Hi, We have to make iRule, which should redirect to another VIP in the same LTM if one specific URL trigger. eg: request URL : http://abc/xyz redirect URL: http://abc:40001

Hi, Here is the iRule you need : when HTTP_REQUEST { if {([string tolower [HTTP::uri]] contains "/xyz") and [string to lower [HTTP::host]] equals "abc"}{ HTTP::redirect http://abc:40001; } }

Hi Thomas, Thank you for your quick response. Is there missing any syntax...? Because we are not able to save it from iRule Editor (it shows red).

I'm sorry typo mistake due to autocorrect... This is not "to lower" but "tolower". Sorry. when HTTP_REQUEST { if {([string tolower [HTTP::uri]] contains "/xyz") and [string tolower [HTTP::host]] equals "abc"}{ HTTP::redirect http://abc:40001; } }

Rewrite http redirect from one VIP to another VIP

21 Replies

Thomas_Gobet
Nimbostratus
Aug 14, 2014
Hi,

Here is the iRule you need :

when HTTP_REQUEST { if {([string tolower [HTTP::uri]] contains "/xyz") and [string to lower [HTTP::host]] equals "abc"}{ HTTP::redirect http://abc:40001; } }
- siyadh_121603
  Nimbostratus
  Aug 14, 2014
  Hi Thomas, Thank you for your quick response. Is there missing any syntax...? Because we are not able to save it from iRule Editor (it shows red).
Thomas_Gobet_91
Cirrostratus
Aug 14, 2014
Hi,

Here is the iRule you need :

when HTTP_REQUEST { if {([string tolower [HTTP::uri]] contains "/xyz") and [string to lower [HTTP::host]] equals "abc"}{ HTTP::redirect http://abc:40001; } }
- siyadh_121603
  Nimbostratus
  Aug 14, 2014
  Hi Thomas, Thank you for your quick response. Is there missing any syntax...? Because we are not able to save it from iRule Editor (it shows red).
Thomas_Gobet
Nimbostratus
Aug 14, 2014
I'm sorry typo mistake due to autocorrect... This is not "to lower" but "tolower".
Sorry.
when HTTP_REQUEST { if {([string tolower [HTTP::uri]] contains "/xyz") and [string tolower [HTTP::host]] equals "abc"}{ HTTP::redirect http://abc:40001; } }
- siyadh_121603
  Nimbostratus
  Aug 14, 2014
  Hi Thomas, Appreciated your quick reply. But it is redirecting to https and getting server error 404.
- LyonsG_85618
  Cirrostratus
  Aug 15, 2014
  You may prefer to have: starts_with "/xyz" If you use contains iRule will check the whole URI for /xyz? i.e. it will not only match http://abc/xyz but also http://abc/123/456/xyz
Thomas_Gobet_91
Cirrostratus
Aug 14, 2014
I'm sorry typo mistake due to autocorrect... This is not "to lower" but "tolower".
Sorry.
when HTTP_REQUEST { if {([string tolower [HTTP::uri]] contains "/xyz") and [string tolower [HTTP::host]] equals "abc"}{ HTTP::redirect http://abc:40001; } }
- siyadh_121603
  Nimbostratus
  Aug 14, 2014
  Hi Thomas, Appreciated your quick reply. But it is redirecting to https and getting server error 404.
- LyonsG_85618
  Cirrostratus
  Aug 15, 2014
  You may prefer to have: starts_with "/xyz" If you use contains iRule will check the whole URI for /xyz? i.e. it will not only match http://abc/xyz but also http://abc/123/456/xyz
nitass
Employee
Aug 14, 2014
But it is redirecting to https and getting server error 404.

can you post the port 80 and port 40001 virtual servers and their pools configurations?

tmsh list ltm virtual (name) tmsh list ltm pool (name)
- siyadh_121603
  Nimbostratus
  Aug 16, 2014
  Hi Nitass, Please find the below details. ------------------------------------------- 40001: ------------------------------------------- ltm virtual FIM_40001 { destination 172.16.215.32:40001 ip-protocol tcp mask 255.255.255.255 pool FIM_40001 profiles { tcp { } } source 0.0.0.0/0 translate-port disabled vlans-disabled } ltm pool FIM_40001 { members { 172.16.225.165:40001 { address 172.16.225.165 session monitor-enabled state up } 172.16.225.166:40001 { address 172.16.225.166 session user-disabled state up } } monitor gateway_icmp } ------------------------------------------- HTTP: ------------------------------------------- ltm virtual FIM_HTTP_http_virtual { app-service /Common/FIM_HTTP.app/FIM_HTTP destination /Common/172.16.215.32:http ip-protocol tcp mask 255.255.255.255 pool FIM_HTTP_pool profiles { /Common/tcp { } FIM_HTTP_http_profile { } } rules { /Common/FIM /Common/FIM-4001 /Common/FIM-4002 } source 0.0.0.0/0 vlans-disabled } ltm pool FIM_HTTP_pool { app-service /Common/FIM_HTTP.app/FIM_HTTP load-balancing-mode least-connections-member members { /Common/172.16.225.165:http { address 172.16.225.165 app-service /Common/FIM_HTTP.app/FIM_HTTP session monitor-enabled state up } /Common/172.16.225.166:http { address 172.16.225.166 app-service /Common/FIM_HTTP.app/FIM_HTTP session user-disabled state up } } monitor FIM_HTTP_http_monitor slow-ramp-time 300 }
nitass_89166
Noctilucent
Aug 14, 2014
But it is redirecting to https and getting server error 404.

can you post the port 80 and port 40001 virtual servers and their pools configurations?

tmsh list ltm virtual (name) tmsh list ltm pool (name)
- siyadh_121603
  Nimbostratus
  Aug 16, 2014
  Hi Nitass, Please find the below details. ------------------------------------------- 40001: ------------------------------------------- ltm virtual FIM_40001 { destination 172.16.215.32:40001 ip-protocol tcp mask 255.255.255.255 pool FIM_40001 profiles { tcp { } } source 0.0.0.0/0 translate-port disabled vlans-disabled } ltm pool FIM_40001 { members { 172.16.225.165:40001 { address 172.16.225.165 session monitor-enabled state up } 172.16.225.166:40001 { address 172.16.225.166 session user-disabled state up } } monitor gateway_icmp } ------------------------------------------- HTTP: ------------------------------------------- ltm virtual FIM_HTTP_http_virtual { app-service /Common/FIM_HTTP.app/FIM_HTTP destination /Common/172.16.215.32:http ip-protocol tcp mask 255.255.255.255 pool FIM_HTTP_pool profiles { /Common/tcp { } FIM_HTTP_http_profile { } } rules { /Common/FIM /Common/FIM-4001 /Common/FIM-4002 } source 0.0.0.0/0 vlans-disabled } ltm pool FIM_HTTP_pool { app-service /Common/FIM_HTTP.app/FIM_HTTP load-balancing-mode least-connections-member members { /Common/172.16.225.165:http { address 172.16.225.165 app-service /Common/FIM_HTTP.app/FIM_HTTP session monitor-enabled state up } /Common/172.16.225.166:http { address 172.16.225.166 app-service /Common/FIM_HTTP.app/FIM_HTTP session user-disabled state up } } monitor FIM_HTTP_http_monitor slow-ramp-time 300 }
LyonsG_85618
Cirrostratus
Aug 15, 2014
Hi

Should redirect not be:

HTTP::redirect "http://abc:40001"

Graham

nitass_89166

Noctilucent

Aug 16, 2014

can you try to set event priority and disable all after redirection?

priority

https://devcentral.f5.com/wiki/iRules.priority.ashx

event disable

https://devcentral.f5.com/wiki/iRules.event.ashx

e.g.

// config

root@(ve11a)(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
    }
    vs-index 63
}
root@(ve11a)(cfg-sync In Sync)(Active)(/Common)(tmos) list ltm rule qux
ltm rule qux {
    when HTTP_REQUEST priority 100 {
  if { [HTTP::path] starts_with "/xyz" } {
    HTTP::redirect "http://[HTTP::host]:40001/"
    event disable all
  }
}
}
root@(ve11a)(cfg-sync In Sync)(Active)(/Common)(tmos) list ltm virtual bar40001
ltm virtual bar40001 {
    destination 172.28.24.10:40001
    ip-protocol tcp
    mask 255.255.255.255
    pool foo40001
    profiles {
        tcp { }
    }
    source 0.0.0.0/0
    source-address-translation {
        type automap
    }
    vs-index 64
}
root@(ve11a)(cfg-sync In Sync)(Active)(/Common)(tmos) list ltm pool foo40001
ltm pool foo40001 {
    members {
        200.200.200.101:40001 {
            address 200.200.200.101
        }
    }
}

// test

[root@ve11a:Active:In Sync] config  curl -IL http://172.28.24.10/xyz/something
HTTP/1.0 302 Found
Location: http://172.28.24.10:40001/
Server: BigIP
Connection: Keep-Alive
Content-Length: 0

HTTP/1.1 200 OK
Date: Sat, 16 Aug 2014 08:24:04 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
Connection: close
Content-Type: text/html; charset=UTF-8

siyadh_121603
Nimbostratus
Aug 18, 2014
Hi Nitass, Thank you for your guidance and support. This iRules works fine when HTTP_REQUEST { if {([string tolower [HTTP::uri]] contains "/xyz") and [string tolower [HTTP::host]] equals "abc"}{ HTTP::redirect http://abc:40001; } }
Thomas_Gobet
Nimbostratus
Aug 18, 2014
Be careful on using contains, LyonsG was right. You may prefere using starts_with instead of contains, you'll be sure that you won't have "false matches".

nitass

Employee

Aug 16, 2014

can you try to set event priority and disable all after redirection?

priority

https://devcentral.f5.com/wiki/iRules.priority.ashx

event disable

https://devcentral.f5.com/wiki/iRules.event.ashx

e.g.

// config

root@(ve11a)(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
    }
    vs-index 63
}
root@(ve11a)(cfg-sync In Sync)(Active)(/Common)(tmos) list ltm rule qux
ltm rule qux {
    when HTTP_REQUEST priority 100 {
  if { [HTTP::path] starts_with "/xyz" } {
    HTTP::redirect "http://[HTTP::host]:40001/"
    event disable all
  }
}
}
root@(ve11a)(cfg-sync In Sync)(Active)(/Common)(tmos) list ltm virtual bar40001
ltm virtual bar40001 {
    destination 172.28.24.10:40001
    ip-protocol tcp
    mask 255.255.255.255
    pool foo40001
    profiles {
        tcp { }
    }
    source 0.0.0.0/0
    source-address-translation {
        type automap
    }
    vs-index 64
}
root@(ve11a)(cfg-sync In Sync)(Active)(/Common)(tmos) list ltm pool foo40001
ltm pool foo40001 {
    members {
        200.200.200.101:40001 {
            address 200.200.200.101
        }
    }
}

// test

[root@ve11a:Active:In Sync] config  curl -IL http://172.28.24.10/xyz/something
HTTP/1.0 302 Found
Location: http://172.28.24.10:40001/
Server: BigIP
Connection: Keep-Alive
Content-Length: 0

HTTP/1.1 200 OK
Date: Sat, 16 Aug 2014 08:24:04 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
Connection: close
Content-Type: text/html; charset=UTF-8

siyadh_121603
Nimbostratus
Aug 18, 2014
Hi Nitass, Thank you for your guidance and support. This iRules works fine when HTTP_REQUEST { if {([string tolower [HTTP::uri]] contains "/xyz") and [string tolower [HTTP::host]] equals "abc"}{ HTTP::redirect http://abc:40001; } }
Thomas_Gobet
Nimbostratus
Aug 18, 2014
Be careful on using contains, LyonsG was right. You may prefere using starts_with instead of contains, you'll be sure that you won't have "false matches".

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Rewrite http redirect from one VIP to another VIP

21 Replies

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