new: [send] add IP of host in notif tags

docker-host/src/bin/send

@@ -39,6 +39,7 @@ for var in SERVER LOGIN PASSWORD; do
     fi
 done
 
+IP_HOST=$(hostname -I | cut -d' ' -f1)
 
 exname=${0##*/}
 channels=()
@@ -125,6 +126,7 @@ curl_opts=(
 title="[$(hostname)] $title"
 title="${title%%+([[:space:]])}"
 curl_opts+=(-H "Title: $title")
+curl_opts+=(-H "Tags: $IP_HOST")
 
 declare -A sent_topic=()