netplan systemd-networkd static support

roles/2-common/tasks/packages.yml

@@ -61,6 +61,7 @@
     - bzip2
     - i2c-tools
     - bridge-utils
+    - netmask
     - usbutils
     - hostapd
     - wget

roles/network/tasks/sysd-netd-debian.yml

@@ -28,6 +28,18 @@
     state: stopped
   when: is_ubuntu_18
 
+- name: Static IP computing CIDR
+  shell: netmask {{ wan_ip }}/{{ wan_netmask }} | awk -F "/" '{print $2}'
+  when: wan_ip != "dhcp"
+  register: CIDR
+
+- name: Supply static template
+  template:
+    dest:  /etc/netplan/50-cloud-init.yaml
+    src: network/cloud-init.j2
+    backup: yes
+  when: wan_ip != "dhcp"
+
 - name: Reload systemd
   systemd:
     daemon_reload: yes

roles/network/templates/network/cloud-init.j2

@@ -0,0 +1,11 @@
+network:
+    ethernets:
+        {{ iiab_wan_iface }}:
+            dhcp4: false
+            dhcp6: false
+            addresses: [{{ wan_ip }}/{{ CIDR.stdout }}]
+            gateway4: {{ wan_gateway }}
+            nameservers:
+               addresses: [{{ wan_nameserver }}]
+            optional: true
+    version: 2