FROM node:14-alpine AS build WORKDIR /opt/node_app COPY package.json yarn.lock ./ RUN yarn --ignore-optional ARG NODE_ENV=production COPY . . RUN yarn build:app:docker FROM nginx:1.21-alpine COPY --from=build /opt/node_app/build /usr/share/nginx/html HEALTHCHECK CMD wget -q -O /dev/null http://localhost || exit 1