Hybrid Cloud Backup System

Overview

This project implements a Hybrid Cloud Backup System using Bash scripting, Linux, Cron, and AWS S3.

The system automatically creates compressed backups of local files, stores them locally, uploads them to an AWS S3 bucket, logs backup activity, and removes old backups.

This demonstrates automation, cloud integration, and Linux scripting, which are key concepts used in DevOps environments.

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Features

• Automated backups using Bash scripting
• File compression using tar
• Upload backups to AWS S3
• Maintain logs for backup operations
• Automatically remove backups older than 7 days
• Scheduled execution using cron

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Technologies Used

• Linux (Ubuntu)
• Bash Scripting
• AWS CLI
• Amazon S3
• Cron Scheduler
• Git & GitHub

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Project Architecture

Local Server (Ubuntu)

data folder
      │
      ▼
backup.sh script
      │
      ▼
Create compressed backup (.tar.gz)
      │
      ▼
Store backup in local backups directory
      │
      ▼
Upload backup to AWS S3 bucket
      │
      ▼
Write logs to logs/backup.log

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Directory Structure

hybrid-cloud-backup-system
│
├── backup.sh        # Main backup automation script
├── data/            # Files to backup
├── backups/         # Local backup storage
├── logs/            # Backup logs
└── README.md        # Project documentation

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How the Script Works

1. The script reads files from the data directory
2. Files are compressed using tar
3. Backup file is stored in the backups directory
4. Backup is uploaded to AWS S3
5. Backup activity is recorded in log files
6. Old backups (older than 7 days) are automatically deleted

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Example Backup Command

tar -czf backup.tar.gz data/

This command compresses the data directory into a .tar.gz backup file.

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Cron Automation

The script can be scheduled using cron for automatic execution.

Example cron job:

0 11 * * * /home/hemanthhk/hybrid-cloud-backup/backup.sh

This runs the backup every day at 11:00 AM.

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AWS S3 Integration

Backups are uploaded to an AWS S3 bucket using the AWS CLI command:

aws s3 cp backup.tar.gz s3://your-bucket-name/

This ensures that backups are stored both locally and in the cloud.

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Author

Hemanth Kumar HV