More build experiments

.github/actions/combine-build/action.yml

@@ -54,6 +54,9 @@ runs:
         username: ${{ inputs.aws_access_key_id }}
         password: ${{ inputs.aws_secret_access_key }}
 
+    - name: Set up QEMU
+      uses: docker/setup-qemu-action@v3
+
     - name: Set up Docker Buildx
       uses: docker/setup-buildx-action@v2
 

.github/workflows/database.yml

@@ -33,6 +33,8 @@ jobs:
         uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
         with:
           fetch-depth: 0
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
       - name: Build database image
         run: |
           deploy/scripts/build.py --components database --arch ${{ matrix.arch }}

.github/workflows/frontend.yml

@@ -136,6 +136,8 @@ jobs:
         uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
         with:
           fetch-depth: 0
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
       - name: Build frontend
         run: |
           deploy/scripts/build.py --components frontend --arch ${{ matrix.arch }}

.github/workflows/maintenance.yml

@@ -39,6 +39,8 @@ jobs:
         uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
         with:
           fetch-depth: 0
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
       - name: Build maintenance image
         run: |
           deploy/scripts/build.py --components maintenance --arch ${{ matrix.arch }}

Backend/Dockerfile

@@ -7,7 +7,7 @@
 ############################################################
 
 # Docker multi-stage build
-FROM --platform=$BUILDPLATFORM mcr.microsoft.com/dotnet/sdk:8.0.402-jammy AS builder
+FROM mcr.microsoft.com/dotnet/sdk:8.0.402-jammy AS builder
 WORKDIR /app
 
 # Copy csproj and restore (fetch dependencies) as distinct layers.
@@ -19,7 +19,7 @@ COPY . ./
 RUN dotnet publish -c Release -o build
 
 # Build runtime image.
-FROM --platform=$BUILDPLATFORM mcr.microsoft.com/dotnet/aspnet:8.0.8-jammy
+FROM mcr.microsoft.com/dotnet/aspnet:8.0.8-jammy
 
 ENV ASPNETCORE_URLS=http://+:5000
 ENV COMBINE_IS_IN_CONTAINER=1

database/Dockerfile

@@ -5,7 +5,7 @@
 #   - Intel/AMD 64-bit
 #   - ARM 64-bit
 ############################################################
-FROM --platform=$BUILDPLATFORM mongo:7.0.14-jammy
+FROM mongo:7.0.14-jammy
 
 WORKDIR /