add notification and update aws-backup (the changes will come soon)

notification/disk-monitor.sh

@@ -0,0 +1,19 @@
+    #!/bin/bash
+
+    source /etc/serverconfig/.env
+
+    disk_usage() {
+        df -h / | grep / | awk -v max="$1" '{
+            usage = $5;
+            gsub("%", "", usage);
+            if (usage > max) {
+                printf "<b>🚨 WARNING:</b>\nDisk usage is at %d%%. which exceed the treshold of %d%%.\n\n", usage, max;
+            } 
+            printf "<b>💾 Disk Usage Information:</b>\nTotal Size: %s, Used: %s, Available: %s\n\n", $2, $3, $4;
+        }'
+    }
+
+    curl -X POST "https://api.telegram.org/bot$TOKEN/sendMessage" \
+        -d "chat_id=$CHAT_ID" \
+        -d "text=$(disk_usage 80)" \
+        -d "parse_mode=HTML"