Merge pull request #2470 from jvonau/no_iiab

No /etc/network/interfaces.d/iiab [fixes RPi 3 B+, allowing WiFi firmware & hostapd to launch reliably on boot]

roles/network/tasks/rpi_debian.yml

@@ -41,6 +41,12 @@
     dest: /etc/network/interfaces.d/iiab
     src: network/rpi.j2
     #src: network/iiab.j2    2019-02-05: caused ./iiab-network to fail repeatedly in recent days on one particular RPi 3, even after reboot ("Unable to start service networking: Job for networking.service failed..." at "Restart the networking service if appropriate") ...leaving dnsmasq off (#1452)
+  when: iiab_wired_lan_iface is defined
+
+- name: Use bind-dynamic for dnsmasq
+  template:
+    dest: /etc/dnsmasq.d/dnsmasq-iiab
+    src: network/dnsmasq-iiab
   when: iiab_lan_iface == "br0"
 
 - name: Stopping services
@@ -60,6 +66,7 @@
     name: networking
     enabled: yes
     state: restarted
+  when: iiab_wired_lan_iface is defined
 
 - name: Restart hostapd when WiFi is present but not when using WiFi as gateway 
   systemd:

roles/network/templates/network/dnsmasq-iiab

@@ -1,7 +1,11 @@
 #IIAB
+{% if is_raspbian %}
+bind-dynamic
+{% else %}
 bind-interfaces
-# Wan nameserver if manually set
+{% endif %}
 {% if wan_nameserver is not none %}
+# Wan nameserver if manually set
 no-resolv
 server={{ wan_nameserver }}
 {% endif %}