this post was submitted on 24 Mar 2024
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Doesn't the vm produce an overhead? More power consumption and it can't use the full capabilities of the machine?
There are many benefits to VMs. You can limit how much RAM is available to each one, so one app doesn't eat all of your RAM. Same with CPU. Virtual Machines can be backed up, uploaded to remote storage, and restored. When it's time to do a big update on your main machine (either changing OS or getting new hardware), restoring VM's is super simple compared to the alternative.
You can limit them in docker as well
https://phoenixnap.com/kb/docker-memory-and-cpu-limit You can spin up the same container on another machine with one command.
Docker seems to be easier, not?
Can run multiple different os's - I have truenas, windows server, Ubuntu server for docker, etc