Add wsgi.py and Dockerfile (#187)

* Add a sample wsgi.py

* Add a sample Dockerfile making use of wsgi.py

* Use 'puppetdb' as default location for PUPPETDB_HOST

Dockerfile

@@ -0,0 +1,3 @@
+FROM grahamdumpleton/mod-wsgi-docker:python-2.7-onbuild
+CMD [ "wsgi.py" ]
+

puppetboard/default_settings.py

@@ -1,6 +1,6 @@
 import os
 
-PUPPETDB_HOST = 'localhost'
+PUPPETDB_HOST = 'puppetdb'
 PUPPETDB_PORT = 8080
 PUPPETDB_SSL_VERIFY = True
 PUPPETDB_KEY = None

wsgi.py

@@ -0,0 +1,3 @@
+from __future__ import absolute_import
+import os
+from puppetboard.app import app as application