mentorenwahl/docker/backend/Dockerfile

FROM crystallang/crystal:latest-alpine as micrate-deps
WORKDIR /app
COPY ./micrate/shard.yml ./micrate/shard.lock ./
RUN shards install --production

FROM crystallang/crystal:latest-alpine as micrate-builder
ARG BUILD_ENV
WORKDIR /app
COPY --from=micrate-deps /app/shard.yml /app/shard.lock ./
COPY --from=micrate-deps /app/lib lib/
COPY ./micrate/src ./src
RUN shards build --production --static --release --no-debug --verbose -s -p -t

FROM crystallang/crystal:latest-alpine as deps
WORKDIR /app
RUN apk add curl --no-cache
COPY ./shard.yml ./shard.lock ./
RUN shards install

FROM crystallang/crystal:latest-alpine as builder
ARG BUILD_ENV
WORKDIR /app
COPY --from=deps /app/shard.yml /app/shard.lock ./
COPY --from=deps /app/lib ./lib
COPY ./src ./src
RUN if [ "${BUILD_ENV}" = "development" ]; then \
  shards build --static --verbose -s -p -t; \
  else \
  shards build --static --release --no-debug --verbose -s -p -t; \
  fi
FROM scratch as runner
COPY --from=micrate-builder /app/bin/micrate /bin/micrate
COPY --from=builder /app/bin/mw /bin/mw
COPY ./db ./db
EXPOSE 8080
CMD [ "mw" ]