I don’t think you should move unless you expect your company will expand a lot. It seems like your scale is fairly modest, your setup works and users are happy. So it’s probably fine.
Advanced orchestration systems like kubernetes are very valuable if you want to do multiple deployments in the same day, across many different services, without losing your mind. It lets you move very very quickly... the time to build a docker container, push it up to a registry and switch your deployment to start using the updated version is ridiculously simple.
So it depends on what kind of shop you are and what your devs want. If they like to iterate rapidly, containers and kubernetes is a well known path to get there.
Advanced orchestration systems like kubernetes are very valuable if you want to do multiple deployments in the same day, across many different services, without losing your mind. It lets you move very very quickly... the time to build a docker container, push it up to a registry and switch your deployment to start using the updated version is ridiculously simple.
So it depends on what kind of shop you are and what your devs want. If they like to iterate rapidly, containers and kubernetes is a well known path to get there.