While I agree with the desire for an 'Include' statement, and perhaps a config
reload method also, in the mean time you can have 2+ balancers sharing 1 IP
with ucarp to have one take over while the other is restarting. This setup has
an added advantage of making OS upgrades and machine reboots easy also.
-Miles
Fat Bear Incorporated - Pound Mailing List wrote:
Hi Robert,
On Mon, 2008-10-20 at 08:47 -0700, Fat Bear Incorporated - Pound Mailing
List wrote:
Is there any "Include" directive for pound such as in Apache? If
not, can it be added? This would really help us better manage Pound
in a virtual hosting environment. Also, just like Apache, I would
like the ability for included files to also use Include directives.
With this addition, I will be able to add Pound support to
Virtualmin, a feature that I wish to develop.
Adding an "include" directive is not difficult, but its use is
questionable: after all, Pound does NOT read the config file after
starting. Are you sure that a simple shell script to concatenate your
files before starting Pound (perhaps with m4) would not be enough?
Using m4 is an interesting workaround. The downsides of this are both
technical and business related:
* Technical: The deployment of Pound is not portable. That is, we
cannot then migrate Pound configuration files from one of our
servers to another without being part of the Pound software
deployment process. We'd minimally need to modify
/etc/init.d/pound so that our changes are applied before starting
Pound each time. And, we'd need to install our scripts that run
m4, check for errors (e.g., missing files, recursion loops, etc.),
and take appropriate action if errors are found (as simple as
returning an error status so that "service pound start" fails).
* Business: Especially for businesses other than small businesses,
it is important that risks be mitigated. The loose coupling of
two pieces of software introduces risk. It would be better to
have one piece of software that can be QE tested and deployed.
So, while the workaround is certainly technically possible, it would not
be a desirable solution for enterprise environments. Pound deserves to
be Enterprise Grade.
As a side note, it would be a desirable feature that to have Pound
capable of re-reading configuration files without the service going down
(e.g., initiated with a HUP signal). Doing "service pound restart" is
always a bit troubling... there is a window in which the server will
fail to honor requests that always makes me cringe.
Thanks,
Steve Amerige
Fat Bear Incorporated
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