Virtual-environments: Add .net core 3.1 sdk to ubuntu-latest vmImage

[parrainc]

Tool information

• Tool name: ubuntu-latest vm Image
• Add or update? Add
• Desired version: .NET Core SDK 3.1.100
• Approximate size:
• If this is an add request:
  
  
  
  • Brief description of tool: .NET Core 3.1.x SDK
  
  
  • URL for tool's homepage: https://dotnet.microsoft.com/download/dotnet-core/3.0
  
  

Area for Triage:
.NET Core

Question, Bug, or Feature?:
Feature

Virtual environments affected

• [ ] macOS 10.15
• [ ] Ubuntu 16.04 LTS
• [X] Ubuntu 18.04 LTS
• [ ] Windows Server 2016 R2
• [ ] Windows Server 2019

Can this tool be installed during the build?
I think by using .netsdk installer task we can get the latest version of the sdk, but I'd be great if we have that built-in in the default vm image.

Are you willing to submit a PR?
Sure

[parrainc]

Apologize! Just figure there's an open issue in microsoft/azure-pipelines-image-generation repo, which seems to be the same problem I just reported here and looks like it was merged.

[maxim-lobanov]

@parrainc , please use this repository to track the issue. microsoft/azure-pipelines-image-generation is not maintained anymore.

PR https://github.com/actions/virtual-environments/pull/164 was merged recently, Changes will be delivered in 1 week.

[parrainc]

Perfect, thanks for the update!

[maxim-lobanov]

Closing the issue since changes were deployed