haproxy config manual update for multiple ports

[dovecot at ptld.com]

> On 10-07-2021 5:51 am, Marc wrote:
> 
> Maybe update this to having multiple ports (if this is even possible)
> 
> frontend ft_imap
>     bind :110 <<
>     bind :143
>     mode tcp
>     default_backend bk_imap
> 
> backend bk_imap
>     mode tcp
>     balance leastconn
>     stick store-request src
>     stick-table type ip size 200k expire 30m
>     server s1 backend.example.com:10143 send-proxy-v2 <<< how to put 
> more ports here?

If you are using the same port on the backend server (I see in your case 
you are not, 10143) you can leave the port off and it will work for 
multiple ports using the port the traffic came in on. For example...

frontend imap
     bind xxx.xxx.xxx.xxx:110
     bind xxx.xxx.xxx.xxx:143
     bind xxx.xxx.xxx.xxx:993
     bind xxx.xxx.xxx.xxx:995
     bind [xxx:xxx:xxx:xxx:xxx:xxx:xxx:xxx]:110
     bind [xxx:xxx:xxx:xxx:xxx:xxx:xxx:xxx]:143
     bind [xxx:xxx:xxx:xxx:xxx:xxx:xxx:xxx]:993
     bind [xxx:xxx:xxx:xxx:xxx:xxx:xxx:xxx]:995
     default_backend imap_servers

backend imap_servers
     balance leastconn
     stick on src table single_imap_table
     default-server send-proxy-v2 check port 143
     server mx-d884 mx-d884.example.com