Add dockerfile

dockerfile

@@ -0,0 +1,15 @@
+FROM node:18-bullseye AS builder
+RUN apt-get update && apt-get install -y default-jre
+WORKDIR /app
+COPY package.json package-lock.json shadow-cljs.edn ./
+RUN npm install
+COPY src ./src
+COPY public ./public
+RUN npx shadow-cljs release :app
+
+
+FROM nginx:alpine
+COPY --from=builder /app/public /usr/share/nginx/html
+COPY nginx.conf /etc/nginx/conf.d/default.conf
+EXPOSE 80
+CMD ["nginx", "-g", "daemon off;"]