da966c9873
Adding a firewall rule as workaround to help TFTP traffic necessary for Ironic to work with PXE on Ubuntu Bionic. Inspired by https://review.openstack.org/643570 Thanks Harald! Depends-On: https://review.openstack.org/642507 Change-Id: I314f7b436827c318c3ccec22eb85cf4d4ac695df