FROM rust:1.94.1-alpine3.23 AS builder

RUN apk add --no-cache musl-dev openssl-dev openssl-libs-static pkgconfig

WORKDIR /app

COPY services/user-service/user-register-email/Cargo.toml services/user-service/user-register-email/Cargo.lock* ./

RUN mkdir -p src && echo 'fn main() {}' > src/main.rs
RUN cargo build --release 2>/dev/null || true
RUN rm -rf src

COPY services/user-service/user-register-email/src ./src

RUN touch src/main.rs && cargo build --release

FROM alpine:3.23 AS runtime

RUN apk add --no-cache ca-certificates

RUN addgroup -g 1000 appuser && adduser -D -u 1000 -G appuser appuser

WORKDIR /app

COPY --from=builder /app/target/release/user-register-email /app/user-register-email

RUN chown -R appuser:appuser /app

USER appuser

EXPOSE 8080

CMD ["./user-register-email"]