Correct way to stop and start custom modules in Azure IoT

Question

Hi,

I have created 2 Custom Modules, 1st module gets message from an API and sends it to the 2nd Module. 2nd Module does some processing and sends it to IoT Hub. I have followed steps from tutorial-csharp-module after I do build and publish and Create deployment for single device the Modules start running, and I have no idea how to stop and then start them again.

Please help, as I am very new to it.

Thanks and Regards,
Satyam

Answer 1

Hello @Satyam Chauhan ,

I have deployed an IoTEdge Device with RHEL8.1 for this scenario and tested quickly few module deployments and their status management..

Please follow the below instructions on how to properly manage the IoT Edge modules.

Starting and stopping of the modules depends on the IoT Edge deployment on the device, and is controlled by EdgeAgent by design.
If you want to stop the module, the way to do that is to create a new deployment with the module status as Stopped. You can also stop the entire IoT Edge runtime ($>sudo iotedge system stop), which will stop the modules as well.

Creating deployment from the portal: you have to choose the desired state of the Module and then submit the deployment for that device.

Once the Deployment is submitted from the Azure portal, i see the particular module is now stopped.

Run the below commands on the device.

sudo iotedge system stop  

sudo iotedge system restart  

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