HOST and partial path rewrite

Hello CraigyB, Try using the following iRule.

when HTTP_REQUEST {
if { ( [string tolower [HTTP::uri]] starts_with "/info" ) } {
    set uri [HTTP::uri [string map {"/info" "/files"} [HTTP::uri]]]
    HTTP::redirect "https://[HTTP::host]$uri"
}
}

Hello CraigyB, Try using the following iRule.

when HTTP_REQUEST {
if { ( [string tolower [HTTP::uri]] starts_with "/info" ) } {
    set uri [HTTP::uri [string map {"/info" "/files"} [HTTP::uri]]]
    HTTP::redirect "https://[HTTP::host]$uri"
}
}

You can try this iRule - I've written it without the redirect as I presume you want to rewrite the header and URI on the fly - a redirect to a private IP may cause issues if accessing over the internet? Please correct me if not. I've also rewritten the host header using the selected back-end server IP and port you connect to, rather than hard code the IP addresses - this can be changed if needs be Let me know how you get on

when HTTP_REQUEST {
    if {[HTTP::uri] starts_with "/info"} {
        set newUri [string map [list "info" "files"] [HTTP::uri]]
        HTTP::header replace Host "[LB::server addr]:[LB::server port]"
        HTTP::uri $newUri   
    }
}

Cheers Lee

Hi,

to do it, no need to create irules.

there is a profile named "rewrite profile" which can do it. create one rewrite profile in URI translation mode, then create one rule with:

• client URI: https://my.server.net/info/
• server URI : http://10.10.10.10:9000/files/

I just need to redirect / rewwrite requests that come in to F5-VIP-Jenkins/info to jenkins-server:9000/jenkins_info. while still persisting any additional path that is supplied. So F5-VIP-Jenkins/info/project1 would redirect to jenkins-server:9000/jenkins_info/project1.

just another example

e.g.

// config

root@(ve13a)(cfg-sync In Sync)(Active)(/Common)(tmos) list ltm virtual bar
ltm virtual bar {
    destination 172.28.24.10:80
    ip-protocol tcp
    mask 255.255.255.255
    pool foo
    profiles {
        http { }
        tcp { }
    }
    rules {
        qux
    }
    source 0.0.0.0/0
    source-address-translation {
        type automap
    }
    translate-address enabled
    translate-port enabled
    vs-index 17
}
root@(ve13a)(cfg-sync In Sync)(Active)(/Common)(tmos) list ltm pool foo
ltm pool foo {
    members {
        200.200.200.101:9000 {
            address 200.200.200.101
        }
    }
}
root@(ve13a)(cfg-sync In Sync)(Active)(/Common)(tmos) list ltm rule qux
ltm rule qux {
when HTTP_REQUEST_RELEASE {
  if { [HTTP::uri] starts_with "/info/" } {
    HTTP::host "[LB::server addr]:[LB::server port]"
    HTTP::uri [string map {"/info/" "/jenkins_info/"} [HTTP::uri]]
  }
}
}

// test

[root@ve13a:Active:In Sync] config  ssldump -Aed -nni 0.0 port 80 or port 9000
New TCP connection 1: 172.28.24.1(42574) <-> 172.28.24.10(80)
1515777465.5177 (0.0006)  C>S
---------------------------------------------------------------
GET /info/project1/helloworld HTTP/1.1
User-Agent: curl/7.29.0
Host: 172.28.24.10
Accept: */*

---------------------------------------------------------------

New TCP connection 2: 200.200.200.14(3889) <-> 200.200.200.101(9000)
1515777465.5189 (0.0011)  C>S
---------------------------------------------------------------
GET /jenkins_info/project1/helloworld HTTP/1.1
User-Agent: curl/7.29.0
Host: 200.200.200.101:9000
Accept: */*

---------------------------------------------------------------

Check out F5's LTM > Policies instead of creating an iRule. You can do all this in the GUI.

Create a new policy, name it, then create a rule within the policy "Create policy" button, do all your rules here. URI and redirect changes. Then go to your VIP, resource tab, apply the policy.