DevOps Classroomnotes 28/May/2023

Ansible contd..

Activity 2: Installing lamp server on ubuntu

• Note: we will skip mysql installation for now
• Manual steps are

sudo apt update
sudo apt install apache2 -y
sudo apt install php libapache2-mod-php php-mysql -y
# Create a file called as /var/www/html/info.php with below content
# <?php phpinfo(); ?>
sudo -i
echo '<?php phpinfo(); ?>' > /var/www/html/info.php
exit
sudo systemctl restart apache2

• Refer Here for the changset containing playbook, inventory and file
• Check for syntax of playbook

ansible-playbook -i <inventory-path> --syntax-check <playbook-path>

• Now lets run the playbook ansible-playbook -i <inventory-path> <playbook-path>
  
• Verify the installation
  
• Problems to be addressed
  • during every playbook execution the apache service is getting restarted
    

Activity 3: Install lamp stack on Redhat 9

• Manual steps

sudo yum install httpd -y
sudo systemctl enable httpd
sudo systemctl start httpd
sudo yum install php -y
sudo -i
echo '<?php phpinfo(); ?>' > /var/www/html/info.php
exit
sudo systemctl restart httpd

• Refer Here for the changeset for redhat
• Execute playbook
  
• Problems
  • during every playbook execution the apache service is getting restarted
  • Why should we have two inventory files one for ubuntu and one for redhat
  • Can we have one playbook for both redhat and ubuntu
  • Bailout with proper failure message for unsupported operating systems

Exercies

• Write playbooks to install the following on ubuntu 22.04
  • java 17
  • .net 7
  • nginx