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> pretend that they are fully separate from the host node OS No! You can see all processes of the OpenVZ and jails from the host system >in fact if you are ru
by betaby 10y ago
> pretend that they are fully separate from the host node OS
No! You can see all processes of the OpenVZ and jails from the host system
>in fact if you are running Apache on your host system and try to run a Dockerized web server on port 80 the Docker
container might refuse to start
depends on network options.
- patrickg_zill 10y agoSorry for not being clear ... the OpenVZ, LXC, Zones (not sure about Jails) all have their own startup options, and if they don't start "init" as the first process inside, then they have a method that fakes it. You can install random new packages of software and run them, from inside the "VM" - from what I know, you can't do this from within a container. FWIW using KVM all you can see from the host node (unless you use debugging tools) is the PID and related process info of the KVM instance (one process per VM you have started).
- cthalupa 10y ago>- from what I know, you can't do this from within a container. You most certainly can.
- AstralStorm 10y agoYou can easily run top inside Xen VM via xl console. Or via SSH. Manage it with a stack like salt or ansible. This is a super weak argument.
- patrickg_zill 10y agoHm, that isn't what I am trying to say at all. In drawing a distinction, some of the virtualization tech acts like a full blown OS in and of itself, while others do not. x