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StageNameCasing

_vendor/github.com/moby/buildkit/frontend/dockerfile/docs/rules/stage-name-casing.md

18.09-release456 B
Original Source

Output

text
Stage name 'BuilderBase' should be lowercase

Description

To help distinguish Dockerfile instruction keywords from identifiers, this rule forces names of stages in a multi-stage Dockerfile to be all lowercase.

Examples

❌ Bad: mixing uppercase and lowercase characters in the stage name.

dockerfile
FROM alpine AS BuilderBase

✅ Good: stage name is all in lowercase.

dockerfile
FROM alpine AS builder-base