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buildkit/RedundantTargetPlatform

Setting platform to predefined $TARGETPLATFORM in FROM is redundant as this is the default behavior.

Property Value
Severity Info
Category Best Practice
Default Enabled

Description

A custom platform can be used for a base image. The default platform is the same platform as the target output, so setting the platform to $TARGETPLATFORM is redundant and unnecessary.

Examples

Bad:

FROM --platform=$TARGETPLATFORM alpine AS builder
RUN apk add --no-cache git

Good:

FROM alpine AS builder
RUN apk add --no-cache git

Reference