MAINTAINER (deprecated)
TheMAINTAINERinstruction sets theAuthorfield of the generated images.
TheLABELinstruction is a much more flexible version of this and you should use
it instead, as it enables setting any metadata you require, and can be viewed
easily, for example withdocker inspect. To set a label corresponding to theMAINTAINERfield you could use:
This will then be visible fromdocker inspectwith the other labels.