vackup-docker-extension

This repository contains a Docker Extension that backups Docker volumes. This extension is purely a demonstration of how it'd be to convert the Vackup project by Bret Fisher into a Docker Extension. This example is part of the YouTube Livestream Introducing Docker Extensions hosted by Bret Fisher.

Installation

Install Docker Extension with the Extensions CLI.

  docker extension install felipecruz/vackup-docker-extension:latest

Run Locally

Clone the project

  git clone https://github.com/felipecruz91/vackup-docker-extension.git

Go to the project directory

  cd vackup-docker-extension

Build the extension

  docker build -t felipecruz/vackup-docker-extension:latest .

Install the extension

  docker extension install felipecruz/vackup-docker-extension:latest

Developing the frontend

  cd ui
  npm install
  npm start

This starts a development server that listens on port 3000.

You can now tell Docker Desktop to use this as the frontend source. In another terminal run:

  docker extension dev ui-source felipecruz/vackup-docker-extension:latest http://localhost:3000

In order to open the Chrome Dev Tools for your extension when you click on the extension tab, run:

  docker extension dev debug felipecruz/vackup-docker-extension:latest

Each subsequent click on the extension tab will also open Chrome Dev Tools. To stop this behaviour, run:

  docker extension dev reset felipecruz/vackup-docker-extension:latest

Known issues

• Exporting large volumes fail at the moment with a toast error that says ERR_CHILD_PROCESS_STDIO_MAXBUFFER.

Acknowledgements

• Vackup: Backup and Restore Docker Volumes

License

MIT