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Warn about ARG instructions that do not specify a variable name #45

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rcjsuen opened this issue May 28, 2018 · 0 comments
Closed

Warn about ARG instructions that do not specify a variable name #45

rcjsuen opened this issue May 28, 2018 · 0 comments
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rcjsuen commented May 28, 2018

ARG instructions must have a name specified.

FROM scratch
ARG =value
$ docker build .
Sending build context to Docker daemon  1.774MB
Error response from daemon: Dockerfile parse error line 2: ARG names can not be blank

We should add support for this in the validator.

$ docker run -v `pwd`/Dockerfile:/Dockerfile rcjsuen/dockerfile-utils lint /Dockerfile
$
@rcjsuen rcjsuen self-assigned this May 28, 2018
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