init
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Dockerfile
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50
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# syntax=docker/dockerfile:1.6
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# 构建阶段(支持 buildx 多架构)
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FROM --platform=$BUILDPLATFORM golang:1.21-alpine AS builder
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ARG TARGETOS
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ARG TARGETARCH
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WORKDIR /app
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# 复制依赖文件(优先复制,利用 Docker 缓存)
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COPY go.mod go.sum ./
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RUN go mod download
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# 仅复制必要的源代码目录
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COPY cmd/ ./cmd/
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COPY internal/ ./internal/
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COPY pkg/ ./pkg/
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# 编译 - 优化参数减小二进制大小和加快编译
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RUN CGO_ENABLED=0 \
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GOOS=${TARGETOS:-linux} GOARCH=${TARGETARCH:-$(go env GOARCH)} \
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go build -ldflags="-s -w" -trimpath \
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-o qd-sc-server cmd/server/main.go
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# 运行阶段 - 使用最小化的 alpine
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FROM alpine:3.19
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# 安装必要的工具(ca-certificates 用于 HTTPS,wget 用于 healthcheck)
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RUN apk --no-cache add ca-certificates tzdata wget && \
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addgroup -g 1000 appuser && \
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adduser -D -u 1000 -G appuser appuser && \
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mkdir -p /app && \
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chown -R appuser:appuser /app
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WORKDIR /app
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# 从构建阶段复制二进制文件
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COPY --from=builder --chown=appuser:appuser /app/qd-sc-server .
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# 切换到非 root 用户
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USER appuser
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# 暴露端口
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EXPOSE 8080
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# 运行
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ENTRYPOINT ["./qd-sc-server"]
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CMD ["-config", "/app/config.yaml"]
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