You must have Docker installed on your computer before you can install the Docker image for JupyterLab.
Select and download the appropriate Docker for your operating system:
Operating system Docker Link macOS https://docs.docker.com/docker-for-mac/install/ Windows https://docs.docker.com/docker-for-windows/install/ Linux https://docs.docker.com/install/linux/docker-ce/ubuntu/
Follow the instructions on the above site to install Docker on your computer.
For questions about installing Docker on your computer, contact Docker for support.