Dockerfile

# --------------------- deps stage ---------------------
FROM node:20-alpine@sha256:b88333c42c23fbd91596ebd7fd10de239cedab9617de04142dde7315e3bc0afa AS deps
WORKDIR /app
ENV NEXT_TELEMETRY_DISABLED=1

COPY package.json package-lock.json* npm-shrinkwrap.json* ./

RUN npm install --no-audit --no-fund

# --------------------- builder stage ---------------------
FROM node:20-alpine@sha256:b88333c42c23fbd91596ebd7fd10de239cedab9617de04142dde7315e3bc0afa AS builder
WORKDIR /app
ENV NEXT_TELEMETRY_DISABLED=1

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

RUN npm run build \
  && rm -rf .next/cache

# --------------------- runner stage ---------------------
FROM node:20-alpine@sha256:b88333c42c23fbd91596ebd7fd10de239cedab9617de04142dde7315e3bc0afa AS runner
WORKDIR /app

ENV NODE_ENV=production
ENV NEXT_TELEMETRY_DISABLED=1
ENV PORT=3000
ENV HOST=0.0.0.0

RUN adduser -D -u 1001 -h /home/nextjs nextjs

COPY --from=deps /app/node_modules ./node_modules
COPY --from=builder /app/package.json ./package.json
COPY --from=builder /app/next.config.ts ./next.config.ts
COPY --from=builder /app/tsconfig.json ./tsconfig.json
COPY --from=builder /app/.next ./.next
COPY --from=builder /app/public ./public
COPY --from=builder /app/src ./src
COPY --from=builder /app/mail-templates ./mail-templates

RUN mkdir -p /app/data && chown -R nextjs:nextjs /app
RUN rm -rf /var/cache/apk/*

EXPOSE 3000
USER nextjs

CMD ["npm", "start"]