因项目需要使用到ansible api,根据修改官方文档提供的使用范例,经过多次测试,现将能用的代码分享给大家,大家只需根据自己的实际环境修改该代码即可。

    官方文档:http://docs.ansible.com/ansible/latest/dev_guide/developing_api.html#python-api-2-0

    

    注意:

            在运行此代码的主机需无密码登录目标主机,也就是说您需要下发本机的ssh公钥到目标主机

    

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#coding:utf-8
import  json
from  collections  import  namedtuple
from  ansible.parsing.dataloader  import  DataLoader
from  ansible. vars .manager  import  VariableManager
from  ansible.inventory.manager  import  InventoryManager
from  ansible.playbook.play  import  Play
from  ansible.executor.task_queue_manager  import  TaskQueueManager
from  ansible.plugins.callback  import  CallbackBase
 
class  ResultCallback(CallbackBase):
     def  v2_runner_on_ok( self , result,  * * kwargs):
         host  =  result._host
         print (json.dumps({host.name: result._result}, indent = 4 ))
 
 
# 初始化需要的对象
Options  =  namedtuple( 'Options' , [ 'connection' 'module_path' 'forks' 'become' 'become_method' 'become_user' 'check' 'diff' ])
 
# module_path参数指定本地ansible模块包的路径
loader  =  DataLoader()
options  =  Options(connection = 'smart' , module_path = '/usr/lib/python2.7/dist-packages/ansible/modules' , forks = 5 , become = None , become_method = None , become_user = "root" , check = False , diff = False )
passwords  =  dict (vault_pass = 'secret' )
 
# 实例化ResultCallback来处理结果
results_callback  =  ResultCallback()
 
# 创建库存(inventory)并传递给VariableManager
inventory  =  InventoryManager(loader = loader, sources = [ '../conf/hosts' ])  #../conf/hosts是定义hosts
variable_manager  =  VariableManager(loader = loader, inventory = inventory)
 
# 创建任务
play_source  =   dict (
         name  =  "Ansible Play" ,
         hosts  =  "cephnode" ,
         gather_facts  =  'no' ,
         tasks  =  [
             dict (action = dict (module = 'shell' , args = 'touch /tmp/7.txt' ), register = 'shell_out' ),  #定义一条任务,如有多条任务也应按照这样的方式定义
          ]
     )
play  =  Play().load(play_source, variable_manager = variable_manager, loader = loader)
 
# 开始执行
tqm  =  None
try :
     tqm  =  TaskQueueManager(
               inventory = inventory,
               variable_manager = variable_manager,
               loader = loader,
               options = options,
               passwords = passwords,
               stdout_callback = results_callback,   # 使用自定义回调代替“default”回调插件(如不需要stdout_callback参数则按照默认的方式输出)
           )
     result  =  tqm.run(play)
finally :
     if  tqm  is  not  None :
         tqm.cleanup()


我的../conf/hosts文件内容如下:

[cephnode]
192.168.89.136


注意:

    如没有明确指定inventory(如下的参数),那么会默认从/etc/ansible/hosts中读取hosts

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sources = [ '../conf/hosts' ]

    

补充一下,刚说了定义多条任务的方式,举个例子:

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tasks  =  [
             dict (action = dict (module = 'shell' , args = 'mkdir /tmp/toby' ), register = 'shell_out' ),  #首先创建目录
             dict (action = dict (module = 'copy' , args = 'src=/tmp/abc123.txt dest=/tmp/toby' ), register = 'shell_out' #然后将本地的abc123.txt通过copy模块下发到目标主机的/tmp/toby/目录下
          ]