v12 URL/URI Rewrite

Untested:

when HTTP_REQUEST { 
if { ([HTTP::host] equals "site1.domain.com") } { 
HTTP::host [string map {site1.domain.com site2.subdomain.com} [HTTP:host]]
} 
} 
when HTTP_RESPONSE {
if { [HTTP::header values Location] contains "site2.subdomain.com" } {
HTTP::header replace Location [string map {site2.subdomain.com site1.domain.com} [HTTP::header value Location]]
}
}

Fortunately in v12, an iRule is no longer needed for this type of translation. The rewrite profile is what you would use, especially if you used the proxy-pass iRule in the past.

Simply rewriting the Host header in the request and Location headers in the response will not address URLs that exist in HTML content.

Simply create a uri-translation rewrite profile and add a URL rule:

Client URL: https://site1.domain.com/
Server URL: https://site2.sub.domain.com/widget/

Notice the URLs end in a

/

Instead of sending the rewrite to a uri can we send it to a f5 pool?

I tried the rewrite profile, but I'm still seeing the hosts field come up as site1.domain.com as opposed to site2.sub.domain.com in my packet captures. For me, I don't need the uri replaced, I want that to go through.

My rewrite profile is set for client url: https://site1.domain.com/ Server url: https://site2.sub.domain.com/

Any idea why the host headers wouldn't be re-written?