[Discuss] Potential Subject for BLU Meeting

[markw at mohawksoft.com]

I think it may be cool if there were a "deep dive" on virtualization *and*
containers.

(1) Brief discussion about what virtualization is
(2) VMware, HyperV, KVM/QEMU, and XEN, what the basic differences are.
(3) Deep dive on KVM/QEMU
 (3a) VirtIO
 (3b) Networking NAT, Bridge
 (3c) Utilities
(4) Brief discussion about containers
(5) LXC, Docker, Podman, and Kubernetes
(6) Deep dive on Podman
 (6a) namespaces
 (6b) Networking
 (6c) Mapping directories into containers
 (6d) Utilities
(7) Examples


The above would be a master class and probably have to be a collaborative
work, but VMs and containers are the foundations of cloud computing and
covering this stuff would be very helpful to anyone trying to wade through
this stuff.

> If we ignore containers, we've had the following meetings about VMs, I
> only
> looked back as far as 2009.
>
> April 2019 | Gnome Boxes
> July 2012 | The Virtual Desktop
> March 2012 | Red Hat Enterprise Virtualization Manager
> November 2009 | AMD-V: AMD64 virtualization extension
> October 2009 | Virtualization on the Desktop
> February 2009 | Virtualization Deep Dive Day
>
> A talk on the current status of VMs would be useful.
>
> I run a few VMs at home, but I don't run them on my desktop or laptop
> machines; I have a rackmount server I purchased on eBay with 32 GB of RAM
> and24 CPU cores, and I run kvm/quemu on it with CentOS 7 as the OS.
>
>
>
> On Sat, Oct 23, 2021 at 3:52 PM <markw at mohawksoft.com> wrote:
>
>> Containers are NOT a light weight vm. Processes in a container are
>> processes in the main system.
>>
>> Containers are essentially processes run in a chroot jail. The LXC stuff
>> in the linux kernel adds a lot of namespace isolation and tools for
>> containers, but in the end a process in a container are processes in
>> your
>> system.
>>
>> In a VM the hypervisor has a process ID, but all the processes in a VM
>> are
>> in the VM and not really exposed to the system.
>>
>> > We have had many meetings on vms and containers. Vms have been around
>> > since
>> > the 1970s. KVM has been in the mainline kernel since 2007. Containers
>> are
>> > a
>> > more lightweight vm.
>> >
>> > --
>> > Jerry Feldman <gaf.linux at gmail.com>
>> > Boston Linux and Unix http://www.blu.org
>> > PGP key id: 6F6BB6E7
>> > PGP Key fingerprint: 0EDC 2FF5 53A6 8EED 84D1  3050 5715 B88D 6F6
>> > B B6E7
>> >
>> > On Fri, Oct 22, 2021, 10:34 AM Edward <epp at sillydog.org> wrote:
>> >
>> >> Virtual Machines?
>> >>
>> >> I did a Google search on the BLU site for any past meetings
>> pertaining
>> >> to VM's and it found none.
>> >>
>> >>
>> >> _______________________________________________
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>> >>
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>>
>>
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>
>
> --
> John Abreau / Executive Director, Boston Linux & Unix
> Email: abreauj at gmail.com / WWW http://www.abreau.net / PGP-Key-ID
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