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()
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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' ]
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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
]
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