feat(ansible): add checks for verify kube-vip nic exists

Signed-off-by: Devin Buhl <devin@buhl.casa>

provision/ansible/requirements.yml

@@ -6,6 +6,8 @@ collections:
     version: 1.2.1
   - name: ansible.posix
     version: 1.3.0
+  - name: ansible.utils
+    version: 2.6.1
 roles:
   - src: xanmanning.k3s
     version: v3.1.2

provision/ansible/roles/ubuntu/tasks/checks.yml

@@ -0,0 +1,17 @@
+---
+- name: Check if network interface provided for kube-vip is valid
+  ansible.builtin.assert:
+    that:
+      - ansible_{{ kubevip_interface }}.device is defined
+      - ansible_{{ kubevip_interface }}['ipv4']['address'] | ansible.utils.ipaddr('{{ ansible_host }}')
+    success_msg: |-
+      kube-vip is able to use {{ kubevip_interface }} for this node
+    fail_msg: |-
+      This node does not have a network interface called {{ kubevip_interface }}.
+
+      You either provided the wrong BOOTSTRAP_KUBE_VIP_INTERFACE value or your nodes have different network interface names.
+
+      See this link on how to set static interface names across your nodes by using netplan
+      https://askubuntu.com/a/1317043
+  when:
+    "'master' in group_names"

provision/ansible/roles/ubuntu/tasks/main.yml

@@ -1,4 +1,8 @@
 ---
+- include: checks.yml
+  tags:
+    - checks
+
 - include: locale.yml
   tags:
     - locale