DevOps Classroom notes 31/Jul/2025

Ansible playbook

Ansible autocomplete

• Steps

sudo apt install python3-argcomplete -y

• Now appending the following to the file ~/.bashrc

eval "$(register-python-argcomplete ansible)"
eval "$(register-python-argcomplete ansible-config)"
eval "$(register-python-argcomplete ansible-playbook)"
eval "$(register-python-argcomplete ansible-galaxy)"

• now in the current terminal source ~/.bashrc
• when you are executing ansible commands we can use tab to view options

Execution

• Verify playbook syntax

ansible-playbook --syntax-check -i hosts <playbook>.yaml

• Ansible also has dry run (which doesnot work in certain cases)

ansible-playbook --check --inventory hosts apache.yaml

• To execute ansible playbook

ansible-playbook -i hosts <playbook>.yaml

Reading ansible playbook execution.

• Ansible adds an extra task to collect facts
• Any task will result with
  • ok: Desired state is met
  • changed: Task was executed
  • failed: Task failed

Lets continue playbook for apache2

• Manual steps

sudo systemctl start apache2
sudo systemctl enable apache2
sudo apt install php libapache2-mod-php -y

• copy the test.php file
• Refer Here for the changes done.

Exercise:

• Install nginx , php and use the same test page.