Add the beginning of a role for nuancier.

roles/nuancier/tasks/main.yml

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+---
+# Configuration for the nuancier webapp
+
+- name: install needed packages
+  yum: pkg=$item state=installed
+  with_items:
+  - nuancier-lite
+  tags:
+  - packages
+
+- name: copy sundry nuancier configuration
+  template: >
+    src={{ item.file }} dest={{ item.location }}/{{ item.file }}
+    owner=apache group=apache mode=0600
+  with_items:
+  - { file: nuancier.cfg, location: /etc/nuancier }
+  - { file: nuancier.conf, location: /etc/httpd/conf.d }
+  - { file: nuancier.wsgi, location: /usr/share/nuancier }
+  tags:
+  - config
+  notify:
+  - restart apache

roles/nuancier/templates/nuancier.cfg

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+# Beware that the quotes around the values are mandatory
+
+import os
+
+### Secret key for the Flask application
+SECRET_KEY='{{ nuancier_secret_key }}'
+
+### url to the database server:
+DB_URL='postgres://{{ nuancier_db_user }}:{{ nuancier_db_pass }}@{{ nuancier_db_host }}/{{ nuancier_db_name }}'
+
+### The FAS groups in which the admin of nuancier-lite are
+### This can either be a single group or multiple, defined between
+### parenthesis.
+ADMIN_GROUP=('sysadmin-nuancier', 'sysadmin-main')
+
+
+### Static folder
+### The folder containing the css, javascript as well as the pictures
+### candidates and the cache of those pictures.
+### This directory should be somewhere where apache can access, it's
+### proposed in '/var/www/nuancier'
+STATIC_FOLDER = '/var/www/nuancier'
+
+### Pictures folder
+### The folder in which are located the pictures of the different elections.
+### This folder does not have to be writable by the application but should be
+### readable.
+### /!\ It should be the full path to this folder
+PICTURE_FOLDER = os.path.join(STATIC_FOLDER, 'pictures')
+
+### Cache folder
+### The folder in which the application will generate thumbnails of the pictures
+### selected for an election.
+### This folder *must* be *writable* by the application.
+### /!\ It should be the full path to this folder
+CACHE_FOLDER = os.path.join(STATIC_FOLDER, 'cache')
+
+### Size of the thumbnails (keeping the ratio)
+### In order to reduce the loading page of the election page that might contains
+### more than hundreds pictures, the application generates thumbnails of each
+### pictures.
+### The application will keep the ratio intact and just make sure that either
+### length or width of the picture fit the length and width specified below.
+THUMB_SIZE = (256, 256)

roles/nuancier/templates/nuancier.conf

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+Alias /static /var/www/nuancier/static
+
+WSGIDaemonProcess nuancier maximum-requests=1000 display-name=nuancier processes=4 threads=4
+WSGISocketPrefix run/wsgi
+WSGIRestrictStdout On
+WSGIRestrictSignal Off
+WSGIPythonOptimize 1
+
+WSGIScriptAlias / /usr/share/nuancier/nuancier.wsgi
+
+<Location />
+    WSGIProcessGroup nuancier
+</Location>
+

roles/nuancier/templates/nuancier.wsgi

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+#-*- coding: utf-8 -*-
+
+# The three lines below are required to run on EL6 as EL6 has
+# two possible version of python-sqlalchemy and python-jinja2
+# These lines make sure the application uses the correct version.
+import __main__
+__main__.__requires__ = ['SQLAlchemy >= 0.7', 'jinja2 >= 2.4']
+import pkg_resources
+
+import os
+# Set the environment variable pointing to the configuration file
+os.environ['NUANCIER_CONFIG'] = '/etc/nuancier/nuancier.cfg'
+
+# The most import line to make the wsgi working
+from nuancier import APP as application
+