Howdy,

I was just wondering if there is a good guide out there on how to
redirect based upon what the URL is. For example, I want to direct any
traffic that has /rss at the end of it to backend_server b and
everything else to backend_server a. Thanks!

-max

[ Post a follow-up to this message ]

You'll have to write a service selector plug-in, which isn't as scary as
it sounds.  Look at the Vhosts.pm plugin for virtual hosts (which
redirects to a different pool based on hostname), and change it to work on
the URLs that you want.

- Brad


On Mon, 12 Sep 2005, Max Michaels wrote:

> Howdy,
>
> I was just wondering if there is a good guide out there on how to
> redirect based upon what the URL is. For example, I want to direct any
> traffic that has /rss at the end of it to backend_server b and
> everything else to backend_server a. Thanks!
>
> -max
>
>

[ Post a follow-up to this message ]

Well, the $host variable doesn't contain the URI request path, so it won't
match the "/rss" in your VHOST directive.

Here, use this:

http://danga.com/temp/DeliciousSelector.pm

Then load the plugin "DeliciousSelector" and remove your "VHOST" config
lines.  I've hardcoded "delicious_rss" and "delicious" for your pool
names.

- Brad



On Tue, 13 Sep 2005, max michaels wrote:

> Thanks for hints, but I'm still having problems getting adjustments
> to vhost.pm to work. Here's what I've change unsuccessfully:
>
> diff Perlbal-1.37.changes/lib/Perlbal/Plugin/Vhosts.pm
> Perlbal-1.37/lib/Perlbal/Plugin/Vhosts.pm
> 37c37
> <             unless $host =~ /^[\/\w\-\_\.\*]+$/;
> --- 
>
> and here is my perlbal.conf:
>
> load Vhosts
>
> CREATE POOL delicious_rss
>          POOL delicious_rss ADD x.x.x.x:80
>
> CREATE POOL delicious
>          POOL delicious ADD y.y.y.y:80
>
> CREATE SERVICE balancer2
>    SET listen          = 69.9.36.75:80
>    SET role            = selector
>    SET plugins         = vhosts
>    VHOST del.icio.us/rss = delicious_rss
>    VHOST del.icio.us = delicious
> ENABLE balancer2
>
>
> # always good to keep an internal management port open:
> CREATE SERVICE mgmt
>    SET role   = management
>    SET listen = 127.0.0.1:60000
> ENABLE mgmt
>
> It still seems to randomly choose and not differentiate. Any Ideas?
>
> Thanks!
>
> -max
>
> On Sep 12, 2005, at 1:17 PM, Brad Fitzpatrick wrote:
> 
>
>

[ Post a follow-up to this message ]

Hey Brad,

Thanks again for your help. We here at del.icio.us owe ya one. So I've
made a little progress and now the problem I'm running into is that
when i request the pages. It is directing correctly to the vhosts, but
it is saying that the vhosts aren't defined. I'm getting a 404 with the
message "Not Found (no configured vhosts 'delicious')" or
delicious_rss. I'm thinking that from looking at the example vhost
config that vhosts aren't aware of Pools. Just a guess. My config is
below. Thanks again for your help.

oad DeliciousSelector

CREATE POOL delicious_rss
POOL delicious_rss ADD x.x.x.x6:80

CREATE POOL delicious
POOL delicious ADD y.y.y.y:80

CREATE SERVICE balancer2
SET listen          = z.z.z.z:80
SET role            = selector
SET plugins         = DeliciousSelector
ENABLE balancer2


Thanks again,

-max
On Sep 13, 2005, at 1:54 PM, Brad Fitzpatrick wrote:
[vbcol=seagreen]
> Well, the $host variable doesn't contain the URI request path, so it
> won't
> match the "/rss" in your VHOST directive.
>
> Here, use this:
>
>    http://danga.com/temp/DeliciousSelector.pm
>
> Then load the plugin "DeliciousSelector" and remove your "VHOST" config
> lines.  I've hardcoded "delicious_rss" and "delicious" for your pool
> names.
>
> - Brad
>
>
>
> On Tue, 13 Sep 2005, max michaels wrote:
> 

[ Post a follow-up to this message ]

I should've changed the error message.  Replace in your head "configured
vhosts" with "configured service".

You need to make two services (named delicious and delicious_rss) of type
reverse_proxy, setup with all the fancy options you desire, and then have
delicious use pool, say, "pool_regular" and delcious_rss service use pool,
say, "pool_rss".

- Brad


On Wed, 14 Sep 2005, Max Michaels wrote:

> Hey Brad,
>
> Thanks again for your help. We here at del.icio.us owe ya one. So I've
> made a little progress and now the problem I'm running into is that
> when i request the pages. It is directing correctly to the vhosts, but
> it is saying that the vhosts aren't defined. I'm getting a 404 with the
> message "Not Found (no configured vhosts 'delicious')" or
> delicious_rss. I'm thinking that from looking at the example vhost
> config that vhosts aren't aware of Pools. Just a guess. My config is
> below. Thanks again for your help.
>
> oad DeliciousSelector
>
> CREATE POOL delicious_rss
>          POOL delicious_rss ADD x.x.x.x6:80
>
> CREATE POOL delicious
>          POOL delicious ADD y.y.y.y:80
>
> CREATE SERVICE balancer2
>    SET listen          = z.z.z.z:80
>    SET role            = selector
>    SET plugins         = DeliciousSelector
> ENABLE balancer2
>
>
> Thanks again,
>
> -max
> On Sep 13, 2005, at 1:54 PM, Brad Fitzpatrick wrote:
> 
>
>

[ Post a follow-up to this message ]