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MAINTAINER instruction is deprecated in favor of using label.
PropertyValue
SeverityWarning
CategoryBest Practice
DefaultEnabled
Auto-fixYes (--fix)

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Description

The MAINTAINER instruction, used historically for specifying the author of the Dockerfile, is deprecated. To set author metadata for an image, use the org.opencontainers.image.authors OCI label instead.

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Examples

Bad: 
MAINTAINER moby@example.com
Good: 
LABEL org.opencontainers.image.authors="moby@example.com"

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Auto-fix

The fix replaces MAINTAINER with an equivalent org.opencontainers.image.authors label. 
# Before
MAINTAINER John Doe <john@example.com>

# After (with --fix)
LABEL org.opencontainers.image.authors="John Doe <john@example.com>"

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Supersedes

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Reference