Add documentation on variables to README.

Change default port to 8000.

README.md

@@ -17,16 +17,48 @@ theoretically work on older versions of Ubuntu or Debian based systems.
 Role Variables
 --------------
 
-TODO - A description of the settable variables for this role should go here, including any variables that are in 
+### Default Variables
-defaults/main.yml, vars/main.yml, and any variables that can/should be set via parameters to the role. Any variables 
+
-that are read from other roles and/or the global scope (ie. hostvars, group vars, etc.) should be mentioned here as 
+TODO - Explanation
-well.
+
+# Web root paths + app name + home
+app_name: app
+web_root_path: /srv/www
+web_server_group: www-data
+app_home: "{{ web_root_path }}/{{ app_name }}_webapp"
+
+# NGINX
+nginx_hostname: localhost
+nginx_app_static: "{{ app_home }}/{{ app_name }}/static/"
+
+# UWSGI
+uwsgi_port: 8001
+uwsgi_app_executable: "app:make_wsgi_app()"
+
+
+### Main (Internal) Variables
+
+The following variables are part of the internals of the role.  However if you really want to, you can tweak them to 
+work with your setup:
+
+- web_user: The non-root user who is allowed to control web + app servers on the target machine.
+    (Default: current user)
+- virtualenv_root: The common root directory of Python virtual environments associated with running the UWSGI app + 
+    server.  (Default: /srv/www/virtualenvs/)
+- uwsgi_venv: The virtual environment where UWSGI is installed.  (Default: virtualenv_root/uwsgi)
+- app_venv: The virtual environment where the dependencies of the WSGI app is installed.  
+    (Default: virtualenv_root/app_name)
+- nginx_app_conf: The filename of the NGINX configuration for the app.  (Default: app_name_uwsgi_nginx.conf)
+- supervisor_app_config: The filename of the supervisor configuration for the app.  (Default: app_name_supervisor.conf)
+- uwsgi_config: The path to the UWSGI configurations.  (Default: /srv/www/config/uwsgi)
+- uwsgi_app_ini: The filename of the UWSGI INI configuration for the app. (Default: app_name_uwsgi.ini)
+- uwsgi_service_name: The name of the UWSGI setup for the app according to supervisor.  (Default: app_name_uwsgi)
 
 Example Playbook
 ----------------
 
-Including an example of how to use your role (for instance, with variables passed in as parameters) is always nice for 
+The simplest way to include the role in your playbook is to copy the below configuration.  Remember to modify the 
-users too:
+app_name, nginx_hostname and uwsgi_app_executable parameters especially.
          
     - hosts: servers
       sudo: yes
@@ -38,6 +70,27 @@ users too:
               uwsgi_port: 8080, 
               uwsgi_app_executable: "app.build:make_wsgi_app()" }
               
+Default File Structure
+----------------------
+
+By default the role will organize files in the following directory structure:
+
+    /srv/www
+    ├── config
+    │   ├── nginx -> /etc/nginx
+    │   ├── supervisor -> /etc/supervisor
+    │   └── uwsgi
+    ├── logs
+    │   ├── nginx -> /var/log/nginx
+    │   ├── supervisor -> /var/log/supervisor
+    │   └── uwsgi
+    ├── app_webapp
+    │   ├── requirements.txt
+    │   └── app
+    └── virtualenvs
+        ├── app
+        └── uwsgi
+
 License
 -------
 
@@ -47,8 +100,8 @@ Author Information
 ------------------
 
 Dorian Pula
-email: dorian.pula at amber-penguin.software.ca
+- email: dorian.pula at amber-penguin.software.ca
-www: http://amber-penguin-software.ca
+- www: http://amber-penguin-software.ca
 
-This role is a spin-off of the technology developed for the Rookeries project: 
+This role is a spin-off of the technology developed for the [Rookeries project]: 
 http://rookeries.amber-penguin-software.ca/

defaults/main.yml

@@ -12,5 +12,5 @@ nginx_hostname: localhost
 nginx_app_static: "{{ app_home }}/{{ app_name }}/static/"
 
 # UWSGI
-uwsgi_port: 8001
+uwsgi_port: 8000
 uwsgi_app_executable: "app:make_wsgi_app()"