[ceph-users] Re-run ansible to add monitor and RGWs

Hi, I've installed my ceph cluster with ceph-ansible a few months ago. I've just added one monitor and one rgw at that time. So I have 3 nodes, from which one is monitor and rgw and two others only OSD. Now I want to add the other two nodes as monitor and rgw. Can I just modify the ansible host file and re-run the site.yml? I've done some modification in Storage classes, I've added some OSD and uploaded a lot of data up to now. Is it safe to re-run ansible site.yml playbook? I don't want to end with a fresh new cluster! :D Thanks a lot, Khodayar