Dockerfile

# escape=`

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

# Installer image
FROM mcr.microsoft.com/windows/servercore:1809-amd64 AS installer

# Install ASP.NET Core Runtime
RUN powershell -Command `
        $ErrorActionPreference = 'Stop'; `
        $ProgressPreference = 'SilentlyContinue'; `
        `
        $aspnetcore_version = '6.0.35'; `
        Invoke-WebRequest -OutFile aspnetcore.zip https://dotnetcli.azureedge.net/dotnet/aspnetcore/Runtime/$aspnetcore_version/aspnetcore-runtime-$aspnetcore_version-win-x64.zip; `
        $aspnetcore_sha512 = '83678ac457a8b604c6b622478860f926ba05649847d2a2fdab65ce8b04a7939857372788e77d23514bb967c8bd058b50bb0e1981772ace8e7efbd829bd94314e'; `
        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:6.0.35-nanoserver-1809

# ASP.NET Core version
ENV ASPNET_VERSION=6.0.35

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