makefile: added "podman-build" target

Makefile

@@ -26,10 +26,15 @@ DOCKER_TAG_ARCH_SUFFIX_x86_64 := amd64
 DOCKER_TAG_ARCH_SUFFIX = ${DOCKER_TAG_ARCH_SUFFIX_${ARCH}}
 DOCKER_TAG = ${DOCKER_TAG_VERSION}-${DOCKER_TAG_ARCH_SUFFIX}
 
-.PHONY: docker-build docker-push
+.PHONY: docker-build podman-build docker-push
 
 docker-build:
-	sudo docker build -t "${DOCKER_IMAGE_NAME}:${DOCKER_TAG}" .
+	sudo docker build --tag="${DOCKER_IMAGE_NAME}:${DOCKER_TAG}" .
+
+podman-build:
+	# --format=oci (default) not fully supported by hub.docker.com
+	# https://github.com/docker/hub-feedback/issues/1871#issuecomment-748924149
+	podman build --format=docker --tag="${DOCKER_IMAGE_NAME}:${DOCKER_TAG}" .
 
 docker-push: docker-build
 	sudo docker push "${DOCKER_IMAGE_NAME}:${DOCKER_TAG}"