Eclipse + Pydev + Docker - need suggestions

[Kiran Subbaraman]

Hello,
I need some help with understanding the best way to use Pydev with Eclipse, for web2py applications development.
I have been working with web2py for the past year, and use the tools mentioned above for this purpose. Am trying to refine my understanding of this toolset, and if there is something more that can be done to improve the experience.

I use Eclipse IDE (Luna Service Release 2 - 4.4.2), with Pydev (4.3.0.201508182223), on Windows (10.0.10240), as my web2py development environment.

Sorting out web2py imports
I was looking at the documentation: http://web2py.com/books/default/chapter/29/14/other-recipes#Using-general-purpose-IDEs-with-web2py. Went ahead and added the code to resolve imports:

if False:
    from gluon import *
    request = current.request
    response = current.response
    session = current.session
    cache = current.cache
    T = current.T

...It is probably wise to remove the import of the gluon debug module. Also, to do this you should make the pydev project the web2py directory, not your specific application.

PyDev's git integration copes with this; it supports multiple git repositories inside the one project directory structure.

I didn't quite understand what this means? It seems to suggest a means to debug applications from within Eclipse; can anyone elaborate on how to get this done. I can test it out, and contribute to improving the documentation.

Applications outside of web2py
I also noticed this response from Massimo:

Actually the web2py applications/ folder is not required to be under the the web2py folder..

https://groups.google.com/d/msg/web2py/wi25qItKDEo/w-RbzvykRfcJ
So, I need to create a web2py/options.py, which has the property

folders = /web2py_applications #docker volume, for example

This will help me create web2py docker-containers, which point to my applications code outside of the containers. The applications themselves are in a git repository. Is this a setup that anyone has tried out before. I noticed this thread by Massimo, but that was inconclusive: https://groups.google.com/forum/#!searchin/web2py/docker/web2py/XhrfaYX00dg/6koPFbJWfNYJ
Any suggestions?

Thanks,
Kiran

[Richard Vézina]

Hi Kiran,

Just about having web2py app outside of web2py folder and docker... I think what you want to achieve goes against the idea of containerization... Why not deploy you app inside your container (as you will do if you host your app somewhere for instance, in this case your host is your container) instead of trying to make your container work with something from the outside...

Richard

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[Kiran Subbaraman]

Richard,
Good point, but then I want to capture the state of my application outside of the infrastructure I need to run it in.
This will mean that if the web2py server container goes down, for whatever reason, I can spin up another container, and it will continue from where the previous one left off (or that is something am aiming for).
My application, and its data is managed as a simple volume (with necessary replication).
I do not know how this will behave if two web2py containers try to use this volume. Again, there are quite a few things I have not explored, but intend to.
Was looking for experiences with Docker based web2py deploys, and best practices that the community has evolved.

________________________________________
Kiran Subbaraman
http://subbaraman.wordpress.com/about/