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
COPY ./scripts ./scripts
RUN . ./scripts/build.sh ${BUILD_ENV}

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 --from=deps /app/bin ./bin
COPY ./src ./src
COPY ./scripts ./scripts
RUN . ./scripts/build.sh ${BUILD_ENV}

FROM scratch as runner
COPY --from=micrate-builder /app/bin/micrate .
COPY --from=builder /app/bin/mw .
COPY ./db ./db
EXPOSE 8080
CMD [ "/mw" ]