NimbostratusDear all external user can access http://123.10.1.1:9090/abc , we need to load balance between two internal server 10.173.20.13:8080/abc and 10.173.20.14:8080/abc and there is another service http://123.10.1.1:9090/cde , we need to load balance between 10.173.20.15:7070/cde and 10.173.20.16:7070/ced can iRule do this and how to do?? Thanks!
NimbostratusHi Frank,
yes, you can do it with an iRule.
when HTTP_REQUEST {
if { [HTTP::uri] contains "abc" } {
pool pool1
} elseif { [HTTP::uri] contains "cde" } {
pool pool2
}
}
NoctilucentDone some modification in above irule. Rest every thing is correct.
when HTTP_REQUEST {
if {[string tolower[HTTP::uri]] starts_with "/abc"} {
pool pool1 }
elseif {[string tolower[HTTP::uri]] starts_with "/def"} {
pool pool2 }
}
thanks!
NimbostratusInstead of using iRules, you can also use a ltm policy, which makes it more visible:
Name: select_pool Requires: http Controls: forwarding
Rule: forward_pool1 Condition: http-uri starts_with /abc Action: forward pool pool1 Rule: forward_pool2 Condition: http-uri starts_with /def Action: forward pool pool2
It may require some more configuring then using an iRule but instead of using TCL code, you get an clear overview what the policy does.
Nimbostratusthanks! I will try it.
Nimbostratusthanks, there is another question. how do i setting local traffic VS's default pool？ or don't need the default pool?
CirrusAssuming that you have configured default pool within the VS configuration, you can use an iRule like this modified from @jhass' iRule:
when CLIENT_ACCEPTED {
set DEFAULT_POOL [LB::server pool]
}
when HTTP_REQUEST {
if {[string tolower[HTTP::uri]] starts_with "/abc"} {
pool pool1
} elseif {[string tolower[HTTP::uri]] starts_with "/def"} {
pool pool2
} else {
pool DEFAULT_POOL
}
}