FROM docker.io/node:19.5.0-alpine AS base
WORKDIR /app
COPY package.json package-lock.json ./

FROM base AS builder
# install dependencies
RUN npm ci

# Copy all local files into the image.
COPY . .

RUN npm run build

###
# Only copy over the Node pieces we need
# ~> Saves 35MB
###
FROM base

COPY --from=builder /app/build .
COPY ./server.js .
RUN npm ci --omit dev

ENV HOST=0.0.0.0

EXPOSE 3000

CMD ["node", "server.js"]