How to redirect URL with HAProxy

Question

I need redirect www.foo.com and foo.com to www.bar.com in haproxy, this is my configuration:

frontend  http-in
    bind *:80

    acl bar.com hdr(host) -i www.ba         


        

Answer 1

Change order of the hostname:

redirect prefix http://www.bar.com code 301 if { hdr(host) -i foo.com }
redirect prefix http://www.bar.com code 301 if { hdr(host) -i www.foo.com }

instead of

redirect prefix http://foo.com code 301 if { hdr(host) -i www.bar.com }
redirect prefix http://www.foo.com code 301 if { hdr(host) -i www.bar.com }