YAML库存解析错误

Question

hosts.ini

[local] 
127.0.0.1 ansible_connection=local 

hosts.yaml

local: 
    hosts: 
    127.0.0.1: 
    vars: 
    ansible_connection: local 

然后我跑ansible local -m ping -i hosts.ini我得到了预期的输出中，然后我跑ansible local -m ping -i hosts.yaml我：

[WARNING]: * Failed to parse /home/elruso/projects/ansible/hosts.yaml with ini plugin: /home/elruso/projects/ansible/hosts.yaml:5: Expected key=value host variable assignment, got: local 
[WARNING]: Unable to parse /home/elruso/projects/ansible/hosts.yaml as an inventory source 
[WARNING]: No inventory was parsed, only implicit localhost is available 
[WARNING]: Could not match supplied host pattern, ignoring: local 
[WARNING]: No hosts matched, nothing to do 

据docs我可以毫无问题地使用yaml文件作为库存。我如何指定使用yml插件？

$ansible --version 
ansible 2.4.0.0 
config file = /home/elruso/projects/ansible/ansible.cfg 
configured module search path = ['/home/elruso/.ansible/plugins/modules', '/usr/share/ansible/plugins/modules'] 
ansible python module location = /home/elruso/.virtualenvs/ansible/lib/python3.6/site-packages/ansible 
executable location = /home/elruso/.virtualenvs/ansible/bin/ansible 
python version = 3.6.2 (default, Jul 20 2017, 08:43:29) [GCC 5.4.1 20170519] 

更新：issue打开

Answer 1

的问题是在Python 3重现性好，看起来像一个错误。

使用Python 2而不是Python 3，因为后者是not officially supported yet。

Answer 2

在python 3的2.4.0中存在一个错误（试图在字符串列表中找到.yml字节）。

这个bug已经修复在这个提交https://github.com/ansible/ansible/commit/72bdf7aa7e1b867380201092dff65338d59cd8fa，它可能会被释放为2.4.1。