> On 6 Sep 2020, at 5:20 am, Charles Medcoff <[email protected]> wrote:
>
> Hello all,
>
> First off apologies if some of this has been covered, I'll continue to search
> this group and net for solutions. I'm trying to run a Django app (Mezzanine)
> and MoinMoin. Mezz is going to run on python3 and MoinMoin python 2 as it's
> not yet been ported to 3. I understand the risks of running python2 and I'm
> fine with that.
>
> I learned that this was possible from this link
> <http://blog.bsmithers.co.uk/2017/10/python2-python3-on-the-same-apache-server/#:~:text=All%20was%20well%20when%20testing,starts%20to%20explain%20the%20solution.>
> but he doesn't go into too much detail - at least not enough for me to
> completely figure this out. From there he references this
> <http://blog.dscpl.com.au/2015/04/introducing-modwsgi-express.html> and that
> helps some more, but doesn't cover my "use case" if you will. The following
> are the steps I think that I need to follow but looking for some feedback as
> I'm on my third Azure Ubuntu image trying to get this figured out.
>
> 1. After creating my baseline VM image which does not include Apache by
> default, but does include both python2 and python3, create python virtual
> environments for each app using python2 and python3 respectively and install
> mod_wsgi-express into each using pip using the following commands:
>
> pip install mod_wsgi-httpd
> pip install mod_wsgi
Why don't you just install the system Apache for Ubuntu into your image if you
have the ability to run stuff as root? It is still better to use the system
Apache if you can, relying on mod_wsgi-httpd should only be done as a last
resort.
Also, instead of those two pip commands, it is better to use just:
pip install mod_wsgi-standalone
if you really need to have Apache installed as part of mod_wsgi-express in
Python virtual environment. That one package combines installation of both of
the above so that can list it in a requirements.txt file for pip, otherwise
they original packages have to be installed one at a time.
> I believe this will position me to be able to run any mod_wsgi-express
> command to either run each app its own non-root user port. The 2nd link
> tells how to serve my app and my static files separately as one would like to
> do in a production environment which is my target here.
>
> 3 (yes this 3 I'll come back to 2) - This is a bit of guess...the
> "Connecting into Apache installation" section of this link
> <https://pypi.org/project/mod-wsgi/> explains how I can use the
> 'module-config' parameter to mod_wgsi-express to generate configuration for
> my main/system apache install to load two separate mod_wsgi modules, one from
> my python3 virtual environment that I created for Mezz and one from my
> python2 virtual environment created for MoinMoin.
You said you had no system Apache, so using 'module-config' doesn't really make
any sense. Even if you had a system Apache (with or without using
mod_wsgi-httpd), you don't need to add mod_wsgi configuration to the system
Apache configuration directly. All you need to do is configure the system
Apache to proxy to the two separate mod_wsgi-express instances.
> 2 - What is the correct way for me to install my main/system apache instance
> such that I can complete step 3?
Install the system Apache using Ubuntu packaging tools. You don't need to
configure it to use mod_wsgi.
> 4 - finally I realize there is some main/system apache configuration to do to
> point the main/system apache instance to run as a reverse proxy to the app
> virtual environments (Mezz and MoinMoin). That seems to be covered by the
> first link.
Also see:
http://blog.dscpl.com.au/2015/06/proxying-to-python-web-application.html
<http://blog.dscpl.com.au/2015/06/proxying-to-python-web-application.html>
http://blog.dscpl.com.au/2015/07/redirection-problems-when-proxying-to.html
<http://blog.dscpl.com.au/2015/07/redirection-problems-when-proxying-to.html>
Ignore that it is talking about proxying to docker containers, it is still
relevant.
> I hope my questions make sense, and appreciate any assistance.
>
> Best Regards,
> cmedcoff
>
>
>
>
>
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