https://towardsdatascience.com/how-to-use-jupyter-on-a-google-cloud-vm-5ba1b473f4c2

The simplest way to launch a notebook on GCP is to go through the workflow from the GCP console. Go to ML Engine (AI Platform) and click on Notebook Instances. You can create a new instance from the user interface:

Once the instance is launched, you can click on a link to open JupyterLab: