How to prevent Minio MC to exit in docker compose - docker

Question

I use Minio and Minio/MC in my docker-compose as follows:
version: '3'
services:
minio:
image: minio/minio
command: server --address 0.0.0.0:9000 --console-address 0.0.0.0:9001 /data
volumes:
- minio-data:/data
expose:
- 9000
ports:
- "9001:9001"
environment:
MINIO_ROOT_USER: minio
MINIO_ROOT_PASSWORD: minio123
ready_minio:
image: minio/mc
env_file:
- ./envs/local.env
entrypoint: >
/bin/sh -c "
until (/usr/bin/mc config host add myminio http://minio:9000 minio minio123) do echo '...waiting...' &&
sleep 1;
done;
/usr/bin/mc alias set myminio http://minio:9000 minio minio123;
/usr/bin/mc admin user add myminio/ $${MINIO_ACCESS_KEY} $${MINIO_SECRET_KEY};
/usr/bin/mc admin policy set myminio/ readwrite user=$${MINIO_ACCESS_KEY};
/usr/bin/mc mb myminio/$${MINIO_MEDIA_FILES_BUCKET};
/usr/bin/mc policy set public myminio/$${MINIO_MEDIA_FILES_BUCKET};
exit 0;
"
depends_on:
- minio
volumes:
minio-data:
After all lines of entrypoint are executed, ready_minio container will be exited.
I want minio/mc to remain running after the execution of entrypoint commands is finished so that I can run other commands via docker exec -it ready_minio /bin/sh or something like that.
How can I do that?
Already tried ways:
I removed exit 0; from the last line of the entrypoint and this has not solved the problem.

Answer 1

If you want the container to continue running, then you need to provide a command that will not exit. A common option for "do nothing, forever" is the sleep inf command:
ready_minio:
image: minio/mc
env_file:
- ./envs/local.env
entrypoint: >
/bin/sh -c "
until (/usr/bin/mc config host add myminio http://minio:9000 minio minio123) do echo '...waiting...' &&
sleep 1;
done;
/usr/bin/mc alias set myminio http://minio:9000 minio minio123;
/usr/bin/mc admin user add myminio/ $${MINIO_ACCESS_KEY} $${MINIO_SECRET_KEY};
/usr/bin/mc admin policy set myminio/ readwrite user=$${MINIO_ACCESS_KEY};
/usr/bin/mc mb myminio/$${MINIO_MEDIA_FILES_BUCKET};
/usr/bin/mc policy set public myminio/$${MINIO_MEDIA_FILES_BUCKET};
exec sleep inf;
"