How do I serve Single SPA micro app in standalone mode using Docker

I am trying to run my Single spa micro app in a docker. My existing docker file is

FROM node:18-alpine

WORKDIR /app

COPY package.json .

RUN  npm install

COPY . .

EXPOSE 8001

CMD ["npm","run", "start:standalone"]

The above dockerfile will be running the development code but I want to run the code from dist/ folder

But since I don’t have any index.html as it is a micro app, how do I write the docker script to serve the app in prod.

PS: I did go through the documentation but no luck there