ansible回调函数使用

参考： https://www.baidu.com/link?url=oMQmZ-9H4AnL5_ew792aa7-gJF5uLYUn6GGLiD14peZXlt38o8rcz20JHMo-0ALB0MEq8aCxnLlcITpam52IZTNtngEeq1DNRt08JX-LT8y&wd=&eqid=b746838e0000527e00000005627f3c5f

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