Squid URL based proxy with port redirects

[eds89]

Hi There,

I was hoping someone might be able to point me in the direction of some resources, or advise me on how to achieve the below;

I have multiple internal sites running on different ports mostly on different machines (one or two running on the same box).
My external URLs require the port number, ad in pfSense I am currently doing static port forwarding. So users use these kind of URLs:
https://domainname:8080
https://domainname:8081
etc

To try and make life slightly easier for end users, I thought it would be nice to provide them with the following URL format:
https://domainname/app1
https://domainname/app2
etc.

I started looking at squid, but not entirely sure on the correct way to complete basic setup, and add proxy rules.

Can anyone help me out?

Thanks
Eds