搭建用户体系

backend/Dockerfile

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+# 多阶段构建：先编译 Go 后端，再使用最小运行时镜像
+ARG GO_IMAGE=golang:1.25.8-alpine3.23
+
+FROM ${GO_IMAGE} AS builder
+WORKDIR /app
+
+RUN apk add --no-cache git
+
+COPY go.mod go.sum ./
+RUN go env -w GOPROXY=https://goproxy.cn,direct && go mod download
+
+COPY . ./
+RUN CGO_ENABLED=0 GOOS=linux go build -ldflags="-s -w" -o /app/stock-user-system ./cmd/api
+
+FROM alpine:3.23
+RUN apk add --no-cache ca-certificates tzdata
+WORKDIR /app
+
+COPY --from=builder /app/stock-user-system /app/stock-user-system
+
+ENV DATABASE_URL=""
+ENV JWT_SECRET=""
+ENV JWT_EXPIRATION_HOURS="168"
+ENV PORT="3019"
+ENV GIN_MODE="release"
+
+EXPOSE 3019
+CMD ["/app/stock-user-system"]