Create docker image for armv7 / raspberry pi3

Author: brianegge

.github/workflows/docker-release.yml

@@ -38,7 +38,7 @@ jobs:
           IMAGE_VERSION=${VERSION:1}
           echo "IMAGE_VERSION: ${IMAGE_VERSION}"
 
-          PLATFORMS="linux/amd64,linux/ppc64le,linux/arm64"
+          PLATFORMS="linux/amd64,linux/ppc64le,linux/arm64,linux/arm/v7"
 
           echo "Building and pushing version ${IMAGE_VERSION} of image ${IMAGE_NAME}"
           echo '${{ secrets.DOCKER_PASSWORD }}' | docker login -u '${{ secrets.DOCKER_USERNAME }}' --password-stdin