podman image prune
Explanation:
Pruning unused images removes old or redundant EEs, optimizing storage and resource usage.

- name: Use dynamic inventory hosts: all
tasks:
- name: Show host variables debug:
var: hostvars[inventory_hostname]
Explanation:
Using hostvars in playbooks provides access to dynamically fetched variables for each host.

plugin: aws_ec2
regions:
- us-west-2 keyed_groups:
- key: tags.Name prefix: tag_
Explanation:
Using AWS EC2 tags to group hosts allows dynamic organization of cloud resources in inventories.

- name: Filter strings hosts: localhost vars:
items: ["web01", "db01", "web02"] tasks:
- name: Get web servers debug:
var: "{{ items | select('match', '^web') | list }}"
Explanation:
The select filter combined with match extracts list elements matching a specific regex pattern, allowing advanced filtering.

# test_playbook.yml
- name: Test webserver role hosts: localhost
roles:
- my_namespace.my_collection.roles.webserver
Explanation:
Playbooks referencing collection roles validate their functionality, ensuring roles are correctly structured and accessible.