Reuse haproxy unique_id

[asyd]

I want to reuse the request unique-id generated by haproxy, so I tried to add id=unique_id in haproxy SPOE configuration but I have:

DBG unknown kv entry name=id

[fionera]

This was removed with the rewrite to remove unwanted api surface. I am open to add this again but need some info's because i have to add some constraints to the id. how long are your id's?

[asyd]

Hi @fionera thanks for quick feedback! I use UUID so 36 bytes long

[nicolus]

I have the exact same use case with a 36 characters UUID. I generate an idea in the frontend and pass it on to everything else so that I can add them to error messages and investigate when a customer gets an error from the application, or in the case of coraza is blocked by a false positive.

This is a must have for me unless we can achieve the same result another way.

[asyd]

@nicolus mind to test my PR?

[fionera]

The issue i have with this is the cache we are using right now is broken anyway see #136 . I am working on a replacement but didn't had time yet to do that. Just supporting the id key inside the message is certainly a solution but I would either always use haproxy as generator for the id or never. Since we are apparently needing it, I would just replace the logic with the old one and use id() inside the haproxy config. What do y'all think?