ansible callbacks
编辑callbacks.py脚本文件(/usr/lib/python2.6/site-packages/ansible-1.8-py2.6.egg/ansible/callbacks.py)
找到类AggregateStats
在AggregateStats中有2个方法，
def compute(self, runner_results, setup=False, poll=False, ignore_errors=False):''' walk through all results and increment stats '''for (host, value) in runner_results.get('contacted', {}).iteritems():if not ignore_errors and (('failed' in value and bool(value['failed'])) or('failed_when_result' in value and [value['failed_when_result']] or ['rc' in value and value['rc'] != 0])[0]):self._increment('failures', host)elif 'skipped' in value and bool(value['skipped']):self._increment('skipped', host)elif 'changed' in value and bool(value['changed']):if not setup and not poll:self._increment('changed', host)self._increment('ok', host)else:if not poll or ('finished' in value and bool(value['finished'])):self._increment('ok', host)for (host, value) in runner_results.get('dark', {}).iteritems():self._increment('dark', host)global lazy_outlazy_out = runner_resultsprint lazy_out.get('contacted').get(host).get('stdout')def summarize(self, host):''' return information about a particular host '''return dict(ok = self.ok.get(host, 0),failures = self.failures.get(host, 0),unreachable = self.dark.get(host,0),changed = self.changed.get(host, 0),skipped = self.skipped.get(host, 0),#haha = lazy_out.values()[1].values()[0]['stdout'],haha = lazy_out.get('contacted').get(host).get('stdout'))其中的runner_results中有我们想要的输出结果。
使用global将lazy_out设置为runner_results
然后在summarize方法中调用lazy_out，使用字典的get方法进行取值。
值得一提的是，如果你的playbook里面有多个task，sumarize只返回最后一个。
如下:
In [10]: results.run()
PLAY [test] *****************************************************************
GATHERING FACTS ***************************************************************
ok: [test]
TASK: [test] ******************************************************
changed: [test]
Out[10]:
{'test': {'changed': 1,'failures': 0,'haha': u'1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN \n link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00\n inet 127.0.0.1/8 scope host lo\n inet6 ::1/128 scope host \n valid_lft forever preferred_lft forever\n2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000\n link/ether fa:16:3e:7a:b4:08 brd ff:ff:ff:ff:ff:ff\n inet 192.168.10.12/24 brd 192.168.10.255 scope global eth0\n inet6 fe80::f816:3eff:fe7a:b408/64 scope link \n valid_lft forever preferred_lft forever','ok': 2,'skipped': 0,'unreachable': 0}}
