HAProxy with Docker

Use HAProxy with Docker

1. Create Dockerfile for HAProxy Build with Docker 

FROM haproxy:1.7 // Set HAProxy version
ADD haproxy.cfg /usr/local/etc/haproxy/haproxy.cfg

2. Docker build using Dockerfile created

docker build -t my-haproxy .

3.  After you build Dockerfile, you can find docker images that is my-haproxy 

$ docker images
REPOSITORY                              TAG                 IMAGE ID            CREATED             SIZE
my-haproxy                              latest              98f53e224010        5 hours ago         134.9 MB

4. To create HAProxy you should make haproxy.cfg that is configure file for haproxy. 

For test I already created two nodes

haproxy.cfg are contained health check 

global
 
  log 127.0.0.1  local0
  log 127.0.0.1  local1 notice
  maxconn  8192
 
defaults
  balance roundrobin
  log     global
  mode    tcp
  option  tcplog
  option  redispatch
  option  log-health-checks
  retries 5
  maxconn 8192
  timeout connect 50s
  timeout client  500s
  timeout server  500s
 
listen stats
  bind  *:1936
  mode  http
  stats enable
  stats uri /stats
  stats auth guest:guest
  stats refresh 5s
 
listen web
  bind *:80
  mode    http
  balance roundrobin
  server web1 172.17.0.8:7777 check
  server web2 172.17.0.9:7778 check