在 --extra-vars 中传递数组 - Ansible [英] Pass array in --extra-vars - Ansible

问题描述

如何将 yaml 数组传递给 Ansible playbook 中的 --extra-vars.Ansible 文档没有声明其语法，我也无法在任何互联网资源上找到它.

How can I pass yaml array to --extra-vars in Ansible playbook. Ansible documentation does not declares its syntax nor I can find that on any internet resource.

我的意思是如果我有剧本:

I mean if I have a playbook:

---
  - hosts: {{hostName}}
  - remote_user: admin
  ...

那么我应该像这样称呼我的剧本

Then I should call my playbook like

ansible-playbook DeployWar.yml --extra-vars="hostName=tomcat-webApp"

但我想在两台服务器上运行这个剧本，比如 tomcat-webApp 和 tomcat-all，我想从外面控制它，即使用 --extra-vars.我试图做的是:

But I want to run this playbook on two servers say tomcat-webApp and tomcat-all, and I want to control it from out side i.e. using --extra-vars. What I have tried to do is:

ansible-playbook DeployWar.yml --extra-vars="hostName=[tomcat-webApp, tomcat-all]"

ansible-playbook DeployWar.yml --extra-vars="hostName={tomcat-webApp, tomcat-all}"

ansible-playbook DeployWar.yml --extra-vars="[{hostName: tomcat-webApp}, {hostName: tomcat-all}]"

但在所有情况下，剧本都无法在我的调用中声明语法错误.任何帮助表示赞赏.

But in all cases playbook fails declaring a syntax error in my call. Any help appreciated.

推荐答案

回答您的第一个问题如何将 yaml 数组传递给 Ansible playbook 中的 --extra-vars."您可以将 json 格式的字符串传递给 extra-vars.

To answer your first question "How can I pass yaml array to --extra-vars in Ansible playbook." you can pass in a json formatted string to extra-vars.

这是一个例子:

- hosts: all
  gather_facts: no
  tasks:
    - debug: var=test_list

以及如何将 test_list 传递给 ansible-playbook:

And how to pass in test_list to ansible-playbook:

ansible-playbook -c local -i localhost, test.yml --extra-vars='{"test_list": [1,2,3]}'

虽然您可以为主机使用变量，但我建议您查看 Ansible 的主机管理机制，即 inventory 与--limit 选项.

Though you can use a variable for hosts I recommend checking out Ansible's mechanism for host management which is inventory in conjunction with the --limit option.

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