Ahmed Kamal wrote:
Hi everyone,
Thanks for contacting with us, Ahmed.
This is Ahmed, I work for Ubuntu helping the cloud
community. Ubuntu has
been working on some hot technology, that aims to be "apt-get for the
cloud"! Basically Install and manage large scale cloud deployments of
web applications (and others) with the equivalent ease of "apt-get
install". The reason I'm posting this here, is because the very first
use-case for this technology (called Ensemble) has been MediaWiki (yaay)!
To get a feel for Ensemble, here is how you'd deploy a 4 machine
Mediawiki installation
DB -> MediaWiki -> memcached -> HAproxy Loadbalancer
----->8---------
# Deploy machines
ensemble deploy mysql wiki-db
ensemble deploy mediawiki demo-wiki
ensemble deploy memcached wiki-cache
ensemble deploy haproxy wiki-balancer
# Connect them together!
ensemble add-relation wiki-db demo-wiki:db
ensemble add-relation wiki-cache demo-wiki
ensemble add-relation wiki-balancer:reverseproxy demo-wiki:website
----->8---------
Slashdotted? Want to scale out? You'd need something like
ensemble add-unit wiki-cache
ensemble add-unit demo-wiki
Yes, it's that easy!
Well, you still need to know that you need 4 machines and what is each
of them.
I first got confused thinking that they were packages on a single machine.
So, when you add a second demo-wiki, how is the second mediawiki
configured? A simple copy ? How are further changes synced?
What about optional packages? If you are installing for a large scale
cloud deployment of mediawiki you probably also want php-apc, or
wikidiff2 extension.
I see you are creating your own LocalSettings.php, but the way you are
installing it is really ugly. I advance you that it will break in the
new installer of MediaWiki 1.17 You will have an install.php cli script
there, though.
(i have to admit, it is really the fault of ubuntu package that it
doesn't create the database or thatit leaves the tables broken on update)
I recommend you to plan and test with 1.17 and tell us if you need some
additional feature. It still could enter in the release, if it's simple
enough.
http://svn.wikimedia.org/svnroot/mediawiki/branches/REL1_17/phase3/
Cheers