Re:Solaris to Linux Migration 2017
by yellowapple on Tuesday September 05, 2017 @07:13PM
(#15179856)
Does SmartOS actually support Linux containers (aside from the obvious approach of running containers in a Linux VM)? Last I checked, SmartOS just used the word "container" to refer to Solaris Zones.
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SmartOS has code specifically in place for using 'lx' branded zones as wrappers for docker containers (which is distinct from its support of kvm)
https://github.com/joyent/smartos-live/blob/master/src/docke...
https://www.cruwe.de/2016/01/27/using-docker-on-smartos-hype...
It's been a while since I've looked in to it, but if memory serves they are using docker filesystem snapshots without modification and running them on a thin translation layer of Linux system calls to Solaris system calls. Hard to find anything backing this up, so I could be way off the mark as to how it's implemented.
EDIT: forgot that's what 'lx' zones are: zones which allow the execution of Linux binaries