Remove trailing dot from hostname

Author: dkokkino

templates/common/_base/files/usr-local-bin-mco-hostname.yaml

@@ -20,9 +20,11 @@ contents:
         do
             sleep 1
         done
-        echo "node identified as $(</proc/sys/kernel/hostname)"
+        HOSTNAME="$(</proc/sys/kernel/hostname)"
+        CLEAN_HOSTNAME="${HOSTNAME%.}" 
+        echo "node identified as $CLEAN_HOSTNAME"
         echo "saving hostname to prevent NetworkManager from ever unsetting it"
-        hostnamectl set-hostname --static --transient $(</proc/sys/kernel/hostname)
+        hostnamectl set-hostname --static --transient "$CLEAN_HOSTNAME"
         exit 0
     }