sudo apt install ansible
2.9
ansible-playbook -i inventory/hosts.yml helloworld.yml
ansible-playbook -i inventory/hosts.yml updates.yml
ansible-playbook -i inventory/hosts.yml webserver.yml
ansible -i inventory/hosts.yml all -m ping
https://docs.ansible.com/ansible/latest/collections/ansible/builtin/index.html
https://docs.ansible.com/ansible/2.9/user_guide/intro_inventory.html
https://docs.ansible.com/ansible/2.9/user_guide/playbooks_reuse_roles.html
https://docs.ansible.com/ansible/2.9/user_guide/playbooks_variables.html
https://docs.ansible.com/ansible/2.9/reference_appendices/special_variables.html