The mailing list for listmasters using Sympa

[Miles Fidelman <address@concealed>]

On Tue, Mar 20, 2018 at 12:20:57PM -0400, Matthew Caron wrote:
> > The same way you'd handle it on any other server.
> > It may help to think of docker as just another VM, just like running one
> > in VirtualBox or VMWare. The technical underpinnings matter very little.
Well, that's not exactly true.

Docker is a container, not a VM - it can encapsulate userspace, but it 
relies on a shared kernel environment.  There are some differences in 
terms of o/s services that are passed through, and not (it seems like 
somebody made a comment about syslog, for example).

Given that installing Sympa relies on CPAN, and running it relies on 
your mail environment (and probably antispam & antivirus) - getting the 
entire environment set gets a little tricky, and the technical 
underpinnings matter a lot.  And then you get into the whole issue of 
failover & recovery model.

Me, I run my mail environment in a Xen VM, with failover to a second 
machine - using DRBD to replicate disks.  It all works.  I expect that 
setting things up inside containers wouldn't be all that much more 
tedious - but there's lots of stuff to install, and interfaces to be 
considered.  Your mileage may vary.

Miles Fidelman


--
In theory, there is no difference between theory and practice.
In practice, there is.  .... Yogi Berra