# Using multistage build: 
# 	https://docs.docker.com/develop/develop-images/multistage-build/
# 	https://whitfin.io/speeding-up-rust-docker-builds/
####################### VAULT BUILD IMAGE  #######################
FROM alpine:3.10 as vault

ENV VAULT_VERSION "v2.10.1"

ENV URL "https://github.com/dani-garcia/bw_web_builds/releases/download/$VAULT_VERSION/bw_web_$VAULT_VERSION.tar.gz"

RUN apk add --no-cache --upgrade \
    curl \
    tar

RUN mkdir /web-vault
WORKDIR /web-vault

SHELL ["/bin/ash", "-eo", "pipefail", "-c"]

RUN curl -L $URL | tar xz
RUN ls

########################## BUILD IMAGE  ##########################
# Musl build image for statically compiled binary
FROM clux/muslrust:nightly-2019-07-08 as build

# set mysql backend
ARG DB=mysql

ENV USER "root"

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

WORKDIR /app

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

RUN rustup target add x86_64-unknown-linux-musl

# Make sure that we actually build the project
RUN touch src/main.rs

# Build
RUN cargo build --features ${DB} --release

######################## RUNTIME IMAGE  ########################
# Create a new stage with a minimal image
# because we already have a binary built
FROM alpine:3.10

ENV ROCKET_ENV "staging"
ENV ROCKET_PORT=80
ENV ROCKET_WORKERS=10
ENV SSL_CERT_DIR=/etc/ssl/certs

# Install needed libraries
RUN apk add --no-cache \
        openssl \
        mariadb-connector-c \
        ca-certificates

RUN mkdir /data
VOLUME /data
EXPOSE 80
EXPOSE 3012

# Copies the files from the context (Rocket.toml file and web-vault)
# and the binary from the "build" stage to the current stage
COPY Rocket.toml .
COPY --from=vault /web-vault ./web-vault
COPY --from=build /app/target/x86_64-unknown-linux-musl/release/bitwarden_rs .

# Configures the startup!
CMD ["./bitwarden_rs"]