Useful functions and aliases for Docker

.bash_profile

# Open shell to a Docker Compose service container:
# use like: dsh            # open shell to 'app' service (container name like project_app_1)
#           dsh db         # open shell to 'db' service
function dsh() {
    DEFAULT_SERVICE=app
    docker exec -it $(docker-compose ps -q ${1:-$DEFAULT_SERVICE}) sh
}