Draft: fix to run npm command in a local container if npm is not available
This builds a image via CI and locally. The image contains required dependencies to
run the npm commands
start in the container. reveal.js uses
Puppeteer, which requires chrome/chromium. Chrome/chromium is also the
--cap-add=SYS_ADMIN, otherwise it will crash. An option
would be to use
--no-sandbox, but that needs patching
Puppeteer/reveal.js. Using the container registry requires a login, when building the image locally we can run
./run-server.sh and only needs Docker.
Also replaces deprecated
only keyword with
rules in gitlab ci.