FROM node:8-alpine as base

FROM base as builder

# Some packages (e.g. @google-cloud/profiler) require additional
# deps for post-install scripts
RUN apk add --update --no-cache \
    python \
    make \
    g++

WORKDIR /usr/src/app

COPY package*.json ./

RUN npm install --only=production

FROM base

RUN GRPC_HEALTH_PROBE_VERSION=v0.2.0 && \
    wget -qO/bin/grpc_health_probe https://github.com/grpc-ecosystem/grpc-health-probe/releases/download/${GRPC_HEALTH_PROBE_VERSION}/grpc_health_probe-linux-amd64 && \
    chmod +x /bin/grpc_health_probe

WORKDIR /usr/src/app

COPY --from=builder /usr/src/app/node_modules ./node_modules

COPY . .

EXPOSE 7000

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