Installing and running the website locally via docker-compose on the command-line on OSX

[floehopper]

I didn't want to install the Docker desktop app and managed to get the site running locally using the following commands. I don't really know what I'm doing, so I might well have done something foolish, but I wonder whether it would be useful to include some instructions along these lines to the README?

$ brew install docker-compose
$ docker-machine create default
$ docker-machine start default
$ docker-machine env default
$ eval "$(docker-machine env default)"
$ docker-compose up -d
$ docker-machine ssh default -L 0.0.0.0:18080:localhost:18080

Notes

• I actually installed docker-machine separately first, but I think it's a dependency of docker-compose, so I think installing the latter will install the former.
• I suspect this might only have worked because I already having VirtualBox installed, because docker-machine used the virtualbox driver to create the VM.
• I'm not very familiar with docker-compose, but as far as I can see this whole sequence creates and runs a VM which in turn uses Docker to run three containers: assets, db & wordpress.
• The VM and the containers all seem to use the filesystem on the host system and so I can make changes to files on the host system and see the changes on the local version of the website.
• I assume this call to gulp watch will update the relevant CSS/JS files if changes are made to the source files.
• I had to use port-forwarding from the host to the VM to gain access to the local version of the website, presumably the actual application ports are protected by a firewall on the VM or maybe I was just using the wrong IP address...?

Please let me know if I've misunderstood any of the above.

[floehopper]

It would be good to have some answers to my questions above, but I'm now trying to setup the development environment from scratch using Docker for Mac and have run into a more fundamental problem, so I'm going to close this one.