How to Install Duplicati on Ubuntu 24.04

Duplicati is an open-source backup solution that allows you to create secure, encrypted, and automated backups to local storage or a wide variety of cloud services.
It provides a simple web interface for managing backup jobs while keeping your data encrypted and deduplicated to save bandwidth and space.

Running Duplicati inside a Docker container gives you a lightweight, isolated environment that is easy to maintain and update.
The steps below show how to install Duplicati on Ubuntu 24.04 using Docker.

Install Docker

Duplicati will run as a Docker container, so you first need Docker installed on your system.

Update your package list and install Docker with:

Enable and start the Docker service so it runs automatically:

You can check that Docker is running correctly with:

Create Directories for Duplicati

Create folders on the host to store backups and configuration files so that data persists even if the container is removed or updated:

Pull the Duplicati Image

Next, download the latest Duplicati Docker image from Docker Hub:

This ensures you are using the most recent stable release.

Run the Duplicati Container

Start the container and map port 8200 (Duplicati’s web interface) to the host:

Explanation of options

• -p 8200:8200 – Exposes the web interface on port 8200.

• -v /opt/duplicati/backups:/backups – Stores your actual backup files on the host.

• -v /opt/duplicati/config:/config – Keeps Duplicati’s settings and schedules persistent.

• -e DUPLICATI_PASS=… – Sets the web interface password (replace with your own secure password).

• --restart unless-stopped – Automatically restarts the container if the system reboots.

Access the Web Interface

Once the container is running, open a browser and go to:

Log in with:

• Username: admin

• Password: the value you set in DUPLICATI_PASS.