opcuaDeviceShifu/

README

To try out OPC UA deviceShifu locally:

1. Install Shifu in your Kubernetes cluster(kind/k3d will work too)
2. Install python requirements:
   • pip3 install server/requirements.txt
3. Start the sample OPC UA server:

   localhost server % python3 server.py 
   Endpoints other than open requested but private key and certificate are not set.
   Listening on 0.0.0.0:4840
   

4. Create a configmap to import certificate for OPC UA (Optional, if you do not use certificate authentication, please skip this step)

   kubectl create configmap edgedevice-opcua-certificate --from-file=your_certificate_file.pem/your_certificate_file.der --from-file=your_private_key.pem -n deviceshifu
   

   If you don't have a certificate, you can use generate_cert.go to generate a local certificate for testing

   go run generate_cert.go
   

5. Deploy OPC UA deviceShifu, in shifu/examples/opcuaDeviceShifu:

   # kubectl apply -f opcua_deploy/
   configmap/opcua-configmap-0.0.1 created
   deployment.apps/edgedevice-opcua-deployment created
   service/edgedevice-opcua created
   edgedevice.shifu.edgenesis.io/edgedevice-opcua created
   

6. Start an Nginx pod and enter its shell:

   # kubectl run nginx --image=nginx
   

   # kubectl exec -it nginx -- bash
   root@nginx:/#
   

7. Interact with the OPC UA deviceShifu:

   root@nginx:/# curl edgedevice-opcua/get_time;echo
   2022-05-25 07:29:36.879869 +0000 UTC
   root@nginx:/# curl edgedevice-opcua/get_server;echo
   FreeOpcUa Python Server
   root@nginx:/# curl edgedevice-opcua/get_value;echo
   3175.5999999982073