Ensure directory exists before creating known_hosts.

1 files changed, 6 insertions, 1 deletions

diff --git a/openstack/tester b/openstack/tester
index 583eb80..1643537 100755
--- a/openstack/tester
+++ b/openstack/tester
@@ -281,7 +281,12 @@ class Deployment(object):
 
     def _update_known_hosts(self):
         if not self._ssh_host_key_exists(self.host_machine.address):
-            with open('/root/.ssh/known_hosts', 'a') as known_hosts:
+            filename = '/root/.ssh/known_hosts';
+            print("No known_hosts: ensuring path");
+            if not os.path.exists(os.path.dirname(filename)):
+                os.makedirs(os.path.dirname(filename))
+            with open(filename, 'a') as known_hosts:
+                print("Generating known_hosts");
                 cliapp.runcmd(['ssh-keyscan', self.host_machine.address],
                               stdout=known_hosts)