# 构建阶段
FROM rust:1.94.1-alpine3.23 AS builder

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

WORKDIR /app

# 复制 user-login 代码
COPY services/user-service/user-login/Cargo.toml services/user-service/user-login/Cargo.lock* ./

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

# 复制真实源码
COPY services/user-service/user-login/src ./src

# 重新构建
RUN touch src/main.rs && cargo build --release

# 运行阶段
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-login /app/user-login

RUN chown -R appuser:appuser /app

USER appuser

EXPOSE 8080

CMD ["./user-login"]