Run docker as bridge mode instead of network mode

[junjizhi]

Currently docker-compose-dev.yml starts both container as network
mode, it doesn't work that nice because you have to find the ip for
the container to visit the new application. With bridge mode and port
forwarding, you can visit http://localhost:3000 to visit the app.

Screenshot attached

N/A

How to reproduze the user scenario

• docker-compose -f docker-compose-dev.yml up
• visit http://localhost:3000 and it's not available

[alexanmtz]

Merged and going to deploy @junjizhi, thanks! 🚀

[alexanmtz]

@junjizhi I had to undo the change in config/database.yml to allow connect to localhost if not using docker, cause db is not mapped. We need to find a way that will not affect a local env without docker

[junjizhi]

@alexanmtz you can edit your hosts file to point db to 127.0.0.1

[alexanmtz]

@junjizhi Let's try to figure out a way that don't require changes on hosts

[junjizhi]

localhost is just an entry in hosts to point to 127.0.0.1. If you remove that entry, your config/database.yml won't work even if it's pointing to localhost.

Pointing it to db, running the app in docker would just work. When running the app locally, they would see an db initialization error. We can document this in README. And I would expect devs are comfortable to edit hosts file.

An alternative is never run rails app in dev environment in Docker (which is super slow anyway). make a separate environment for docker and update config/database.yml. Only run dev in localhost. Having same configs for local and docker won't work unless we make the above tweaks.

[alexanmtz]

Yeah, I see @junjizhi , it is possible you create a pull request with this changes and I will approve this time? Including the changes on hosts?

Which OS you're using? Windows Mac or Linux?