Initial commit

Dockerfile

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+# Frontend build stage
+FROM node:20-alpine AS frontend-builder
+ARG NPM_REGISTRY
+# 如果设置了 NPM_REGISTRY，则配置 npm 镜像
+RUN if [ -n "$NPM_REGISTRY" ]; then npm config set registry $NPM_REGISTRY; fi
+
+WORKDIR /webapp
+# 仅拷贝包定义文件以利用缓存
+COPY webapp/package*.json ./
+RUN npm ci
+# 拷贝前端源码并构建
+COPY webapp/ ./
+RUN npm run build
+
+# Backend build stage
+FROM golang:1.24-alpine AS builder
+ARG GOPROXY
+ENV GOPROXY=$GOPROXY
+WORKDIR /app
+# 仅拷贝依赖文件以利用缓存
+COPY go.mod go.sum ./
+RUN go mod download
+# 拷贝后端源码（不包含 webapp）
+COPY internal/ ./internal/
+COPY main.go .
+COPY docs/ ./docs/
+# 从前端构建阶段拷贝产物到 web 目录（Go embed 需要）
+COPY --from=frontend-builder /web ./web
+# 编译二进制，移除调试信息并进行静态链接优化
+RUN CGO_ENABLED=0 GOOS=linux go build -ldflags="-s -w" -o filerelay main.go
+
+# Final stage
+FROM alpine:3.21
+WORKDIR /app
+# 合并指令以减少层数，安装必要包并创建所需目录
+RUN apk add --no-cache ca-certificates mailcap && \
+    mkdir -p config data/storage_data data/logs
+# 仅拷贝编译后的二进制文件，前端资源已通过 Go embed 包含在内
+COPY --from=builder /app/filerelay .
+
+EXPOSE 8080
+# 合并环境变量定义
+ENV FR_SITE_PORT=8080 \
+    FR_STORAGE_LOCAL_PATH=data/storage_data \
+    FR_DB_TYPE=sqlite \
+    FR_DB_PATH=data/file_relay.db \
+    FR_LOG_LEVEL=info \
+    FR_LOG_FILE_PATH=data/logs/app.log
+
+CMD ["./filerelay"]