this post was submitted on 03 Aug 2023
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If it won’t work in a docker container, I need a real server anyway.
I keep seeing Docker being mentioned everywhere, but I can't seem to figure out what it is.
maybe I'm just dumb or my Google Fu isn't as good as I thought, but can you offer an explanation? is it just virtualization software?
Docker isn't virtualization. It's a way of packaging applications, their dependencies and configuration. Docker containers can be run together or segregated based on configuration. Essential in much modern software- no more this dependency for x clashes with that dependency for y / 'works on my machine' / I can't install that version.
The containers share a host Linux kernel (which is virtualized on non Linux systems). Docker runs fine on ARM but only using arm containers. It's tricky to run x86_64 containers on an arm host, especially with a different OS
X86_64 containers run just fine on my m2 Mac. Since macOS doesn’t really support containers, it’s really just running a vm to run the containers in. Changing the vm allows you to run a different arch. Rosetta makes that fairly easy. I use Colima to run my containers, and to make them run as x86_64 it’s just a command line flag