C2: Insanely Affordable x86-64 Servers
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@aaronstuder said:
I guess I could install Xen on top of Ubuntu?
Ubuntu will allow a Xen install, but it will move Xen to be what runs on the bare metal. So they may limit you. These often do by controlling the kernel.
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I want to be able to have a bunch of 512MB CentOS7 servers.....
Can anyone think of a good way to do that?
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@aaronstuder said:
I want to be able to have a bunch of 512MB CentOS7 servers.....
Can anyone think of a good way to do that?
A bunch? Like how many? Ten, one hundred? What's the end goal? What storage and CPU do you want or need?
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@scottalanmiller I use very little CPU or Harddrive Space. What I need is RAM
I was thinking about 15 - 20 VMs
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Basically a hosted home lab
Basic Web Server
OwnCloud
JumpboxEtc
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@aaronstuder said:
Basically a hosted home lab
Basic Web Server
OwnCloud
JumpboxEtc
Well. Let's use 20VMs. If you are talking $5 instances, that's going to be $100/mo. You could buy a small server and go to colo for that price.
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For cost effective, a box at home is the best, obviously.
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If you don't want VMs, containers are lighter and faster. So pretty much any system where you can run LXC will do nicely.
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@scottalanmiller said:
If you don't want VMs, containers are lighter and faster. So pretty much any system where you can run LXC will do nicely.
Yup. Exactly what I do on Vultr, and I have a VM at home for LXC. XO runs in LXC and when a new version comes out, Ansible clones it and updates it for me but leaves the old container. I don't have to do any work at all. Then if a bug happens like the recent backup to NFS bug, I just use the old container.
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LXC or LXD?
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With containers I might not need nearly as much RAM
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@scottalanmiller said:
@aaronstuder said:
LXC or LXD?
LXD is an LXC interface.
Ubuntu is working on live migration with LXD. That will be awesome.
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That will be awesome! How do you backup containers?
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@aaronstuder said:
That will be awesome! How do you backup containers?
Just tar the container folder. You can also do file level backups of the containers. LXC by default stores everything in
/var/lib/lxc/so if you want to restore a file tocontainer1you could just cp it back to/var/lib/lxc/container1/root/pathtofolder/ -
@johnhooks Can I do that with the containers running?
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Can I run different Distros in containers or just the same as the host?
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@aaronstuder said:
@johnhooks Can I do that with the containers running?
Which file level restore or using tar?
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@aaronstuder said:
Can I run different Distros in containers or just the same as the host?
You can run different distros. But I think you need to match systemd and init between host and container though.
