Dockerfile for NestJS (optimized with multi-stage)

Dockerfile

# build image - create nest production build

FROM node:13.14-alpine AS build

WORKDIR /app

COPY yarn.lock package.json ./
RUN yarn install --frozen-lockfile

COPY . .
RUN yarn build

# deps image - install production only node modules

FROM node:13.14-alpine AS deps

WORKDIR /deps

COPY yarn.lock package.json ./
RUN yarn install --frozen-lockfile --production

# production image - copy dist & production node_modules from above steps (optimize build size)

FROM astefanutti/scratch-node:13.14 AS production

COPY --from=build /app/dist /dist
COPY --from=deps /deps /

ENTRYPOINT ["node", "dist/apps/api/main"]