Django+ansible+ajax实现自动化部署

红太狼 2022-05-14 04:54 396阅读 0赞

目前公司部署环境都是手动进行部署或者写个shell脚本进行部署，但是感觉这样还是比较麻烦的，所以最近我考虑了下将部署集成到运维平台进行自动化

实现效果：

[![images][]][images]

这个是我第一次想到的版本 当我点击部署的时候后端执行异步部署，部署完成之后返回结果当部署失败的时候有利于我们排错，后续更新如何实时返回结果，有利于我们如何知道实时执行情况

首先前端页面的代码特殊的地方就是ajax的代码 置于美化 排版 各需所好 我这里只将ajax的代码，ajax的代码主要是为了异步执行后端代码的作用：

def ansible(request):
        import os,re
        from itertools import islice
        InventoryFile='wls/static/hosts'
        f=open(InventoryFile)  #InventoryFile里有host的列表
        hosts=[]
        for line in f.readlines():
            if re.match(r'\[.*\]',line):
                pass
            else:
                hosts.append(line)
        f.close()
        softwares = []
        for root, dirs, files in os.walk('wls/static/yaml/'):   #部署的ansible的剧本
            for i in files:
                if  re.match(r'.*\.retry',i):
                    pass
                else:
                    softwares.append(i)
    
        return render(request, 'form/ansible.html',{
            'softwares':softwares,  将两个值渲染到前端
            'hosts':hosts
        })
    
    
    def Get_data(request):  #获取数据
        import os,re
        from itertools import islice
    #    ip = request.POST('ip')
        ip=str(request.POST.getlist('hosts')) #获取前端传递的值
    
        software=request.POST.getlist('software')#获取前端传递的值
        os.system('chmod 600 wls/static/gitlabilanni.gitlabilanni')  #给与key权限
        License = 'wls/static/gitlabilanni.gitlabilanni'  #key目录
        InventoryFile='wls/static/hosts'
        if ip != [] and software != []:
            installfile = 'wls/static/yaml/%s' % (software[0])
            a=ansinstall.MyRunner(InventoryFile,ip,installfile,License)
            result=a.Install()
            wo=a.get_result()  #执行安装
        else:
            wo=''
        f=open(InventoryFile)
        hosts=[line.strip('\n') for line in islice(f,1,None)]
        f.close()
        softwares = []
        for root, dirs, files in os.walk('wls/static/yaml/'):
            for i in files:
                if  re.match(r'.*\.retry',i):
                    pass
                else:
                    softwares.append(i)
    
        return HttpResponse(json.dumps({
            'result':wo  #返回结果
        }))
    还有就是ansible api接口 如果没接口 一切都是扯淡  以下是我写的ansible api接口
    这个接口重写了代码，以下是2.4的ansible api接口，至于这个API接口我不多做解释，不懂可以看下官方文档。

#!/usr/bin/env python
    
    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
    from ansible.executor.playbook_executor import PlaybookExecutor
    from tempfile import NamedTemporaryFile
    
    class ResultCallback(CallbackBase):
        """A sample callback plugin used for performing an action as results come in
    
        If you want to collect all results into a single object for processing at
        the end of the execution, look into utilizing the ``json`` callback plugin
        or writing your own custom callback plugin
        """
    
        def __init__(self, *args, **kwargs):
            super(ResultCallback, self).__init__(*args, **kwargs)
            self.host_ok = {}
            self.host_unreachable = {}
            self.host_failed = {}
    
        def v2_runner_on_unreachable(self, result):
            self.host_unreachable[result._host.get_name()] = result
    
        def v2_runner_on_ok(self, result, *args, **kwargs):
            self.host_ok[result._host.get_name()] = result
    
        def v2_runner_on_failed(self, result, *args, **kwargs):
            self.host_failed[result._host.get_name()] = result
    class MyRunner(object):
        def __init__(self,InventoryFile,Host,installfile,License):
            self.InventoryFile=InventoryFile
            self.Host=Host
            self.installfile=installfile
            self.License=License
        def Install(self):
                self.loader = DataLoader()
                self.results_callback = ResultCallback()
                self.inventory = InventoryManager(loader=self.loader,sources=self.InventoryFile,)
                variable_manager = VariableManager(loader=self.loader, inventory=self.inventory)
                variable_manager.extra_vars={"Host":self.Host}
                Options = namedtuple('Options',
                             ['connection',
                              'remote_user',
                              'ask_sudo_pass',
                              'verbosity',
                              'ack_pass',
                              'module_path',
                              'forks',
                              'become',
                              'become_method',
                              'become_user',
                              'check',
                              'listhosts',
                              'listtasks',
                              'listtags',
                              'syntax',
                              'sudo_user',
                              'sudo',
                              'diff',
                              'private_key_file',
                              ])
                options = Options(connection='smart',
                               remote_user='admin',
                               ack_pass=None,
                               sudo_user='root',
                               forks=100,
                               sudo='yes',
                               ask_sudo_pass=False,
                               verbosity=0,
                               module_path=None,
                               become=True,
                               become_method='sudo',
                               become_user='root',
                               check=None,
                               listhosts=None,
                               listtasks=None,
                               listtags=None,
                               syntax=None,
                               diff=None,
                               private_key_file=self.License,
                                  )
    
        # actually run it
                tqm = None
                try:
                        playbook = PlaybookExecutor(playbooks=[self.installfile],inventory=self.inventory,
                        variable_manager=variable_manager,
                        loader=self.loader,options=options,passwords=None)
                        playbook._tqm._stdout_callback=self.results_callback
                        result = playbook.run()
                finally:
                        if tqm is not None:
                                tqm.cleanup()
        def get_result(self):
            self.results_raw = {'success': {}, 'failed': {}, 'unreachable': {}}
            for host, result in self.results_callback.host_ok.items():
                self.results_raw['success'][host] = result._result
    
            for host, result in self.results_callback.host_failed.items():
                self.results_raw['failed'][host] = result._result['msg']
    
            for host, result in self.results_callback.host_unreachable.items():
                self.results_raw['unreachable'][host] = result._result['msg']
            if self.results_raw == None:
                self.results_raw={'Messages':'test'}
            return self.results_raw
    if __name__=='__main__':
        installfile='static/yaml/pm2'
        InventoryFile='/tmp/123'
        Host='10.1.31.45'
        License='/root/gitlabilanni.gitlabilanni'
        a=MyRunner(InventoryFile,Host,installfile,License)
        result=a.Install()
        wo=a.get_result()
        print(wo)

[images]: http://www.yingjianjian.com/wp-content/uploads/2018/01/c9706f183728b58d23aa344fa7856ece.png