- name: Purge host from known hosts
  hosts: localhost
  gather_facts: no
  tasks:
    - command: ssh-keygen -f ~/.ssh/known_hosts -R [{{ item }}]:{{ hostvars[hostname].ansible_port }}
      with_items:
        - "{{ hostvars[hostname].ansible_host }}"
        - r3-{{ hostname }}
        - r3g-{{ hostname }}
        - r3e-{{ hostname }}
        - "{{ hostvars[hostname].network_cooked.primary.ip }}"