添加 Dockerfile

Dockerfile

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+# 多阶段构建
+FROM golang:1.25-alpine AS builder
+
+WORKDIR /app
+
+# 复制代码
+COPY main.go .
+
+# 编译
+RUN go build -ldflags="-s -w" -o chnroute-service main.go
+
+# 运行镜像
+FROM alpine:latest
+
+RUN apk --no-cache add ca-certificates tzdata
+
+WORKDIR /app
+
+# 从构建阶段复制二进制文件
+COPY --from=builder /app/chnroute-service .
+
+# 设置时区
+ENV TZ=Asia/Shanghai
+
+EXPOSE 8080
+
+CMD ["./chnroute-service"]