Configure ReverseProxy i.e. Haproxy and update it’s configuration via ansible

Update it’s configuration file automatically on each time new Managed node
(Configured With Apache Webserver) join the inventory.

So, let’s begin

I have Configured Master Node as Controller node of Ansible, created ansible configuration file in the ansible workspace and specified my inventory path

🔹Inventory: A database containing the list of worker nodes or system upon which configuration has to be performed

🔹Check the connectivity to all the nodes using command

ansible all -m ping → this command goes to all the node and perform ping operation

let’s begin with configuring the target nodes as web servers:

Here, I have created a single playbook where I have created two different plays. One play is for configuring the target nodes as webservers and the second play is for configuring the localhost as the Haproxy server.

🔹playbook for configuring the target nodes as webservers:

🔹This playbook will :

1. attach mount my RHEL8 dvd containing different software with the node
2. 2.create BaseOS & AppStream Yum Repo
3. Installs httpd package from the yum repo that we created
4. copy the content inside root directory of apache-webserver (/var/www/html/)
5. Start httpd services

🔹This playbook will :

1. Installs the HAproxy package, used for load balancing purpose
2. I have a pre-created configuration template in which I have used some of the Jinja2 programs in order to dynamically identify the IP of the backend servers, so this step will copy this template to the destination folder.

🔹Given is the image of the configuration file that i have copied to slave nodes using template module.

🔹Let’s run the playbook

🔹The load balancer has been configured successfully: