Can I use SCP to move a file into Azure Sphere?

peterfenn

bwilless

Hi folks, any advice on the above?

move file into module?

module have "ssh" ( not sure for protocol over 443 ) only over "usb" ... you can pack files on compilation

I was think based on your notes and comments, there is a real Linux file system. My wish is to move into /home/???? a file that has details like configuration to drive my code. IE changing the configuration could say interrogate a sensor 10 times and hour or 20 time an hour. That way limiting the the program re compiles to real logic changes and not silly parameter changes.

I am up for another way if it makes more sense.

File System is real but is controled ( firewall ) from Pluton subsytem ... I dont know ( for now ) how to write file  ... Pluton is as "dongle" ...  hardware "sudo"

There is MutableStorage  for user ( not explored from me - this days I will )

This is file in user root folder with permition for write

"home" folder is: /mnt/apps/GUID_FROM_APP_MANIFEST/ ....

By default you not have access to function open() but have API for opening this MutableFile

This days will explore ....

There are a few ways to move configuration data to a Sphere device . . .

1. If you only need to operate on one or two devices you could use a Direct Method call to send down a JSON object with your configuration:
   1. https://www.element14.com/community/external-link.jspa?url=http%3A%2F%2Favnet.me%2Fazure_sphere_direct_method_blog
2. If you want to send a file to be included with your application build, you can package the file up into the image_package file.  This Microsoft example (https://github.com/Azure/azure-sphere-samples/tree/master/Samples/ExternalMcuUpdate ) shows how to send a binary file to a Sphere device.  Note that the sample uses the binary file to update a connected MCU, but you can take the file and pull your configuration data.
3. You could also use device twins to send configuration data to your device.  The OOB examples #2 and #3, use device twins to do things like change the LEDs.

If you only need to operate on a single device, option #3 is simplest.  While option #1 should be easy and give you more flexibility in the structure of your data.

Brian

4. simple curl download

So... user files

READ ONLY Files

Packed files to application-image on compilation

User Home Dir ( read-only mount folder )

/mnt/apps/GUID_FROM_APP_MANIFEST/   packed_file_name.1 , packed_file_name.2 , ...

int Storage_OpenFileInImagePackage( "packed_file_name" );

return FD of /mnt/apps/GUID_FROM_APP_MANIFEST/packed_file_name

READ & WRITE Mutable Storage

User Home Dir (read-write mount folder, size = "MutableStorage": { "SizeKB": 8 }

/mnt/config/GUID_FROM_APP_MANIFEST/

Storage_OpenMutableFile() return FD of file name  /mnt/config/GUID_FROM_APP_MANIFEST/default

Folder /mnt/config/GUID_FROM_APP_MANIFEST can store other files, but by default open() not exist ...

How to read, write, upload, download file/s ... user-ware

App: Azure Explore
MUTABLE READ[0] 
MUTABLE WRITE[20] = "Mutable Storage Text"
MUTABLE READ[20] Mutable Storage Text


[TEST] OPEN: test.txt (fd = 4) No error information (0).


FOLDER: /mnt/config/dfb1b8e6-90a9-4480-a8c6-6267e5aed1a9
  FILE: /mnt/config/dfb1b8e6-90a9-4480-a8c6-6267e5aed1a9/test.txt
(empty)  
  FILE: /mnt/config/dfb1b8e6-90a9-4480-a8c6-6267e5aed1a9/default
Mutable Storage Text

I thank you wizio for your sample. I think the answer lies in the mutable storage. To me it acts like home and has a clearly identifiable way to get an ID. That would be the device assigned value(like a user id). I can tie this back to a website I provide which can have the changing data with a database back store. WHen I want to affect the programming, I simple change the back store which drives the code. Just perfect.

Clem

Just hint: app_manifest.json can be used as read-only setting file

see: my ... var_1 ....

{
    "Name": "", 
    "Capabilities": {
        "Uart": ["$AVNET_AESMS_ISU0_UART"], 
        "AllowedConnections": []
    }, 
    "CmdArgs": [], 
    "EntryPoint": "", 
    "SchemaVersion": 1, 
    "ComponentId": "9FAFA94E-3CFA-4B1D-8A13-50B82539A9B7",
    "my" : {
      "var_1" : "1",
      "var_2" : "2",
      "var_3" : "3"
    }
}

as example

the real file name is: /mnt/apps/GUID_FROM_APP_MANIFEST/app_manifest.json

Simple example how to use packed-image files with CURL as REST-API and certificates

https://github.com/Wiz-IO/platform-azure/tree/master/Examples/ArduinoCurlAmazonRestApi