| 12345678910111213141516171819202122232425 | # Install dotnet SDKENV DOTNET_SDK_VERSION 2.1.500RUN curl -sSL -o dotnet.tar.gz https://dotnetcli.blob.core.windows.net/dotnet/Sdk/$DOTNET_SDK_VERSION/dotnet-sdk-$DOTNET_SDK_VERSION-linux-x64.tar.gz ${'\\'}    && mkdir -p /usr/share/dotnet ${'\\'}    && tar -zxf dotnet.tar.gz -C /usr/share/dotnet ${'\\'}    && rm dotnet.tar.gz ${'\\'}    && ln -s /usr/share/dotnet/dotnet /usr/bin/dotnet# Install .NET Core 1.1.10 runtime (required to run netcoreapp1.1)RUN curl -sSL -o dotnet_old.tar.gz https://dotnetcli.blob.core.windows.net/dotnet/Runtime/1.1.10/dotnet-debian.9-x64.1.1.10.tar.gz ${'\\'}    && mkdir -p dotnet_old ${'\\'}    && tar zxf dotnet_old.tar.gz -C dotnet_old ${'\\'}    && cp -r dotnet_old/shared/Microsoft.NETCore.App/1.1.10/ /usr/share/dotnet/shared/Microsoft.NETCore.App/ ${'\\'}    && rm -rf dotnet_old/ dotnet_old.tar.gzRUN apt-get update && apt-get install -y libunwind8 && apt-get clean# Trigger the population of the local package cacheENV NUGET_XMLDOC_MODE skipRUN mkdir warmup ${'\\'}    && cd warmup ${'\\'}    && dotnet new ${'\\'}    && cd .. ${'\\'}    && rm -rf warmup
 |