MaintainerDeprecated

Output

MAINTAINER instruction is deprecated in favor of using label

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.

Examples

❌ Bad: don't use the MAINTAINER instruction

MAINTAINER moby@example.com

✅ Good: specify the author using the org.opencontainers.image.authors label

LABEL org.opencontainers.image.authors="moby@example.com"