HTTP::cookie, SWITCH and multiple identical pools

add them back in during HTTP responses based upon the pool which processed the request.

request uri is not in http response. to make it clearer, have you ever used http analyzer tool such as httpfox? it can show you how http request and response look like.

httpfox

about the irule, can't we just move persist cookie command inside switch case? e.g.

 config

[root@ve11a:Active:In Sync] config  tmsh list ltm virtual bar
ltm virtual bar {
    destination 172.28.24.10:80
    ip-protocol tcp
    mask 255.255.255.255
    persist {
        cookie {
            default yes
        }
    }
    profiles {
        http { }
        tcp { }
    }
    rules {
        qux
    }
    source 0.0.0.0/0
    source-address-translation {
        type automap
    }
    vs-index 5
}
[root@ve11a:Active:In Sync] config  tmsh list ltm rule qux
ltm rule qux {
    when HTTP_REQUEST {
  switch -glob [HTTP::path] {
    "/pool_a/*" {
      HTTP::path [string map {/pool_a/ /} [HTTP::path]]
      persist cookie
      pool pool_a
    }
    "/pool_b/*" {
      HTTP::path [string map {/pool_b/ /} [HTTP::path]]
      persist cookie
      pool pool_b
    }
    default {
      reject
    }
  }
}
}

 test (sending request wrong cookie but the right pool is picked up - can see from response cookie)

[root@ve11a:Active:In Sync] config  curl -I http://172.28.24.10/pool_a/ -H "Cookie: BIGipServerpool_b=1875429576.20480.0000"
HTTP/1.1 200 OK
Date: Fri, 18 Apr 2014 08:04:06 GMT
Server: Apache/2.2.3 (CentOS)
Last-Modified: Sun, 09 Feb 2014 08:39:51 GMT
ETag: "41879c-59-2a9c23c0"
Accept-Ranges: bytes
Content-Length: 89
Content-Type: text/html; charset=UTF-8
Set-Cookie: BIGipServerpool_a=1707657416.20480.0000; path=/

[root@ve11a:Active:In Sync] config  curl -I http://172.28.24.10/pool_b/ -H "Cookie: BIGipServerpool_a=1707657416.20480.0000"
HTTP/1.1 200 OK
Date: Fri, 18 Apr 2014 08:05:22 GMT
Server: Apache/2.2.3 (CentOS)
Last-Modified: Tue, 23 Apr 2013 06:46:40 GMT
ETag: "418432-4b-8c2c3400"
Accept-Ranges: bytes
Content-Length: 75
Content-Type: text/html; charset=UTF-8
Set-Cookie: BIGipServerpool_b=1875429576.20480.0000; path=/