zezere: role/playbook to deploy Zezere

Zezere is the Fedora IoT device provisioning service.  It is the
software that runs *provision.fedoraproject.org*, but it can be
self-hosted (if you can figure it out; there is no documentation
whatsoever).

The main use case for running Zezere locally is to automatically add
trusted SSH public keys to Fedora IoT devices, without depending on a
cloud service.  This playbook sets up Zezere with the very minimal
configuration needed to meet this goal.

roles/zezere/files/zezere.httpd.conf

@@ -0,0 +1,14 @@
+# vim: set ft=apache :
+
+WSGIDaemonProcess zezere \
+	user=zezere \
+	group=zezere \
+	display-name=%{GROUP}
+
+
+WSGIScriptAlias / /usr/local/share/zezere.wsgi \
+    process-group=zezere
+
+<Location />
+    Require all granted
+</Location>

roles/zezere/files/zezere.wsgi

@@ -0,0 +1 @@
+from zezere.wsgi import application