Here is a quick guide on n8n. See also:

Quick guide to Docker
Quick guide to Gnuplot
Quick guide to CVS
Quick guide to nawk
Quick guide to Emacs
Quick guide to Git
Quick guide to NSCC ASPIRE2A

To run n8n from a docker container, first pull the n8n container.

docker pull n8nio/n8n

Set up a persistent storage for the n8n container.

docker volume create n8n_data

Run the n8n docker container.

docker run -it --rm --name n8n -p 5678:5678 -v n8n_data:/home/node/.n8n docker.n8n.io/n8nio/n8n

You can now access n8n on the following local url: http://localhost:5678