| # Install dotnet SDK based on https://www.microsoft.com/net/core#debianRUN apt-get update && apt-get install -y curl libunwind8 gettextRUN curl -sSL -o dotnet.tar.gz https://go.microsoft.com/fwlink/?LinkID=809130RUN mkdir -p /opt/dotnet && tar zxf dotnet.tar.gz -C /opt/dotnetRUN ln -s /opt/dotnet/dotnet /usr/local/bin# Trigger the population of the local package cacheENV NUGET_XMLDOC_MODE skipRUN mkdir warmup ${'\\'}    && cd warmup ${'\\'}    && dotnet new ${'\\'}    && cd .. ${'\\'}    && rm -rf warmup
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