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Moritz Röhrich edited this page 2026-04-30 11:18:54 +02:00
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MAINTAINER is deprecated

Problematic code:

FROM busybox
MAINTAINER Lukas Martinelli <me@lukasmartinelli.ch>

Correct code:

FROM busybox
LABEL maintainer="Lukas Martinelli <me@lukasmartinelli.ch>"

Better yet, adhere to the predefined OCI labels keys:

LABEL org.opencontainers.image.authors="Lukas Martinelli <me@lukasmartinelli.ch>"

Rationale:

MAINTAINER is deprecated since Docker 1.13.0: https://docs.docker.com/engine/deprecated/#maintainer-in-dockerfile