Forum Discussion
Mike_129800
Nimbostratus
NimbostratusRedirect to different host and port based on URL
Hi
We just installed two F5 BigIP (LTM) devices so I am new to iRules, how would I setup the following redirect based on the incoming URL?
https://host.com/product1 redirect to https://host1.com:6500/product
https://host.com/product2 redirect to https://host2.com:6500/product
https://host.com/product3 redirect to https://host3.com:6500/product
https://host.com/product4 redirect to https://host4.com:6500/product
I was looking at doing the following for the URL rewrite but I am not sure how to get the hostname and port change part of the rewrite:
-----
when HTTP_REQUEST {
if { [string tolower [HTTP::uri]] starts with "/product1"}{
HTTP::uri [string map -nocase {product1 product} [HTTP::uri]]
}
if { [string tolower [HTTP::uri]] starts with "/product2"}{
HTTP::uri [string map -nocase {product2 product} [HTTP::uri]]
}
if { [string tolower [HTTP::uri]] starts with "/product3"}{
HTTP::uri [string map -nocase {product3 product} [HTTP::uri]]
}
if { [string tolower [HTTP::uri]] starts with "/product4"}{
HTTP::uri [string map -nocase {product4 product} [HTTP::uri]]
}
}
------
Thank you!
Mike
3 Replies
- nitass
Employee
i think you mean host and uri rewriting rather than redirection.
Redirects, Rewrites and App Transfers via iRules by Colin Walker
https://devcentral.f5.com/tech-tips/articles/redirects-rewrites-and-app-transfers-via-irules
e.g.[root@ve10:Active] config b virtual bar list virtual bar { snat automap destination 172.28.19.252:80 ip protocol 6 rules myrule profiles { http {} tcp {} } } [root@ve10:Active] config b rule myrule list rule myrule { when HTTP_REQUEST { switch [string tolower [HTTP::uri]] { /product1 { set newhost "host1.com";set newnode "200.200.200.101" } /product2 { set newhost "host2.com";set newnode "200.200.200.102" } /product3 { set newhost "host3.com";set newnode "200.200.200.103" } /product4 { set newhost "host4.com";set newnode "200.200.200.104" } default { do something } } HTTP::header replace Host $newhost HTTP::uri "/product" node $newnode 6500 } } [root@ve10:Active] config ssldump -Aed -nni 0.0 port 80 or port 6500 New TCP connection 1: 172.28.20.17(38342) <-> 172.28.19.252(80) 1373241702.9550 (0.0010) C>S --------------------------------------------------------------- GET /product1 HTTP/1.1 User-Agent: curl/7.15.5 (i686-redhat-linux-gnu) libcurl/7.15.5 OpenSSL/0.9.8b zlib/1.2.3 libidn/0.6.5 Accept: */* Host:host.com --------------------------------------------------------------- New TCP connection 2: 200.200.200.10(38342) <-> 200.200.200.101(6500) 1373241702.9562 (0.0011) C>S --------------------------------------------------------------- GET /product HTTP/1.1 User-Agent: curl/7.15.5 (i686-redhat-linux-gnu) libcurl/7.15.5 OpenSSL/0.9.8b zlib/1.2.3 libidn/0.6.5 Accept: */* Host:host1.com --------------------------------------------------------------- 
Mike_129800Thank you, so something like this for the iRule:when HTTP_REQUEST { switch [string tolower [HTTP::uri]] { /sto { set newhost "sto.domain";set newnode "200.200.200.101" } /cph { set newhost "cph.domain";set newnode "200.200.200.102" } /bru { set newhost "bru.domain";set newnode "200.200.200.103" } /jnb { set newhost "jnb.domain";set newnode "200.200.200.104" } default { do something } } HTTP::header replace Host $newhost HTTP::uri [string map -nocase {sto WOS} [HTTP::uri]] HTTP::uri [string map -nocase {cph WOS} [HTTP::uri]] HTTP::uri [string map -nocase {bru WOS} [HTTP::uri]] HTTP::uri [string map -nocase {jnb WOS} [HTTP::uri]] node $newnode 6500 }
I want to only replace part of the URL i.e. sto, cph, bru, jnb with WOS will the above work for that?
The set newnode "200.200.200.101" should that be the IP of new host or is it something else?
What is the virtual bar config for in the above example?
I am setting this up via the GUI.
Thanks,
Mike- nitassI want to only replace part of the URL i.e. sto, cph, bru, jnb with WOS will the above work for that?e.g.
[root@ve10:Active] config b rule myrule list rule myrule { when HTTP_REQUEST { switch [string tolower [HTTP::uri]] { /sto { set newhost "sto.domain";set newnode "200.200.200.101" } /cph { set newhost "cph.domain";set newnode "200.200.200.102" } /bru { set newhost "bru.domain";set newnode "200.200.200.103" } /jnb { set newhost "jnb.domain";set newnode "200.200.200.104" } default { do something } } HTTP::header replace Host $newhost HTTP::uri [string map {sto WOS cph WOS bru WOS jnb WOS} [HTTP::uri]] node $newnode 6500 } } [root@ve10:Active] config ssldump -Aed -nni 0.0 port 80 or port 6500 New TCP connection 1: 172.28.20.17(38378) <-> 172.28.19.252(80) 1373275574.5080 (0.0007) C>S --------------------------------------------------------------- GET /sto HTTP/1.1 User-Agent: curl/7.15.5 (i686-redhat-linux-gnu) libcurl/7.15.5 OpenSSL/0.9.8b zlib/1.2.3 libidn/0.6.5 Accept: */* Host: host.com --------------------------------------------------------------- New TCP connection 2: 200.200.200.10(38378) <-> 200.200.200.101(6500) 1373275574.5103 (0.0010) C>S --------------------------------------------------------------- GET /WOS HTTP/1.1 User-Agent: curl/7.15.5 (i686-redhat-linux-gnu) libcurl/7.15.5 OpenSSL/0.9.8b zlib/1.2.3 libidn/0.6.5 Accept: */* Host: sto.domain ---------------------------------------------------------------
you may use -glob switch option in case uri is not exact uri.
iRules 101 - 04 - Switch by Joe Pruitt
https://devcentral.f5.com/tech-tips/articles/irules-101-04-switch
The set newnode "200.200.200.101" should that be the IP of new hostyes
What is the virtual bar config for in the above example?it is standard virtual server with http profile. there is no pool because node command is used to send traffic to pool member.
