重复阶段名称

目录

输出

Duplicate stage name 'foo-base', stage names should be unique

描述

定义多个同名阶段会导致错误，因为构建器无法唯一解析阶段名称引用。

示例

❌ 错误：builder 作为阶段名称被声明了两次。

FROM debian:latest AS builder
RUN apt-get update; apt-get install -y curl

FROM golang:latest AS builder

✅ 正确：阶段名称唯一。

FROM debian:latest AS deb-builder
RUN apt-get update; apt-get install -y curl

FROM golang:latest AS go-builder