Should really Dockerfile apply migrations?

[StreakyCobra]

raposfly/services/backend/Dockerfile

Line 45 in 60dc189

RUN python manage.py migrate

Not sure Dockerfile should apply migrations.

[johnrlive]

What are the disadvantages of having docker apply the migrations?

[StreakyCobra]

When a person builds a docker container, he probably think of it has a safe operation that does not modify stuffs outside the container. Now if for any reason the code is modified to connect to an online database, running the migrate command will migrate and modify the online database. This can be dangerous at it may be used by another raposfly instance running in production for example, and people will not think of it as a side effect when running docker build.

I think the migration should be handled in another way, I'm not sure which one yet, but I'll think about it.