dotnet.Dockerfile

# Build the runtime from source
ARG HOST_VERSION=4.25.2
FROM mcr.microsoft.com/dotnet/sdk:6.0-alpine AS runtime-image
ARG HOST_VERSION

ENV PublishWithAspNetCoreTargetManifest=false

RUN apk update && apk upgrade && \
    apk --no-cache add git gnupg wget unzip grpc grpc-plugins protobuf protobuf-dev protoc

ENV GRPC_PROTOC_PLUGIN=/usr/bin/grpc_csharp_plugin
ENV PROTOBUF_PROTOC=/usr/bin/protoc

RUN BUILD_NUMBER=$(echo ${HOST_VERSION} | cut -d'.' -f 3) && \
    git clone --branch v${HOST_VERSION} https://github.com/Azure/azure-functions-host /src/azure-functions-host && \
    cd /src/azure-functions-host && \
    HOST_COMMIT=$(git rev-list -1 HEAD) && \
    dotnet publish -v q /p:BuildNumber=$BUILD_NUMBER /p:CommitHash=$HOST_COMMIT src/WebJobs.Script.WebHost/WebJobs.Script.WebHost.csproj -c Release --output /azure-functions-host --runtime linux-musl-x64 && \
    mv /azure-functions-host/workers /workers && mkdir /azure-functions-host/workers && \
    rm -rf /root/.local /root/.nuget /src

RUN EXTENSION_BUNDLE_VERSION_V2=2.27.0 && \
    EXTENSION_BUNDLE_FILENAME_V2=Microsoft.Azure.Functions.ExtensionBundle.${EXTENSION_BUNDLE_VERSION_V2}_linux-x64.zip && \
    wget https://functionscdn.azureedge.net/public/ExtensionBundles/Microsoft.Azure.Functions.ExtensionBundle/$EXTENSION_BUNDLE_VERSION_V2/$EXTENSION_BUNDLE_FILENAME_V2 && \
    mkdir -p /FuncExtensionBundles/Microsoft.Azure.Functions.ExtensionBundle/$EXTENSION_BUNDLE_VERSION_V2 && \
    unzip /$EXTENSION_BUNDLE_FILENAME_V2 -d /FuncExtensionBundles/Microsoft.Azure.Functions.ExtensionBundle/$EXTENSION_BUNDLE_VERSION_V2 && \
    rm -f /$EXTENSION_BUNDLE_FILENAME_V2 &&\
    EXTENSION_BUNDLE_VERSION_V3=3.26.0 && \
    EXTENSION_BUNDLE_FILENAME_V3=Microsoft.Azure.Functions.ExtensionBundle.${EXTENSION_BUNDLE_VERSION_V3}_linux-x64.zip && \
    wget https://functionscdn.azureedge.net/public/ExtensionBundles/Microsoft.Azure.Functions.ExtensionBundle/$EXTENSION_BUNDLE_VERSION_V3/$EXTENSION_BUNDLE_FILENAME_V3 && \
    mkdir -p /FuncExtensionBundles/Microsoft.Azure.Functions.ExtensionBundle/$EXTENSION_BUNDLE_VERSION_V3 && \
    unzip /$EXTENSION_BUNDLE_FILENAME_V3 -d /FuncExtensionBundles/Microsoft.Azure.Functions.ExtensionBundle/$EXTENSION_BUNDLE_VERSION_V3 && \
    rm -f /$EXTENSION_BUNDLE_FILENAME_V3 &&\
    EXTENSION_BUNDLE_VERSION_V4=4.8.0 && \
    EXTENSION_BUNDLE_FILENAME_V4=Microsoft.Azure.Functions.ExtensionBundle.${EXTENSION_BUNDLE_VERSION_V4}_linux-x64.zip && \
    wget https://functionscdn.azureedge.net/public/ExtensionBundles/Microsoft.Azure.Functions.ExtensionBundle/$EXTENSION_BUNDLE_VERSION_V4/$EXTENSION_BUNDLE_FILENAME_V4 && \
    mkdir -p /FuncExtensionBundles/Microsoft.Azure.Functions.ExtensionBundle/$EXTENSION_BUNDLE_VERSION_V4 && \
    unzip /$EXTENSION_BUNDLE_FILENAME_V4 -d /FuncExtensionBundles/Microsoft.Azure.Functions.ExtensionBundle/$EXTENSION_BUNDLE_VERSION_V4 && \
    rm -f /$EXTENSION_BUNDLE_FILENAME_V4 &&\
    find /FuncExtensionBundles/ -type f -exec chmod 644 {} \;

FROM mcr.microsoft.com/dotnet/runtime-deps:6.0-alpine
ARG HOST_VERSION

ENV AzureWebJobsScriptRoot=/home/site/wwwroot \
    HOME=/home \
    FUNCTIONS_WORKER_RUNTIME=dotnet \
    DOTNET_USE_POLLING_FILE_WATCHER=true \
    HOST_VERSION=${HOST_VERSION} \
    ASPNETCORE_CONTENTROOT=/azure-functions-host

# Fix from https://github.com/GoogleCloudPlatform/google-cloud-dotnet-powerpack/issues/22#issuecomment-729895157
RUN apt-get update && \
    apt-get install -y libc-dev

COPY --from=runtime-image [ "/azure-functions-host", "/azure-functions-host" ]
COPY --from=runtime-image [ "/FuncExtensionBundles", "/FuncExtensionBundles" ]

CMD [ "/azure-functions-host/Microsoft.Azure.WebJobs.Script.WebHost" ]