Wrong error when creating a docker file that is using a base image from an argument

[baruchoxman]

I have created a docker file that gets the base image name from a variable:

ARG BASE_IMAGE=my-image:base

# Use the base image
FROM $BASE_IMAGE
...

And I get the following error:

Issues: 1

Line 4: FROM $BASE_IMAGE
Issue  Category      Title                 Description
    1  Clarity       Base Image Missing    Base images should specify a tag to use.
                     Tag

[make-github-pseudonymous-again]

This is a duplicate of:

• Warning at multistage build #100

Which was fixed with:

• Better support for base image detection with multi-stage Dockerfiles #151

However there has not been a new release since #151 was merged which is why the bug can still be reproduced. See:

• Active status & maintainers ? #192