Dockerfile

# syntax=docker/dockerfile:1

#
# Base dependencies
#
FROM node:25-alpine AS deps
WORKDIR /app
COPY package.json package-lock.json ./
RUN npm ci --ignore-scripts

#
# Build application
#
FROM node:25-alpine AS builder
WORKDIR /app
COPY --from=deps /app/node_modules ./node_modules
COPY . .
ENV NEXT_TELEMETRY_DISABLED=1
RUN npm run build

#
# Runtime image
#
FROM node:25-alpine AS runner
WORKDIR /app
ENV NODE_ENV=production \
    PORT=3000 \
    NEXT_TELEMETRY_DISABLED=1

RUN addgroup -S nodejs && adduser -S nextjs -G nodejs

# Copy only what is needed to run
COPY --from=builder /app/public ./public
COPY --from=builder /app/.next ./.next
COPY --from=builder /app/package.json ./package.json
COPY --from=deps /app/node_modules ./node_modules

EXPOSE 3000
USER nextjs

CMD ["npm", "run", "start"]