In this example, we build a new Docker image on top of cypress/included image, but we give all users read access to the folder /root where Cypress NPM package and Cypress binary are installed, see Dockerfile
As a second step, we set the environment variable CYPRESS_CACHE_FOLDER=/root/.cache/Cypress to ensure that every user can find the cached binary and use it to run tests.
You can build the cypress/example image and run current tests as built-in second user node (comes from Node base image) with:
$ ./build.sh
$ ./test.sh