On Jan 29, 2013, at 4:24 PM, Adrian Reyer wrote:

> Hi Dan,
> 
> On Tue, Jan 29, 2013 at 11:23:17AM -0500, Dan Langille wrote:
>> Bring a computer pre-installed with N running instances of bacula-dir 
>> and bacula-sd, each with their own Catalog.
>> This server would run one instance of PostgreSQL, containing one 
>> Catalog for each Attendee.
>> Each Attendee's home directory would contain bacula-dir.conf and 
>> bacula-sd.conf.
>> Each will need sudo so they can stop and start THEIR instance of the 
>> daemons.
>> Each instance will need to listen on a different set of ports.
> 
> All my bacula installations bacula-dir and bacula-sd reside in
> individual Linux-VServers (http://linux-vserver.org/), basically because
> I use them everywhere anyway. They have own IP-Adresses and are
> accessible via them. A user can have root inside to do all things I'd
> imagine to be needed for a bacula-tutorial, but they can't change IPs or
> add iptable rules.
> From the host view, it is just directories containing the vservers, you
> can e.g. use tar and stash them away and extract again later for the
> next attempt. In the special case of linux-vserver there is another
> thing called 'unification', the binaries can be hardlinked between the
> different VServers with added copy-on-write link breaking. That way you
> safe space on disk (not important), but as they are the same inode in
> all VServers, Linux shared memory management will just load the static
> stuff once for all VServers and this safes quite a bit of ram if you
> have many instances.
> Similar things with linux are done by openvz or lxc, on Solaris and
> various BSD-variants it is very likely called jail or container.

I was also thinking about jails for this.  That might actually be easier.

Why? Every jail is the same.

But I'd install only one instance of PostgreSQL.

-- 
Dan Langille - http://langille.org


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