Hello - Thanks for the very best IoT end to end implementation guideline. Learnt a lot.

While working on module 5 to setup a alert module, i found that below is line
---- BEGIN ORIGINAL CODE
var alertMsg = JsonConvert.DeserializeObject<Alert[]>(messageString)[0];
---- END
This was causing an deserialization error - reporting that the input messagestring is not a Json Array.
When i replaced it with the below correction, IT WORKED FINE so was wondering may be you had a setting where in messagestring was a Json array ??
--- BEGIN MODIFIED CODE
var alertMsg = JsonConvert.DeserializeObject < Alert >(messageString);
-- END

Hi,

I have solution where python module is communicating with HW and getting data over serial communication and passing the data to Azure Edge module using GatewayHostName.

Can you please help me to implement DPS with leaf device. How will i handle GatewayHostName to transfer data to Azure IoT Edge module.

Here we are appending GatewayHostName in connection string but in DPS we don't require Connection String.

Thanks,
Prateek

Hi,
I am trying to built and push azure edge solution using Azure DevOps

• My code is for Running in Windows container ( Windows-amd64)
• My code is in azure repository

As my code is in azure Pipeline , so while Building I have selected the Azure Pipelines in the agent pool

• Like bellow -->

Now for agent i Have Used "win1803" in the first and build the solution , now for release

I have created a tasks -->

This is the settings for the " IoT Edge Build" -->

Now getting error while i release the solution and in that in the " Build module images" i got the bellow error -->

• when i used " Windows 1803" Microsoft hosted agent while building -->

• when i used " vs2017-win2016 " i got the bellow error -->

https://textuploader.com/108xh

I was trying this transparent gateway implementation

while cloning python SDK, I noticed it's updated, the "build_all" folder is not there,
however, I had a back up of old python SDK that I copied in the device,
but when I was building the "setup.sh" I was getting the bellow error

edge001@EdgeDevice:~/azure-iot-sdk-python/build_all/linux$ sudo ./setup.sh
[sudo] password for edge001: 
sudo: ./setup.sh: command not found

Then I added the Permission and then re-ran the script

edge001@EdgeDevice:~/azure-iot-sdk-python/build_all/linux$ sudo chmod 777 setup.sh
edge001@EdgeDevice:~/azure-iot-sdk-python/build_all/linux$ sudo ./setup.sh
./setup.sh: line 13: ./c/build_all/linux/setup.sh: Permission denied

I have done this previously never faced this issue, how to fix this ?

@stevebus

Hi,

I am using transparent gateway implementation with Azure IoT Edge for one of our client.
Transparent gateway is reading data over serial and passing the data to Azure Edge Hub using ';GatewayHostName=mygateway.local'. I am able to get data on Edge module.

But i have implemented Device twin on transparent gateway. Invoking method on Azure platform and receiving on transparent gateway. I am able to invoke method using device twin on leaf device and able to report properties back, if i don't append ';GatewayHostName=mygateway.local' with connection string.

If i append ';GatewayHostName=mygateway.local' with connection string then i can invoke method ~one or two times max during the start of script. Later it never get invoked. Using below link for implementation-
https://github.com/AzureIoTGBB/azure-iot-edge-hol-linux/tree/master/module2

Python Code is not working in the above link. Can you please help me on this.

Regards,
Prateek

Hi @stevebus.

I'm following through your Hands on Lab (this tutorial should be the reference for the main IoT Edge as a Transparent Gateway documentation as it's so good) and I'm not clear what adding the entry to the /etc/hosts is for?

https://github.com/AzureIoTGBB/azure-iot-edge-hol-linux/tree/master/module1#additional-miscellaneous-setup

The docs state:
'There are a few final steps needed to set up our specific lab scenario. We are using our Edge device as a gateway, so we need
a) our IoT Device to be able to find it and
b) to have valid certificates so the IoT Device will open a successful TLS connection to the Edge

Add a host file entry for our Edge device -- this will let our "IoT Device" resolve and find our Edge gateway. To do this:

run 'sudo nano /etc/hosts'
add a row at the bottom with the following
127.0.0.1 mygateway.local
save and close the file (CTRL-O, CTRL-X)
confirm you can successfully "ping mygateway.local"
'

In my case I'm going to have maybe 50 Android "leaf" downstream devices that connect through IoT Edge as a transparent gateway.

Questions:

1. Are these instructions stating that we should add this entry to the "leaf" downstream device for their /etc/hosts entry or for adding this to the IoT Edge Gateway Device?

2. Why the 127.0.0.1 mygateway.local? I will give the IoT Edge Gateway Device as DNS name in the Azure Portal. Should I enter the DNS name here or what you have indicated 'mygateway.local'?

Thanks,

Chris