build and run angular-cli app in docker nginx via volume sharing

docker-compose.yml

version: '2'
services:

  build-dist:
      build:
        context: .
        dockerfile: Dockerfile.build
      volumes:
        - dist:/dist

  serve:
      image: nginx
      ports:
        - "127.0.0.1:80:80"
      depends_on:
        - build-dist
      volumes:
        - dist:/usr/share/nginx/html:ro

volumes:
   dist:

Dockerfile.build

FROM node:7

ENV REFRESHED_AT 2017-06-26

RUN yarn global add @angular/cli
RUN ng set --global packageManager=yarn

COPY . /build
WORKDIR /build

RUN yarn
RUN ng build

VOLUME /build/dist

consider rewrite to have an runnable tagged image as a result of a build