I just changed the Docker-Compose to have the newest Version.
change image line to:
Run this commands onces
docker stop ROCKETCHATID
docker stop MONGODBID
docker rm rocketchat_rocketchat_1
docker network rm rocketchat_appcenter_net
docker network prune
docker-compose up -d
every time you want to updates rocket.chat
docker pull rocketchat/rocket.chat:latest
docker-compose up -d rocketchat
But then u cant use the UCS Appcenter Updater for rocket.chat anymore. You still keep the ldap/saml settings and settings in UMC.
Use on your own risk. But we were annoyed about the updates on with this solution we kept all data and are always up to date. We are running this solution abount 6 months now with no issues.
Edit: You also could just setup your rocket.chat via docker on your own but we liked the pre settings an possibility to enable the App on user import