更快的多平台建置：Dockerfile 交叉編譯指南
更快的多平台建置：Dockerfile 交叉編譯指南 方法 docker buildx create --use FROM --platform=linux/amd64 debian / FROM --platform=$BUILDPLATFORM debian 變數 BUILDPLATFORM — matches the current machine. (e.g. linux/amd64) BUILDOS — os component of BUILDPLATFORM, e.g. linux BUILDARCH — e.g. amd64, arm64, riscv64 BUILDVARIANT — used to set ARM variant, e.g. v7 TARGETPLATFORM — The value set with --platform flag on build TARGETOS - OS component from --platform, e.g. linux TARGETARCH - Architecture from --platform, e.g. arm64 TARGETVARIANT 範例 before FROM golang:1.17-alpine AS build WORKDIR /src COPY . . RUN go build -o /out/myapp . FROM alpine COPY --from=build /out/myapp /bin after FROM --platform=$BUILDPLATFORM golang:1.17-alpine AS build WORKDIR /src ARG TARGETOS TARGETARCH RUN --mount=target=. \ --mount=type=cache,target=/root/.cache/go-build \ --mount=type=cache,target=/go/pkg \ GOOS=$TARGETOS GOARCH=$TARGETARCH go build -o /out/myapp . FROM alpine COPY --from=build /out/myapp /bin
