Use ansible ipath to derive /31 and /127 from the guest index

roles/bhyve-network/tasks/main.yml

@@ -0,0 +1,29 @@
+---
+- name: Describe guest interface
+  sysrc:
+    name: 'ifconfig_vmnet{{ item.index }}_descr'
+    value: 'VM {{ item.name }}'
+  loop_control:
+    label: '{{ item.name }} : vmnet{{ item.index }}'
+  with_items: '{{ bhyve_guests }}'
+
+- name: Set host IPv4 addresses
+  sysrc:
+    name: 'ifconfig_vmnet{{ item.index }}'
+    value: 'inet {{ bhyve_ipv4 | ipmath(2 * item.index)}}/31'
+  with_items: '{{ bhyve_guests }}'
+
+- name: Set host IPv6 addresses
+  sysrc:
+    name: 'ifconfig_vmnet{{ item.index }}_ipv6'
+    value: 'inet6 {{ bhyve_ipv6 | ipmath(2 * item.index)}}/127'
+  with_items: '{{ bhyve_guests }}'
+
+- name: Add guest interfaces
+  sysrc:
+    name: cloned_interfaces
+    state: append
+    value: 'vmnet{{ item.index }}'
+  loop_control:
+    label: '{{ item.name }} : vmnet{{ item.index }}'
+  with_items: '{{ bhyve_guests }}'