# Our entire toolchain runs in alpine
FROM alpine:latest AS builder

ENV PATH "$PATH:/root/.cargo/bin"
# Needed for proper compiling of openssl-dev
ENV RUSTFLAGS "-C target-feature=-crt-static"

WORKDIR /usr/src/app

# Install build dependencies, rustup & rust's nightly build & toolchain
RUN apk update && apk add --no-cache openssl-dev curl libpq libgcc musl-dev gcc && \
    { curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --default-toolchain nightly; } && \
    rustup target add x86_64-unknown-linux-musl --toolchain nightly

# Copy source code over to builder
COPY Cargo.toml Cargo.lock ./
COPY src/ ./src/