path: root/ansible.cfg
diff options
authorLuke Meyer <>2017-07-06 18:01:12 -0400
committerLuke Meyer <>2017-07-11 13:28:50 -0400
commitb39cad5897ef80244e6496ccd5a6c5ec0cd577b6 (patch)
treecbcd1ee8dcb1ce2d5b444bdec687d41f29487ed2 /ansible.cfg
parent5f51278dee925c47055aacbb8ffac5e351ea7ee2 (diff)
ansible.cfg: improve ssh ControlPath
AWS hosts and user names frequently make the default Ansible ControlPath too long. This prevents ssh persistent connections, significantly impacting runtime. More detail: This config change shortens the ControlPath to make this less likely. It would be better to change it to the %C hash, as extremely long hostnames or usernames could still encounter this problem, but that is not yet available with RHEL's openssh. This at least improves the situation.
Diffstat (limited to 'ansible.cfg')
1 files changed, 4 insertions, 0 deletions
diff --git a/ansible.cfg b/ansible.cfg
index 0c74d63da..14b77ba0f 100644
--- a/ansible.cfg
+++ b/ansible.cfg
@@ -29,3 +29,7 @@ nocows = True
# Additional ssh options for OpenShift Ansible
pipelining = True
+# shorten the ControlPath which is often too long; when it is,
+# ssh connection reuse silently fails, making everything slower.
+control_path = %(directory)s/%%h-%%r