Quiet docker output; tag/push images in parallel

lib.Makefile

@@ -904,7 +904,7 @@ retag-build-images-with-registry-%:
 # retag-build-image-with-registry-% retags the build arch images specified by $* and VALIDARCHES with the
 # registry specified by REGISTRY.
 retag-build-image-with-registry-%: var-require-all-REGISTRY-BUILD_IMAGES
-	$(MAKE) $(addprefix retag-build-image-arch-with-registry-,$(VALIDARCHES)) BUILD_IMAGE=$(call unescapefs,$*)
+	$(MAKE) -j12 $(addprefix retag-build-image-arch-with-registry-,$(VALIDARCHES)) BUILD_IMAGE=$(call unescapefs,$*)
 
 # retag-build-image-arch-with-registry-% retags the build / arch image specified by $* and BUILD_IMAGE with the
 # registry specified by REGISTRY.
@@ -927,13 +927,13 @@ push-images-to-registry-%:
 # push-image-to-registry-% pushes the build / arch images specified by $* and VALIDARCHES to the registry
 # specified by REGISTRY.
 push-image-to-registry-%:
-	$(MAKE) $(addprefix push-image-arch-to-registry-,$(VALIDARCHES)) BUILD_IMAGE=$(call unescapefs,$*)
+	$(MAKE) -j6 $(addprefix push-image-arch-to-registry-,$(VALIDARCHES)) BUILD_IMAGE=$(call unescapefs,$*)
 
 # push-image-arch-to-registry-% pushes the build / arch image specified by $* and BUILD_IMAGE to the registry
 # specified by REGISTRY.
 push-image-arch-to-registry-%:
 # If the registry we want to push to doesn't not support manifests don't push the ARCH image.
-	$(DOCKER) push $(call filter-registry,$(REGISTRY))$(BUILD_IMAGE):$(IMAGETAG)-$*
+	$(DOCKER) push --quiet $(call filter-registry,$(REGISTRY))$(BUILD_IMAGE):$(IMAGETAG)-$*
 	$(if $(filter $*,amd64),\
 		$(DOCKER) push $(REGISTRY)/$(BUILD_IMAGE):$(IMAGETAG),\
 		$(NOECHO) $(NOOP)\