Ansible Roles & Best Practices

Understand role structure (tasks, handlers, templates, vars, defaults, meta)

Create Ansible roles using ansible-galaxy init command

Organize playbooks using roles instead of monolithic task lists

Use Ansible Galaxy to find and install community roles

Implement role dependencies in meta/main.yml

Distinguish between defaults/main.yml and vars/main.yml precedence

Create role library for TaskFlow stack (nginx, postgresql, redis)

Compose multiple roles into complete automation

Test roles independently before production use

Apply Ansible best practices (idempotency, documentation, variable naming)

Use role variables for multi-environment flexibility