enable Xdebug with docker build stage and dc override

[lwillems]

Hello

To enable Xdebug just add a new stage to DockerFile and load override.
Original credits go to @dunglas with docker sf5 repo

Hope it could be useful.

Regards

[lchrusciel]

Hey Laurent,
thansk for your proposal. However, the build is red. I've restarted it.

[lwillems]

@lchrusciel
Build seems fail on php memory limit issue ?

[lchrusciel]

Hey Laurent, we need to wait for the green build of #436. After merging and rebase, we can move on.

[lwillems]

@lchrusciel i have fixed a typo issue breaking build with overidde, seems #436 merged ?
Regards

[lchrusciel]

Hey Laurent, the current issue is related to Docker itself: https://travis-ci.com/github/Sylius/Sylius-Standard/jobs/423497979#L2986

Have you tested the current build on your machine? Do you think, you could fix our build?

[lwillems]

Hey Laurent, the current issue is related to Docker itself: https://travis-ci.com/github/Sylius/Sylius-Standard/jobs/423497979#L2986

Have you tested the current build on your machine? Do you think, you could fix our build?

Hi @lchrusciel
After investigations
I think build fails for several reason but the most important one is composer version
Prestissimo package is locked to composer 1 and in your build you are using composer:latest (now is version 2 by default).
I have fixed it with latest version on docker hub : 2.0.4 (latest should do the job but locally it always pull 1.10 on my laptop), also upgraded to php 7.4 and replace prestissimo with flex as suggested by Dunglas in another PR.
Also there is differences between lock and json file, i have updated composer.lock file but there is conflict

Can you resolve conflict with my file (up to date) and relaunch build with latest changes ? it should work, on my local machine it's up and running.

Regards

[lchrusciel]

Done in separe PR, as I was not able to add something to your branch

[lchrusciel]

Hey Laurent,

it has been way too long since you received some feedback from us. Is there chance, to rebase this PR?

[Ferror]

@lwillems Thank you for your PR!

The PR contains also changed not related to Docker and Xdebug. We are more than happy to merge it, but without additional changes in symfony.lock, composer.lock and some of the Dockerfile changes.

[Ferror]

Created the development stage in: #781

What's left is to install and configure xdebug

[diimpp]

Xdebug increases load time for dev env drastically, so it shouldn't be added to sylius_php_dev stage. Idea with docker-compose.debug.yml looks good.