migrating from 2.7 to 3.x on Ubuntu

[Mike Dewhirst]

On the same host, is it viable to switch my Django projects away from
vhosts under Apache2/mod_wsgi/py2.7 to Gunicorn and Nginx running with
Python 3.x ...

AND SIMULTANEOUSLY

... leave Trac running on Apache2 mod_wsgi/py2.7?

Trac is not yet released for Python 3.x. There is also a Subversion
server running via Apache2 so it looks like I need to keep Apache2
anyway.  I also have Buildbot running under Python 2.7 on that machine
but it runs on Twisted so I expect that will be a regular migration.

As a bonus question,  if this is even possible, would you
do-release-upgrade Ubuntu 16.04 to 18.04 before or after such a migration.

Thanks for any sympathy as well as advice.

[Ryan Nowakowski]

Seems doable. I would leave nginx out of it and just run gunicorn Python 3 with Apache. Also I would do the release upgrade before.

[Mike Dewhirst]

On 8/03/2019 12:34 am, Ryan Nowakowski wrote:
> Seems doable. I would leave nginx out of it and just run gunicorn
> Python 3 with Apache. Also I would do the release upgrade before.

Thanks Ryan - that makes a lot of sense to me. Should simplify the
process and give me confidence to start sooner rather than later.

:)

Mike

>
> On March 4, 2019 10:40:21 PM CST, Mike Dewhirst
> <mi...@dewhirst.com.au> wrote:
>
> On the same host, is it viable to switch my Django projects away from
> vhosts under Apache2/mod_wsgi/py2.7 to Gunicorn and Nginx running with
> Python 3.x ...
>
> AND SIMULTANEOUSLY
>
> ... leave Trac running on Apache2 mod_wsgi/py2.7?
>
> Trac is not yet released for Python 3.x. There is also a Subversion
> server running via Apache2 so it looks like I need to keep Apache2
> anyway.  I also have Buildbot running under Python 2.7 on that machine
> but it runs on Twisted so I expect that will be a regular migration.
>
> As a bonus question,  if this is even possible, would you
> do-release-upgrade Ubuntu 16.04 to 18.04 before or after such a migration.
>
> Thanks for any sympathy as well as advice.
>

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