hadolint/DL3043¶

ONBUILD, FROM or MAINTAINER triggered from within ONBUILD instruction.

Description¶

The ONBUILD instruction does not allow ONBUILD, FROM, or MAINTAINER as nested instructions. Using any of these within an ONBUILD trigger is an error and will cause a build failure.

Examples¶

Problematic code¶

ONBUILD ONBUILD /bin/true
ONBUILD FROM debian
ONBUILD MAINTAINER Ron Weasley

Reference¶

• hadolint/DL3043
• Dockerfile ONBUILD reference