ARG alpine_version=3.21

FROM docker.io/library/rust:1-alpine${alpine_version} AS builder

WORKDIR /src
RUN apk add --no-cache musl-dev

RUN cargo install sqlx-cli --no-default-features --features sqlite
# Required for compile-time schemata checks of migrations
ENV DATABASE_URL=sqlite:/tmp/rvault.db
RUN touch /tmp/rvault.db

COPY Cargo.toml Cargo.lock .
RUN --mount=type=cache,target=/usr/local/cargo/registry \
    mkdir src && echo "fn main() {}" > src/main.rs && \
    cargo fetch --locked --target $(rustc -vV | sed -n 's|host: ||p') && \
    rm src/main.rs

# Required for compile-time checks of query - database-schema compatibility 
COPY migrations migrations
RUN cargo sqlx migrate run

COPY src src
RUN --mount=type=cache,target=/usr/local/cargo/registry \
    cargo build --release --locked

FROM docker.io/library/alpine:${alpine_version} AS runner
# FROM scratch AS runner

COPY --from=builder /src/target/release/rvault-server /usr/bin/rvault-server

CMD ["/usr/bin/rvault-server"]