Using local GatbsyJS

[ThiagoMiranda]

Hi.. I've tried the example command and it worked nicely:
`docker run -it --rm -v $(pwd)/site:/site -p 8000:8000 aripalo/gatsby-docker develop``

But when I try to build my own GatsbyJS project:
docker run -it --rm -v $(pwd)/.:/site -p 8000:8000 aripalo/gatsby-docker develop or build it fails with an error:

Do you have any idea of what's happening? Basically I just wish to build a public folder ( using gatsby build ) with docker.

Thanks!