# syntax = docker/dockerfile:experimental
FROM node:alpine as builder
RUN --mount=type=cache,target=/app/node_modules,id=my_app_npm_module,sharing=locked \
--mount=type=cache,target=/root/.npm,id=npm_cache \
npm i --registry=https://registry.npm.taobao.org
RUN --mount=type=cache,target=/app/node_modules,id=my_app_npm_module,sharing=locked \
# --mount=type=cache,target=/app/dist,id=my_app_dist,sharing=locked \
# COPY --from=builder /app/dist /app/dist
# 为了更直观的说明 from 和 source 指令,这里使用 RUN 指令
RUN --mount=type=cache,target=/tmp/dist,from=builder,source=/app/dist \
# --mount=type=cache,target/tmp/dist,from=my_app_dist,sharing=locked \
mkdir -p /app/dist && cp -r /tmp/dist/* /app/dist