Question

我创建了一个.YML Playbook。

将一些代码放入其中，工作正常。

然后我遇到了一个问题 - 我正在尝试自动部署某个应用程序。应用程序提示用户交互。不幸的是，“是| 命令”不起作用。它只是被忽略，仍然提示。

所以，我决定使用期望模块。

当前代码如下所示：

- hosts: all
  remote_user: someuser
  gather_facts: yes

  tasks:
    - name: "Copy files"
      copy: src=../somefiles/ dest=/tmp

    - name: "Execute some script"
      shell: sudo /tmp/script.sh

    - name: "Execute app"
      expect:
        command: /bin/bash -c 'sudo /tmp/app arguments'
        responses:
        "'Press 'y' to confirm ('s' to skip, 'a' to abort):'": "y"
      echo: y

我用双引号括起了预期的行。但是，由于预期行，有单引号（'），它似乎打破了语法。

错误输出如下：

ERROR! Syntax Error while loading YAML.


The error appears to have been in 'deploy.yml': line 16, column 1, but may
be elsewhere in the file depending on the exact syntax problem.

The offending line appears to be:

        responses:
        "'Press 'y' to confirm ('s' to skip, 'a' to abort):'": "y"
^ here
This one looks easy to fix.  It seems that there is a value started
with a quote, and the YAML parser is expecting to see the line ended
with the same kind of quote.  For instance:

    when: "ok" in result.stdout

Could be written as:

   when: '"ok" in result.stdout'

Or equivalently:

   when: "'ok' in result.stdout"
We could be wrong, but this one looks like it might be an issue with
unbalanced quotes.  If starting a value with a quote, make sure the
line ends with the same set of quotes.  For instance this arbitrary
example:

    foo: "bad" "wolf"

Could be written as:

    foo: '"bad" "wolf"'

我已经尝试使用反斜杠（）来为单引号执行字符转义，并双引用单引号。他们都没有工作。根据我所放置的报价顺序，我要么这个看起来很容易修复。或直接坏狼。

Answer 1

问题不是引号，而是字符串中的特殊字符。期望模块执行正则表达式匹配，因此响应字符串必须符合正则表达式

这意味着必须转义括号和逗号的特殊字符

工作示例如下：

/tmp/run.sh：

#!/bin/bash
echo "Press 'y' to confirm ('s' to skip, 'a' to abort):"
read response
echo $response

ansible playbook：

- connection: local
  hosts: localhost
  tasks:
    - name: "Execute app"
      expect:
        command: /tmp/run.sh
        responses:
          Press 'y' to confirm \('s' to skip\, 'a' to abort\):: "y"
        echo: yes

Expect Module中字符串中的字符转义单引号

1 个答案: