Configure Haproxy and Webserver Using Ansible Role

🔅Create an ansible role myapache to configure Httpd WebServer.

🔅Create another ansible role myloadbalancer to configure HAProxy LB.

🔅We need to combine both of these roles controlling web server versions and solving challenges for host IP’s addition dynamically over each Managed Node in HAProxy.cfg file.

Step 1: First we have to create an Ansible role for the webserver (name: - webserver) and For load balancer (name load balancer)

Step 2: Now we have to do the following step for the configuration of the Webserver

---
# tasks file for webserver

- package:
        name:  "{{ item }}"
        state: present

  loop:
          "{{ x  }}"

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

- service:
        name: httpd
        state: started

- replace:
        dest: "/etc/httpd/conf/httpd.conf"
        regexp: AllowOveride None
        replace: AllowOveride AuthConfig
  notify: restart

- block:
  - file:
        path: /etc/www.passwd
        state: file

  rescue:
  - file:
        path: /etc/www.passwd
        state: touch

- block:
  - file:
        path: "{{  httpdpasswdfile }}"
        state: file
  rescue:
  - file:
        path:  "{{  httpdpasswdfile }}"
        state: touch

- blockinfile:
       path: "{{ httpdpasswdfile }}"
       block:
            AuthName "HKM"
            AuthType Basic
            AuthUserFile  "/etc/www.passwd"
            Require valid-user      
  ignore_errors: true

- block:        
  - htpasswd:
        path: /etc/www.passwd
        name: "{{ username }}"
        password: "{{ password }}" 
    notify: restart
  rescue:
  - debug: 
         msg: "User and Password exist"        

This is the Handlers file

---
# handlers file for webserver
#
- name: installation
  service:
          name: httpd
          state: started

- name: restart
  service:
          name: httpd
          state: restarted        

This is Vars file for the webserver

---
# vars file for webserver
#
x: 
  - httpd
  - php

username: vinayak
password: kmar

httpdpasswdfile: "/var/www/html/.htaccess"        

Step 3: Now we have to configure the LoadBalancer

---
# tasks file for loadbalancer

- package:
        name: "{{ package_name }}"
        state: present

- template:
        dest: "/etc/haproxy/haproxy.cfg"
        src: haproxy.cfg
  notify: restart

- service:
        name: "{{ package_name }}"
        state: started        

Handlers File

---
# handlers file for loadbalancer
#
- name: restart
  service:
          name: haproxy
          state: started        

Vars File

---
# vars file for loadbalancer
#
package_name: haproxy        

Step 4: To Use Both the Role we have to add the Ansible Playbook

- hosts: web
  roles:
  - role: "webserver"

- hosts: lb
  roles:
  - role: "loadbalancer"         

Now We have to use the LoadBalancer ip and the port (5000 ) to get our site (192.168.6.2:5000)

Here It Asks a Password and username as we set this using Ansible Role. U can See the Above Playbook of Webserver

This is the Final Output we Receive u can see that u get our site

NOTE:- GITHUB URL :- https://github.com/vinayak04u/Webserver-and-Haproxy-using-Ansible-role