Usando CentOS 7 como HaProxy 1.8
# yum info haproxy
Bored Bison
# yum info haproxy
# systemctl restart haproxy
$ wget http://www.haproxy.org/download/1.7/src/haproxy-1.7.5.tar.gz -O ~/Packages/haproxy.tar.gz
# This GNU Makefile supports different OS and CPU combinations.
#
# You should use it this way :
# [g]make TARGET=os ARCH=arch CPU=cpu USE_xxx=1 ...
# chmod 755 /etc/init.d/haproxy
# useradd -r haproxy
# yum install wget gcc pcre-static pcre-devel
$ cd haproxy-1.7.5/
$ make TARGET=generic ARCH=native CPU=x86_64 -j8
# cp haproxy-1.7.5/examples/haproxy.init /etc/init.d/haproxy