In this video, you will learn about using dockerfile intstructions like below:
LABEL Add metadata to an image. Key-value pair, should put in between quotes.
HEALTHCHECK Tells docker ‘how to test a container’ - to check that it is still working.
STOPSIGNAL To kill the docker container immediately.
VOLUME To persist data between containers
EXPOSE To specify container listen on specific network port at runtime (TCP-default/UDP)
