# Install dependencies only when needed
FROM node:14.19.1-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 yarn.lock ./
RUN yarn install --frozen-lockfile

# Rebuild the source code only when needed
FROM node:14.19.1-alpine AS builder

WORKDIR /app

ENV BUILDING_PROCESS=true

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

RUN yarn build

# Production image, copy all the files and run next
FROM node:14.19.1-alpine AS runner

WORKDIR /app

ENV BUILDING_PROCESS=false

COPY --from=builder /app/next.config.js ./
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 .env .env.production ./

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

EXPOSE 3000

CMD ["yarn", "start"]