Dockerfile

# escape=`

ARG REPO=mcr.microsoft.com/dotnet/runtime

# Installer image
FROM mcr.microsoft.com/windows/servercore:ltsc2025-amd64 AS installer

# Install ASP.NET Core Runtime
RUN powershell -Command `
        $ErrorActionPreference = 'Stop'; `
        $ProgressPreference = 'SilentlyContinue'; `
        `
        $aspnetcore_version = '10.0.0-preview.3.25172.1'; `
        Invoke-WebRequest -OutFile aspnetcore.zip https://ci.dot.net/public/aspnetcore/Runtime/$aspnetcore_version/aspnetcore-runtime-$aspnetcore_version-win-x64.zip; `
        $aspnetcore_sha512 = '0bcda427a08422bda3d0331b99742fd076abee2e22c994dcd4b4a84534f3e6080dbb63a69b415b8a0a5681d34be38b80366addbf3a5446fc25faca9e2a88eb8e'; `
        if ((Get-FileHash aspnetcore.zip -Algorithm sha512).Hash -ne $aspnetcore_sha512) { `
            Write-Host 'CHECKSUM VERIFICATION FAILED!'; `
            exit 1; `
        }; `
        `
        mkdir dotnet/shared/Microsoft.AspNetCore.App; `
        tar -oxzf aspnetcore.zip -C dotnet ./shared/Microsoft.AspNetCore.App; `
        Remove-Item -Force aspnetcore.zip


# ASP.NET Core image
FROM $REPO:10.0.0-preview.3-windowsservercore-ltsc2025

# ASP.NET Core version
ENV ASPNET_VERSION=10.0.0-preview.3.25172.1

COPY --from=installer ["/dotnet/shared/Microsoft.AspNetCore.App", "/Program Files/dotnet/shared/Microsoft.AspNetCore.App"]