Github Actions Example of Mult-Arch Docker Image Build for ESP32 Firmware Flashing

create_flashing_image.yml

name: create-programming-image
on:
  workflow_dispatch:
  release:
    types: [published]
jobs:
  build_firmware_assets:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repository
        uses: actions/checkout@v2
        with:
          submodules: true

      - name: Build binary assets
        uses: docker://espressif/idf:v4.3.1
        with:
          args: idf.py build

      - name: Create asset artifacts
        uses: actions/upload-artifact@v2
        with:
          name: release-binaries
          path: |
            build/bootloader/bootloader.bin
            build/partition_table/partition-table.bin
            build/ota_data_initial.bin
            build/statfeedr_firmware.bin
            build/storage.bin
            version.txt
          if-no-files-found: error
          retention-days: 1

  build_and_push_docker_images:
    needs: build_firmware_assets
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v2

      - name: Get firmware binary assets
        uses: actions/download-artifact@v2
        with:
          name: release-binaries
          path: docker/binaries

      - name: Configure AWS credentials
        uses: aws-actions/configure-aws-credentials@v1
        with:
          aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID }}
          aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
          aws-region: us-west-2

      - name: Login to Amazon ECR
        id: login-ecr
        uses: aws-actions/amazon-ecr-login@v1

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v1

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v1

      - name: Build, tag, and push image to Amazon ECR
        id: build-image
        env:
          ECR_REGISTRY: ${{ steps.login-ecr.outputs.registry }}
          ECR_REPOSITORY: statfeedr_device_programming
          IMAGE_TAG: ${{ github.event.release.tag_name || 'latest' }}
        run: |
          cd docker
          docker buildx build --push --platform=linux/arm/v7,linux/amd64 -t $ECR_REGISTRY/$ECR_REPOSITORY:$IMAGE_TAG .
          echo "::set-output name=image::$ECR_REGISTRY/$ECR_REPOSITORY:$IMAGE_TAG"

Dockerfile

FROM debian:buster-slim

RUN apt update \
    && apt install -y build-essential gcc make libftdi-dev git\
    && git clone https://github.com/makercrew/ftx-prog.git /ftxprog \
    && cd /ftxprog \
    && make

FROM debian:buster-slim
COPY --from=0 /ftxprog/ftx_prog /ftxprog/
RUN apt update \
    && apt install -y python3 python3-pip libftdi-dev \
    && pip3 install esptool

ADD *.sh tools/
ADD binaries release/
WORKDIR /tools