Add Dockerfile

Dockerfile

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+# Install dependencies only when needed
+FROM node:20-alpine AS deps
+RUN apk add --no-cache libc6-compat
+WORKDIR /app
+COPY package.json yarn.lock ./
+RUN yarn install 
+
+# Rebuild the source code only when needed
+FROM node:20-alpine AS builder
+
+WORKDIR /app
+
+COPY --from=deps /app/node_modules ./node_modules
+
+COPY . .
+
+RUN yarn build
+
+# Production image, copy all the files and run next
+FROM node:20-alpine AS runner
+WORKDIR /app
+
+ENV NODE_ENV production
+
+RUN addgroup --system --gid 1001 kx3dex_radio
+RUN adduser --system --uid 1001 kx3dex_radio
+
+COPY --from=builder /app/public ./public
+COPY --from=builder /app/package.json ./package.json
+
+# Automatically leverage output traces to reduce image size
+# https://nextjs.org/docs/advanced-features/output-file-tracing
+COPY --from=builder --chown=kx3dex_radio:kx3dex_radio /app/.next/standalone ./
+COPY --from=builder --chown=kx3dex_radio:kx3dex_radio /app/.next/static ./.next/static
+
+USER kx3dex_radio
+
+EXPOSE 3000
+
+ENV PORT 3000
+ENV HOSTNAME "0.0.0.0"
+ENV NEXT_PUBLIC_SENDGRID_API_KEY=$NEXT_PUBLIC_SENDGRID_API_KEY
+ENV NEXT_PUBLIC_RECAPTCHA_SITE_KEY=$NEXT_PUBLIC_RECAPTCHA_SITE_KEY
+ENV NEXT_PUBLIC_RECAPTCHA_SECRET_KEY=$NEXT_PUBLIC_RECAPTCHA_SECRET_KEY
+
+
+CMD ["node", "server.js"]