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167 lines
4.8 KiB
167 lines
4.8 KiB
Deployment
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----------
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Isso ships with a built-in web server, which is useful for the initial setup
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and may be used in production for low-traffic sites (up to 20 requests per
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second). Running a "real" WSGI server supports nice things such as UNIX domain
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sockets, daemonization and solid HTTP handler while being more stable, secure
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and web-scale than the built-in web server.
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* gevent_, coroutine-based network library
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* uWSGI_, full-featured uWSGI server
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* gunicorn_, Python WSGI HTTP Server for UNIX
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* mod_wsgi_, Apache interface to WSGI
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* mod_fastcgi_, Apache interface to FastCGI
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* uberspace.de, `try this guide (in german) <http://blog.posativ.org/2014/isso-und-uberspace-de/>`_
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`gevent <http://gunicorn.org/>`__
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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Probably the easiest deployment method. Install with PIP (requires libevent):
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.. code-block:: sh
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$ pip install gevent
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Then, just use the ``isso`` executable as usual. Gevent monkey-patches Python's
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standard library to work with greenlets.
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To execute Isso, just use the commandline interface:
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.. code-block:: sh
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$ isso -c my.cfg run
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Unfortunately, gevent 0.13.2 does not support UNIX domain sockets (see `#295
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<https://github.com/surfly/gevent/issues/295>`_ and `#299
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<https://github.com/surfly/gevent/issues/299>`_ for details).
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`uWSGI <http://uwsgi-docs.readthedocs.org/en/latest/>`__
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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Isso has special support for uWSGI, namely fast IPC caching, job spooling and
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delayed jobs. It is the author's choice, but not the only one. You need
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uWSGI 1.9 or higher, fortunately you can install it from PyPi:
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.. code-block:: sh
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~> apt-get install build-essential python-dev
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~> pip install uwsgi
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For convenience, I recommend a INI-style configuration (you can also
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supply everything as command-line arguments):
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.. code-block:: ini
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[uwsgi]
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http = :8080
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master = true
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; set to `nproc`
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processes = 4
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cache2 = name=hash,items=1024,blocksize=32
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; you may change this
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spooler = /tmp/isso/mail
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module = isso.run
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; uncomment if you use a virtual environment
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; virtualenv = /path/to/isso
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env = ISSO_SETTINGS=/path/to/isso.cfg
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Then, create the spooling directory and start Isso via uWSGI:
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.. code-block:: sh
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~> mkdir /tmp/isso/mail
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~> uwsgi /path/to/uwsgi.ini
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`gunicorn <http://gunicorn.org>`__
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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Gunicorn 'Green Unicorn' is a Python WSGI HTTP Server for UNIX with a pre-fork
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worker ported from Ruby's Unicorn project. Install gunicorn_ via PIP:
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.. code-block:: sh
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$ pip install gunicorn
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To execute Isso, use a command similar to:
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.. code-block:: sh
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$ export ISSO_SETTINGS="/path/to/isso.cfg"
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$ gunicorn -b localhost:8080 -w 4 --preload isso.run
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`mod_wsgi <https://code.google.com/p/modwsgi/>`__
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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.. note:: This information may be incorrect, if you have more knowledge on how
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to deploy Python via `mod_wsgi`, consider extending/correcting this section.
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For more information, see `Flask: Configuring Apache
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<http://flask.pocoo.org/docs/deploying/mod_wsgi/#configuring-apache>`_.
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.. code-block:: apache
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<VirtualHost *>
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ServerName example.org
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WSGIDaemonProcess isso user=www-data group=www-data threads=5
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WSGIScriptAlias / /var/www/isso.wsgi
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</VirtualHost>
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Next, copy'n'paste to `/var/www/isso.wsgi`:
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.. code-block:: python
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from isso import make_app
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from isso.core import Config
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application = make_app(Config.load("/path/to/isso.cfg"))
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`mod_fastcgi <http://www.fastcgi.com/mod_fastcgi/docs/mod_fastcgi.html>`__
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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.. note:: This information may be incorrect, if you have more knowledge on how
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to deploy Python via `mod_fastcgi`, consider extending/correcting this section.
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For more information, see `Flask: Configuring Apache
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<http://flask.pocoo.org/docs/deploying/fastcgi/#configuring-apache>`_.
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.. code-block:: apache
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LoadModule fastcgi_module /usr/lib64/httpd/modules/mod_fastcgi.so
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FastCgiServer /var/www/html/yourapplication/app.fcgi -idle-timeout 300 -processes 5
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<VirtualHost *>
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ServerName example.org
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AddHandler fastcgi-script fcgi
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ScriptAlias / /var/www/isso.fcgi
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<Location />
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SetHandler fastcgi-script
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</Location>
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</VirtualHost>
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Next, copy'n'paste to `/var/www/isso.fcgi` (or whatever location you prefer):
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.. code-block:: python
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#!/usr/bin/env python
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#: uncomment if you're using a virtualenv
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# import sys
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# sys.insert(0, '<your_local_path>/lib/python2.7/site-packages')
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from isso import make_app
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from isso.core import Config
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from flup.server.fcgi import WSGIServer
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application = make_app(Config.load("/path/to/isso.cfg"))
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WSGIServer(application).run()
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