aspnet composite dockerfile

Dockerfile

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

# Retrieve .NET Runtime
RUN aspnetcore_version=8.0.0-preview.3.23170.14 \
    && curl -fSL --output dotnet.tar.gz https://dotnetbuilds.azureedge.net/public/aspnetcore/Runtime/$aspnetcore_version/aspnetcore-runtime-composite-$aspnetcore_version-linux-x64.tar.gz \
    && dotnet_sha512='06a24a0992645757e471d6bd6244328e9f0a352ad198697c97136c997f5bfcc6b947f2e896dc3bd69590781a1befc0ec5531859b4e25456b97a24320bcacd42a' \
    && 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 mcr.microsoft.com/dotnet/nightly/runtime-deps:8.0.0-preview.3-bookworm-slim-amd64 AS aspnet-composite

# .NET Runtime version
ENV DOTNET_VERSION=8.0.0-preview.3.23170.2
# ASP.NET Core version
ENV ASPNET_VERSION=8.0.0-preview.3.23170.14

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

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


FROM aspnet-composite

ENV \
    # Do not generate certificate
    DOTNET_GENERATE_ASPNET_CERTIFICATE=false \
    # Do not show first run text
    DOTNET_NOLOGO=true \
    # SDK version
    DOTNET_SDK_VERSION=8.0.100-preview.3.23173.11 \
    # Enable correct mode for dotnet watch (only mode supported in a container)
    DOTNET_USE_POLLING_FILE_WATCHER=true \
    # Skip extraction of XML docs - generally not useful within an image/container - helps performance
    NUGET_XMLDOC_MODE=skip \
    # PowerShell telemetry for docker image usage
    POWERSHELL_DISTRIBUTION_CHANNEL=PSDocker-DotnetSDK-Debian-12

RUN apt-get update \
    && apt-get install -y --no-install-recommends \
        curl \
        git \
        wget \
    && rm -rf /var/lib/apt/lists/*

# Install .NET SDK
RUN curl -fSL --output dotnet.tar.gz https://dotnetbuilds.azureedge.net/public/Sdk/$DOTNET_SDK_VERSION/dotnet-sdk-$DOTNET_SDK_VERSION-linux-x64.tar.gz \
    && dotnet_sha512='cc3bb3b9f83554d83b6cad58ad1b15afae14bed6866774777f77f4d7f5e2776c5adaac5c694af0f7223e91fe13f53d72153b0d07500c9335d9f6d0c4147d0745' \
    && echo "$dotnet_sha512  dotnet.tar.gz" | sha512sum -c - \
    && mkdir -p /usr/share/dotnet \
    && tar -oxzf dotnet.tar.gz -C /usr/share/dotnet ./packs ./sdk ./sdk-manifests ./templates ./LICENSE.txt ./ThirdPartyNotices.txt \
    && rm dotnet.tar.gz \
    # Trigger first run experience by running arbitrary cmd
    && dotnet help