Add arm64 build

Author: hansottowirtz

.github/workflows/docker-workflow.yml

@@ -33,20 +33,38 @@ jobs:
         release_exists="true"
         git show-ref --tags --quiet --verify -- "refs/tags/$sharp_version" || release_exists="false"
         echo "::set-output name=release_exists::$release_exists"
+    - name: Set up QEMU
+      uses: docker/setup-qemu-action@v2
+    - name: Set up Docker Buildx
+      uses: docker/setup-buildx-action@v2
     - name: Build
       id: docker_build
-      uses: docker/build-push-action@v2
+      uses: docker/build-push-action@v3
       with:
         context: .
         file: ./Dockerfile
+        platforms: linux/amd64,linux/arm64
         tags: amazon-linux-sharp-layer:dev
-    - name: Copy artifacts
-      run: docker run -v "${{ github.workspace }}/dist":/dist amazon-linux-sharp-layer:dev
-    - name: Upload artifacts
+    # this action should be replaced with load: true in the docker_build action, see https://github.com/docker/buildx/issues/59
+    - name: Load Docker images
+      run: |
+        docker buildx build --load --platform linux/amd64 -t amazon-linux-sharp-layer:dev-x86_64 . &&
+        docker buildx build --load --platform linux/arm64 -t amazon-linux-sharp-layer:dev-aarch64 . 
+    - name: Copy artifacts x86_64
+      run: docker run --platform linux/amd64 -v "${{ github.workspace }}/dist":/dist amazon-linux-sharp-layer:dev-x86_64
+    - name: Copy artifacts aarch64
+      run: docker run --platform linux/arm64 -v "${{ github.workspace }}/dist":/dist amazon-linux-sharp-layer:dev-aarch64
+    - name: Upload artifacts x86_64
       uses: actions/upload-artifact@v2
       with:
-        name: sharp-lambda-layer.zip
-        path: dist/sharp-layer.zip
+        name: sharp-lambda-layer.x86_64.zip
+        path: dist/sharp-layer.x86_64.zip
+        if-no-files-found: error
+    - name: Upload artifacts aarch64
+      uses: actions/upload-artifact@v2
+      with:
+        name: sharp-lambda-layer.aarch64.zip
+        path: dist/sharp-layer.aarch64.zip
         if-no-files-found: error
     - name: Create release
       if: ${{ github.event_name == 'push' && github.ref == 'refs/heads/master' && steps.vars.outputs.release_exists == 'false' }}
@@ -58,14 +76,25 @@ jobs:
         tag_name: ${{ steps.vars.outputs.sharp_version }}
         release_name: Version ${{ steps.vars.outputs.sharp_version }}
         prerelease: ${{ contains(steps.vars.outputs.sharp_version, '-') }}
-    - name: Upload release asset
+    - name: Upload release asset x86_64
+      if: ${{ github.event_name == 'push' && github.ref == 'refs/heads/master' && steps.vars.outputs.release_exists == 'false' }}
+      id: upload_release_asset_x86_64
+      uses: actions/upload-release-asset@v1
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      with:
+        upload_url: ${{ steps.create_release.outputs.upload_url }}
+        asset_path: dist/sharp-layer.x86_64.zip
+        asset_name: sharp-lambda-layer.x86_64.zip
+        asset_content_type: application/zip
+    - name: Upload release asset aarch64
       if: ${{ github.event_name == 'push' && github.ref == 'refs/heads/master' && steps.vars.outputs.release_exists == 'false' }}
-      id: upload_release_asset
+      id: upload_release_asset_aarch64
       uses: actions/upload-release-asset@v1
       env:
         GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
       with:
         upload_url: ${{ steps.create_release.outputs.upload_url }}
-        asset_path: dist/sharp-layer.zip
-        asset_name: sharp-lambda-layer.zip
+        asset_path: dist/sharp-layer.aarch64.zip
+        asset_name: sharp-lambda-layer.aarch64.zip
         asset_content_type: application/zip

Dockerfile

@@ -1,7 +1,11 @@
-FROM lambci/lambda:build-nodejs12.x
+FROM amazonlinux:2-with-sources
 
 WORKDIR /build
 
+RUN curl --silent --location https://rpm.nodesource.com/setup_16.x | bash -
+
+RUN yum -y install nodejs
+
 COPY * ./
 
 RUN npm --no-optional --no-audit --progress=false install
@@ -11,7 +15,7 @@ RUN node ./node_modules/webpack/bin/webpack.js
 RUN node -e "console.log(require('sharp'))"
 
 RUN mkdir /dist && \
-  echo "cp /build/dist/sharp-layer.zip /dist/sharp-layer.zip" > /entrypoint.sh && \
+  echo "cp /build/dist/sharp-layer.zip /dist/sharp-layer.$(uname -m).zip" > /entrypoint.sh && \
   chmod +x /entrypoint.sh
 
 ENTRYPOINT "/entrypoint.sh"

README.md

@@ -7,7 +7,7 @@ This AWS Lambda layer contains a pre-built [Sharp](https://www.npmjs.com/package
 
 ## Download
 
-A pre-built layer zip file is available on the [Releases page](https://github.com/bubblydoo/lambda-layer-sharp/releases), alongside the size of the layer.
+A pre-built layer zip file is available on the [Releases page](https://github.com/bubblydoo/lambda-layer-sharp/releases), alongside the size of the layer. Zip files for both x86_64 and arm64 are available.
 
 ## Build