Dockerfile

# syntax=docker/dockerfile:1

# --- Base ---
FROM node:20-alpine AS base
WORKDIR /app

# --- Dependencies ---
FROM base AS deps
COPY package.json package-lock.json ./
RUN npm ci

# --- Build ---
FROM base AS builder
COPY --from=deps /app/node_modules ./node_modules
COPY . .

# Build-time env vars (defaults are empty; override at build or runtime)
ARG OPENAI_MODEL="openai/gpt-4o-mini"
ARG NEXT_PUBLIC_SITE_URL="http://localhost:3000"

ENV OPENAI_MODEL=$OPENAI_MODEL
ENV NEXT_PUBLIC_SITE_URL=$NEXT_PUBLIC_SITE_URL

RUN npm run build

# --- Runner ---
FROM base AS runner
LABEL org.opencontainers.image.source="https://github.com/hasuwini77/hackathon-teleric"
ENV NODE_ENV=production
ENV PORT=3000
ENV HOSTNAME="0.0.0.0"

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

# Copy standalone output
COPY --from=builder /app/.next/standalone ./
COPY --from=builder /app/.next/static ./.next/static
COPY --from=builder /app/public ./public

USER nextjs
EXPOSE 3000

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