don't clobber later revisions to hostapd.service.j2

roles/network/tasks/hostapd.yml

@@ -39,14 +39,23 @@
   set_fact:
     ap0_mac_addr: "{{ ap0_mac.stdout }}"
 
-- name: Use custom systemd unit file to start 'hostapd' service
+- name: Use custom 'hostapd' systemd service unit file using ap0 when wifi_up_down
   template:
     src: hostapd/hostapd.service.j2
     dest: /etc/systemd/system/hostapd.service
     owner: root
     group: root
     mode: 0644
-  when: discovered_wireless_iface != "none"
+  when: discovered_wireless_iface != "none" and wifi_up_down
+
+- name: Use custom 'hostapd' systemd service unit file for {{ discovered_wireless_iface }} when not wifi_up_down
+  template:
+    src: hostapd/hostapd.legacy.j2
+    dest: /etc/systemd/system/hostapd.service
+    owner: root
+    group: root
+    mode: 0644
+  when: discovered_wireless_iface != "none" and not wifi_up_down
 
 - name: Create /usr/bin/iiab-hotspot-on from template
   template:

roles/network/templates/hostapd/hostapd.legacy.j2

@@ -0,0 +1,12 @@
+[Unit]
+Description=Hostapd IEEE 802.11 AP, IEEE 802.1X/WPA/WPA2/EAP/RADIUS Authenticator
+Before=network.target
+Wants=network-pre.target
+
+[Service]
+Type=idle
+PIDFile=/run/hostapd.pid
+ExecStart=/usr/sbin/hostapd -P /run/hostapd.pid /etc/hostapd/hostapd.conf
+
+[Install]
+WantedBy=multi-user.target