我是Next.js和Docker的新手。我试图实现的是用Docker部署一个Next.js项目。我正在创建Dockerfile和docker-compose.yml文件。但是，该项目有一些自定义包，它在源文件夹之外使用（在根级别上）。我的构建步骤失败了，因为它不能解析这些包。
COPY

这是汇入的外观

import Theme, { theme } from '@custompackage/themes/src/Simply';
import {
  Navbar,
  Copyright,
  Welcome,
  Services,
  About,
  Pricing,
  Clients,
  Contact,
} from '@custompackage/themes/src/Simply/containers';

import preview from '@custompackage/themes/src/Simply/assets/preview.jpg';

这是我的Dockerfile

# Install dependencies only when needed

FROM node:16-alpine AS deps

WORKDIR /opt/app
COPY package.json yarn.lock ./
RUN yarn install --frozen-lockfile

# Rebuild the source code only when needed

# This is where because may be the case that you would try

# to build the app based on some `X_TAG` in my case (Git commit hash)

# but the code hasn't changed.

FROM node:16-alpine AS builder

ENV NODE_ENV=production
WORKDIR /opt/app
COPY . .
COPY --from=deps /opt/app/node_modules ./node_modules
RUN yarn build

# Production image, copy all the files and run next

FROM node:16-alpine AS runner

ARG X_TAG
WORKDIR /opt/app
ENV NODE_ENV=production
COPY --from=builder /opt/app/next.config.js ./
COPY --from=builder /opt/app/public ./public
COPY --from=builder /opt/app/.next ./.next
COPY --from=builder /opt/app/node_modules ./node_modules
CMD ["node_modules/.bin/next", "start"]

文件夹结构

我试过在构建步骤之前使用Dockerfile中的COPY命令将包内容复制到/opt/app文件夹中，这样就可以解析它们。但是，我不确定我是否做对了，一直没有结果。