make globalized, AOT apps no longer require nightly (#39195)

Co-authored-by: Rainer Sigwald <[email protected]>

Author: baronfel

src/Containers/Microsoft.NET.Build.Containers/Tasks/ComputeDotnetBaseImageAndTag.cs

@@ -80,7 +80,9 @@ public sealed class ComputeDotnetBaseImageAndTag : Microsoft.Build.Utilities.Tas
 
     private bool IsMuslRid => TargetRuntimeIdentifier.StartsWith("linux-musl", StringComparison.Ordinal);
     private bool IsBundledRuntime => IsSelfContained;
-    private bool NeedsNightlyImages => IsAotPublished;
+
+    // as of March 2024, the -extra images are on stable MCR, but the -aot images are still on nightly. This means AOT, invariant apps need the /nightly/ base.
+    private bool NeedsNightlyImages => IsAotPublished && UsesInvariantGlobalization;
     private bool AllowsExperimentalTagInference => String.IsNullOrEmpty(ContainerFamily);
 
     public ComputeDotnetBaseImageAndTag()

src/Tests/Microsoft.NET.Build.Containers.IntegrationTests/TargetsTests.cs

@@ -320,8 +320,8 @@ public void AOTAppsGetAOTImages(string rid, string expectedImage)
         computedBaseImageTag.Should().BeEquivalentTo(expectedImage);
     }
 
-    [InlineData("linux-musl-x64", "mcr.microsoft.com/dotnet/nightly/runtime-deps:8.0-alpine-extra")]
-    [InlineData("linux-x64", "mcr.microsoft.com/dotnet/nightly/runtime-deps:8.0-jammy-chiseled-extra")]
+    [InlineData("linux-musl-x64", "mcr.microsoft.com/dotnet/runtime-deps:8.0-alpine-extra")]
+    [InlineData("linux-x64", "mcr.microsoft.com/dotnet/runtime-deps:8.0-jammy-chiseled-extra")]
     [Theory]
     public void AOTAppsWithCulturesGetExtraImages(string rid, string expectedImage)
     {