Node.js Best Practices Dockerfile (with build step). See this article for more info: https://menssen.tech/nodejs-docker-best-practices

Dockerfile

### build stage
FROM node:12.16.1-alpine3.11 AS build
WORKDIR /usr/src/app
COPY package*.json ./
RUN npm install
COPY . .
RUN npm run build

### cmd stage
FROM node:12.16.1-alpine3.11
WORKDIR /usr/src/app
RUN chown node:node /usr/src/app

RUN apk add --no-cache tini
ENTRYPOINT ["/sbin/tini", "--"]

USER node
COPY package*.json ./
RUN NODE_ENV=production npm install
COPY --from=build /usr/src/app/dist ./dist

EXPOSE 8080
CMD [ "node", "dist/index.js" ]