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Not OP, but, seriously asking, why should I? I usually still use VMs for every app i need. Much more work I assume, but besides saving time (and some overhead and mayve performance) what would I gain from docker or other containers?
Reproducability.
Once you've built the Dockerfile or compose file for your container, it's trivial to spin it up on another machine later. It's no longer bound to the specific VM and OS configuration you've built your service on top of and you can easily migrate containers or move them around.
But that's possible with a vm too. Or am I missing something here?
If you update your OS, it could happen that a changed dependency breaks your app. This wouldn't happen with docker, as every dependency is shipped with the application in the container.
Ah okay. So it's like an escape from dependancy-hell... Thanks.