sudo apt-get install -qq build-essential libssl-dev libev-dev libpcre3-dev
wget https://www.haproxy.org/download/1.7/src/haproxy-1.7.5.tar.gz
tar xzvf haproxy-1.7.5.tar.gz
cd haproxy-1.7.5
sudo make TARGET=generic USE_OPENSSL=1 USE_ZLIB=yes CPU=native USE_PCRE=1