BLT + Docker + Custom Docroot

[sylus]

Hi there ^_^. First off I really appreciate this project and am actively looking at moving some of my project over to BLT just to simplify developer workflow around a common standard. Before I give some background information to my questions I provided them below:

Questions

1. Do you see any potential issues with me using Docker with BLT?
2. My install profiles extend from Lightning and the docroot is /html for my install profile yet I am seeing it is mandatory to be docroot?

Background

I have a hard requirement around using Docker for my development + CI workflow. This is because thanks to Docker Registry Proxy Caching + GitLab CI I can instantiate my infrastructure in O(1) time and the workflow is incredible easy to switch between Docker Machines / Drupal environments etc. The biggest factor is we have a configured GitLab CI runner already configured with this workflow and total test times around 5-8 minutes for everything.

eval $(docker-machine env site-open-data)   
eval $(docker-machine env site-wxt)

Drupal Scaffold for Docker

https://github.com/drupal-composer-ext/drupal-scaffold-docker (Main Page)
https://github.com/drupal-composer-ext/drupal-scaffold-docker/blob/8.x/template/docker/README.md (Documentation)

I have created a composer plugin (above) that simply parses a Drupal Composer Project's composer.json file and creates a Docker scaffold around that. All the logic is contained in an added docker folder and no real adjustments are made to a Drupal Composer project other then the added controller files. The composer.json helps with the org / repo name interpolation of scaffolded Dockerfiles + and also assists in profile + docroot detection which will get written as well when the scaffold is created.

Implementations

Currently there are two public GitHub projects using this Docker workflow as well as a few private ones:

• site-wxt (notice extra docker folder + 5 controller files)
• site-open-data (notice extra docker folder + 5 controller files)

Tests can be accessed via Travis CI and are simply leveraging docker-compose to instantiate the infrastructure.

• site-wxt
• site-open-data

[grasmash]

Do you see any potential issues with me using Docker with BLT?

Frankly I don't have much experience with Docker, but BLT is designed to be LAMP-stack agnostic, so I would not expect any issues. The LAMP requirements are essentially just the same requirements as Drupal itself.

My install profiles extend from Lightning and the docroot is /html for that install profile yet I am seeing it is mandatory to be docroot? Both can't be true?

I think you can probably just symlink docroot to html and have things work. Just make sure the symlink is relative so that it resolves regardless of filesystem.

Your https://github.com/drupal-composer-ext/drupal-scaffold-docker project sounds pretty cool!

[sylus]

Thank you so much @grasmash I really appreciate you taking the time to respond. :)

Additionally that is exactly what I was hoping to hear!

Hopefully I can return the favor one day once I get up to speed on BLT.

Thanks again!