Explain & lint templates/hostapd/iiab-test-wifi.j2

adm-run-roles-tmp.yml

@@ -0,0 +1,15 @@
+---
+- hosts: all
+  become: yes
+
+  vars_files:
+  - vars/default_vars.yml
+  - vars/{{ ansible_local.local_facts.os_ver }}.yml
+  - /etc/iiab/local_vars.yml
+  - /etc/iiab/iiab_state.yml
+
+  roles:
+    - { role: 0-init }
+    - { role: captiveportal }
+    - { role: lokole }
+    - { role: network }

roles/network/templates/hostapd/iiab-test-wifi.j2

@@ -1,4 +1,17 @@
 #!/bin/sh
+
+# 2023-04-24 PR #3542 / PR #3549 context:
+# "systemd-network" "RasPiOS" have files with the client wifi info within them,
+# those can be parsed for the ssid without needing the related service running
+# first.
+# "Netplan systemd" "NetworkManager" need to be running to be able to parse for
+#  the ssid, from the generated config file for "Netplan systemd" and from the
+# running environment for "NetworkManager".
+# "iiab-wifi-test.service" acts as a bit of a traffic cop keeping the ordering
+# of the services more deterministic when active and tries to catch a channel
+# mismatch between client wifi's current setting and what is contained within
+# hostapd.conf early in the boot process.
+
 IFACE={{ discovered_wireless_iface }}
 NETPLAN=0
 SSID=""
@@ -87,8 +100,8 @@ if [ -z "$FREQ2" ]; then
 fi
 
 # ubuntu on boot exits at this point timing - issue with wpa_cli and scanning
-CHAN=$((FREQ2 - 2407 ))
+CHAN=$((FREQ2 - 2407))
-CHAN=$((CHAN / 5 ))
+CHAN=$((CHAN / 5))
 echo "channel is $CHAN for $SSID"
 HOSTAPD=$(grep channel /etc/hostapd/hostapd.conf | awk -F = '{print $2}')
 echo "Hostapd set for $HOSTAPD"
@@ -99,5 +112,3 @@ if [ "$CHAN" -ne "$HOSTAPD" ]; then
     /bin/systemctl --no-block restart hostapd
     echo "Restarted hostapd"
 fi
-
-exit 0