# Build stage
FROM golang:1.21-alpine AS builder

# Use Aliyun mirror for Alpine packages (China acceleration)
RUN sed -i 's/dl-cdn.alpinelinux.org/mirrors.aliyun.com/g' /etc/apk/repositories

RUN apk add --no-cache git ca-certificates

# Set Go proxy for China
ARG GOPROXY=https://goproxy.cn,https://goproxy.io,direct
ENV GOPROXY=${GOPROXY}
ENV GOSUMDB=sum.golang.google.cn

WORKDIR /app

COPY go.mod go.sum ./
RUN go mod download

COPY . .

RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build \
    -ldflags="-w -s" \
    -o /bin/message-router \
    ./services/message-router/cmd/server

# Final stage
FROM alpine:3.18

# Use Aliyun mirror for Alpine packages (China acceleration)
RUN sed -i 's/dl-cdn.alpinelinux.org/mirrors.aliyun.com/g' /etc/apk/repositories

RUN apk --no-cache add ca-certificates curl
RUN adduser -D -s /bin/sh mpc

COPY --from=builder /bin/message-router /bin/message-router

USER mpc

EXPOSE 50051 8080

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
    CMD curl -sf http://localhost:8080/health || exit 1

ENTRYPOINT ["/bin/message-router"]