---
- name: Check the health of all servers
  hosts: all
  tasks:
  - name: Check if server is reachable
    ping:
    register: result
    ignore_errors: true

  - name: Print result
    debug:
      var: result
    when: result is defined

  - name: Print error message
    debug:
      msg: "Server {{ inventory_hostname }} could not be reached."
    when: result.ping is undefined