copy package-json & just next folder for reduced image size

Dockerfile

@@ -8,7 +8,8 @@ FROM base AS deps
 RUN apk add --no-cache libc6-compat
 WORKDIR /app
 
-COPY package.json package-lock.json*
+COPY package.json .
+COPY package-lock.json .
 RUN npm ci
 
 # Rebuild the source code only when needed
@@ -22,14 +23,17 @@ RUN npm run build
 # Production image, copy all the files and run next
 FROM base AS runner
 WORKDIR /app
-COPY . .
 
 ENV NODE_ENV production
 ENV NEXT_TELEMETRY_DISABLED 1
 
 RUN addgroup --system --gid 1001 nodejs
 RUN adduser --system --uid 1001 nextjs
 
+COPY --from=builder --chown=nextjs:nodejs /app/.next ./.next
+COPY --from=builder /app/node_modules ./node_modules
+COPY --from=builder /app/package.json ./package.json
+
 USER nextjs
 
 EXPOSE 3000