Pylons 0.9.7-dev Nginx Deployment on a Two-Way Routed Xen Setup
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:Posted: 2007-11-10 01:23
:Tags: Pylons, Debian, Virtulization

On Dom0 set up port forwarding from port 80 to the DomU running NginX, in this case 10.0.0.1::

    sudo -i
    iptables -A PREROUTING -t nat -p tcp -i eth0 --dport 80 -j DNAT --to 10.0.0.1:80
    exit

These get lost on each reboot unless you put them into a script in ``/etc/network/if-up.d/iptables`` but that's OK for the moment.

First install Nginx::

    sudo apt-get install nginx

If you visit the URL of the Dom0 server you should see the ``Welcome to nginx!`` message served from Nginx on the DomU.

Next you need to setup Python and Pylons. Install python::

    sudo apt-get install python mercurial

Get vitualenv::

    wget http://pypi.python.org/packages/source/v/virtualenv/virtualenv-0.9.1.tar.gz
    tar zxfv virtualenv-0.9.1.tar.gz
    cp virtualenv-0.9.1/virtualenv.py ./
    rm virtualenv-0.9.1.tar.gz
    rm -r virtualenv-0.9.1

Decide where you want your Pylons applications. I like mine in ``/var/web`` so lets create a test project::
   
    sudo mkdir /var/web
    sudo mkdir /var/web/test
    sudo chown james:james /var/web/test

Setup a virtual environment::

    james@vm2:~$ python virtualenv.py /var/web/test
    New python executable in /var/web/test/bin/python
    Installing setuptools.............................done.
    james@vm2:~$ cd /var/web/test

Now you can install Pylons::

    mkdir dep
    cd dep
    hg clone http://pylonshq.com/hg/pylons-dev
    cd pylons-dev
    ../../bin/python setup.py develop

Now create a project::

    mkdir src
    cd src
    ../bin/paster create -t pylons Test

Now edit ``Test/test/config/middleware.py`` and set ``use_webop=True``. Serve the app with::

    cd Test/
    ../../bin/python setup.py develop
    ../../bin/easy_install sqlalchemy                        <-- So that beaker doesn't break
    ../../bin/paster serve --reload development.ini

That's it. Now you just need to setup Nginx to reverse proxy to the paste server running on port 5000.

Edit the ``/etc/nginx/nginx.conf`` file so that the ``location /`` part looks like this::

        location / {
            proxy_redirect          off;
            proxy_set_header        Host $host;
            proxy_set_header        X-Real-IP $remote_addr;
            proxy_set_header        X-Forwarded-For $proxy_add_x_forwarded_for;
            client_max_body_size    10m;
            client_body_buffer_size 128k;
            proxy_connect_timeout   90;
            proxy_send_timeout      90;
            proxy_read_timeout      90;
            proxy_buffer_size       4k;
            proxy_buffers           4 32k;
            proxy_busy_buffers_size 64k;
            proxy_temp_file_write_size 64k;
            proxy_pass  http://127.0.0.1:5000;
            proxy_redirect  default;
        }

You'll then need to restart nginx and the paster server::

    sudo /etc/init.d/nginx restart
    ../../bin/paster serve --reload development

If you press refresh in your browser you should see the Pylons welcome page.

Comments
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Segtext.Com &raquo; Pylons 0.9.7-dev Ngenix Deployment on a Two-Way Routed Xen Setup
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:Posted: 2007-11-10 08:19

[...] Hyde wrote an interesting post today on Pylons 0.9.7-dev Ngenix Deployment on a Two-Way Routed Xen SetupHere&#8217;s a quick [...]
:URL: http://www.segtext.com/?p=659

Crashlab
-----------

:Posted: 2008-01-12 02:02

Hi... Good tutorial.
I hope that also mine posted here: http://www.smokinglinux.com/vmware-server-virtualization/install-vmware-server-on-debian-etch-in-an-hetzner-rootserver
that speaks about installation of vmware with a bridged solution in an Hetzner RootServer is good for you. ;)
:URL: http://www.smokinglinux.com