Dockerfile

ARG REPO=mcr.microsoft.com/dotnet/aspnet
FROM $REPO:8.0.10-alpine3.20-amd64

ENV \
    # Do not generate certificate
    DOTNET_GENERATE_ASPNET_CERTIFICATE=false \
    # Do not show first run text
    DOTNET_NOLOGO=true \
    # SDK version
    DOTNET_SDK_VERSION=8.0.403 \
    # Disable the invariant mode (set in base image)
    DOTNET_SYSTEM_GLOBALIZATION_INVARIANT=false \
    # 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-Alpine-3.20

RUN apk add --upgrade --no-cache \
        curl \
        git \
        icu-data-full \
        icu-libs \
        tzdata

# Install .NET SDK
RUN wget -O dotnet.tar.gz https://dotnetcli.azureedge.net/dotnet/Sdk/$DOTNET_SDK_VERSION/dotnet-sdk-$DOTNET_SDK_VERSION-linux-musl-x64.tar.gz \
    && dotnet_sha512='920373320b0769546180f5099fdba334383b45103120fc5adf876583986ec3a5714e82fcd6475479df415f332dce4d0a989c05dae1f4d1a50d0265b9121f8d2f' \
    && 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

# Install PowerShell global tool
RUN powershell_version=7.4.5 \
    && wget -O PowerShell.Linux.Alpine.$powershell_version.nupkg https://powershellinfraartifacts-gkhedzdeaghdezhr.z01.azurefd.net/tool/$powershell_version/PowerShell.Linux.Alpine.$powershell_version.nupkg \
    && powershell_sha512='0cf6de6b03c3c1248a0096020702a7d0f07af1b1ac35e626bb9bb0774bc4ea3fe92db2a4c4b9e449f765d9f1a5a752108978c5a67880d882fdd81620a0bef32b' \
    && echo "$powershell_sha512  PowerShell.Linux.Alpine.$powershell_version.nupkg" | sha512sum -c - \
    && mkdir -p /usr/share/powershell \
    && dotnet tool install --add-source / --tool-path /usr/share/powershell --version $powershell_version PowerShell.Linux.Alpine \
    && dotnet nuget locals all --clear \
    && rm PowerShell.Linux.Alpine.$powershell_version.nupkg \
    && ln -s /usr/share/powershell/pwsh /usr/bin/pwsh \
    && chmod 755 /usr/share/powershell/pwsh \
    # To reduce image size, remove the copy nupkg that nuget keeps.
    && find /usr/share/powershell -print | grep -i '.*[.]nupkg$' | xargs rm \
    # Add ncurses-terminfo-base to resolve psreadline dependency
    && apk add --no-cache ncurses-terminfo-base