Dockerfile

ARG REPO=mcr.microsoft.com/dotnet/aspnet
FROM $REPO:8.0.12-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=8.0.405 \
    # 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://builds.dotnet.microsoft.com/dotnet/Sdk/$DOTNET_SDK_VERSION/dotnet-sdk-$DOTNET_SDK_VERSION-linux-musl-x64.tar.gz \
    && dotnet_sha512='05078ffbeb35b7aadcf8927c0bf0aec6af5de4e616585deb55743080c0b34bb6e4becaa2e23c2e6c3856bc0826d5e54f96ab6983867c5b1af6307c62ecc01837' \
    && 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=7.4.7 \
    && wget -O PowerShell.Linux.Alpine.$powershell_version.nupkg https://powershellinfraartifacts-gkhedzdeaghdezhr.z01.azurefd.net/tool/$powershell_version/PowerShell.Linux.Alpine.$powershell_version.nupkg \
    && powershell_sha512='9c5fbb87edf9f1b3da05beeeacd69ae361cb60b0eb16079c26a5c6b477a17e4ed1deef31cdb23de43c959eae2a2731cf16188b491db2ad5d398276ca0e71faaf' \
    && echo "$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