add haproxy script for env setup

going to try and test this one day

README.md

@@ -1 +1,11 @@
 # nginx-vs-haproxy
+
+## haproxy
+
+haproxy is a great load balancer, but we should stand up an environment and test...
+
+```bash
+./run-haproxy.sh
+```
+
+Go to: <http://localhost:8080> and/or <http://localhost:8080/stats>

haproxy/haproxy.cfg

@@ -0,0 +1,19 @@
+global
+  debug
+  maxconn 256
+
+defaults
+  mode http
+  timeout connect 5s
+  timeout client 50s
+  timeout server 50s
+  stats enable
+  stats uri /stats
+
+frontend http-in
+  bind *:80
+  default_backend servers
+
+backend servers
+  server s01 apache-01:80 check cookie s01
+  server s02 apache-02:80 check cookie s02

html/index.html

@@ -0,0 +1 @@
+Hello to the World!

run-haproxy.sh

@@ -0,0 +1,13 @@
+#!/bin/bash
+
+CWD="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+if [[ $(docker network ls | grep network) ]]; then
+  echo 'found network'
+else
+  echo 'did not find network, creating network'
+  docker network create network
+fi
+
+docker run -dit --name=apache-01 --net=network --log-driver=json-file -v "$CWD/html/":/usr/local/apache2/htdocs/:ro httpd:2.4-alpine
+docker run -dit --name=apache-02 --net=network --log-driver=json-file -v "$CWD/html/":/usr/local/apache2/htdocs/:ro httpd:2.4-alpine
+docker run -dit --name=haproxy --log-driver=json-file --net=network -v "${CWD}/haproxy/haproxy.cfg":/usr/local/etc/haproxy/haproxy.cfg:ro -p 8080:80 haproxy:1.8-alpine