Dockerfile.prod

FROM elixir:1.8.1-alpine as builder

RUN apk --update --upgrade add build-base curl nodejs nodejs-npm

# Install hex
RUN mix local.hex --force
RUN mix local.rebar --force

# Copy source
WORKDIR /app
COPY . .

# Initial setup
RUN mix deps.get --only prod
RUN MIX_ENV=prod mix compile

# Install node modules
RUN cd assets && npm install && cd ..

# Compile assets
RUN cd assets && ./node_modules/.bin/webpack --mode production && cd ..

RUN mix phx.digest

# Stage 2
FROM elixir:1.8.1-alpine

RUN mix local.hex --force

# Copy source
WORKDIR /app

COPY --from=builder /app /app
RUN rm -rf assets

EXPOSE 4000

CMD ["mix", "phx.server"]