created major large-scale changes

vars/opengist_settings.yml

@@ -0,0 +1,15 @@
+gist:
+  containerized: true
+  subdomain: gist
+  ssh:
+    port: 2323
+  search:
+    priority:
+      - content
+      - description
+      - filename
+      - topic
+      - title
+  db:
+    type: mysql
+    name: "{{ mysql.users.admin.databases.opengist.name }}"