Hi,
I’ve finally found the solution.
I had to set “haproxy_connect_any” to 1 to allow haproxy to connect to all tcp port.
setsebool -P haproxy_connect_any 1
https://www.systutorials.com/docs/linux/man/8-haproxy_selinux/
Everything is working fine now.
Thanks again for your help.
Seb.