How to enable Azure Functions Core Tools HTTP logging under ubuntu

[savas-guven]

Hi All,

I suspect I have connectivity issues from the .NET Core parts of the core tools and it would seem the CLI_DEBUG flag doesn't enable much in the way of console outputs in the area of SCM connectivity (request/responses).

Is there any blog, documentation that shows how to enable the HTTP tracing/logs from specifically the places such as:

azure-functions-core-tools/src/Azure.Functions.Cli/Actions/AzureActions/PublishFunctionAppAction.cs

Line 525 in 2f5369a

using (var request = new HttpRequestMessage(HttpMethod.Get, new Uri("api/settings", UriKind.Relative)))

In a Vanilla .NET application one would enable these logs as following:
https://docs.microsoft.com/en-us/dotnet/framework/network-programming/how-to-configure-network-tracing

but what's the equivalent location for the ".config" or the resulting log files?

[savas-guven]

Just to give some additional background: The reason I suspect connectivity issues are as following:

• We have an Azure function that's on a Azure App Service Plan
• Its Private Endpointed to a VNET
• Which has only access to an on-prem network through ExpressRoute
  so all the SCM and normal web endpoints are reachable through a private link / private endpoint. (+ a Private DNS Zone to resolve this)

our deployment agents are on-premise; and the expectation is that the deployment should be reaching to the private endpoint of the SCM. Except the publish is failing.

I suspect connectivity but without logs, its difficult to prove conclusive one way or another, hence the question above.

By contrast, the AZ CLI (a python app) works, and logs well; but most of the endpoints it tries to reach (if not all) are on the public cloud and not through some obscure VNET / ExpressRoute.