[python-uk] Suggestions / best practices for deployment

[Stestagg]

To add a slightly different angle to this, whatever deployment solution you
use, make sure it is fully automated, and then hook it into you CI system.

Deployment, disaster recovery etc. are made so much simpler if you're
thinking about it from the start rather than just before release.  One way
to enforce this is to start running the process regularly.

My personal preference for this is to use snapshotted virtualbox VMs to
deploy the service/app to a clean OS install, and the run the tests, after
every commit (or on a schedule).  This way, you always know what
dependencies you need, and you're forced to make things as seamless as
possible.

The same goes for testing upgrades.  Set up a VM with version X and set up
a job to:  Upgrade > Test > Check > Rollback regularly.

Thanks

Steve




On Wed, May 15, 2013 at 12:19 PM, Muhammad Rahman <
muhammad.rahman at tangentlabs.co.uk> wrote:

>  Hi Harry,
>
> I would use salt(http://docs.saltstack.com/index.html) for provisioning
> and keep the python specific package to fabric to deploy using pip.
>
> Even though salt is able to deploy pip requirements but I think this
> separation is important.
>
> Mustafiz.
>
>
> On 15/05/2013 11:34, George Hickman wrote:
>
>  Hi Harry,
>
>  I use two methods for deployment - Heroku and Ubuntu VPSs.
>
>  Heroku is really simple to get going but gets expensive if you want to
> run a serious production app. However it's probably what I'd recommend for
> beginners since so much is done for you and they have first class python
> support.
>
>  For VPS deploys I use Nginx, Daemontools (for the envdir package),
> Supervisor, Gunicorn and Postgres (with Django). I usually deploy this
> setup with a mixture of Salt to build the VPS and Fabric to deploy the code.
>
>  George
>
>
> On Wed, May 15, 2013 at 10:57 AM, Harry Percival <harry.percival at gmail.com
> > wrote:
>
>>  Dear UK Python chums,
>>
>>  some of you probably know I'm writing a book about TDD for O'Reilly.
>> I'm looking for some help with the (first) chapter on deployment.
>>
>> http://www.obeythetestinggoat.com/what-to-say-about-deployment.html
>>
>>  What do you use for deployment?  Do you have any kind of automated
>> scripts? How do you manage virtualenvs, the database, apache/uwsgi
>> config... What do you think might work as a sort of "best practice lite"
>> for a simple site for beginners?  (django, sqlite database, static files)
>>
>> --
>> ------------------------------
>> Harry J.W. Percival
>> ------------------------------
>> Twitter: @hjwp
>> Mobile:  +44 (0) 78877 02511 <%2B44%20%280%29%2078877%2002511>
>> Skype:         harry.percival
>>
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>>
>>
>
>
> _______________________________________________
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>
>
> --
>
> Muhammad Rahman
> Developer
>
> Tangent Labs
> 84 - 86 Great Portland Street
> London, W1W 7NR
>
> T:  +44 (0)207 462 6150 (Office)
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>
>
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