kubespray/tests/testcases/030_check-network.yml

---
- hosts: node1

  tasks:

  - name: Get pod names
    shell: "/usr/local/bin/kubectl get pods -o json"
    register: pods

  - set_fact:
      pod_names: "{{ (pods.stdout | from_json)['items'] | map(attribute = 'metadata.name') | list }}"
      pod_ips: "{{ (pods.stdout | from_json)['items'] | map(attribute = 'status.podIP') | list }}"

  - name: Check pods IP are in correct network
    assert:
      that: item | ipaddr(kube_pods_subnet)
    with_items: pod_ips


  - name: Ping between pods is working
    shell: "/usr/local/bin/kubectl exec {{pod_names[0]}} -- ping -c 4 {{ pod_ips[1] }}"