chore: add backup.sh script

scripts/backup/backup.sh

@@ -0,0 +1,20 @@
+#!/bin/bash
+
+# get the current datetime and create a directory with that name
+NOW=$(date +"%Y-%m-%d_%H-%M-%S")
+mkdir -p /opt/backup/$NOW
+
+# copy all files in directory to the backup directory
+cp -r /root/Portfolio/data-backend /opt/backup/$NOW
+
+# run pg_dump to backup the database
+pg_dump postgresql://DB_USERNAME:DB_PASSWORD@localhost:5432/DATABASE > /opt/backup/$NOW/db.sql
+
+# compress the backup directory
+tar -zcvf /opt/backup/$NOW.tar.gz /opt/backup/$NOW
+
+# remove the uncompressed backup directory
+rm -rf /opt/backup/$NOW
+
+# scp the backup to the remote server
+scp /opt/backup/$NOW.tar.gz USERNAME@SERVER_IP:/home/zalohy/backups/$NOW.tar.gz