ansible - 从主机文件中的动态清单定义主机/标签 [英] ansible - define hosts/tag from dynamic inventory in the host file

问题描述

我在 ec2 实例上使用 ec2.py 和特定标签来获取我的主机，结果显示为 IP 地址列表，例如:

I am using ec2.py and specific tag on ec2 instances to get my hosts, the results are shown as list of IP addresses, for example:

ec2.py 的结果:

The results from ec2.py:

 "tag_test_staging": [
    "10_80_20_47"
  ],

我在我的剧本 - hosts: tag_Name_test 中定义了标签，并且它在所有带有 tag_Name_test 的实例上运行.

I define the tag in my playbook - hosts: tag_Name_test and it is run on all the instances with tag_Name_test.

有没有办法在 inventory/ 文件夹下的 hosts 文件中定义主机/标签，剧本将从那里获取主机而不是指定 ec2像现在一样直接在剧本上标记?

Is there a way to define the hosts/tag in the hosts file under the inventory/ folder and the playbook will take the hosts from there instead of specify the ec2 tag directly on the playbook like now ?

如有任何建议，我们将不胜感激.

Any suggestions would be appreciated.

推荐答案

您已经走对了方向.

假设您通过 ec2.py 获得动态库存，并且它是 tag_test_staging.因此，您可以按如下方式构建库存文件夹和文件

Suppose you got dynamic inventory by ec2.py and it is tag_test_staging. So you can build inventory folder and files as below

inventory 
  staging
    hosts
    group_vars
      all.yml
      tag_test_staging.yml
      tag_Name_test.yml

您在每个 YAML 文件中添加变量定义.tag_test_staging.yml 中的变量将仅应用于具有该标签的实例.

You add the variable define in each YAML file. the variable in tag_test_staging.yml will be only applied to the instance with that tag.

所以现在您可以将您的剧本应用为:

So now you can apply your playbook as:

ansible-playbook -i inventory/staging your_playbook.yml

有一个关于如何的最佳实践文档使用带有云的动态库存，也请看一下.

There is a best practices document on how to use dynamic inventory with clouds, please take a look as well.

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