[389-users] in docker-compose.yaml use "dsconf localhost***" error

Hello

   I want to ask a question with using 389ds/dirsrv 389 Directory Server Container in dockerhub

When I create 389ds database ,I use dsconf localhost backend create *** command,it is OK

 

Now , I want to use docker-compose.yaml to start container,I set parameter like this :

command: /bin/bash -c "sleep 20 && dsconf localhost backend create ****",but the error is as follows:

Error: Could not find configuration for instance: localhost

Thank you for reply