盐定制谷物

Question

我正在尝试编写自定义谷物.我把这段代码放进去了/etc/salt/grains

#!/usr/bin/env python
def function():
    grains = {}
    grains['test'] = "test"
    return grains

并测试它我创建了这个脚本:

import salt.config
import salt.loader
__opts__ = salt.config.minion_config('/etc/salt/minion')
__grains__ = salt.loader.grains(__opts__)
test = __grains__['test']
print test

我有这个错误:

dirs = __grains__['test']
KeyError: 'test'

这有什么问题？

Answer 1

/etc/salt/grains是盐储存谷物salt targetid grains.setval和朋友的地方.它是一个扁平的静态yaml文件.

通过python定制的谷物进入/ srv/salt/_grains,然后同步到仆从salt \* saltutil.sync_grains.这是你应该放置你的python脚本的地方.

以下示例与您的代码进行了类似的记录和验证:

$ cat /srv/salt/_grains/spam.py 
#!/usr/bin/env python
import logging
log = logging.getLogger(__name__)

def function():
    log.trace('Setting grains["spam"] to "eggs"')
    grains = {}
    grains['spam'] = "eggs"
    return grains

$ sudo salt lead saltutil.sync_grains
lead:
    - grains.spam

$ sudo salt-call grains.item spam -l trace 2>&1 \
  | egrep '^local|spam'
[TRACE   ] Added spam.function to grain
[TRACE   ] Setting grains["spam"] to "eggs"
local:
  spam: eggs

$ cat /tmp/spam_taster.py 
#!/usr/bin/env python
import salt.config
import salt.loader
__opts__ = salt.config.minion_config('/etc/salt/minion')
__grains__ = salt.loader.grains(__opts__)
spam = __grains__['spam']
print spam

$ python /tmp/spam_taster.py 
eggs