Github Actions with aarch64 building support

.github/workflows/build.yml

@@ -0,0 +1,39 @@
+name: Build
+
+on:
+  push:
+    branches: [ '*' ]
+  pull_request:
+    branches: [ '*' ]
+
+  workflow_dispatch:
+  schedule:
+    - cron: '45 2 * * 0'
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        include:
+          - image: alpine
+          - image: centos
+          - image: debian
+          - image: fedora
+          - image: ubuntu
+          - image: archlinux
+
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          fetch-depth: 50
+      - uses: docker/setup-qemu-action@v1
+      - uses: docker/setup-buildx-action@v1
+      - run: ./ci-helpers/build.sh
+        env:
+          IMAGE: ${{ matrix.image }}
+          SOURCE_IMAGE: ${{ matrix.source_image }}
+          SKIP_REMOVE: false
+          DOCKER_PUSH: "${{ github.ref == 'refs/heads/master' && '--push' || '' }}"
+          DOCKER_USER: ${{ secrets.DOCKER_USER }}
+          DOCKER_PASS: ${{ secrets.DOCKER_PASS }}

travis-helpers/build-image.sh → ci-helpers/build-image.sh

@@ -17,8 +17,9 @@ elif [[ $image == alpine ]]; then
     EXTRA_CMD="RUN apk --update add bash tar && rm -rf /var/cache/apk/*"
 fi
 
-dockerfile=$(mktemp)
-cat << EOF > $dockerfile
+workdir=$(mktemp -d)
+cp -r . $workdir
+cat << EOF > $workdir/Dockerfile
 FROM $source_image:$tag
 LABEL maintainer "Yifan Gao <[email protected]>"
 ENV ASSETS_DIR="/opt/smartentry/HEAD"
@@ -27,11 +28,15 @@ COPY smartentry.sh /sbin/smartentry.sh
 ENTRYPOINT ["/sbin/smartentry.sh"]
 CMD ["run"]
 EOF
-docker build -f $dockerfile -t smartentry/$image:$tag .
-docker tag smartentry/$image:$tag smartentry/$image:$tag$version
-[[ $SKIP_PUSH == true ]] || docker push smartentry/$image:$tag
-[[ $SKIP_PUSH == true ]] || docker push smartentry/$image:$tag$version
-[[ $SKIP_REMOVE == true ]] || docker rmi \
-    $source_image:$tag \
-    smartentry/$image:$tag \
-    smartentry/$image:$tag$version
+cd $workdir
+docker buildx build \
+    -t smartentry/$image:$tag \
+    --platform linux/amd64,linux/arm64 \
+    $DOCKER_PUSH .
+
+[[ -n $version ]] && docker buildx build \
+    -t smartentry/$image:$tag$version \
+    --platform linux/amd64,linux/arm64 \
+    $DOCKER_PUSH .
+
+[[ $SKIP_REMOVE == true ]] || docker buildx prune -a -f