Dockerfile

# Install dependencies only when needed
FROM node:16-buster-slim AS deps
WORKDIR /app

# Install dependencies based on the preferred package manager
COPY package.json yarn.lock* package-lock.json* pnpm-lock.yaml* ./
RUN if [ -f yarn.lock ]; then yarn --frozen-lockfile && yarn add sharp; \
    elif [ -f package-lock.json ]; then npm ci && npm i sharp; \
    elif [ -f pnpm-lock.yaml ]; then yarn global add pnpm && pnpm i --frozen-lockfile && pnpm add sharp; \
    else echo "Lockfile not found." && exit 1; \
    fi

# Rebuild the source code only when needed
FROM node:16-buster AS builder
# Install protobuf dependencires
RUN wget https://github.com/protocolbuffers/protobuf/releases/download/v21.12/protoc-21.12-linux-x86_64.zip && \
    unzip protoc-21.12-linux-x86_64.zip -d protoc && \
    mv protoc/bin/protoc /usr/local/bin/protoc && \
    chmod +x /usr/local/bin/protoc
RUN wget https://github.com/grpc/grpc-web/releases/download/1.4.2/protoc-gen-grpc-web-1.4.2-linux-x86_64 && \
    mv protoc-gen-grpc-web-1.4.2-linux-x86_64 /usr/local/bin/protoc-gen-grpc-web && \
    chmod +x /usr/local/bin/protoc-gen-grpc-web
RUN wget https://github.com/protocolbuffers/protobuf-javascript/releases/download/v3.21.2/protobuf-javascript-3.21.2-linux-x86_64.zip && \
    unzip protobuf-javascript-3.21.2-linux-x86_64.zip -d proto-js && \
    mv proto-js/bin/protoc-gen-js /usr/local/bin/protoc-gen-js
# Copy the app to build
WORKDIR /app
COPY --from=deps /app/node_modules ./node_modules
COPY . .

ENV NEXT_TELEMETRY_DISABLED=1

# Generate proto based files
RUN yarn gen
RUN yarn build

# Production image, copy all the files and run next
FROM node:16-buster-slim AS runner
WORKDIR /app

ENV NODE_ENV=production
ENV NEXT_TELEMETRY_DISABLED=1

RUN addgroup --system --gid 1001 nodejs
RUN adduser --system --uid 1001 nextjs

COPY --from=builder /app/public ./public

# Automatically leverage output traces to reduce image size
# https://nextjs.org/docs/advanced-features/output-file-tracing
COPY --from=builder --chown=nextjs:nodejs /app/.next/standalone ./
COPY --from=builder --chown=nextjs:nodejs /app/.next/static ./.next/static
COPY --from=builder --chown=nextjs:nodejs /app/.next/server ./.next/server

USER nextjs

EXPOSE 3000

ENV PORT=3000

CMD ["node", "server.js"]