Haproxy redirecting - haproxy

Question

I have a Haproxy to redirect from https://sede.example.com.br to https://sede.example.pub. The problem the Haproxy configuration is not following the redirection.
If I test with the curl command passing -L argument (follow redirects), it works fine
curl -L https://sede.example.com.br
But I need to work without the -L option, because and have an API system that make some Post and Get operation and doesn't follow redirection. So I need do that in the Haproxy.
The configuration:
global
log /dev/log local0
log /dev/log local1 notice
chroot /var/lib/haproxy
stats socket /run/haproxy/admin.sock mode 660 level admin expose-fd listeners
stats timeout 30s
user haproxy
group haproxy
daemon
# Default SSL material locations
ca-base /etc/ssl/certs
crt-base /etc/ssl/private
# Default ciphers to use on SSL-enabled listening sockets.
# For more information, see ciphers(1SSL). This list is from:
# https://hynek.me/articles/hardening-your-web-servers-ssl-ciphers/
# An alternative list with additional directives can be obtained from
# https://mozilla.github.io/server-side-tls/ssl-config-generator/?server=haproxy
ssl-default-bind-ciphers ECDH+AESGCM:DH+AESGCM:ECDH+AES256:DH+AES256:ECDH+AES128:DH+AES:RSA+AESGCM:RSA+AES:!aNULL:!MD5:!DSS
ssl-default-bind-options no-sslv3
defaults
log global
mode http
option httplog
option dontlognull
timeout connect 5000
timeout client 50000
timeout server 50000
errorfile 400 /etc/haproxy/errors/400.http
errorfile 403 /etc/haproxy/errors/403.http
errorfile 408 /etc/haproxy/errors/408.http
errorfile 500 /etc/haproxy/errors/500.http
errorfile 502 /etc/haproxy/errors/502.http
errorfile 503 /etc/haproxy/errors/503.http
errorfile 504 /etc/haproxy/errors/504.http
frontend http-in
option httplog
bind *:80
bind *:443 ssl crt /usr/local/etc/haproxy/haproxy.cfg/certs/
timeout http-request 60s
timeout http-keep-alive 4s
acl https ssl_fc
http-request set-header X-Forwarded-Proto http if !https
http-request set-header X-Forwarded-Proto https if https
stats uri /haproxy?examplehaproxystats74581257445
log-format %{+Q}o\ %{-Q}ci\ -\ -\ [%T]\ %r\ %ST\ %B\ \"\"\ \"\"\ %cp\ %ms\ %ft\ %b\ %s\ \%Tq\ $
acl sede_acl req.hdr(host) -i -m str sede.example.com.br
redirect code 301 prefix https://sede.example.pub if sede_acl
Any ideia in my configuration?

Answer 1

Well you can try the following snipplet, it's untested but I hope you get the idea
frontend http-in
option httplog
bind *:80
bind *:443 ssl crt /usr/local/etc/haproxy/haproxy.cfg/certs/
timeout http-request 60s
timeout http-keep-alive 4s
acl https ssl_fc
http-request set-header X-Forwarded-Proto http if !https
http-request set-header X-Forwarded-Proto https if https
stats uri /haproxy?examplehaproxystats74581257445
log-format %{+Q}o\ %{-Q}ci\ -\ -\ [%T]\ %r\ %ST\ %B\ \"\"\ \"\"\ %cp\ %ms\ %ft\ %b\ %s\ \%Tq\ $
acl sede_acl req.hdr(host) -i -m str sede.example.com.br
# redirect code 301 prefix https://sede.example.pub if sede_acl
use_backend sede_acl if sede_acl
backend sede_acl
http-request set-header Host sede.example.pub
server sede-server sede.example.pub:443 sni sede.example.pub ssl