Forum Discussion
wtwagon_99154
Nimbostratus
NimbostratusAnyone use iRules with SiteSpect?
I wanted to see if anyone out there has experiencing using iRules with the SiteSpect appliance.
What I'd like to accomplish is the following (Pseudocode)
NOTE: SSLB = Coo...
andrew_waldvogeNimbostratus
NimbostratusI'm not sure if this is the most elegant way of doing this. Actually I am sure it is not since LB::status was not available when I wrote this,
and also because I'm a hack.
Anyhow, it works for us, and I always prefer the least complicated (in my opinion) solution.
I tried to trim it down to only what refers to the sitespect configuration. Hope it still makes sense.
external VIP
virtual vip_example_http {
pool vip_example_http
destination 1.2.3.4:http
ip protocol tcp
rules vip_example_URI
profiles
http
tcp-loadtest
}
rule vip_example_URI {
when HTTP_RESPONSE {
if { ! [HTTP::cookie exists "SSLB"] } {
HTTP::cookie insert name "SSLB" value "A" domain "my.domain.com"
}
}
when HTTP_REQUEST {
...
...
} else {
if { [HTTP::cookie exists "SSLB"] } {
set ss_cookie [HTTP::cookie "SSLB"]
if { ( $ss_cookie == "B" ) and ( [active_members vip_example_sitespect] > 0 ) } {
pool vip_example_sitespect
} else {
pool vip_internal_http
}
} else {
pool vip_example_http
}
}
}
}
this pool contains only the sitespect
pool vip_example_sitespect {
members 10.10.10.1:81
}
this pool contains sitespect and webservers and you would have your ratio here
pool vip_example_http {
members
10.10.10.1:81
10.10.10.2:81
10.10.10.3:81
10.10.10.4:81
}
internal VIP
virtual vip_internal_http {
snatpool SNAT_internal
pool vip_internal_http
destination 10.10.10.100:http
ip protocol tcp
rules vip_internal_URI
profiles
http
tcp-loadtest
}
No additional config for the sitespect in this rule
rule vip_internal_URI {
when HTTP_REQUEST {
....
....
} else {
pool vip_internal_http
}
}
}
snat for the internal VIP
snatpool SNAT_internal {
members 10.10.10.100
}
this pool contains the webservers and NOT sitespect
pool vip_internal_http {
members
10.10.10.2:81
10.10.10.3:81
10.10.10.4:81
}
