Dockerfile

# Install dependencies only when needed
FROM node:14-alpine AS deps

# Check https://github.com/nodejs/docker-node/tree/b4117f9333da4138b03a546ec926ef50a31506c3#nodealpine to understand why libc6-compat might be needed.
RUN apk add --no-cache libc6-compat

WORKDIR /app

COPY package.json ./

RUN npm install

# Rebuild the source code only when needed
FROM node:14-alpine AS builder

WORKDIR /app

COPY . .
COPY --from=deps /app/node_modules ./node_modules

RUN npm run build

# Production image, copy all the files and run next
FROM node:14-alpine AS runner

WORKDIR /app

ENV NODE_ENV production

#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
COPY --from=builder /app/entrypoint.sh ./entrypoint.sh
COPY .env.production .

RUN apk add --no-cache --upgrade bash
RUN chmod +x /app/entrypoint.sh
ENTRYPOINT ["/app/entrypoint.sh"]

RUN addgroup -g 1001 -S nodejs
RUN adduser -S nextjs -u 1001
RUN chown -R nextjs:nodejs /app/.next

USER nextjs

EXPOSE 3000
ENV PORT 3000

RUN npx next telemetry disable

CMD npm run start