Run migrations on Docker Production

[dimitarvp]

@gmc

I haven’t figured out how to change my Dockerfile to run migrations automatically after the firing up the server using “docker-compose up”

I haven’t checked but at least if you want docker run ... to “automatically” run a command then you do it e.g. like this:

# ...

ENV MIX_ENV=prod
RUN mix deps.get
RUN mix deps.compile
RUN mix compile
RUN mix release

CMD _build/prod/rel/<project>/bin/<project> eval "YourMigratorToolsModule.migrate()"

docker build ... will build everything except the final CMD whereas docker run ... will only run the last CMD, if memory serves.

But I am not sure if that even relates to doing docker-compose up. Maybe it doesn’t, haven’t checked.