“ELF：未find”和“语法错误：未知”（“”在Docker容器中

我正在尝试为beanstalkd-cli构build一个Docker镜像。 图像生成成功，但是当我运行docker run -it myimage ，它失败：

 /usr/local/bin/beanstalkd-cli: line 1: ELF: not found /usr/local/bin/beanstalkd-cli: line 2: syntax error: unexpected "(" 

这是否意味着构build不好？ 或者我需要调整ENTRYPOINT和/或CMD ？

这是我的Dockerfile：

 FROM alpine:3.5 LABEL maintainer="Coby Tamayo <[e-mail]" # Install openssl, beanstalkd-cli RUN apk add --update openssl && \ wget https://github.com/schickling/beanstalkd-cli/releases/download/0.3.0/beanstalkd-cli-linux.tar.gz && \ tar -xvzf beanstalkd-cli-linux.tar.gz && \ chmod +x beanstalkd-cli && \ mv beanstalkd-cli /usr/local/bin/beanstalkd-cli && \ rm beanstalkd-cli-linux.tar.gz ENTRYPOINT ["/bin/sh"] CMD ["/usr/local/bin/beanstalkd-cli"] 

更新1

当我完全移除ENTRYPOINT和CMD ，运行容器将我放到一个shell中，在那里我可以validationbeanstalkd-cli是否具有执行权限设置：

 $ docker run -it myimage / # which beanstalkd-cli /usr/local/bin/beanstalkd-cli / # ls -la /usr/local/bin/beanstalkd-cli -rwxrwxr-x 1 1000 1000 3020529 Feb 23 2015 /usr/local/bin/beanstalkd-cli 

只是“为了好玩”，我也尝试着只设置ENTRYPOINT ，而没有命令，因为我真的不在乎在这个容器中运行除了beanstalkd-cli命令之外的任何东西：

 ENTRYPOINT ["/usr/local/bin/beanstalkd-cli"] # no more CMD 

当我docker run 这个 ，我得到：

 standard_init_linux.go:185: exec user process caused "no such file or directory" 

同样的结果，如果我join原来的CMD回来。

更新2

 # file /usr/local/bin/beanstalkd-cli /usr/local/bin/beanstalkd-cli: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, for GNU/Linux 2.6.24, BuildID[sha1]=63a19b18574643c1da5bafd5bd56fc26af22ab05, not stripped # uname -a Linux 6882ec36481d 4.10.0-40-generic #44~16.04.1-Ubuntu SMP Thu Nov 9 15:37:44 UTC 2017 x86_64 Linux # /usr/local/bin/beanstalkd-cli /bin/sh: /usr/local/bin/beanstalkd-cli: not found 

Answer 1

诊断问题

使用你的Dockerfile：

 docker run 04d32bac400e '-xlic' 'ldd /usr/local/bin/beanstalkd-cli' 

…发出：

 + ldd /usr/local/bin/beanstalkd-cli /lib64/ld-linux-x86-64.so.2 (0x7f9044206000) libdl.so.2 => /lib64/ld-linux-x86-64.so.2 (0x7f9044206000) libpthread.so.0 => /lib64/ld-linux-x86-64.so.2 (0x7f9044206000) librt.so.1 => /lib64/ld-linux-x86-64.so.2 (0x7f9044206000) libc.so.6 => /lib64/ld-linux-x86-64.so.2 (0x7f9044206000) libm.so.6 => /lib64/ld-linux-x86-64.so.2 (0x7f9044206000) Error loading shared library libgcc_s.so.1: No such file or directory (needed by /usr/local/bin/beanstalkd-cli) Error loading shared library ld-linux-x86-64.so.2: No such file or directory (needed by /usr/local/bin/beanstalkd-cli) Error relocating /usr/local/bin/beanstalkd-cli: __gcc_personality_v0: symbol not found Error relocating /usr/local/bin/beanstalkd-cli: __register_atfork: symbol not found Error relocating /usr/local/bin/beanstalkd-cli: __rawmemchr: symbol not found Error relocating /usr/local/bin/beanstalkd-cli: _Unwind_DeleteException: symbol not found Error relocating /usr/local/bin/beanstalkd-cli: _Unwind_RaiseException: symbol not found Error relocating /usr/local/bin/beanstalkd-cli: _Unwind_FindEnclosingFunction: symbol not found Error relocating /usr/local/bin/beanstalkd-cli: _Unwind_GetIP: symbol not found Error relocating /usr/local/bin/beanstalkd-cli: _Unwind_Backtrace: symbol not found Error relocating /usr/local/bin/beanstalkd-cli: _Unwind_Resume: symbol not found 

所以 – 你使用的beanstalkd库是链接到libgcc_s.so.1和ld-linux-x86-64.so.2 ，这两者都不是由Alpine 3.5基础镜像提供的; 因此，当试图运行可执行文件时，“没有这样的文件或目录”。

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简单的解决scheme

考虑一个较重的基础图像; 例如，以下内容适用于：

 FROM ubuntu:16.04 LABEL maintainer="Coby Tamayo <[e-mail]>" # Install openssl, beanstalkd-cli RUN apt-get update RUN apt-get install -y wget RUN wget https://github.com/schickling/beanstalkd-cli/releases/download/0.3.0/beanstalkd-cli-linux.tar.gz && \ tar -xvzf beanstalkd-cli-linux.tar.gz && \ chmod +x beanstalkd-cli && \ mv beanstalkd-cli /usr/local/bin/beanstalkd-cli && \ rm beanstalkd-cli-linux.tar.gz CMD ["/usr/local/bin/beanstalkd-cli"]