"""Assign an interface to an ietf-acl classify chain.
:param node: Honeycomb node.
:param interface: Name of an interface on the node.
:param acl_name: Name of an ACL chain configured through ACL-plugin.
"""Assign an interface to an ietf-acl classify chain.
:param node: Honeycomb node.
:param interface: Name of an interface on the node.
:param acl_name: Name of an ACL chain configured through ACL-plugin.