Update and rename Dockerfile.wintest2 to Dockerfile.wintest-1803

Author: alex-codefresh

Dockerfile.wintest-1803

@@ -0,0 +1,44 @@
+# escape=`
+
+# Installer image
+FROM mcr.microsoft.com/windows/servercore:1803 AS installer-env
+
+SHELL ["powershell", "-Command", "$ErrorActionPreference = 'Stop'; $ProgressPreference = 'SilentlyContinue';"]
+
+# Retrieve .NET Core SDK
+ENV DOTNET_SDK_VERSION 2.1.104
+ENV DOTNET_SDK_DOWNLOAD_URL https://dotnetcli.blob.core.windows.net/dotnet/Sdk/$DOTNET_SDK_VERSION/dotnet-sdk-$DOTNET_SDK_VERSION-win-x64.zip
+ENV DOTNET_SDK_DOWNLOAD_SHA f3a46570f220cafbdb2f7d40cddd09a8f718b62f02fbea79fdf8e48ac1871a20d2e79191b037a559b7f2bd88064e1ec70d2c68988312a7ee23d34dc757b9981b
+
+RUN Invoke-WebRequest $Env:DOTNET_SDK_DOWNLOAD_URL -OutFile dotnet.zip; `
+    if ((Get-FileHash dotnet.zip -Algorithm sha512).Hash -ne $Env:DOTNET_SDK_DOWNLOAD_SHA) { `
+        Write-Host 'CHECKSUM VERIFICATION FAILED!'; `
+        exit 1; `
+    }; `
+    `
+    Expand-Archive dotnet.zip -DestinationPath dotnet; `
+    Remove-Item -Force dotnet.zip
+
+
+# SDK image
+FROM mcr.microsoft.com/windows/nanoserver:1809
+
+COPY --from=installer-env ["dotnet", "C:\\Program Files\\dotnet"]
+
+# In order to set system PATH, ContainerAdministrator must be used
+USER ContainerAdministrator 
+RUN setx /M PATH "%PATH%;C:\Program Files\dotnet"
+USER ContainerUser
+
+# Trigger the population of the local package cache
+ENV NUGET_XMLDOC_MODE skip
+RUN mkdir warmup `
+    && cd warmup `
+    && dotnet new `
+    && cd .. `
+    && rmdir /s /q warmup
+
+# Workaround for https://github.com/Microsoft/DockerTools/issues/87. This instructs NuGet to use 4.5 behavior in which
+# all errors when attempting to restore a project are ignored and treated as warnings instead. This allows the VS
+# tooling to use -nowarn:MSB3202 to ignore issues with the .dcproj project
+ENV RestoreUseSkipNonexistentTargets false