🚀 AutoSync.sh

A Docker-powered, automated cloud sync engine for Google Drive + Local Folder

Automatic • Containerized • Secure • Real-time File Synchronization
Runs everywhere with Docker. Keeps your Google Drive folder & local folder in perfect sync.

Features

1. Two-Way Sync (Local ↔ Google Drive)

• Local → Cloud upload
• Cloud → Local mirror download
• Runs every minute using cron

2. Automatic Log Rotation

• Compresses old logs
• Deletes old logs
• Prevents storage bloat

3. Fully Dockerized

• No cron or rclone setup on the host
• Works identically on macOS / Linux / Windows

4. Lightweight & Offline-Friendly

• Only syncs changed files
• Works without GUI
• Extremely low resource usage

Architecture

+------------------------------+
|        Docker Container       |
|------------------------------|
| Cron + Rclone + Scripts      |
+--------------+---------------+
               |
   Every minute| 
               ▼
  +--------------------------+
  | autosync.sh              |
  | Upload local → GDrive    |
  +--------------------------+
               |
               ▼
  +--------------------------+
  | rclone sync (mirror)     |
  | GDrive:backup → local    |
  +--------------------------+
               |
     Nightly at 12 AM
               ▼
  +--------------------------+
  | logrotate.sh             |
  | Compress + cleanup logs  |
  +--------------------------+

Project Structure

AutoSync/
├── Dockerfile
├── README.md
├── entrypoint.sh
├── scripts/
│   ├── autosync.sh
│   ├── logrotate.sh
│   └── crontab.txt
├── drive_folder/        # Google Drive mirror
├── local_folder/        # Upload source
├── logs/                # Script logs
└── .gitignore

Installation Guide

1. Clone the Repository

git clone git@github.com:AshutoshThings/AutoSync.sh.git
cd AutoSync.sh

2. Build Docker Image

docker build -t autosync .

3. Run Container

docker run -it --name autosync-container autosync

4. Configure Rclone (do it very carefully)

rclone config
new remote           > n
Storage              > 18 (for google drive)
client ID            > skip
Scope                > 1
edit advanced config > n
use auto config      > n
config this as shared drive > n
keep this "gdrive2024(whatever name you gave)" remote > y
save this config and for verification of rclone with google drive you will have to execute a command something like this rclone authorize "drive" "eyJzY...." into your computer terminal which will pop up your browser which then you will have to verify with your login credentials then you go back to the termianl and you will get long random text some like this : Paste the following into your remote machine --->
eyJ0b2tlX............2KzA1OjMwXCIsXCJleHBpcmVzX2luXCI6MzU5OX0ifQ
<---End paste

copy this and paste into your terminal to authenticate yourself to rclone.

Test yourself

rclone ls gdrive2024:

If you see files → you're done.

5. Exit & Start as Background Service

exit
docker start autosync-container

Logs:

docker logs -f autosync-container

Scripts Overview

autosync.sh

• Uploads changed files
• Writes logs
• Handles network errors

logrotate.sh

• Compresses yesterday’s logs
• Deletes logs older than N days
• Keeps container storage clean

crontab.txt

• Defines all jobs (sync & log rotation)

entrypoint.sh

• Starts cron in the foreground.

Security Considerations

• Rclone config stored inside container only
• Tokens can be revoked any time from Google Security Dashboard

Testing

Test syncing upload:

echo "hello" > local_folder/test.txt

Within 1 minute: test.txt should appear in Google Drive.

Test download mirror:

Add a file in Google Drive → backup folder → it appears automatically in drive_folder/

---

License - Unlicense

It is free bro, do whatever you want with it. if you liked this, just give it a star, that's all.