ansible-nginx-uwsgi-supervisor/README.md

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ansible-nginx-uwsgi-supervisor
==============================
An Ansible role to setup and manage a UWSGI app via supervisor, and served up on a NGINX web server. The goal of this
role is to make deployment of WSGI app as a simple and sane as possible. Additionally the role provides sane defaults
for logging and folder structure setup.
Requirements
------------
- aptitude or python-apt (required by apt tasks)
- python > 2.5 (required by ini_file tasks)
This role is designed to work against a modern Ubuntu system. (Tested on Ubuntu 13.10 and 14.04) It should
theoretically work on older versions of Ubuntu or Debian based systems.
Role Variables
--------------
### Default Variables
TODO - Explanation
# 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
----------------
The simplest way to include the role in your playbook is to copy the below configuration. Remember to modify the
app_name, nginx_hostname and uwsgi_app_executable parameters especially.
- hosts: servers
sudo: yes
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()" }
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
-------
BSD
Author Information
------------------
Dorian Pula
- 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/