I’m trying to loadbalance a few dovecot instances and the SSL cert being shown to the users is the dovecot server’s not the HAproxy version. The documentation for this is sparse and scattered, so I couldn’t make a perfect setup that gave valid ssl certs. Does each dovecot server need to have a cert with the haproxy domain for this to work?
Here’s my config:
global
log /dev/log local0
log /dev/log local1 notice
chroot /var/lib/haproxy
stats socket /run/haproxy/admin.sock mode 660 level admin
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/
ssl-default-bind-ciphers ECDH+AESGCM:DH+AESGCM:ECDH+AES256:DH+AES256:ECDH+AES128:DH+AES:ECDH+3DES:DH+3DES:RSA+AESGCM:RSA+AES:RSA+3DES:!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
listen webForward
bind :443 ssl crt /etc/ssl/private/certprivkey.pem no-sslv3
#mode tcp
reqadd X-Forwarded-Proto:\ https
default_backend www-backend
backend www-backend
redirect scheme https if !{ ssl_fc }
#mode tcp
balance roundrobin
stick-table type ip size 200k expire 30m
stick on src
server s1 6x.xxx.xx.xxx:443
listen dovecot-imap
bind :993
mode tcp
#option ssl-hello-chk
option http-keep-alive
balance first
tcp-check connect port 993
tcp-check expect string *\ OK
stick-table type ip size 200k expire 15m
stick on src
timeout server 1m
timeout connect 1m
timeout client 5m
server s1 10.0.0.1:10993 send-proxy-v2
server s2 10.0.0.2:10993 send-proxy-v2