Dockerfile

# 1. Install dependencies only when neede
FROM node:18-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

# Install dependencies using NPM
COPY package.json package-lock.json* ./
RUN apk add --no-cache git openssh
RUN \
  if [ -f package-lock.json ]; then npm ci; \
  else echo "package-lock.json not found." && exit 1; \
  fi


# 2. Rebuild the source code only when needed
FROM node:18-alpine AS builder
WORKDIR /app

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

# Passer les variables NEXT_PUBLIC_* au build (intégrées dans le code compilé)
ARG NEXT_PUBLIC_GNOSISSCAN_API_KEY
ARG NEXT_PUBLIC_THEGRAPH_API_KEY
ARG NEXT_PUBLIC_THEGRAPH_API_URL
ARG NEXT_PUBLIC_GNOSIS_RPC_URL

# Définir les variables d'environnement pour le build
ENV NEXT_PUBLIC_GNOSISSCAN_API_KEY=$NEXT_PUBLIC_GNOSISSCAN_API_KEY
ENV NEXT_PUBLIC_THEGRAPH_API_KEY=$NEXT_PUBLIC_THEGRAPH_API_KEY
ENV NEXT_PUBLIC_THEGRAPH_API_URL=$NEXT_PUBLIC_THEGRAPH_API_URL
ENV NEXT_PUBLIC_GNOSIS_RPC_URL=$NEXT_PUBLIC_GNOSIS_RPC_URL

# Next.js collects completely anonymous telemetry data about general usage.
# Learn more here: https://nextjs.org/telemetry
# Uncomment the following line in case you want to disable telemetry during the build.
ENV NEXT_TELEMETRY_DISABLED=1

RUN npm run build

# Ensure public directory exists (create if it doesn't and add a placeholder file)
RUN mkdir -p ./public && touch ./public/.gitkeep || true

# 3. Production image, copy all the files and run next
FROM node:18-alpine AS runner
WORKDIR /app

ENV NODE_ENV=production

RUN addgroup -g 1001 -S nodejs
RUN adduser -S nextjs -u 1001

# Create public directory
RUN mkdir -p ./public && chown nextjs:nodejs ./public
# Copy public folder (directory exists in builder thanks to mkdir -p above)
COPY --from=builder --chown=nextjs:nodejs /app/public ./public

# Automatically leverage output traces to reduce image size
# https://nextjs.org/docs/advanced-features/output-file-tracing
COPY --from=builder --chown=nextjs:nodejs /app/.next/standalone ./
COPY --from=builder --chown=nextjs:nodejs /app/.next/static ./.next/static

RUN npm i sharp@0.32.6 --ignore-engines
USER nextjs

EXPOSE 3000

ENV PORT=3000
ENV HOSTNAME=0.0.0.0

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