ansible playbook中有一个ini_file ，主要的作用是用来向一些conf文件写一些内容的，功能确实挺好的，但是我今天要吐槽一个参数项：
| create
(added in 2.2)
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no | no |
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If specified, the file will be created if it does not already exist. By default it will fail if the file is missing.
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该参数标明： 2.2 新加入的，好，新加入正常， 但是， 那你这默认值是几个意思？
在以前，我们很可能都是这么写的：
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- ini_file: dest=/etc/conf section=drinks option=fav value=lemonade mode=0600 backup=yes |
如果 /etc/conf 不存在，在2.2版本之前是可以自动创建的，但是，如果你不小心升级到了2.2，那么抱歉，你的playbook会报错，你需要增加一个项：
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- ini_file: dest=/etc/conf section=drinks option=fav value=lemonade mode=0600 backup=yes create=yes |
我个人认为吧，无论什么理由，ansible在升级版本的时候都应该兼顾之前版本吧？ 你这到好，一把玩死， 还得挨个去改，你敢不敢把默认值设为yes?
附录ini_file 使用参数：
| parameter | required | default | choices | comments |
|---|---|---|---|---|
| backup | no | no |
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Create a backup file including the timestamp information so you can get the original file back if you somehow clobbered it incorrectly.
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| create
(added in 2.2)
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no | no |
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If specified, the file will be created if it does not already exist. By default it will fail if the file is missing.
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| dest | yes |
Path to the INI-style file; this file is created if required
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| group | no |
Name of the group that should own the file/directory, as would be fed to chown.
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| mode | no |
Mode the file or directory should be. For those used to /usr/bin/chmod remember that modes are actually octal numbers (like 0644). Leaving off the leading zero will likely have unexpected results. As of version 1.8, the mode may be specified as a symbolic mode (for example,
u+rwx or u=rw,g=r,o=r). |
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| no_extra_spaces
(added in 2.1)
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no |
do not insert spaces before and after ‘=’ symbol
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| option | no |
if set (required for changing a value), this is the name of the option.
May be omitted if adding/removing a whole section.
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| others | no |
all arguments accepted by the file module also work here
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| owner | no |
Name of the user that should own the file/directory, as would be fed to chown.
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| section | yes |
Section name in INI file. This is added if
state=present automatically when a single value is being set. |
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| selevel | no | s0 |
Level part of the SELinux file context. This is the MLS/MCS attribute, sometimes known as the
range. _default feature works as for seuser. |
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| serole | no |
Role part of SELinux file context,
_default feature works as for seuser. |
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| setype | no |
Type part of SELinux file context,
_default feature works as for seuser. |
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| seuser | no |
User part of SELinux file context. Will default to system policy, if applicable. If set to
_default, it will use the user portion of the policy if available. |
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| state | no | present |
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If set to
absent the option or section will be removed if present instead of created. |
| unsafe_writes
(added in 2.2)
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no |
Normally this module uses atomic operations to prevent data corruption or inconsistent reads from the target files, sometimes systems are configured or just broken in ways that prevent this. One example are docker mounted files, they cannot be updated atomically and can only be done in an unsafe manner.
This boolean option allows ansible to fall back to unsafe methods of updating files for those cases in which you do not have any other choice. Be aware that this is subject to race conditions and can lead to data corruption.
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| value | no |
the string value to be associated with an option. May be omitted when removing anoption.
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