# because of dotnet, we always build on amd64, and target platforms in cli # dotnet doesn't support QEMU for building or running. # (errors common in arm/v7 32bit) https://github.com/dotnet/dotnet-docker/issues/1537 # https://hub.docker.com/_/microsoft-dotnet # hadolint ignore=DL3029 # to build for a different platform than your host, use --platform= # for example, if you were on Intel (amd64) and wanted to build for ARM, you would use: # docker buildx build --platform "linux/arm64/v8" . FROM --platform=${BUILDPLATFORM} mcr.microsoft.com/dotnet/sdk:7.0 as build ARG TARGETPLATFORM ARG BUILDPLATFORM RUN echo "I am running on $BUILDPLATFORM, building for $TARGETPLATFORM" WORKDIR /source COPY *.csproj . RUN case ${TARGETPLATFORM} in \ "linux/amd64") ARCH=x64 ;; \ "linux/arm64") ARCH=arm64 ;; \ "linux/arm64/v8") ARCH=arm64 ;; \ "linux/arm/v7") ARCH=arm ;; \ esac \ && dotnet restore -r linux-${ARCH} COPY . . RUN case ${TARGETPLATFORM} in \ "linux/amd64") ARCH=x64 ;; \ "linux/arm64") ARCH=arm64 ;; \ "linux/arm64/v8") ARCH=arm64 ;; \ "linux/arm/v7") ARCH=arm ;; \ esac \ && dotnet publish -c release -o /app -r linux-${ARCH} --self-contained false --no-restore # app image FROM mcr.microsoft.com/dotnet/runtime:7.0 WORKDIR /app COPY --from=build /app . ENTRYPOINT ["dotnet", "Worker.dll"]