Is chroot an example of application virtualization in Linux?

Question

I am not very certain about the concept of Application/Process Virtualization.

To help with that, what are some examples of application virtualization in Linux? (https://en.wikipedia.org/wiki/Application_virtualization#Description gives several examples of application virtualization in Windows.)

Is chroot such an example?

Are cgroup, namespace, and docker such examples? If not, why?

Thanks.

Your first link is broken. – ctrl-alt-delor Apr 06 '19 at 12:51 — ctrl-alt-delor, Apr 06 '19 at 12:51
Another possible duplicate – RubberStamp Apr 06 '19 at 13:40 — RubberStamp, Apr 06 '19 at 13:40

score 2 · Answer 1 · edited Jun 11 '20 at 14:16

2

Yes and no.

No

Docker is not virtualisation: It uses namespaces, chroot, cgroups, etc; docker adds no extra virtualisation on top of Linux. Therefore: as docker uses chroot, and is not virtualisation, then chroot is also not virtualisation. However is can be used for the same things.

This all depends on definitions, if virtualisation is how it works, then no, if it is what it dose then sort of.

Yes

Unix including Gnu/Linux is a type of virtualisation (As is Microsoft's NT): The OS visualises the hardware. Each process gets to run as if on a dedicated hardware. (Plus inter-process communication etc.)

edited Jun 11 '20 at 14:16

Community

1

answered Apr 06 '19 at 12:50

ctrl-alt-delor

27,993

@rubberstamp, yes you can edit. I was being a bit sarcastic, as Tim knows this. – ctrl-alt-delor Apr 06 '19 at 15:01
"Therefore as docker uses chroot, and is not then chroot is not" There must be some typo or grammar error… – 炸鱼薯条德里克 Apr 07 '19 at 00:30
I think the grammar is OK, but I have improved it, as it was a bit hard to understand (two implied words, may be hard no understand my English as a second language people). – ctrl-alt-delor Apr 07 '19 at 09:38

Is chroot an example of application virtualization in Linux?

1 Answers1

No

Yes

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