Fail to deploy a function project to a function app which host plan is not Flex Consumption

[v-ruizh]

OS: Win 11
Build Version: 20250320.1
Regression: Previous Release

Repro Steps:

1. Create a function project.
2. Create a function app with Consumption host plan.
3. Deploy the function project to the function app.
4. Check whether succeeds to deploy the function project to the function app.

Expect:
Succeed to deploy the function project to the function app.

Actual:
Fail to deploy the function project to the function app.

More Info:

1. Another error occurs when deploying a function project to Premium/App Service Plan function app.
   
2. This issue does not reproduce when deploying a function project to Flex Consumption function app.
3. This issue does not reproduce on the current released extension v1.16.3.

[v-ruizh]

Verified this issue on the latest main branch build 20250510.2, it only reproduces when deploying the project to a Linux Consumption function app.

[nturinski]

I think that this should only reproduce if you selected "managed identity" for the authorization source. I think it is also only for non-remote builds apps.

[v-ruizh]

Verified this issue on the latest main branch build 20250708.1, it only reproduces when deploying the project to a Linux Consumption function app with "managed identity" authorization source selected.

[v-ruizh]

This issue still reproduces on extension 1.20.2 build. Please get the details from below.

1. Deploy to Linux Consumption function app with "managed identity" resource authorization type selected.
   
2. Deploy to Windows Consumption function app/Linux Premium function app with "Secrets" resource authorization type selected.
   
3. Deploy to Linux Consumption function app with "Secrets" resource authorization type selected.
   

[nturinski]

Do you know if scenarios 2 and 3 deploy in older versions of the extension?

[v-ruizh]

Do you know if scenarios 2 and 3 deploy in older versions of the extension?

Verified this issue on extension previous released build 1.17.3, no error occurs when deploying project to Windows Consumption function app (Managed Identity/Secrets) or Linux Premium function app (Secrets).

But the below error occurs when deploying project to Linux Consumption function app (Managed Identity/Secrets).

[nturinski]

Why did you use such an old version for verifying scenarios 2 and 3? Did it not work for 1.18.0 and greater?

[v-ruizh]

Why did you use such an old version for verifying scenarios 2 and 3? Did it not work for 1.18.0 and greater?

This issue reproduces for 1.18.0 and greater, I checked previous builds individually, and 1.17.3 shows significantly better behavior.