setup qemu and arm build

Author: jredrejo

.github/workflows/build_zip.yml

@@ -44,6 +44,13 @@ jobs:
       with:
         repository: learningequality/pi-gen
         ref: ${{ inputs.ref }}
+    - name: Set up QEMU
+      uses: docker/setup-qemu-action@v2
+    - name: Download the debfile from URL and install
+      if: ${{ inputs.deb-url }}
+      run: |
+        sudo apt-get update
+        sudo apt-get install -y qemu-user-static
     - name: Download the debfile from URL and install
       if: ${{ inputs.deb-url }}
       run: make get-deb deb=${{ inputs.deb-url }}

Dockerfile

@@ -1,7 +1,5 @@
-
-ARG BASE_IMAGE=debian:bullseye
-FROM ${BASE_IMAGE}
-ENV DEBIAN_FRONTEND noninteractive
+FROM i386/debian:bullseye
+ENV DEBIAN_FRONTEND=noninteractive
 
 RUN apt-get -y update && \
     apt-get -y install --no-install-recommends \
@@ -11,6 +9,8 @@ RUN apt-get -y update && \
         binfmt-support ca-certificates fdisk gpg pigz arch-test \
     && rm -rf /var/lib/apt/lists/*
 
+COPY --from=multiarch/qemu-user-static:latest /usr/bin/qemu-arm-static /usr/bin/
+
 COPY . /pi-gen/
 
 VOLUME [ "/pi-gen/work", "/pi-gen/deploy"]