Dockerfile

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

# Installer image
FROM amd64/buildpack-deps:focal-curl AS installer

# Retrieve .NET Runtime
RUN dotnet_version=6.0.35 \
    && curl -fSL --output dotnet.tar.gz https://dotnetcli.azureedge.net/dotnet/Runtime/$dotnet_version/dotnet-runtime-$dotnet_version-linux-x64.tar.gz \
    && dotnet_sha512='d8d10d600fb664336949576f8ec0534dbffd573f754b9e741f20812221fafcac5f509a7e1ab44e9e63fc31a7b5dbcb19e4ec1930ffd29312212dc7454977090e' \
    && echo "$dotnet_sha512  dotnet.tar.gz" | sha512sum -c - \
    && mkdir -p /dotnet \
    && tar -oxzf dotnet.tar.gz -C /dotnet \
    && rm dotnet.tar.gz


# .NET runtime image
FROM $REPO:6.0.35-focal-amd64

# .NET Runtime version
ENV DOTNET_VERSION=6.0.35

COPY --from=installer ["/dotnet", "/usr/share/dotnet"]

RUN ln -s /usr/share/dotnet/dotnet /usr/bin/dotnet