bofh wrote:
Is there *ANY* good virtualization software out there? I don't care what OS
it needs to host it (preferably not windows :)) - my needs are simple (home
use):
This doesn't answer your question or help you in any way, but I thought
I'd mention it for the list archives (with a nicely searchable subject).
A while back I was considering using some type of virtualization for
running 5 web servers on the same box. I ended up tossing the idea of
virtualization for a couple of reasons:
1) I couldn't really find any VM software I liked that ran nicely on
OpenBSD. I was not aware of qemu at the time, so no flames please. (I
didn't look all that hard, apparently.)
2) The performance hit you'll inevitably take. (Why I didn't look too
hard.)
There are probably many (better) ways to go about this, and I'd love to
hear them, but I ended up doing this:
- one OpenBSD box, with multiple IP address aliases
- one OpenBSD firewall, which rdr's external IPs to the appropriate web
server IP
- 5 chrooted OpenBSD default (1.3.29) Apache's (at this time, I have no
need for Apache 2, but hey, it's in ports.)
- 5 custom httpd.conf files for each
- 5 custom php.ini files for each (plus other related config file friends)
- 5 different httpd daemons for each (httpd0-4), just in case
- virtual aliases with Apache is not a solution because the sites use
https/ssl
- all the sites have all the php-*, pear-*, mod_* stuff at their disposal
I did have to change /etc/rc (I know, I'm a sinner) so it did it's
normal things, but slightly adjusted for each of the 5 servers.
I run a single instance each of chrooted MySQL and PostgreSQL servers,
which the various sites can access by IP as their own restricted
database users.
I considered using FreeBSD's jail functionality, but the drawbacks were
thus:
1) for the time it would take to learn about configuring FreeBSD's
jails, I could do the stuff above many times over.
2) I wouldn't get the OpenBSD version of httpd that has much love from
the team (tx henning@ and others).
I'm probably forgetting details, since it's been a while since I did
it. The end result works just fine for *my* needs, and best of all it's
still on my OS of choice so well within my comfort zone. I haven't a
clue how this would scale for a web hosting provider, but then again,
that's not my problem. :)
Sorry for the noise. I once searched for this a long time ago and
didn't find anything, so for future reference, yes, it's easily doable.
PS: I'm dying for the day that relayd handles https too. :)
--
-RSM
http://www.erratic.ca
