multi arch

.github/workflows/image-build-push.yml

@@ -33,3 +33,6 @@ jobs:
           platforms: linux/amd64,linux/arm64
           file: ./Service.Dockerfile
           tags: ${{ secrets.DOCKERHUB_USERNAME }}/service:latest
+          # build-args: |
+          #   BUILD_IMAGE_TAG=8.0-jammy-arm64v8
+          #   RUN_IMAGE_TAG=8.0-alpine-arm64v8

Service.Dockerfile

@@ -6,9 +6,14 @@ ARG RUN_IMAGE_TAG="7.0-alpine"
 # build and publish
 #########################################################################
 
-FROM mcr.microsoft.com/dotnet/sdk:$BUILD_IMAGE_TAG AS build
+FROM --platform=$BUILDPLATFORM mcr.microsoft.com/dotnet/sdk:$BUILD_IMAGE_TAG AS build
 ARG BUILD_CONFIGURATION=Release
+
 ARG TARGETARCH
+ARG TARGETPLATFORM
+ARG BUILDPLATFORM
+RUN echo "I am running on $BUILDPLATFORM, building for $TARGETPLATFORM" > /log
+
 WORKDIR /src
 COPY ["service/Service/Service.csproj", "service/Service/"]
 RUN dotnet restore "./service/Service/./Service.csproj"
@@ -27,7 +32,7 @@ RUN dotnet publish "./Service.csproj" -c $BUILD_CONFIGURATION -o /app/publish /p
 # run
 #########################################################################
 
-FROM mcr.microsoft.com/dotnet/aspnet:$RUN_IMAGE_TAG AS base
+FROM --platform=$BUILDPLATFORM mcr.microsoft.com/dotnet/aspnet:$RUN_IMAGE_TAG AS base
 # Non-root user that will run the service
 ARG USER=km
 RUN \