Forum Discussion

kgaigl's avatar
kgaigl
Icon for Cirrocumulus rankCirrocumulus
Dec 23, 2021

2 IRules with "when HTTP_REQUEST"

Hello, I need on a VS 2 IRules, one for redirect to a URI and one for a Maintanance Page: redirect:     when HTTP_REQUEST { if { [HTTP::uri] equals "/"} { HTTP::redirect "https://[H...
application delivery
http_request
iRules
LTM
  • Enes_Afsin_Al's avatar
    Enes_Afsin_Al
    Dec 23, 2021

    Hi kgaigl,

    I think a tcl error occurs. Can you investigate the ltm logs?

    cat /var/log/ltm | grep "TCL error"

    https://support.f5.com/csp/article/K23237429

    Redirect:

    when HTTP_REQUEST {
	if { [HTTP::has_responded] } { return }
	if { [HTTP::uri] equals "/" } {
		HTTP::redirect "https://[HTTP::host]/some-uri"
		return
	}
}

    Maintanance Page:

    when HTTP_REQUEST priority 450 {
	if { [HTTP::has_responded] } { return }
	if { [active_members [LB::server pool]] < 1 } {
		switch [HTTP::uri] {
			"/bg-wappen.gif" { HTTP::respond 200 content [ifile get "bg-wappen.gif"] }
			default { HTTP::respond 200 content {
				<!DOCTYPE html>
				...

    Combined:

    when HTTP_REQUEST {
	if { [HTTP::has_responded] } { return }
	if { [HTTP::uri] equals "/" } {
		HTTP::redirect "https://[HTTP::host]/some-uri"
		return
	}
	elseif { [active_members [LB::server pool]] < 1 } {
		switch [HTTP::uri] {
			"/bg-wappen.gif" { HTTP::respond 200 content [ifile get "bg-wappen.gif"] }
			default { HTTP::respond 200 content {
				<!DOCTYPE html>
				...
Enes_Afsin_Al's avatar
Enes_Afsin_Al
Icon for MVP rankMVP
Dec 23, 2021

Hi kgaigl,

I think a tcl error occurs. Can you investigate the ltm logs?

cat /var/log/ltm | grep "TCL error"

https://support.f5.com/csp/article/K23237429

Redirect:

when HTTP_REQUEST {
	if { [HTTP::has_responded] } { return }
	if { [HTTP::uri] equals "/" } {
		HTTP::redirect "https://[HTTP::host]/some-uri"
		return
	}
}

Maintanance Page:

when HTTP_REQUEST priority 450 {
	if { [HTTP::has_responded] } { return }
	if { [active_members [LB::server pool]] < 1 } {
		switch [HTTP::uri] {
			"/bg-wappen.gif" { HTTP::respond 200 content [ifile get "bg-wappen.gif"] }
			default { HTTP::respond 200 content {
				<!DOCTYPE html>
				...

Combined:

when HTTP_REQUEST {
	if { [HTTP::has_responded] } { return }
	if { [HTTP::uri] equals "/" } {
		HTTP::redirect "https://[HTTP::host]/some-uri"
		return
	}
	elseif { [active_members [LB::server pool]] < 1 } {
		switch [HTTP::uri] {
			"/bg-wappen.gif" { HTTP::respond 200 content [ifile get "bg-wappen.gif"] }
			default { HTTP::respond 200 content {
				<!DOCTYPE html>
				...