Dockerfile

# Install only runtime dependencies.
FROM node:8.5-alpine AS base
RUN apk add --no-cache build-base python
COPY package.json.tmp ./package.json
COPY yarn.lock ./
ENV NODE_ENV production
RUN yarn --pure-lockfile --production=true

# Build the app.
FROM node:8.5-alpine AS build
RUN apk add --no-cache build-base python
COPY package.json.tmp ./package.json
COPY yarn.lock ./
ENV NODE_ENV development
COPY --from=base /node_modules ./node_modules
RUN yarn --pure-lockfile --production=false
COPY . ./
RUN yarn build

# Use runtime dependencies and built app.
FROM node:8.5-alpine
ENV NODE_ENV production
WORKDIR /app
COPY --from=base /node_modules ./node_modules
COPY --from=build /build ./
RUN addgroup -S -g 1001 app \
    && adduser -S -D -h /app -u 1001 -G app app
USER app
CMD ["node", "/app/server/main.js"]