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How to do it...

Create a new Ansible playbook called ansible_tags.yml, as shown here:

---
  - name: Using Ansible Tags
    hosts: cisco
    gather_facts: no
    tasks:
      - name: Print OSPF
        debug:
          msg: "Router {{ hostname }} will Run OSPF"
        tags: [ospf, routing]

     - name: Print BGP
       debug:
         msg: "Router {{ hostname }} will Run BGP"
       tags:
         - bgp
         - routing

     - name: Print NTP
       debug:
         msg: "Router {{ hostname }} will run NTP"
       tags: ntp

Run the playbook as shown here:

$ ansible-playbook ansible_tags.yml -i hosts --tags routing

Run the playbook again, this time using tags, as shown here:

$ ansible-playbook ansible_tags.yml -i hosts --tags ospf

$ ansible-playbook ansible_tags.yml -i hosts --tags routing