数组中不可能有 Ansible 断言？

Question

我有一个相对简单的指令失败了。下面安装一个服务。我想断言结果文本。那里有正确的文本，但断言失败。怎么可能？？

这是带有断言的代码：

- name: Install the tomcat service on the remote machine 
  win_command: "{{ tomcat_install_folder }}{{ tomcat_service_installer }}"
  register: cmd_result_tomcat_service_install
- assert:
    that:
      - "'has been installed' in cmd_result_tomcat_service_install.stdout_lines"

此处的结果包含 stdout_lines 中断言的文本 'has been installed'。

    "cmd_result_tomcat_service_install": {

        "stdout": "\r\nC:\Users\service_ansible>SET JAVA_HOME=D:\Products\CPeRef\java\jdk1.8.0_51 \r\n\r\nC:\Users\service_ansible>cd /d D:\Products\CPeRef\tomcat\apache-tomcat-8.0.26\bin \r\n\r\nD:\Products\CPeRef\tomcat\apache-tomcat-8.0.26\bin>service.bat install CPeRef2 \r\nInstalling the service 'CPeRef2' ...\r\nUsing CATALINA_HOME:    \"D:\Products\CPeRef\tomcat\apache-tomcat-8.0.26\"\r\nUsing CATALINA_BASE:    \"D:\Products\CPeRef\tomcat\apache-tomcat-8.0.26\"\r\nUsing JAVA_HOME:        \"D:\Products\CPeRef\java\jdk1.8.0_51\"\r\nUsing JRE_HOME:         \"D:\Products\CPeRef\java\jdk1.8.0_51\jre\"\r\nUsing JVM:              \"D:\Products\CPeRef\java\jdk1.8.0_51\jre\bin\server\jvm.dll\"\r\nThe service 'CPeRef2' has been installed.\r\n",
        "stdout_lines": [
            "",
            "C:\Users\service_ansible>SET JAVA_HOME=D:\Products\CPeRef\java\jdk1.8.0_51 ",
            "",
            "C:\Users\service_ansible>cd /d D:\Products\CPeRef\tomcat\apache-tomcat-8.0.26\bin ",
            "",
            "D:\Products\CPeRef\tomcat\apache-tomcat-8.0.26\bin>service.bat install CPeRef2 ",
            "Installing the service 'CPeRef2' ...",
            "Using CATALINA_HOME:    \"D:\Products\CPeRef\tomcat\apache-tomcat-8.0.26\"",
            "Using CATALINA_BASE:    \"D:\Products\CPeRef\tomcat\apache-tomcat-8.0.26\"",
            "Using JAVA_HOME:        \"D:\Products\CPeRef\java\jdk1.8.0_51\"",
            "Using JRE_HOME:         \"D:\Products\CPeRef\java\jdk1.8.0_51\jre\"",
            "Using JVM:              \"D:\Products\CPeRef\java\jdk1.8.0_51\jre\bin\server\jvm.dll\"",
            "The service 'CPeRef2' has been installed."
        ]
    }
}

这里是错误信息：

TASK [tomcat : assert] 
fatal: [v-sax-769-e-a.develop.ebiz.grp]: FAILED! => {
    "assertion": "'has been installed' in cmd_result_tomcat_service_install.stdout_lines",
    "changed": false,
    "evaluated_to": false,
    "failed": true

请问问题会不会是结果实际上是一个数组？

Answer 1

这个条件

'has been installed' in cmd_result_tomcat_service_install.stdout_lines

当字符串列表中有 exact 文字字符串 has been installed 时为真（在本例中为 stdout_lines）。

但是这个

'has been installed' in cmd_result_tomcat_service_install.stdout

当字符串 has been installed 是一个长字符串（在本例中为 stdout）的子字符串时为真。

如果你想独立解析行，你可以使用：

cmd_result_tomcat_service_install.stdout_lines | select('search','has been installed') | list | count > 0

数组中不可能有 Ansible 断言？

Ansible assertion not possible in an array?

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ansible-2.x