I want to create 3 dummy nodes in k8s node1, node2 and node3. To create these nodes I should give the below values:

• name: node_name
• mac_address: mac_address
• public_ip: public_ip
• pod_cidr: pod_cidr

I have to create a condition that I should take node_name as key, based on node name k8s template has to choose the above values. How can I do this without using ansible k8s module?

I can do this for 1 node giving kubectl command in tasks and k8s template file in templates, but I want the template should be common for all the 3 nodes and it has to choose the values based on name.

template file:

  apiVersion: v1
  kind: Node
  metadata:
    name: node1
    annotations:
      # Provide the MAC address of the BIG-IP VXLAN tunnel
      flannel.alpha.coreos.com/backend-data: '{"VtepMAC":"{{ mac_address }}"}'
      flannel.alpha.coreos.com/backend-type: "vxlan"
      flannel.alpha.coreos.com/kube-subnet-manager: "true"
      # Provide the IP address you assigned as the BIG-IP VTEP
      flannel.alpha.coreos.com/public-ip: "{{ public_ip }}"
  spec:
    # Define the flannel subnet you want to assign to the BIG-IP device.
    # Be sure this subnet does not collide with any other Nodes' subnets.
    podCIDR: "{{ pod_cidr }}"```

tasks file:

---
- name: "Create node1 dummy node"
  command: kubectl apply --kubeconfig={{ kubeadmin_config }} -f templates/node1_dummy_node.yaml
  delegate_to: "{{groups['k8s-master-primary'][0]}}"
  run_once: true

Please help me create proper condition for this.