Forum Discussion
iRule with pool status and maintenance page
I have several iRules that currently have 20+ switch elements that matches on a specific uri which takes you to a particular pool. I now need to display a maintenance page if there are no members in the pool. Is there an easier way to achieve this without adding an 'IF' statement in for each pool? I assume I could replace status and the maintenance page redirection with a process but it still seems long winded - probably comes from a poor design but partly dictated by the customer. Thanks in advance.
e.g.
when HTTP_REQUEST {
switch -glob [HTTP::uri] {
"/foo1" { if {[active_members pool1] <1}{
switch [HTTP::uri] {
"/logo.jpg" {
HTTP::respond 200 content [ifile get logo.gif] "Content-Type" "image/gif"
}
default {
HTTP::respond 200 content [ifile get error.html] "Content-Type" "text/html"
}
}
} else {pool pool1 }}
"/foo2" { if {[active_members pool2] <1}{
switch [HTTP::uri] {
"/logo.jpg" {
HTTP::respond 200 content [ifile get logo.gif] "Content-Type" "image/gif"
}
default {
HTTP::respond 200 content [ifile get error.html] "Content-Type" "text/html"
}
}
} else {pool pool2 }}
"/foo3" { if {[active_members pool3] <1}{
switch [HTTP::uri] {
"/logo.jpg" {
HTTP::respond 200 content [ifile get logo.gif] "Content-Type" "image/gif"
}
default {
HTTP::respond 200 content [ifile get error.html] "Content-Type" "text/html"
}
}
} else {pool pool3 }}
}
}
Hi,
Here is an irule example that do the same as your own irule :
when HTTP_REQUEST { if { [active_members pool1] <1 or [active_members pool2] <1 or [active_members pool3] <1} { if { [URI::basename [HTTP::uri]] eq "logo.jpg" } { HTTP::respond 200 content [ifile get logo.gif] "Content-Type" "image/gif" } else { HTTP::respond 200 content [ifile get error.html] "Content-Type" "text/html" } } else { switch -glob [HTTP::uri] { "/foo1*" { pool pool1 } "/foo2*" { pool pool2 } "/foo3*" { pool pool3 } } } }
Hi,
Here is an irule example that do the same as your own irule :
when HTTP_REQUEST { if { [active_members pool1] <1 or [active_members pool2] <1 or [active_members pool3] <1} { if { [URI::basename [HTTP::uri]] eq "logo.jpg" } { HTTP::respond 200 content [ifile get logo.gif] "Content-Type" "image/gif" } else { HTTP::respond 200 content [ifile get error.html] "Content-Type" "text/html" } } else { switch -glob [HTTP::uri] { "/foo1*" { pool pool1 } "/foo2*" { pool pool2 } "/foo3*" { pool pool3 } } } }
- Andrew_Smith_16NimbostratusThanks very much. I made a mistake in my example as well but this looks a lot cleaner.
- Yann_Desmarest_Nacreous
Hi,
Here is an irule example that do the same as your own irule :
when HTTP_REQUEST { if { [active_members pool1] <1 or [active_members pool2] <1 or [active_members pool3] <1} { if { [URI::basename [HTTP::uri]] eq "logo.jpg" } { HTTP::respond 200 content [ifile get logo.gif] "Content-Type" "image/gif" } else { HTTP::respond 200 content [ifile get error.html] "Content-Type" "text/html" } } else { switch -glob [HTTP::uri] { "/foo1*" { pool pool1 } "/foo2*" { pool pool2 } "/foo3*" { pool pool3 } } } }
- Andrew_Smith_16NimbostratusThanks very much. I made a mistake in my example as well but this looks a lot cleaner.
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