Hi everyone, first of all, thank you all for your amazing work on HAProxy!
I am writing to you today because my colleague Alexander and I am experiencing a bug in our HAProxy deployment for which we hope to present an acceptable patch. The bug seems to be a regression introduced by 5e5152<https://github.com/haproxy/haproxy/commit/25e515235a8ddd7590b222980990baab764680ec> targeting the server IP address initialization path. When a server-state-file is used during HAProxy reload and the server-state-file contains a valid IP address for a server, the original server IP address from the HAProxy config takes precedence. The same is not the case for the server's port. This leads to the situation that when a servers IP address has been altered during operation, for example by issuing „set server b1/s1 addr 1.1.1.1“ to the socket API and HAProxy is reloaded with the server-state-file enabled, the servers IP address is reset its original IP address. For more details and a portable script that reproduces the bug, please have a look at the issue<https://github.com/haproxy/haproxy/issues/3265> we created, specifically this comment<https://github.com/haproxy/haproxy/issues/3265#issuecomment-3889562797>. The attached patch adjusts the server address initialization behavior such that IP addresses from the server-state-file take precedence if available. Big thanks to Daralet wo helped guide this patch so far. Please keep us in CC if possible. We look forward to all your inputs on this issue. Best regards, Benedict
BUG-MINOR-server-fix-server-state-file-servers-ip-ad.patch
Description: BUG-MINOR-server-fix-server-state-file-servers-ip-ad.patch
