#List of running container
docker ps
# Login to container
docker exec -it <container> bash
#If bash is not available
docker exec -it <container> /bin/sh
# List of running services
docker service ls
# Restart a container
docker container restart <container>
#copy file to container
docker cp src <container>:destination
#load nginx config, or any command in container
docker container exec <container> nginx -s reload