Ansible to configure haproxy(loadbalancer)
“🔅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 webserver versions
and solving challenge for host ip’s addition dynamically over each Managed
Node in HAProxy.cfg file.”
Roles let you automatically load related vars_files, tasks, handlers, and other Ansible artifacts based on a known file structure. Once you group your content in roles, you can easily reuse them and share them with other users.
firstly you need to set the ips of loadbalaner and my web to work this job
check if you are connected to the loadbalacer and web
ansible all -m ping
we need to create the roles to function myloadbalancer and myapache
In this we need to create the seperate roles of myloadbalancer and my apache
ansible-galaxy role init myapache
ansible-galaxy role init myloadbalancer
here, we can see the role functions .
this tells the roles that are present in our system
ansible-galaxy role list
To configure loadbalancer using loadbalancer role
we should use this command and configure the file…
To configure webserver using apache role
we need to use this command and configure this file…
This is the haproxy.cfg file we need to configure in loadbalancer using jinja
This is the index.php file you need to configure in myapache
This is the yml file we need to combine the both myloadbalaner and myapache roles and configure the file
use this command and configure the file..
Run the file using playbook
To test if the setup is work or not we use (mylb)ip:8081/index.php
At last we created the roles and combined the role and controlling the weberver version…