# Using multistage build: 
# 	https://docs.docker.com/develop/develop-images/multistage-build/
# 	https://whitfin.io/speeding-up-rust-docker-builds/
####################### VAULT BUILD IMAGE  #######################
FROM node:8-alpine as vault

ENV VAULT_VERSION "v2.4.0"

ENV URL "https://github.com/bitwarden/web.git"

RUN apk add --update-cache --upgrade \
    curl \
    git \
    tar

RUN git clone -b $VAULT_VERSION --depth 1 $URL web-build
WORKDIR /web-build

COPY /docker/set-vault-baseurl.patch /web-build/    
RUN git apply set-vault-baseurl.patch

RUN npm run sub:init && npm install

RUN npm run dist \
    && mv build /web-vault

########################## BUILD IMAGE  ##########################
# We need to use the Rust build image, because
# we need the Rust compiler and Cargo tooling
FROM rust as build

RUN apt-get update \
    && apt-get install -y \
        gcc-aarch64-linux-gnu \
    && mkdir -p ~/.cargo \
    && echo '[target.aarch64-unknown-linux-gnu]' >> ~/.cargo/config \
    && echo 'linker = "aarch64-linux-gnu-gcc"' >> ~/.cargo/config

ENV CARGO_HOME "/root/.cargo"
ENV USER "root"

# Creates a dummy project used to grab dependencies
RUN USER=root cargo new --bin app
WORKDIR /app

# Copies over *only* your manifests and vendored dependencies
COPY ./Cargo.* ./
COPY ./libs ./libs
COPY ./rust-toolchain ./rust-toolchain

# Prepare openssl arm64 libs
RUN sed 's/^deb/deb-src/' /etc/apt/sources.list > \
        /etc/apt/sources.list.d/deb-src.list \
    && dpkg --add-architecture arm64 \
    && apt-get update \
    && apt-get install -y \
        libssl-dev:arm64 \
        libc6-dev:arm64

ENV CC_aarch64_unknown_linux_gnu="/usr/bin/aarch64-linux-gnu-gcc"
ENV CROSS_COMPILE="1"
ENV OPENSSL_INCLUDE_DIR="/usr/include/aarch64-linux-gnu"
ENV OPENSSL_LIB_DIR="/usr/lib/aarch64-linux-gnu"

# Builds your dependencies and removes the
# dummy project, except the target folder
# This folder contains the compiled dependencies
RUN rustup target add aarch64-unknown-linux-gnu
RUN cargo build --release --target=aarch64-unknown-linux-gnu -v
RUN find . -not -path "./target*" -delete

# Copies the complete project
# To avoid copying unneeded files, use .dockerignore
COPY . .

# Builds again, this time it'll just be
# your actual source files being built
RUN cargo build --release --target=aarch64-unknown-linux-gnu -v

######################## RUNTIME IMAGE  ########################
# Create a new stage with a minimal image
# because we already have a binary built
FROM balenalib/aarch64-debian:stretch

ENV ROCKET_ENV "staging"
ENV ROCKET_WORKERS=10

RUN [ "cross-build-start" ]

# Install needed libraries
RUN apt-get update && apt-get install -y\
    openssl\
    ca-certificates\
    --no-install-recommends\
 && rm -rf /var/lib/apt/lists/*

RUN mkdir /data

RUN [ "cross-build-end" ]  

VOLUME /data
EXPOSE 80

# Copies the files from the context (env file and web-vault)
# and the binary from the "build" stage to the current stage
COPY .env .
COPY Rocket.toml .
COPY --from=vault /web-vault ./web-vault
COPY --from=build /app/target/aarch64-unknown-linux-gnu/release/bitwarden_rs .

# Configures the startup!
CMD ./bitwarden_rs