If I install Apps from Marketplace while having rocketchat server running on docker where these apps are stored and will they persist after updating docker image?
If I have several rocketchat servers for High availability? do I need to Install apps on each server?
With HA then you only have one DB (that might be load balanced as well, but it should be seamless I think - so again it should persist) so no, you don’t need multiple versions (your users only see one server…)
There is an internal discussion as to whether these should be moved or not, but this is the current status.