How to reference ARG, ENV variables when it been used in FROM, COPY, ADD commands while evaluating rules #123
Description
Is your feature request related to a problem? Please describe.
Say suppose, user has written following snippet for the image registry url in FROM command by leveraging the ARG/ENV variable
ARG foo_image=xyzz.web.com/reg/foo ARG foo_version=latest FROM $foo_image:$foo_version
The following rule can't extract the variable value to match the rule. Is there any direct way or alternate solution to look for variable references and use its value while evaluating the rule?
warn_latest_tag[msg] { docker.froms[from] val := split(from, ":") contains(val[1], image_tag_list[_]) msg = sprintf("%s: Do not use latest tag with image (%s). More info: %s", [check03, from, l.get_url(check03)]) }
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