Using Apache ProxyPass Irule for reverseproxy

I did Apache proxypass config for years, and have used the equiv iRule, to good effect - that said, in many situations you can get by with something much simpler.

1. Create your SSL offload virtual server
2. Define and add to the VS a stream profile, and define your string replacements there; if you have multiple replacements, use a regexp in the "Target" field only. See: https://support.f5.com/kb/en-us/solutions/public/8000/100/sol8115.html ... this will make replacements in both your headers and content returned. For help in formatting string replacements: https://devcentral.f5.com/articles/ltm-stream-profile-multiple-replacements-regular-expressions but make sure to check the previous link i provided, because some things change in v11, and more changes in v11.4
3. If you're pre-11.4, make sure to set response processing in the HTTP profile to "rechunk"

Voila. Note this works if you don't need content-specific logic concerning what string replacements to make.