auto backup and send via telegram

backup/backup.sh

@@ -0,0 +1,30 @@
+#!/bin/sh
+echo 'started the backup'
+# Telegram API URL
+TELEGRAM_API="https://api.telegram.org/bot${TELEGRAM_BOT_TOKEN}/sendDocument"
+
+# Generate timestamp
+TIMESTAMP=$(date +%Y%m%d_%H%M%S)
+BACKUP_FILE="backup_${TIMESTAMP}.sql"
+ZIP_FILE="backup_${TIMESTAMP}.zip"
+
+# Create backup
+pg_dump -h $PG_HOST -p $PG_PORT -U $PG_USER -d $PG_DATABASE > /backups/$BACKUP_FILE
+
+# Check if backup succeeded
+if [ $? -ne 0 ]; then
+  echo "Backup failed!"
+  exit 1
+fi
+
+# Zip the backup
+zip -j /backups/$ZIP_FILE /backups/$BACKUP_FILE
+
+# Send to Telegram
+curl -F chat_id=$TELEGRAM_CHAT_ID \
+     -F document=@/backups/$ZIP_FILE \
+     $TELEGRAM_API
+
+# Cleanup (keep last 3 backups)
+ls -t /backups/*.zip | tail -n +4 | xargs rm -f
+ls -t /backups/*.sql | tail -n +4 | xargs rm -f