Hey Graham, been awhile.  Glad I could help ya out with that amzn gift.  
Got busy doing other crap and on road trips this summer so took a break 
from programming.  Also hit a wall with flask where it became difficult to 
build a dynamic user dashboard system so got discouraged.  I like flask but 
Im finding its extensibility and total freedom to craft your own web app to 
be a double edged sword.  I may use it for simple static sites but for more 
complexity I may have to abandon it because it feels like the things I want 
to do become too convoluted and require skill on the level of a 
web/software engineer.  Not sure why I would reinvent the proverbial 
'wheel' when at my level it will be inferior and may be bottlenecked or 
have security breaches Im unaware of when someone at a much higher level 
has built something much better.  Not only that, to manually edit every sql 
query, every init.py change, every html change is going to be a logistical 
nightmare if Im managing like 20 websites.  So Im knocking out a good 
django series and I like how its structured, more split up, easier to 
manage via admin panel, apps can be reused etc.  I hope its going to solve 
some of these logistical and efficiency issues as far as building and 
managing websites.  My short term goal is to build sites like a blog with 
commenting system, a forum, dynamic user dashboard, and later on a basic 
ecommerce store, and to be able to manage these sites easier via django 
admin (or partially hand the reins to the site owner for basic content 
posting/editing).   That way my time is freed up from doing menial edits 
and whatnot for client's sites.  I hope django can be my answer to these 

Anyways I was curious if you have experience / advice in this area, and 
currently Im revisiting how to properly set up numerous projects each with 
their own separate virtual environment, as we previously discussed below.  
I plan on using this local ubuntu VM as my local dev server, hosting all my 
projects (5-10 short term, 20-50+ eventually) and then uploading them to 
digital ocean for production.  All I need at the moment is to set up a few 
projects and make sure their virtualenvs are separate but sharing the same 
IP.  Thanks.

On 12 May 2016, at 6:32 PM, Jaqen Nki <proj...@gmail.com> wrote: 
So I take it for a new project, I repeat the process, new vhost and .wsgi 
file, and create a wsgi.load file for each site? 

The wsgi.load file should only have in it the LoadModule, WSGIPythonHome 
and WSGIRestrictEmbedded directives. They applied to the server as a whole 
and not specific VirtualHosts. 

When you talk about adding more VirtualHost’s, that is when you will need 
to be a bit careful with respect to virtual environments. 

First up, a separate VirtualHost is used for each distinct site hostname. 
Don’t use separate VirtualHost’s if only trying to mount different 
applications at different sub URLs of the same site. Seen people try and 
use multiple VirtualHost’s for same site hostname too many times. Is wrong 

Because you are going to have multiple VirtualHost’s would suggest doing 
things a little differently. 

First up, the wsgi.load file would only have LoadModule and 
WSGIRestrictEmbedded directives in it. Not WSGIPythonHome. 

In that file the WSGIPythonHome was acting as a fallback for both embedded 
mode and daemon mode. With WSGIRestrictEmbedded set to On, don’t need the 
fallback. Instead, we want to set python-home for each daemon process group 
setup using WSGIDaemonProcess directive. 


# wsgi.load 

LoadModule … 
WSGIRestrictEmbedded On 

# site1.conf 

<VirtualHost *:80> 
ServerName site1.host.name 

WSGIDaemonProcess site1 python-home=/some/path/site1/
WSGIProcessGroup site1 
WSGIApplicationGroup %{GLOBAL} 

WSGIScriptAlias / /some/path/site1/app.wsgi 


# site2.conf 

<VirtualHost *:80> 
ServerName site2.host.name 

WSGIDaemonProcess site2 python-home=/some/path/site2/venv 
WSGIProcessGroup site2 
WSGIApplicationGroup %{GLOBAL} 

WSGIScriptAlias / /some/path/site1/app.wsgi 


If you do need to host multiple applications under same VirtualHost at 
different sub URLs, you would use something like: 

# site3.conf 

<VirtualHost *:80> 
ServerName site3.host.name 

WSGIDaemonProcess site3_main python-home=/some/path/site3_main/venv 
WSGIDaemonProcess site3_suburl python-home=/some/path/site3_suburl/venv 

WSGIProcessGroup site3 
WSGIApplicationGroup %{GLOBAL} 

WSGIScriptAlias /suburl /some/path/site3_suburl/app.wsgi 
WSGIScriptAlias / /some/path/site3_main/app.wsgi 


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