how to use ELMS to upload module logs to blob

Question

Please see the reported issue on Azure-Samples GitHub: https://github.com/Azure-Samples/iotedge-logging-and-monitoring-solution/issues/36

Answer 1

To upload IoT Edge module logs to Azure Blob Storage using the IoT Edge Logging and Monitoring Solution (ELMS), follow these steps:

1. Generate a SAS URL for Your Blob Storage Container:
   • In the Azure portal, navigate to your storage account.
   • Go to the Containers section and select the container designated for log storage.
   • Click on Generate SAS to create a Shared Access Signature (SAS) URL. This URL grants the necessary permissions for uploading logs to the container.
2. Invoke the UploadModuleLogs Method:
   • In the Azure portal, access your IoT Hub and select the relevant IoT Edge device.
   • Under Direct Methods, choose InvokeUploadModuleLogs.
   • Provide the SAS URL in the payload. This action will prompt the device to upload its logs to the specified Blob Storage container.
3. Automate Log Uploads:
   • To schedule regular log uploads, utilize the ScheduleUploadModuleLogs method.
   • This can be achieved by setting up a timer-triggered Azure Function that periodically calls InvokeUploadModuleLogs.

Link : https://learn.microsoft.com/en-us/answers/questions/2123684/%28duplicate%29-elms-how-to-save-module-logs-to-blob-s