add arm64 Docker build

closes #2

.github/workflows/ci.yml

@@ -126,7 +126,7 @@ jobs:
       - name: Set up QEMU
         uses: docker/setup-qemu-action@v3
         with:
-          platforms: linux/arm64,linux/amd64
+          platforms: linux/arm64,linux/amd64,linux/arm64/v8
 
       - name: Set up Docker Buildx
         id: buildx
@@ -193,6 +193,35 @@ jobs:
           build-args: |
             BIN_VERSION=${{ needs.meta.outputs.bin_version }}
 
+      - name: "Meta: arm64"
+        id: docker_meta_arm64
+        uses: docker/metadata-action@v5
+        with:
+          images: |
+            ${{ needs.meta.outputs.dockerhub_owner }}/${{ needs.meta.outputs.project_name }}
+          tags: |
+            type=ref,event=branch
+            type=ref,event=pr
+            type=semver,pattern={{version}}
+            type=semver,pattern={{major}}.{{minor}}
+            type=semver,pattern={{major}}
+          flavor: |
+            latest=false
+            suffix=-arm64
+
+      - name: "Build & Push: arm64"
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          file: ./Dockerfile-arm64
+          platforms: arm64v8
+          builder: ${{ steps.buildx.outputs.name }}
+          push: ${{ needs.meta.outputs.is_pull_request != 'true' }}
+          tags: ${{ steps.docker_meta_arm64.outputs.tags }}
+          labels: ${{ steps.docker_meta_arm64.outputs.labels }}
+          build-args: |
+            BIN_VERSION=${{ needs.meta.outputs.bin_version }}
+
       - name: Update Docker Hub description
         if: needs.meta.outputs.is_release == 'true'
         uses: peter-evans/dockerhub-description@v3

Dockerfile-arm64

@@ -0,0 +1,31 @@
+# for arm64/aarch64
+# see: https://github.com/ultralytics/ultralytics/blob/main/docker/Dockerfile-arm64
+
+FROM arm64v8/python:3-bookworm
+ARG BIN_VERSION=<unknown>
+
+RUN apt-get -y update \
+    && apt-get install --no-install-recommends -y \
+        curl git zip libpython3-dev python3-opencv libgl1 libglib2.0-0 gnupg g++ libusb-1.0-0 \
+    && rm -rf /var/lib/apt/lists/*
+
+RUN mkdir /app
+COPY ./*.py ./requirements.txt /app/
+RUN pip install --no-cache-dir -r /app/requirements.txt
+
+WORKDIR /app
+RUN curl -f -L -O https://github.com/ultralytics/assets/releases/download/v8.2.0/yolov8n.pt
+ENV DM_DOCKER_ALSO_BIND="*:2856"
+HEALTHCHECK CMD curl -s --max-time 2 --fail http://localhost:2856/health || exit 1
+ENTRYPOINT ["python3", "main.py"]
+
+LABEL license="GPL-3.0"
+LABEL maintainer="Chris Dzombak <https://www.dzombak.com>"
+LABEL org.opencontainers.image.authors="Chris Dzombak <https://www.dzombak.com>"
+LABEL org.opencontainers.image.url="https://github.com/cdzombak/driveway-monitor"
+LABEL org.opencontainers.image.documentation="https://github.com/cdzombak/driveway-monitor/blob/main/README.md"
+LABEL org.opencontainers.image.source="https://github.com/cdzombak/driveway-monitor.git"
+LABEL org.opencontainers.image.version="${BIN_VERSION}"
+LABEL org.opencontainers.image.licenses="GPL-3.0"
+LABEL org.opencontainers.image.title="driveway-monitor"
+LABEL org.opencontainers.image.description="Receive customizable, AI-powered notifications when someone arrives in your driveway."