Dockerfile

# Stage 1: Base image for installing dependencies
FROM node:18-alpine AS base

ARG GOOGLE_MAPS_API_KEY
ENV GOOGLE_MAPS_API_KEY=$GOOGLE_MAPS_API_KEY

# Install dependencies only when needed
FROM base AS deps
RUN apk add --no-cache libc6-compat
WORKDIR /app

# Install dependencies based on the preferred package manager
COPY package.json yarn.lock* package-lock.json* pnpm-lock.yaml* ./

RUN \
  if [ -f yarn.lock ]; then yarn --frozen-lockfile; \
  elif [ -f package-lock.json ]; then npm ci; \
  elif [ -f pnpm-lock.yaml ]; then yarn global add pnpm && pnpm i --frozen-lockfile; \
  else echo "Lockfile not found." && exit 1; \
  fi


# Stage 2: Building the source code
FROM base AS builder
WORKDIR /app
COPY --from=deps /app/node_modules ./node_modules
COPY . .


# Uncomment the following line in case you want to disable telemetry during the build.
ENV NEXT_TELEMETRY_DISABLED 1

# Build the Next.js application
#RUN yarn build

# If using npm comment out above and use below instead
RUN npm run build

# Stage 3: Creating the production image
FROM base AS runner
WORKDIR /app
ENV NODE_ENV production

# Uncomment the following line in case you want to disable telemetry during runtime.
ENV NEXT_TELEMETRY_DISABLED 1

# Create system user and group for running the application
RUN addgroup --system --gid 1001 nodejs
RUN adduser --system --uid 1001 nextjs

COPY --from=builder /app/public ./public

# Copy public files and built application files
COPY --from=builder --chown=nextjs:nodejs /app/.next/standalone ./
COPY --from=builder --chown=nextjs:nodejs /app/.next/static ./.next/static

# Switch to the nextjs user
USER nextjs

# Expose port 80 for the application
EXPOSE 80
ENV PORT 80

# Command to start the application
CMD ["node", "server.js"]