4   1         1         1       31s

访问PostgreSQL

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# 访问地址

192.168.202.211
5432
postgres/postgres

4.3.创建数据库

在边缘节点创建数据库 tb-edge

4.4.部署 ThingsBoard Edge

tb-edge.yaml

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[root@k8s-master kubeedge]# vim tb-edge.yaml 

apiVersion: apps/v1
kind: Deployment
metadata:
  name: tb-edge
spec:
  replicas: 1
  selector:
    matchLabels:
      app: tb-edge
  template:
    metadata:
      labels:
        app: tb-edge
    spec:
      nodeName: edge-1    #调度到指定机器
      containers:
      - name: tb-edge
        image: thingsboard/tb-edge:3.5.1EDGE
        ports:
        - containerPort: 1883
          hostPort: 11883
        - containerPort: 8080
          hostPort: 18080
        env:
          - name: SPRING_DATASOURCE_URL
            value: "jdbc:postgresql://192.168.202.211:5432/tb-edge"          
          - name: SPRING_DATASOURCE_USERNAME
            value: "postgres"
          - name: SPRING_DATASOURCE_PASSWORD
            value: "postgres"
          - name: CLOUD_ROUTING_KEY
            value: "1d2952e8-227e-b019-7eab-d29664b605c1"     
          - name: CLOUD_ROUTING_SECRET
            value: "iihb0i793etbqct62gpf"     
          - name: CLOUD_RPC_HOST
            value: "82.157.166.86"
          - name: CLOUD_RPC_PORT
            value: "7070"
          - name: CLOUD_RPC_SSL_ENABLED
            value: "false"

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[root@k8s-master thingsboard]# kubectl apply -f tb-edge.yaml 
deployment.apps/tb-edge created


[root@k8s-master thingsboard]# kubectl get all
NAME                              READY   STATUS    RESTARTS   AGE
pod/postgresql-867f894fd4-tthq8   1/1     Running   0          14m
pod/tb-edge-67f4b7c8-xbpjg        1/1     Running   0          2m34s

NAME                 TYPE        CLUSTER-IP   EXTERNAL-IP   PORT(S)   AGE
service/kubernetes   ClusterIP   10.96.0.1    <none>        443/TCP   84d

NAME                         READY   UP-TO-DATE   AVAILABLE   AGE
deployment.apps/postgresql   1/1     1            1           14m
deployment.apps/tb-edge      1/1     1            1           2m34s

NAME                                    DESIRED   CURRENT   READY   AGE
replicaset.apps/postgresql-867f894fd4   1         1         1       14m
replicaset.apps/tb-edge-67f4b7c8        1         1         1       2m34s

访问 ThingsBoard Edge

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# 访问地址

http://192.168.202.211:18080/login
tenant@thingsboard.org
tenant


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#  参考
docker run -d --network host --name tb-edge --restart=always \
-e "SPRING_DATASOURCE_URL=jdbc:postgresql://192.168.202.166:5432/tb-edge" \
-e "SPRING_DATASOURCE_USERNAME=postgres" \
-e "SPRING_DATASOURCE_PASSWORD=postgres" \
-e "CLOUD_ROUTING_KEY=672b5ad6-cf07-c8af-e7cf-ac8a85114902" \
-e "CLOUD_ROUTING_SECRET=tuhk87tqb4l1463revxf" \
-e "CLOUD_RPC_HOST=82.157.166.86" \
-e "CLOUD_RPC_PORT=7070" \
-e "CLOUD_RPC_SSL_ENABLED=false" \
-v ~/.mytb-edge-data:/data \
-v ~/.mytb-edge-logs:/var/log/tb-edge \
thingsboard/tb-edge:3.5.1EDGE

四、物联网设备接入

1.创建设备

在 Edge 端创建设备 iot-device

在服务端查看设备

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# 访问令牌
1ThJ4grl3mXxxw7egHNo

2.MQTTX 工具

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192.168.202.211
11883
1ThJ4grl3mXxxw7egHNo

3.上传遥测

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v1/devices/me/telemetry


{
 "temperature": 42.2, 
 "humidity": 70,
 "hvacEnabled": true,
 "hvacState": "IDLE",
 "configuration": {
    "someNumber": 42,
    "someArray": [1,2,3],
    "someNestedObject": {"key": "value"}
 }
}

4.上传属性

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v1/devices/me/attributes


{
	"attribute1": "value1",
	"attribute2": true,
	"attribute3": 42.0,
	"attribute4": 73,
	"attribute5": {
		"someNumber": 42,
		"someArray": [1, 2, 3],
		"someNestedObject": {
			"key": "value"
		}
	}
}