Specialized network proxy daemon.
Notes on Setup
I setup two simple nginx webservers to test this configuration. They both served up a simple static page whose only contents was an indication of which server it was served from.
yum install haproxy keepalived -y
Setup the logging haproxy will use
cat << EOF > /etc/rsyslog.d/haproxy.conf local2.* /var/log/haproxy.log EOF service rsyslog restart
This config worked as an initial pass setting up haproxy. The
configuration lives at
/etc/haproxy/haproxy.cfg. You will also need to open
up the outbound firewall to nginx and the inbound firewall to the port.
-A INPUT -m tcp -p tcp --dport 80 -m conntrack --ctstate NEW -j ACCEPT -A OUTPUT -m tcp -p tcp --dport 80 -j ACCEPT
And setup haproxy to run.
systemctl enable haproxy.service systemctl start haproxy.service