multiple instances

[Gary Smith <ga...@holdstead.com>]

I have a need to run several different instances of SA on a single box (in development).  In production, we have 3  different SA environments (with 2+ servers each) that have different rule sets and specific routing rules determine which instance it gets sent to.   We need to mimic this in development.  

Ideally I would like to create all 3 instances (*2 mimicing load balancing) on a single development box.  We're not worried about the performance or memory aspect.

Is this possible, and if so, is there an easy way to do this.   I was thinking that I could create separate chroot environments for each one if necessary and either bind each instance to an IP (which I'm not sure if that's possible) or at least a different port.

Any advice (or some sample scripts on doing this) would be greatly appreciated.

Gary Smith

RE: multiple instances

[Gary Smith <ga...@holdstead.com>]

> 
> I'm sure it's possible, but rather than going through all the work of
> trying to script and setup chroot environments, why not use VMs?  You
> can then quite literally match the production setup.
> 
> Since you are not worried about performance or memory you could give
> each VM 128 MB of RAM and only be using 1 GB or so total...
> 

Dennis, 

I had though about that, but the target is a mobile laptop.  Our in house development we do use VM's for almost everything just for this purpose.

Looking into spamd, I think I will just copy the config folder for each instance type and then run the daemon via a bash script to create it against 9 local IP's.

I know for things like MySql some people already have some multi-instance scripts laying around.  Anyway, I think this will suffice for now.

Gary 

Re: multiple instances

["Dennis B. Hopp" <dh...@coreps.com>]

On Fri, 2010-04-16 at 10:08 -0700, Gary Smith wrote:
> I have a need to run several different instances of SA on a single box (in development).  In production, we have 3  different SA environments (with 2+ servers each) that have different rule sets and specific routing rules determine which instance it gets sent to.   We need to mimic this in development.  
> 
> Ideally I would like to create all 3 instances (*2 mimicing load balancing) on a single development box.  We're not worried about the performance or memory aspect.
> 
> Is this possible, and if so, is there an easy way to do this.   I was thinking that I could create separate chroot environments for each one if necessary and either bind each instance to an IP (which I'm not sure if that's possible) or at least a different port.
> 
> Any advice (or some sample scripts on doing this) would be greatly appreciated.
> 

I'm sure it's possible, but rather than going through all the work of
trying to script and setup chroot environments, why not use VMs?  You
can then quite literally match the production setup.

Since you are not worried about performance or memory you could give
each VM 128 MB of RAM and only be using 1 GB or so total...

--Dennis