Interact with Ruby Padrino console through Entrypoint command in docker-compose - ruby

Question

I am trying to start up a Padrino console (similar to Rails console).
Here's my ENTRYPOINT command in Dockerfile
ENTRYPOINT /usr/src/app/docker-entrypoint.sh
I want to start the console when the env variable value is $CONSOLE = Y
Here's the docker-entrypoint.sh script
if [ "$CONSOLE" = "Y" ];
then
echo "Starting Padrino console"
bundle exec padrino console
else
#something else
fi
However, when I run docker-compose up with environment variable CONSOLE = Y, the console begins to start but ends with Switch to Inspect mode. I tried a lot of solutions online, and while docker-compose exec <container-name> bundle exec padrino console might work, it exceeds the memory and kills both the console process and the server running on the container.
How can I just start the console in the docker-compose up command?
EDIT
Here's my docker-compose.yml file
version: '3'
services:
app:
build: .
volumes:
- .:/usr/src/app
ports:
- "36081:36081"
restart: always
depends_on:
<other-services>
container_name: application
environment:
- MIGRATE=$MIGRATE
- CONSOLE=$CONSOLE
<other-services>

Answer 1

So according to this issue, you can not allocate tty in docker-compose because it starts multiple containers.
That is expected behaviour. up is not interactive. It can start
multiple containers, so you can't have a single terminal that has
stdin open for multiple containers.
as there is single service in your docker-compose so you can try with run command instead of up
docker-compose run app
or the other option is to start all the container then run with docker attach
but first, you need
docker-compose -d
then
docker attach container_name
you might need tty flag to true as well
version: '3'
services:
app:
build: .
tty: true