diff --git a/meta/classes/container-img.bbclass b/meta/classes/container-img.bbclass
new file mode 100644
index 0000000..79ef3e8
--- /dev/null
+++ b/meta/classes/container-img.bbclass
@@ -0,0 +1,18 @@
+# This software is a part of ISAR.
+# Copyright (C) Siemens AG, 2021
+#
+# SPDX-License-Identifier: MIT
+#
+# This class provides the task 'containerize_rootfs'
+# to create container images containing the target rootfs.
+
+do_container_image[stamp-extra-info] = "${DISTRO}-${MACHINE}"
+do_container_image[vardeps] += "CONTAINER_FORMATS"
+do_container_image(){
+    rootfs_id="${DISTRO}-${DISTRO_ARCH}"
+
+    bbdebug 1 "Generate container image in these formats: ${CONTAINER_FORMATS}"
+    containerize_rootfs "${IMAGE_ROOTFS}" "${rootfs_id}" "${CONTAINER_FORMATS}"
+}
+
+addtask container_image before do_image after do_image_tools