I like to start out small, and work from there. So first I upgraded one add-on without UI and without any settings - it worked out great. Then I upgraded another add-on, still without any UI, and still no problems. 

The problems

The problems started when I tried to upgrade this addon with UI to CMS 12. It works on my machinetm, but when I deploy my site with the addon to Azure, it does not. Locally it works on an Alloy site (both .NET5 and .NET6 and my personal blog .NET6)

The current code: https://github.com/tomahg/Gulla.Episerver.SqlStudio
The NuGet: https://www.nuget.org/packages/Gulla.Episerver.SqlStudio/2.0.10

After a while, I reallized that I need this zip-file with the same name as my module, containing nothing but module.config

This is needed for the controller and view to be recognized, and for this part of the MenuProvider

  public IEnumerable<MenuItem> GetMenuItems()
  {
      var url = Paths.ToResource(GetType(), "container");

      return new MenuItem[]
      {
          new UrlMenuItem("SQL", MenuPaths.Global + "/cms/sqlstudio", url)
          {
              IsAvailable = context => _configurationService.Enabled()
          }
      };
  }

...and maybe also the embedded resouces.

If I do nothing special, the module folder will not be created. In order to fix this I added the file msbuild/CopyModule.targets

<?xml version="1.0" encoding="utf-8"?>
<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003" ToolsVersion="4.0">
	<ItemGroup>
		<SourceScripts
		  Include="$(MSBuildThisFileDirectory)..\..\contentFiles\any\any\modules\_protected\**\*.*"/>
	</ItemGroup>

	<Target Name="CopyZipFiles" BeforeTargets="Build">
		<Copy
		  SourceFiles="@(SourceScripts)"
		  DestinationFolder="$(MSBuildProjectDirectory)\modules\_protected\%(RecursiveDir)"	/>
	</Target>
</Project>

After build, it will copy the zip-file (and a license file) to the module directory. This works fine locallly (on my machine).

When I build&deploy using Azure DevOps, and deploys my site (with the addon) to an Azure WebApp (.NET 6 running on Linux) the zip-file is NOT included. My yaml definition that does not include the zip file (but strangely includes zip files for other modules).

pool:
  vmImage: 'ubuntu-latest'

variables:
  solution: '**/*.sln'
  buildPlatform: 'Any CPU'
  buildConfiguration: 'Release'

steps:
- task: UseDotNet@2
  displayName: 'use dotnet 6.0'
  inputs:
    packageType: 'sdk'
    version: '6.0.x'

- task: DotNetCoreCLI@2
  displayName: 'dotnet restore'
  inputs:
    command: restore
    projects: '**/*.csproj'
    feedsToUse: config
    nugetConfigPath: nuget.config

- task: DotNetCoreCLI@2
  displayName: 'dotnet build'
  inputs:
    projects: '**/*.csproj'
    arguments: '--configuration $(buildConfiguration)'

- task: DotNetCoreCLI@2
  inputs:
    command: publish
    publishWebProjects: True
    arguments: '--configuration $(BuildConfiguration) --output $(Build.ArtifactStagingDirectory)'
    zipAfterPublish: True

- task: PublishBuildArtifacts@1
  inputs:
    pathtoPublish: '$(Build.ArtifactStagingDirectory)' 

In order to include the zip-file in the deploy, when I deploy the site using the addon I am currently including this in my prosject file, as mentioned in my readme file.

<ItemGroup>
    <Content Include="modules\_protected\Gulla.Episerver.SqlStudio\Gulla.Episerver.SqlStudio.zip">
		<CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
	</Content>
</ItemGroup>	

This should not be neccessary - but how can I fix it? Any suggestions?

I have read this blog post by Valdis, I have looked at the Geta notfoundhandler aand Geta sitemaps - but I cannot understand what I'm doing wrong.