Just a note that as a newish contributor to Django, this django-docker-box 
is fantastic, it makes things much easier to setup. 

Thank you to everyone involved!

On Wednesday, 5 December 2018 00:02:27 UTC, Tom Forbes wrote:
>
> To have this completely working at sprints without having everyone 
> building their own local images we would need to have the Jenkins server 
> use docker in some capacity. This would also require an official django 
> account on Docker hub.
>
> The pattern I’m using right now is that on every build we pull the 
> django-ci:latest image (from my personal account). Docker uses this image 
> as a cache automatically (preventing rebuilds). On any successful master 
> build we push the new image to docker-hub, so subsequent builds can utilise 
> it.
>
> Then anyone wanting to speed up their bootstrapping can do docker-compose 
> pull and automatically have the latest image available for running right 
> away. We can make this smaller, for sure, but we can also suggest people 
> download this beforehand (i.e at their hotel).
>
> I don’t know how feasible this is but it’s also very easy to run a caching 
> docker mirror (docker run -p 5000:5000 registry). Organizers could run 
> this at large events and configuring docker to use a local mirror on the 
> network is a one-line change for atendees.
>
>
>
>
> On 4 December 2018 at 23:52:42, Josh Smeaton (josh....@gmail.com 
> <javascript:>) wrote:
>
> Size of the image could definitely be a concern, especially at sprints 
> where wifi speeds aren't always optimal. The django-box image is 
> significantly larger though so it'd still be a net win. There are also 
> optimisations that can be made to the image for reducing size over time, so 
> I'd fully expect it to come down. I've spent a little bit of time trying to 
> optimise a $work$ python docker file, I'll provide what I've got as an 
> issue to possibly look at. 
>
> I see that the ticket has been accepted and I think that's a great step 
> forward. I'd also like to hear from the infrastructure team what their 
> thoughts on using docker over customised build environments would be.
>
> Florian, Tim, Markus .. any thoughts? (Apologies, I've missed some, this 
> list of names is from memory).
>
> On Wednesday, 5 December 2018 10:39:16 UTC+11, Tom Forbes wrote: 
>>
>> Thank you for the reply Josh. I didn’t anticipate any suggestions for 
>> including this inside core but off the back of your suggestion I’ve made a 
>> ticket here: https://code.djangoproject.com/ticket/30010.
>>
>> I don’t think it should be complex at all to include this inside Django - 
>> it’s four or five new files at most. Hopefully this should improve the 
>> experience at sprints, however the current Dockerfile weighs in at 650+mb 
>> so the problem may switch from ‘it is hard to set up an environment’ to ‘it 
>> is hard to download one’!
>>
>>
>>
>> On 5 November 2018 at 23:02:30, Josh Smeaton (josh.s...@gmail.com) wrote:
>>
>> I'm sorry I haven't had the time to review or contribute yet, but I think 
>> it'll be a very useful project - especially for new contributors that might 
>> have a little docker experience. The current vagrant solution is heavy, 
>> does not work properly on windows and some linuxes, and isn't that easy to 
>> maintain or deploy. I'd be in favour of adding the docker files directly to 
>> django/django to minimise setup burden (DJANGO_PATH), and improving the 
>> contributing docs to show users how to test using docker. 
>>
>> One of the hardest things I found at sprints was getting development 
>> environments setup to effectively contribute - even using the docker-box 
>> project which I understand quite well. Anything we can do to improve that 
>> situation will be very beneficial.
>>
>> I have fewer opinions about the official CI story, hopefully some of the 
>> infrastructure team can comment more on that. I think that replacing the 
>> ansible roles with a docker setup can have some definite improvements and 
>> open up CI tasks to a larger pool of people (anyone that can edit docker 
>> files), but it'd come with maintaining the host that runs docker (cleaning 
>> up images, dealing with disk space issues, etc).
>>
>>
>> On Monday, 5 November 2018 01:20:03 UTC+11, Tom Forbes wrote: 
>>>
>>> Hello all,
>>>
>>> I’ve been working on a docker-compose based alternative to django-box 
>>> (imaginatively named django-docker-box) over the last month and it 
>>> finally appears to be mostly complete.
>>>
>>> For reference the tool is just a Dockerfile and a docker-compose 
>>> definition that is able to run a complete test matrix of every supported 
>>> Python and DB version. It’s as simple as docker-compose run sqlite. You 
>>> can see a full test run (excluding oracle) here: 
>>> https://travis-ci.com/orf/django-docker-box/builds/90167436
>>>
>>> Florian suggested I create a thread here to gather feedback and discuss 
>>> any potential future directions for the project, so here goes:
>>>
>>> Firstly I’d like to know if there is any support for moving this under 
>>> the Django project itself, maybe even as a replacement for django-box? I 
>>> think the setup is pretty quick compared to django-box and is more flexible 
>>> in terms of database version support as well as working with Oracle. I’d 
>>> also really like some help improving Oracle support if anyone has the time!
>>>
>>> Secondly is there any support for integrating this with our current 
>>> Jenkins setup? I think it would be pretty neat to have parity between what 
>>> runs on the CI and what we can run locally and have any improvements shared 
>>> between both. Perhaps a full matrix run (which right now is 66 different 
>>> environments) is out of the question but a smaller subset could be good?
>>>
>>> Thirdly, and this is a bit wild, but what about using this to reduce the 
>>> burden of running Jenkins by running the tests on a managed CI service like 
>>> Travis CI? We would likely still need Jenkins due to issues with Oracle and 
>>> running tests on Windows (unless 
>>> https://github.com/django/django/pull/10259 works with Docker!), but we 
>>> could offload some of the environments onto a third party service. Travis 
>>> gives large OS projects like Django increased concurrency limits on their 
>>> accounts so we could end up with pretty speedy test runs. Also with 
>>> docker-compose switching between CI services (including Jenkins) would be 
>>> very simple.
>>>
>>> The repo is here: https://github.com/orf/django-docker-box.
>>>
>>> Any feedback on these points or the project itself would be greatly 
>>> appreciated,
>>>
>>> Tom
>>>
>>>
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