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PhiFever
RSSGen
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# Go 版本 Dockerfile - 多阶段构建,最终 scratch 镜像
FROM --platform=$BUILDPLATFORM golang:1.27-alpine AS builder
# 安装 CA 证书和时区数据
RUN apk add --no-cache ca-certificates tzdata
WORKDIR /app
# 先复制依赖文件,利用 Docker 缓存
COPY go.mod go.sum ./
RUN go mod download
# 复制源代码并构建(buildx 自动注入 TARGETOS/TARGETARCH,在 BUILDPLATFORM 上交叉编译)
ARG TARGETOS
ARG TARGETARCH
COPY . .
RUN CGO_ENABLED=0 GOOS=${TARGETOS} GOARCH=${TARGETARCH} go build \
-ldflags="-s -w" \
-o /rssgen \
.
# 最终 scratch 镜像
FROM scratch
# 复制 CA 证书(HTTPS 请求需要)
COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
# 复制时区数据
COPY --from=builder /usr/share/zoneinfo /usr/share/zoneinfo
# 复制编译好的二进制文件
COPY --from=builder /rssgen /rssgen
# 与 docker-compose 挂载点对齐:配置挂到 /app/config.yml。
# server 子命令以相对路径读取 config.yml,故工作目录必须是 /app。
# 不烤入示例配置:未挂载配置时应直接报错退出,而非静默加载占位符。
WORKDIR /app
EXPOSE 8000
ENTRYPOINT ["/rssgen"]
CMD ["server"]
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