Re: [gentoo-embedded] virtual server profile

[Ed W <lists@wildgooses.com>]

On 23/12/2010 11:17, Arkadi Shishlov wrote:
> On 12/21/10 16:58, Ed W wrote:
>> However, if that developer/administrator is available, then Gentoo is a
>> marvellous solution for quickly building few MB custom solution, or a 60MB
>> virtual server base installation, or whatever other customised environment you
>> desire?
> Do you have such a setup for virtual server or, maybe, openvpz/vserver? ie.
> profile/make.conf/install masks/whatever ready for public consumption you can share?

Sorry, missed your email

OK, I create

     /usr/local/portage/profiles/my-hardened/

this has a file "parent" which contains: 
../../../../portage/profiles/hardened/linux/amd64/10.0

Then simply create any overrides for completely global defaults and keywords

I then create various subdirectories:

     vserver-host: this holds the generic host config
     vserver-guest: this is the base for the various guest configs 
(over-rides for all guests go here)

In the vserver-guest I create more directories per vserver type, eg:

     vserver-guest/
     vserver-guest/proxy
     vserver-guest/no-multilib
     vserver-guest/www
     vserver-guest/www/apache2
     vserver-guest/www/nginx
     vserver-guest/mysql
     vserver-guest/fs
     vserver-guest/dns
     vserver-guest/glusterfs
     vserver-guest/mail


The main thing to remember is that you need a "parent" file containing 
".." in each and every directory or else you just failed to inherit from 
the top level profile.  However, after that just customise what you need 
for each guest type!


Oh, further, in my host I have several package directories:
     /usr/portage/packages/
     /usr/portage/packages/local
     /usr/portage/packages/uclibc.host
     /usr/portage/packages/uclibc
     /usr/portage/packages/guest32
     /usr/portage/packages/guest64

The "local" one is for the host and the others are mounted to the 
appropriate class of guest.  Note this isn't as granular as you desire, 
eg the PHP package will normally have different use flags between apache 
and nginx guests.  However, portage simply uses or rebuilds the php 
package as it finds it previously built.  This is satisfactory for me.  
Mysql is another example where most guests build with "-minimal", but 
the servers build the full server.  Again handled automatically with a 
slight slowdown occasionally


Good luck

Ed W