Configure Web Server and Load Balancer using Ansible in Redhat Linux OS

3 min readJan 12, 2021

A computer which gives service to host the website for real world is known as web server , i have configured apache software on OS for use as web server .

Apache web server is run on port number 80 , it can be changed . Root directory of apache webserver is “/var/www/html”

In apache client authentication is done by webserver , for configure authentication through webserver first of all need to edit file “/etc/httpd/conf/httpd.conf”

After edit file run below command , this command will update data base for username

htpasswd /etc/www.passwd username

After add user to database create file “.htaccess” in root directory of web server as :

After done all the process restart webserver using below command

systemctl restart httpd

Load balancer: Load balancer balance the traffic of webservers or applications . It transfer the traffic among servers so that single point of failure is avoided.

Haproxy is free open source software that provides a high availability load balancer and proxy server for tcp and http based application , that spreads requests across multiple servers.

For configure web server and load balancer created ansible playbook

Ansible Playbook:

- hosts: mywebtasks:
  - command: "ls -l /dvd"
    register: x
    ignore_errors: yes
  - file:
      state: directory
      path: /dvd
    when: x.rc != 0
  - mount:
      path: "/dvd"
      src: "/dev/cdrom"
      state: mounted
      fstype: "iso9660"
  - yum_repository:
      name: "mydvd1"
      description: "This is dvd1 for package"
      baseurl: "/dvd/AppStream"
      gpgcheck: no  - yum_repository:
      name: "mydvd2"
      description: "This is dvd2 for package"
      baseurl: "/dvd/BaseOS"
      gpgcheck: no
  - name: "install web server"
    package:
      name: "httpd"
      state: present  - name: "install php"
    package:
      name: "php"
      state: present
  - copy:
      dest: "/var/www/html/index.php"
      src: "index.php"  - replace:
      path: "/etc/httpd/conf/httpd.conf"
      regexp: "AllowOverride None"
      replace: "AllowOverride AuthConfig"  - copy:
      src: ".htaccess"
      dest: "/var/www/html/.htaccess"  - package:
      name: "python36"  - pip:
      name: "passlib"
  - htpasswd:
      path: "/etc/www.passwd"
      name: "dhiru"
      password: "qwerty"
  - service:
      name: "httpd"
      state: restarted
      enabled: yes  - firewalld:
      port: "80/tcp"
      permanent: yes
      state: enabled
      immediate: yes- hosts: mylbtasks:
  - name: "install load balancer"
    package:
      name: "haproxy"  - template:
      src: "haproxy.cfg.j2"
      dest: "/etc/haproxy/haproxy.cfg"  - service:
      name: "haproxy"
      state: restarted  - firewalld:
      port: "5000/tcp"
      permanent: yes
      state: enabled
      immediate: yes