Dockerfile for NextJS

if you use NPM

FROM node:lts as dependencies
WORKDIR /app
COPY package.json package-lock.json ./
RUN npm ci

FROM node:lts as builder
WORKDIR /app
COPY . .
COPY --from=dependencies /app/node_modules ./node_modules
RUN npm run build

FROM node:lts as runner
WORKDIR /app
ENV NODE_ENV production
# If you are using a custom next.config.js file, uncomment this line.
# COPY --from=builder /app/next.config.js ./
COPY --from=builder /app/public ./public
COPY --from=builder /app/.next ./.next
COPY --from=builder /app/node_modules ./node_modules
COPY --from=builder /app/package.json ./package.json

EXPOSE 3000
CMD ["npm", "start"]

if you use YARN

FROM node:lts as dependencies
WORKDIR /app
COPY package.json yarn.lock ./
RUN yarn install --frozen-lockfile

FROM node:lts as builder
WORKDIR /app
COPY . .
COPY --from=dependencies /app/node_modules ./node_modules
RUN yarn build

FROM node:lts as runner
WORKDIR /app
ENV NODE_ENV production
# If you are using a custom next.config.js file, uncomment this line.
# COPY --from=builder /app/next.config.js ./
COPY --from=builder /app/public ./public
COPY --from=builder /app/.next ./.next
COPY --from=builder /app/node_modules ./node_modules
COPY --from=builder /app/package.json ./package.json

EXPOSE 3000
CMD ["yarn", "start"]

Of the many experiments. Finally it worked using the above code.

I’ve tried several references, finally succeeded.

Happy coding.. ^_^