title: Disable gather_facts for a single host only
body: <p>I am trying to share some variables between multiple hosts in a playbook, and am using the technique described in this <a href="https://stackoverflow.com/questions/33896847/how-do-i-set-register-a-variable-to-persist-between-plays-in-ansible">stack overflow question</a>.  It works, however each run ansible complains that the dummy host (K8S_MASTER_CA_HASH) does not exist, so it can't gather facts about it.</p>
  <p>Is it possible to tell ansible not to gather facts for a single host in a play run against various hosts?</p>
  <p>I tried using 'localhost' as the dummy host to hold the variables, but then ansible complains it can't ssh to localhost.  (Seems like wrong approach)</p>