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A comment on Kubernetes Home – what do you do if your ISP changes your IP addresses?. Parent comment

Re:Kubernetes Home – what do you do if your ISP changes your... by anonfordays on Tuesday March 11, 2025 @01:14PM (#43334756)
>That isn't even true

You are incorrect, this is true:

"OS-level virtualization is an operating system (OS) virtualization paradigm in which the kernel allows the existence of multiple isolated user space instances, including containers (LXC, Solaris Containers, AIX WPARs, HP-UX SRP Containers, Docker, Podman)..."[0].

>you share your host kernel

Kernel != OS

>There are parts of the kernel that aren't namespaced as well. The kernel keyring is probably the big one.

Immaterial.

[0] https://en.m.wikipedia.org/wiki/OS-level_virtualization

[ Parent | on HN ]
Re:Kubernetes Home – what do you do if your ISP changes your... by Spivak on Tuesday March 11, 2025 @01:23PM (#43334853)
You can call it what you want but absolutely no one considers chroot virtualization in any meaningful sense. Nothing is being virtualized, containers are just regular processes on the host system.

"OS Virtualization" != "OS" "Virtualization"

[ Parent | on HN ]
Re:Kubernetes Home – what do you do if your ISP changes your... by TZubiri on Tuesday March 11, 2025 @06:26PM (#43337775)
1st of all yes, many people consider not only chroot to be virtualization (of the file system). Yes it is arguable as it is the birth of lightweight virtualization. But you were wrong in saying no one does.

https://papers.freebsd.org/2000/phk-jails/

https://youtu.be/hgN8pCMLI2U?si=CH-Fpyj16bEWDZzc

2nd containers go farther and virtualize network, and other resources.

[ Parent | on HN ]
Re:Kubernetes Home – what do you do if your ISP changes your... by anonfordays on Wednesday March 12, 2025 @12:57PM (#43345245)
>You can call it what you want

I call it as it is.

>but absolutely no one considers chroot virtualization in any meaningful sense.

Absolutely everyone who's knowledgable in virtualization considers chroot to be a type of OS-level virtualization.

>Nothing is being virtualized, containers are just regular processes on the host system.

Wrong, "...OS-level virtualization is an operating system (OS) virtualization paradigm in which the kernel allows the existence of multiple isolated user space instances..."

"OS Virtualization" == "OS " + "Virtualization"

[ Parent | on HN ]