github.com/jlmeeker/kismatic@v1.10.1-0.20180612190640-57f9005a1f1a/ansible/roles/preflight/tasks/random_ping.yaml (about)

     1  ---
     2    - name: verify worker to worker node connectivity using IP
     3      command: ping -c 2 {{ item }}
     4      with_random_choice: "{{ groups['worker']|map('extract', hostvars, 'internal_ipv4')|list }}"
     5    - name: verify worker to worker node connectivity using hostname
     6      command: ping -c 2 {{ item }}
     7      with_random_choice: "{{ groups['worker']|map('extract', hostvars, 'internal_ipv4')|list }}"