Document ssh_args ControlMaster option requirement

Clarify issues met in: rhevm-qe-automation#20
KKoukiou · Sep 29, 2017 · 38ca707 · 38ca707
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commit 38ca707
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/README.md b/README.md
@@ -11,7 +11,9 @@ This role performs sealing steps for following operating systems:
 Requirements
 ------------
 
-None
+You need to have enabled [ControlMaster](http://docs.ansible.com/ansible/latest/intro_configuration.html#openssh-specific-settings)
+under [ssh_connection] header in ansible configuration file.  
+The defaults `ssh_args = -o ControlMaster=auto -o ControlPersist=60s` will work.
 
 Role Variables
 --------------