How to fix/set rancher container name deployed by deploying stack template

Hi everybody!

My problem is simple. I have to play a docker-compose with a yml file (instances.yml) to generate certificates for 5 containers : 3 ES + 1 Kibana + 1 logstash.
This compose file (instances.yml) have to know container name before deploying stack to populate a docker volumes with certificate.

And when you deploy Rancher template container name $name is formated as : r-$PROJECT-$name-1-$UID

Then instances.yml must contain the real name!

    - name: r-${PROJECT}-es01-1-$UID
        - es01

But we don’t know (as I knew) $UID before deploying!

Tks in advance