rails db:migrate only works in development mode

[kohheepeace]

Issue

By default in rails,

commands like rails db:create or rails db:migrate are supposed to work in both devlopment and test environments,

but It doesn't work that way on gitpod.

# this create only development database in gitpod
rails db:create

# we need to set RAILS_ENV=test
rails db:create RAILS_ENV=test

Current Possible Causes

This is supposed to be caused because gitpod sets ENV["DATABASE_URL"].

(*In the local development, ENV["DATABASE_URL"] is nil. This is why both development and test migrates are executed correctly at local).

https://github.com/rails/rails/pull/39027/files

Solutions for this issue

I have not yet found a solution for this. I can't set or unset ENV["DATABASE_URL"] on gitpod.

Discussion about current behavior

I want to run rails db:migrate for both development and test environment, but there seems to be a lot of support for current behavior.