LB with WebServer in Local VMs

# cat /root/ip.txt
[mylb]
192.168.0.120  ansible_ssh_user=root  ansible_ssh_pass=redhat 
[myweb]
192.168.0.122  ansible_ssh_user=root  ansible_ssh_pass=redhat
192.168.0.123  ansible_ssh_user=root  ansible_ssh_pass=redhat
192.168.0.124  ansible_ssh_user=root  ansible_ssh_pass=redhat

=========================================================================

-> Some changes in local "haproxy.cfg" file.

# -----------------------------------
# round robin balancing ...
# -----------------------------------
backend app
	balance  roundrobin
{% for i in groups['myweb'] %}
   server  app{{  loop.index  }}   {{ i }}:80  check
{{%  endfor  %}}

=============================================================================

# cat index.php

<pre>
<?php
print `/usr/sbin/ifconfig`;
?>
</pre>

==============================================================

# cat mylb.yml

- hosts: myweb
  tasks:
	- name: "installing httpd"
	  package:
		name: "httpd"
		state: present

	- name: "installing php"
	  package:
		name: "php"
		state: present

	- name: "copy content"
	  copy:
		src: "/index.php"
		dest: "/var/www/html"

	- name: "starting service"
	  service:
		name: "httpd"
		state: started
- hosts: mylb
  tasks:
	- name: "installing haproxy"
	  package:
		name: "haproxy"
		state: present

	- name: "sending haproxy config file"
	  template:
		src: "haproxy.cfg.j2"
		dest: "/etc/haproxy/haproxy.cfg"

	- name: "start service"
	  service:
		name: "haproxy"
		state: restarted

# ansible-playbook mylb.yml