Dockerfile

FROM node:16.16.0-alpine3.15 AS base

# Install dependencies only when needed
FROM base 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 package-lock.json ./
COPY npm npm
RUN npm install --legacy-peer-deps

# Rebuild the source code only when needed
FROM base AS builder
WORKDIR /app
COPY . .
COPY --from=deps /app/npm ./npm
COPY --from=deps /app/node_modules ./node_modules
RUN npm run build && npm install --legacy-peer-deps --production --ignore-scripts --prefer-offline

# Production image, copy all the files and run next
FROM base AS runner
WORKDIR /app

ENV NODE_OPTIONS="--max-http-header-size=81920"
ENV NODE_ENV production

RUN addgroup -g 1001 -S nodejs
RUN adduser -S nextjs -u 1001

COPY --from=builder /app/public ./public
COPY --from=builder --chown=nextjs:nodejs /app/.next ./.next
COPY --from=builder /app/npm ./npm
COPY --from=builder /app/node_modules ./node_modules
COPY --from=builder /app/package.json ./package.json

USER nextjs

EXPOSE 5225

# Next.js collects completely anonymous telemetry data about general usage.
# Learn more here: https://nextjs.org/telemetry
# Uncomment the following line in case you want to disable telemetry.
ENV NEXT_TELEMETRY_DISABLED 1

CMD ["npm", "start"]