Merge branch '346-creating-cluster-fails-if-the-hostname-is-oas-dev' into 'master'

Resolve "Creating cluster fails if the hostname is `oas-dev`"

Closes #346

See merge request openappstack/openappstack!106

openappstack/ansible.py

@@ -67,9 +67,11 @@ def create_inventory(cluster):
               'r') as stream:
         inventory = yaml.safe_load(stream)
 
-    inventory['all']['hosts'][cluster.hostname] = \
-        inventory['all']['hosts']['oas-dev']
-    del inventory['all']['hosts']['oas-dev']
+    # Rename the hostname in the inventory to one provided by the user.
+    if cluster.hostname != 'oas-dev':
+        inventory['all']['hosts'][cluster.hostname] = \
+            inventory['all']['hosts']['oas-dev']
+        del inventory['all']['hosts']['oas-dev']
 
     inventory['all']['hosts'][cluster.hostname]['ansible_host'] = \
         cluster.ip_address