Simplify Django organization, add South support.

app_setup/setup.yml

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+---
+
+# tested only on CentOS6, may need adaptations for other operating systems
+# TODO: install any ansible plugins we need
+# TODO: set up Apache or Nginx to proxy this application
+# TODO: setup celery and any worker processes/requirements
+
+- hosts: 127.0.0.1
+  gather_facts: True
+  user: root
+  vars_files:
+    - vars/vars.yml
+
+  tasks:
+   
+      - name: install packages
+        action: yum name=$item state=installed
+        with_items:
+            - postgresql               # database client
+            - postgresql-server        # database server
+            - Django                   # web stack
+            - Django-south             # migration support
+            - python-django-tastypie   # rest support 
+            - python-psycopg2
+
+      # the following could probably be included, though ident identification is fiddly
+      # so we won't use it to create the database and database user
+
+      - name: configure the database authentication more or less open for setup
+        template: src=templates/pg_hba_low.j2 dest=/var/lib/pgsql/data/pg_hba.conf
+
+      - name: restart postgresql
+        service: name=postgresql state=restarted
+
+      - name: setup the postgresql user
+        postgresql_user: >
+          name=ansible_commander 
+          db=ansible_commander 
+          password=${database_password} 
+          login_user=postgres
+          priv=ALL 
+        sudo_user: postgres
+
+      - name: create the database
+        postgresql_db: name=acom state=present
+
+      - name: configure the database authentication for runtime mode
+        template: src=templates/pg_hba.j2 dest=/var/lib/pgsql/data/pg_hba.conf
+
+      - name: restart postgresql
+        service: name=postgresql state=restarted
+
+      - name: configure python settings (with database password)
+        template: src=templates/settings.py.j2 dest=${working_dir}/acom/settings.py
+
+      - name: sync Django database
+        shell: python ${working_dir}/acom/manage.py syncdb
+
+      - name: sync django database
+        django_manage: >
+          command=syncdb
+          app_path=${working_dir}/acom
+ 
+      #- name: run south migrations
+      #  command: python ${working_dir}/acom/manage.py migrate db_migrate
+

app_setup/templates/config.j2

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+[database]
+password={{ database_password }}
+
+[inventory]
+secret=TheEnemysGateisDown

app_setup/templates/db.j2

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+CREATE USER ansible_commander UNENCRYPTED PASSWORD '{{ database_password }}';
+
+GRANT ALL on DATABASE ansible_commander TO ansible_commander;
+GRANT ALL on DATABASE ansible_commander_test TO ansible_commander;
+
+\c ansible_commander
+
+CREATE TABLE thing
+(
+  id BIGSERIAL PRIMARY KEY,
+  type TEXT
+);
+
+CREATE TABLE properties
+(
+  id BIGSERIAL PRIMARY KEY,
+  thing_id BIGSERIAL NOT NULL REFERENCES thing(id) ON DELETE CASCADE,
+  key TEXT NOT NULL,
+  value TEXT
+);
+
+CREATE UNIQUE INDEX properties_thing_idx ON properties (thing_id, key);
+CREATE INDEX properties_key_idx ON properties (key);
+CREATE INDEX properties_value_idx ON properties (key, value);
+GRANT ALL on TABLE thing TO ansible_commander;
+GRANT ALL on TABLE properties TO ansible_commander;
+GRANT ALL ON SEQUENCE thing_id_seq TO ansible_commander;
+GRANT ALL ON SEQUENCE properties_id_seq TO ansible_commander;
+
+\c ansible_commander_test
+
+CREATE TABLE thing
+(
+  id BIGSERIAL PRIMARY KEY,
+  type TEXT
+);
+
+CREATE TABLE properties
+(
+  id BIGSERIAL PRIMARY KEY,
+  thing_id BIGSERIAL NOT NULL REFERENCES thing(id) ON DELETE CASCADE,
+  key TEXT NOT NULL,
+  value TEXT
+);
+
+CREATE UNIQUE INDEX properties_thing_idx ON properties (thing_id, key);
+CREATE INDEX properties_key_idx ON properties (key);
+CREATE INDEX properties_value_idx ON properties (key, value);
+GRANT ALL on TABLE thing TO ansible_commander;
+GRANT ALL on TABLE properties TO ansible_commander;
+GRANT ALL ON SEQUENCE thing_id_seq TO ansible_commander;
+GRANT ALL ON SEQUENCE properties_id_seq TO ansible_commander;
+

app_setup/templates/pg_hba.j2

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+# Database administrative login by UNIX sockets
+local   all         postgres                          ident
+
+# TYPE  DATABASE    USER        CIDR-ADDRESS          METHOD
+local   all         all                               md5
+host    all         all         127.0.0.1/32          md5
+host    all         all         ::1/128               md5

app_setup/templates/pg_hba_low.j2

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+# temporary security setup for initial config only
+
+# TYPE  DATABASE    USER        CIDR-ADDRESS          METHOD
+local   all         postgres                          trust
+

app_setup/templates/settings.py.j2

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+# Django settings for acom project.
+
+DEBUG = True
+TEMPLATE_DEBUG = DEBUG
+
+ADMINS = (
+    # ('Your Name', 'your_email@domain.com'),
+)
+
+MANAGERS = ADMINS
+
+DATABASES = {
+    'default': {
+        'ENGINE': 'postgresql_psycopg2', 
+        'NAME': 'acom',                  
+        'USER': 'ansible_commander',                      
+        'PASSWORD': '{{ database_password }}', 
+        'HOST': '',                      
+        'PORT': '',                      
+    }
+}
+
+# Local time zone for this installation. Choices can be found here:
+# http://en.wikipedia.org/wiki/List_of_tz_zones_by_name
+# although not all choices may be available on all operating systems.
+# On Unix systems, a value of None will cause Django to use the same
+# timezone as the operating system.
+# If running in a Windows environment this must be set to the same as your
+# system time zone.
+TIME_ZONE = 'America/New_York'
+
+# Language code for this installation. All choices can be found here:
+# http://www.i18nguy.com/unicode/language-identifiers.html
+LANGUAGE_CODE = 'en-us'
+
+SITE_ID = 1
+
+# If you set this to False, Django will make some optimizations so as not
+# to load the internationalization machinery.
+USE_I18N = True
+
+# If you set this to False, Django will not format dates, numbers and
+# calendars according to the current locale
+USE_L10N = True
+
+# Absolute filesystem path to the directory that will hold user-uploaded files.
+# Example: "/home/media/media.lawrence.com/"
+MEDIA_ROOT = ''
+
+# URL that handles the media served from MEDIA_ROOT. Make sure to use a
+# trailing slash if there is a path component (optional in other cases).
+# Examples: "http://media.lawrence.com", "http://example.com/media/"
+MEDIA_URL = ''
+
+# URL prefix for admin media -- CSS, JavaScript and images. Make sure to use a
+# trailing slash.
+# Examples: "http://foo.com/media/", "/media/".
+ADMIN_MEDIA_PREFIX = '/media/'
+
+# Make this unique, and don't share it with anybody.
+SECRET_KEY = 'p7z7g1ql4%6+(6nlebb6hdk7sd^&fnjpal308%n%+p^_e6vo1y'
+
+# List of callables that know how to import templates from various sources.
+TEMPLATE_LOADERS = (
+    'django.template.loaders.filesystem.Loader',
+    'django.template.loaders.app_directories.Loader',
+#     'django.template.loaders.eggs.Loader',
+)
+
+MIDDLEWARE_CLASSES = (
+    'django.middleware.common.CommonMiddleware',
+    'django.contrib.sessions.middleware.SessionMiddleware',
+    'django.middleware.csrf.CsrfViewMiddleware',
+    'django.contrib.auth.middleware.AuthenticationMiddleware',
+    'django.contrib.messages.middleware.MessageMiddleware',
+)
+
+ROOT_URLCONF = 'acom.urls'
+
+TEMPLATE_DIRS = (
+    # Put strings here, like "/home/html/django_templates" or "C:/www/django/templates".
+    # Always use forward slashes, even on Windows.
+    # Don't forget to use absolute paths, not relative paths.
+)
+
+INSTALLED_APPS = (
+    'django.contrib.auth',
+    'django.contrib.contenttypes',
+    'django.contrib.sessions',
+    'django.contrib.sites',
+    'django.contrib.messages',
+    'main',
+    'south',
+
+    # Uncomment the next line to enable the admin:
+    #'django.contrib.admin',
+    # Uncomment the next line to enable admin documentation:
+    # 'django.contrib.admindocs',
+)

app_setup/vars/vars.yml

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+---
+database_password: gateIsDown