routeros: Add verbose option to PoE MQTT script

roles/routeros/files/routeros-poe-mqtt-publish.sh

@@ -3,6 +3,11 @@
 set -eu
 umask 077
 
+_verbose=false
+if [ "${1:-}" = "-v" ]; then
+    _verbose=true
+fi
+
 community="public"
 tlsdir="$(openssl version -d | sed -e 's/^OPENSSLDIR: "\(.\+\)"$/\1/')"
 cafile="${tlsdir}/certs/ca.crt"
@@ -15,6 +20,7 @@ export LDAPTLS_CERT="$certfile"
 mqtt_send() {
     topic="$1"
     value="$2"
+    [ $_verbose ] && echo "Publishing data for ${topic}"
     mosquitto_pub -h mqtt02.home.foo.sh -t "$topic" -m "$value" \
         --cafile "$cafile" --key "$keyfile" --cert "$certfile"
 }
@@ -29,6 +35,7 @@ snmp_get() {
 if [ "${1:-}" != "-f" ]; then
     for state in /run/keepalived/*.state ; do
         if [ "$(cat "$state")" != "MASTER" ]; then
+            [ $_verbose ] && echo "Not running as master, skipping run"
             exit 0
         fi
         break