如何在Docker容器中执行Expect脚本

时间:2019-09-13 13:47:18

标签: bash docker expect

我有一个期望脚本,希望在docker容器中运行。我已将文件命名为exp扩展名,并将其称为filename.exp。我正在使用Ubuntu docker映像。看起来容器以#!/ usr / bin / env bash开头而不是#!/ usr / bin / expect

开头时能够识别文件

pipeline.yml文件

jobs:
  - name: job-pass-files
    public: true
    plan:
      - get: resource-tutorial
      - task: create-some-files
        config:
          platform: linux
          image_resource:
            type: docker-image
            source: {repository: ubuntu}

          inputs:
            - name: resource-tutorial

          run:
            path: resource-tutorial/filename.exp

filename.exp

#!/usr/bin/expect

eval spawn ssh -oStrictHostKeyChecking=no -oCheckHostIP=no user@****
#use correct prompt
set prompt ":|#|\\\$"
interact -o -nobuffer -re $prompt return
send "Password\r"
interact

在大厅执行作业时出现以下错误

Backend error: Exit status: 500, message: {"Type":"","Message":"runc exec: exit status 1: exec failed: container_linux.go:348: starting container process caused \"no such file or directory\"\n","Handle":"","ProcessID":"","Binary":""}

是否有一种方法可以从Docker容器执行期望脚本。有支持它的图像吗?我是Docker的新手,因此非常感谢您的帮助

1 个答案:

答案 0 :(得分:0)

我使用Expect脚本在我的16.04 Ubuntu容器之一中安装需要用户提示的程序。确保安装期望的二进制文件,它不包含在内。看起来是这样的:

Dockerfile:

<snip>

#Install yocto dependencies
RUN apt-get update && apt-get -y install gawk wget git-core diffstat unzip texinfo gcc-multilib \
  build-essential chrpath socat cpio python python3 python3-pip python3-pexpect \
  xz-utils debianutils iputils-ping python3-git python3-jinja2 libegl1-mesa libsdl1.2-dev \
  xterm repo expect locales

# Install
RUN /home/docker/scripts/install.exp

<snip>

install.exp:

#!/usr/bin/expect

set timeout -1

<snip>