Update dotnet build image

Author: Petya Koleva

.github/workflows/dotnet.yml

@@ -23,7 +23,7 @@ env:
 
 jobs:
   build-dotnet:
-    runs-on: windows-2019
+    runs-on: windows-2025
     steps:
       - uses: actions/checkout@v4
       - name: Setup MSBuild
@@ -40,7 +40,7 @@ jobs:
 
   build-docker:
     needs: build-dotnet
-    runs-on: windows-2019
+    runs-on: windows-2025
     steps:
       - uses: actions/checkout@v4
       - uses: docker/login-action@v3
@@ -63,7 +63,7 @@ jobs:
 
   run-integration-tests-with-proxy:
     needs: build-docker
-    runs-on: windows-2019
+    runs-on: windows-2025
     steps:
       - name: Pull images
         run: |
@@ -89,7 +89,7 @@ jobs:
         run: |
           export CID=$(cat $CID_FILE)
           export ADDR=$(docker inspect -f '{{range.NetworkSettings.Networks}}{{.IPAddress}}{{end}}' $CID)
-          echo "::set-output name=address::$ADDR"
+          echo "address=$ADDR" >> $GITHUB_OUTPUT
           rm -rf $CID_FILE
       - name: Start the sample
         shell: bash
@@ -113,7 +113,7 @@ jobs:
         run: |
           export CID=$(cat $CID_FILE)
           export ADDR=$(docker inspect -f '{{range.NetworkSettings.Networks}}{{.IPAddress}}{{end}}' $CID)
-          echo "::set-output name=address::$ADDR"
+          echo "address=$ADDR" >> $GITHUB_OUTPUT
       - name: Run integration tests
         id: tests
         shell: powershell
@@ -130,7 +130,7 @@ jobs:
 
   run-integration-tests:
     needs: build-docker
-    runs-on: windows-2019
+    runs-on: windows-2025
     steps:
       - name: Pull images
         run: |
@@ -155,7 +155,7 @@ jobs:
         run: |
           export CID=$(cat $CID_FILE)
           export ADDR=$(docker inspect -f '{{range.NetworkSettings.Networks}}{{.IPAddress}}{{end}}' $CID)
-          echo "::set-output name=address::$ADDR"
+          echo "address=$ADDR" >> $GITHUB_OUTPUT
       - name: Run integration tests
         id: tests
         shell: powershell

samples/dotnet/Dockerfile

@@ -1,22 +1,63 @@
-FROM mcr.microsoft.com/dotnet/framework/sdk:4.8 AS build
+# FROM mcr.microsoft.com/dotnet/framework/sdk:4.8 AS build
+# WORKDIR /app
+
+# ENV HOST="localhost"
+# ENV PORT="8000"
+# EXPOSE ${PORT}
+
+# # copy csproj and restore as distinct layers
+# COPY *.sln ./
+# COPY *.csproj ./
+# COPY *.config ./
+# RUN nuget restore
+
+# # copy everything else and build app
+# COPY . .
+# WORKDIR /app
+# RUN msbuild /p:Configuration=Release -r:False
+
+# FROM mcr.microsoft.com/dotnet/framework/aspnet:4.8 AS runtime
+# RUN New-Item -Path 'C:\app' -Type Directory; New-Website -Name 'app' -PhysicalPath 'C:\app' -Port 8000 -Force
+
+# COPY --from=build /app/. /app
+#########################################################################
+# Stage 1: Build the application
+# Use a specific Windows Server 2022-compatible SDK image
+FROM mcr.microsoft.com/dotnet/framework/sdk:4.8-windowsservercore-ltsc2022 AS build
+
+# Set the working directory
 WORKDIR /app
 
+
 ENV HOST="localhost"
 ENV PORT="8000"
-EXPOSE ${PORT} 
+EXPOSE ${PORT}
 
 # copy csproj and restore as distinct layers
-COPY *.sln ./
-COPY *.csproj ./
-COPY *.config ./
-RUN nuget restore
+# COPY *.sln ./
+# COPY *.csproj ./
+# COPY *.config ./
 
-# copy everything else and build app
+# Copy the project files
 COPY . .
-WORKDIR /app
+
+# Restore NuGet packages
+RUN nuget restore
+
+# Build the application and publish it
+# RUN msbuild /p:Configuration=Release /p:DeployOnBuild=true /p:PublishProfile=FileSystem /p:publishUrl=c:\publish
 RUN msbuild /p:Configuration=Release -r:False
 
-FROM mcr.microsoft.com/dotnet/framework/aspnet:4.8 AS runtime
-RUN New-Item -Path 'C:\app' -Type Directory; New-Website -Name 'app' -PhysicalPath 'C:\app' -Port 8000 -Force
+# Stage 2: Create the runtime image
+# Use a compatible Windows Server 2022 ASP.NET runtime image
+FROM mcr.microsoft.com/dotnet/framework/aspnet:4.8-windowsservercore-ltsc2022
+# RUN New-Item -Path 'C:\app' -Type Directory; New-Website -Name 'app' -PhysicalPath 'C:\app' -Port 8000 -Force
+RUN powershell -Command "New-Item -Path 'C:\app' -Type Directory; New-Website -Name 'app' -PhysicalPath 'C:\app' -Port 8000 -Force"
+
+# # Set the working directory for the final image
+# WORKDIR /inetpub/wwwroot
+
+# # Copy the published application from the build stage
+# COPY --from=build /publish/ .
 
 COPY --from=build /app/. /app