Add remaining documentation to the README.

Also update role with more consistent variable names.

README.md

@@ -17,42 +17,81 @@ theoretically work on older versions of Ubuntu or Debian based systems.
 Role Variables
 --------------
 
-### Default Variables
+There are a few crucial variables that you need to configure for your particular WSGI powered app.  They are broken up
+into sections and described below:
 
-TODO - Explanation
+### App Settings
 
-# 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"
+- app_name:
+    - The name of WSGI app to manage via this role.
+    - Used as a prefix through out the role.
+- app_root_path:
+    - The path to the root folder of the app.
+    - Default: {{ web_root_path }}/{{ app_name }}_webapp"
 
-# NGINX
-nginx_hostname: localhost
-nginx_app_static: "{{ app_home }}/{{ app_name }}/static/"
+### NGINX
 
-# UWSGI
-uwsgi_port: 8001
-uwsgi_app_executable: "app:make_wsgi_app()"
+- app_nginx_hostname:
+    - The DNS hostname that the application serves.
+    - Default: localhost
+- app_nginx_app_static: 
+    - The path to the static elements of the site (templates, CSS, images, etc.)
+    - Default: app_root_path/app_name/static/
 
+### UWSGI
+
+- app_uwsgi_port: 
+    - The port number that the WSGI runs on and accepts requests forwarded from NGINX.
+    - Default: 8001
+- app_uwsgi_executable:
+    - The method executed by UWSGI to create a WSGI running app.  Usually a WSGI factory method or module in the app.
+    - Default: app:make_wsgi_app()
+
+### General Web:
+
+These variables are not as crucial to configure.  They do give good defaults for configuring the system in a consistent,
+POSIX/LSB-friendly and user-friendly manner.  See the section on Default File Structure for more details.
+
+- web_root_path:
+    - The root of the entire web app structure include configuration and logging.
+    - Default: /srv/www
+- web_server_group:
+    - The user group responsible for starting, stopping and managing the web and app servers on the target machine. 
+    - Default: www-data
 
 ### 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)
+- web_user: 
+    - The non-root user who is allowed to control web + app servers on the target machine.
+    - Default: current user
+- virtualenv_root_path: 
+    - 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_path: 
+    - 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
 ----------------
@@ -66,10 +105,13 @@ app_name, nginx_hostname and uwsgi_app_executable parameters especially.
       roles:
           - { role: ansible-nginx-uwsgi-supervisor, 
               app_name: app, 
-              nginx_hostname: app.domain.net,
-              uwsgi_port: 8080, 
-              uwsgi_app_executable: "app.build:make_wsgi_app()" }
-              
+              app_nginx_hostname: app.domain.net,
+              app_uwsgi_port: 8080, 
+              app_uwsgi_executable: "app.build:make_wsgi_app()" }
+
+A comprehensive example can be found in the [ansible-rookeries role] 
+(https://bitbucket.org/dorianpula/ansible-rookeries) that uses this role as a base to deploy a Flask-based webapp.
+
 Default File Structure
 ----------------------
 
@@ -100,8 +142,9 @@ Author Information
 ------------------
 
 Dorian Pula
+
+- twitter: @dorianpula
 - email: dorian.pula at amber-penguin.software.ca
 - www: http://amber-penguin-software.ca
 
-This role is a spin-off of the technology developed for the [Rookeries project]: 
-http://rookeries.amber-penguin-software.ca/
+This role is a spin-off of the technology developed for the [Rookeries project] (http://rookeri.es/)

defaults/main.yml

@@ -2,15 +2,16 @@
 # defaults file for ansible-nginx-uwsgi-supervisor
 
 # 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"
+
+app_name: app
+app_root_path: "{{ web_root_path }}/{{ app_name }}_webapp"
 
 # NGINX
-nginx_hostname: localhost
-nginx_app_static: "{{ app_home }}/{{ app_name }}/static/"
+app_nginx_hostname: localhost
+app_nginx_static_path: "{{ app_root_path }}/{{ app_name }}/static/"
 
 # UWSGI
-uwsgi_port: 8000
-uwsgi_app_executable: "app:make_wsgi_app()"
+app_uwsgi_port: 8000
+app_uwsgi_executable: "app:make_wsgi_app()"

handlers/main.yml

@@ -1,7 +1,7 @@
 ---
 # handlers file for ansible-nginx-uwsgi-supervisor
 - name: restart uwsgi app
-  supervisorctl: name={{ uwsgi_service_name }} state=restarted config=/etc/supervisor/supervisor.conf
+  supervisorctl: name={{ uwsgi_app_service_name }} state=restarted config=/etc/supervisor/supervisor.conf
   sudo: yes
 
 - name: restart supervisord

tasks/nginx.yaml

@@ -4,13 +4,13 @@
   sudo: yes
 
 - name: configure nginx
-  template: src=nginx/app_uwsgi_nginx.conf dest=/etc/nginx/sites-available/{{ nginx_app_conf }}
+  template: src=nginx/app_uwsgi_nginx.conf dest=/etc/nginx/sites-available/{{ nginx_app_config }}
   sudo: yes
 
 - name: link to enable nginx configuration
   file: state=link
-        src=/etc/nginx/sites-available/{{ nginx_app_conf }}
-        path=/etc/nginx/sites-enabled/{{ nginx_app_conf }}
+        src=/etc/nginx/sites-available/{{ nginx_app_config }}
+        path=/etc/nginx/sites-enabled/{{ nginx_app_config }}
   sudo: yes
 
 - name: disable default configuration

tasks/uwsgi.yaml

@@ -4,5 +4,5 @@
   sudo: yes
 
 - name: configure app on uwsgi server
-  template: src=uwsgi/app_uwsgi.ini dest={{ uwsgi_config }}/{{ uwsgi_app_ini }}
+  template: src=uwsgi/app_uwsgi.ini dest={{ uwsgi_config_path }}/{{ uwsgi_app_ini }}
   sudo: yes

templates/nginx/app_uwsgi_nginx.conf

@@ -5,7 +5,7 @@ server {
     error_log   {{ web_root_path }}/logs/nginx/{{ app_name }}-error.log info;
 
     location /static/  {
-        alias   {{ nginx_app_static }};
+        alias   {{ app_nginx_static_path }};
     }
 
     location / {

templates/supervisor/app_supervisor.conf

@@ -1,7 +1,7 @@
 ; UWSGI for {{ app_name }}
-[program:{{ uwsgi_service_name }}]
+[program:{{ uwsgi_app_service_name }}]
 user={{ web_server_group }}
-command={{ uwsgi_venv }}/bin/uwsgi --ini {{ uwsgi_config }}/{{ uwsgi_app_ini }}
+command={{ uwsgi_venv }}/bin/uwsgi --ini {{ uwsgi_config_path }}/{{ uwsgi_app_ini }}
 stopsignal=TERM
 stdout_logfile = {{ web_root_path }}/logs/supervisor/{{ app_name }}-application.log
 stdout_logfile_backups = 5

templates/uwsgi/app_uwsgi.ini

@@ -1,8 +1,8 @@
 [uwsgi]
-socket = :{{ uwsgi_port }}
+socket = :{{ app_uwsgi_port }}
 master = true
 processes = 8
 
-chdir = {{ app_home }}
+chdir = {{ app_root_path }}
 virtualenv = {{ app_venv }}
-module = {{ uwsgi_app_executable }}
+module = {{ app_uwsgi_executable }}

vars/main.yml

@@ -1,21 +1,21 @@
 ---
 # vars file for ansible-nginx-uwsgi-supervisor
 
-# Web root paths + app name + home
+# User
 web_user: "{{ ansible_env.SUDO_USER }}"
 
 # Virtualenvs
-virtualenv_root: "{{ web_root_path }}/virtualenvs"
-uwsgi_venv: "{{ virtualenv_root }}/uwsgi"
-app_venv: "{{ virtualenv_root }}/{{ app_name }}"
+virtualenv_root_path: "{{ web_root_path }}/virtualenvs"
+uwsgi_venv: "{{ virtualenv_root_path }}/uwsgi"
+app_venv: "{{ virtualenv_root_path }}/{{ app_name }}"
 
 # NGINX
-nginx_app_conf: "{{ app_name }}_uwsgi_nginx.conf"
+nginx_app_config: "{{ app_name }}_uwsgi_nginx.conf"
 
 # Supervisor
 supervisor_app_config: "{{ app_name }}_supervisor.conf"
 
 # UWSGI
-uwsgi_config: "{{ web_root_path }}/config/uwsgi"
+uwsgi_config_path: "{{ web_root_path }}/config/uwsgi"
 uwsgi_app_ini: "{{ app_name }}_uwsgi.ini"
-uwsgi_service_name: "{{ app_name }}_uwsgi"
+uwsgi_app_service_name: "{{ app_name }}_uwsgi"