Python如何实现Paramiko的二次封装
Paramiko是一个用于执行SSH命令的Python第三方库，使用该库可实现自动化运维的所有任务，如下是一些常用代码的封装方式，多数代码为半成品，只是敲代码时的备份副本防止丢失，仅供参考。
目前本人巡检百台设备完全无压力，如果要巡检过千台则需要多线程的支持，过万台则需要加入智能判断等。
实现命令执行: 直接使用过程化封装,执行CMD命令.
import paramikossh = paramiko.SSHClient()ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())def BatchCMD(address,username,password,port,command): try: ssh.connect(hostname=address,username=username,password=password,port=port,timeout=2) stdin , stdout , stderr = ssh.exec_command(command) result = stdout.read() if len(result) != 0: result = str(result).replace('n', 'n') result = result.replace('b’', '').replace('’', '') return result else: return None except Exception: return None
实现磁盘巡检: 获取磁盘空间并返回字典格式
def GetAllDiskSpace(address,username,password,port): ref_dict = {} cmd_dict = {'Linuxn' : 'df | grep -v ’Filesystem’ | awk ’{print $5 ':' $6}’','AIXn' : 'df | grep -v ’Filesystem’ | awk ’{print $4 ':' $7}’'} # 首先检测系统版本 os_version = BatchCMD(address,username,password,port,'uname') for version,run_cmd in cmd_dict.items(): if(version == os_version): # 根据不同版本选择不同的命令 os_ref = BatchCMD(address,username,password,port,run_cmd) ref_list= os_ref.split('n') # 循环将其转换为字典 for each in ref_list:# 判断最后是否为空,过滤最后一项if each != '': ref_dict[str(each.split(':')[1])] = str(each.split(':')[0]) return ref_dict# 磁盘巡检总函数def DiskMain(): with open('db.json', 'r', encoding='utf-8') as read_fp: load_json = read_fp.read() js = json.loads(load_json) base = js.get('base') count = len(base) for each in range(0,count): print('033[37m-033[0m' * 80) print('033[35m 检测地址: {0:10} t 用户名: {1:10} t 密码: {2:10} t 端口: {3:4}033[0m'.format(base[each][1],base[each][2],base[each][3],base[each][4])) print('033[37m-033[0m' * 80) ref = GetAllDiskSpace(base[each][1],base[each][2],base[each][3],base[each][4]) for k,v in ref.items():# 判断是否存在空盘if( v.split('%')[0] != '-'): # 将占用百分比转换为整数 space_ret = int(v.split('%')[0]) if space_ret >= 70: print('033[31m 磁盘分区: {0:30} t 磁盘占用: {1:5} 033[0m'.format(k,v)) continue if space_ret >= 50: print('033[33m 磁盘分区: {0:30} t 磁盘占用: {1:5} 033[0m'.format(k, v)) continue else: print('033[34m 磁盘分区: {0:30} t 磁盘占用: {1:5} 033[0m'.format(k, v)) continue print()# 组内传递用户名密码时调用此方法def GroupDiskMain(address,username,password,port): ref = GetAllDiskSpace(address,username,password,port) for k, v in ref.items(): if (v.split('%')[0] != '-'): space_ret = int(v.split('%')[0]) if space_ret >= 70:print('磁盘分区: {0:30} t 磁盘占用: {1:5} -> [警告]'.format(k, v))continue if space_ret >= 50:print('磁盘分区: {0:30} t 磁盘占用: {1:5} -> [警惕]'.format(k, v))continue else:print('磁盘分区: {0:30} t 磁盘占用: {1:5} -> [正常]'.format(k, v))continue print()
获取系统内存利用率: 获取系统内存利用率
def GetAllMemSpace(address,username,password,port): cmd_dict = {'Linuxn' : 'cat /proc/meminfo | head -n 2 | awk ’{print $2}’ | xargs | awk ’{print $1 ':' $2}’','AIXn' : 'df | grep -v ’Filesystem’ | awk ’{print $4 ':' $7}’'} # 首先检测系统版本 os_version = BatchCMD(address,username,password,port,'uname') for version,run_cmd in cmd_dict.items(): if(version == os_version): # 根据不同版本选择不同的命令 os_ref = BatchCMD(address,username,password,port,run_cmd) # 首先现将KB转化为MB mem_total = math.ceil( int(os_ref.split(':')[0].replace('n','')) / 1024) mem_free = math.ceil(int(os_ref.split(':')[1].replace('n','')) / 1024) mem_used = str( int(mem_total) - int(mem_free)) # 计算占用空间百分比 percentage = 100 - int(mem_free / int(mem_total / 100)) print('内存总计空间: {}'.format(str(mem_total) + ' MB')) print('内存剩余空间: {}'.format(str(mem_free) + ' MB')) print('内存已用空间: {}'.format(str(mem_used) + ' MB')) print('计算百分比: {}'.format(str(percentage) + ' %'))
获取系统进程信息: 获取系统进程信息,并返回字典格式
def GetAllProcessSpace(address,username,password,port): ref_dict = {} cmd_dict = {'Linuxn' : 'ps aux | grep -v ’USER’ | awk ’{print $2 ':' $11}’ | uniq','AIXn' : 'ps aux | grep -v ’USER’ | awk ’{print $2 ':' $12}’ | uniq'} os_version = BatchCMD(address,username,password,port,'uname') for version,run_cmd in cmd_dict.items(): if(version == os_version): os_ref = BatchCMD(address, username, password, port, run_cmd) ref_list = os_ref.split('n') for each in ref_list:if each != '': ref_dict[str(each.split(':')[0])] = str(each.split(':')[1]) return ref_dict# 巡检进程是否存在def ProcessMain(): with open('db.json', 'r', encoding='utf-8') as read_fp: load_json = read_fp.read() js = json.loads(load_json) process = js.get('process') process_count = len(process) for x in range(0,process_count): # 根据process中的值查询base中的账号密码 base = js.get('base') if( list(process[x].keys())[0] == base[x][0] ):# 拿到账号密码之后再提取出他们的进程ID于进程名print('033[37m-033[0m' * 80)print('033[35m 检测地址: {0:10} t 用户名: {1:10} t 密码: {2:10} t 端口: {3:4}033[0m'. format(base[x][1], base[x][2], base[x][3], base[x][4]))print('033[37m-033[0m' * 80)ref_dic = GetAllProcessSpace(base[x][1],base[x][2],base[x][3],base[x][4])# ref_val = 全部进程列表 proc_val = 需要检测的进程列表ref_val = list(ref_dic.values())proc_val = list(process[x].values())[0]# 循环比较是否在列表中for each in proc_val: flag = each in ref_val if(flag == True): print('033[34m 进程: {0:50} 状态: √ 033[0m'.format(each)) else: print('033[31m 进程: {0:50} 状态: × 033[0m'.format(each))
实现剧本运行功能: 针对特定一台主机运行剧本功能，随便写的一个版本，仅供参考
def RunRule(address,username,password,port,playbook): os_version = BatchCMD(address,username,password,port,'uname') if(os_version == list(playbook.keys())[0]): play = list(playbook.values())[0] print() print('033[37m-033[0m' * 130) print('033[35m 系统类型: {0:4} t 地址: {1:10} t 用户名: {2:10} t 密码: {3:15} t 端口: {4:4}033[0m' .format(os_version.replace('n',''),address,username,password,port)) print('033[37m-033[0m' * 130) for each in range(0,len(play)): RunCmd = play[each] + ' > /dev/null 2>&1 && echo $?' print('033[30m [>] 派发命令: {0:100} t 状态: {1:5} 033[0m'.format(RunCmd.replace(' > /dev/null 2>&1 && echo $?', ''),'正在派发')) os_ref = BatchCMD(address, username, password, port, RunCmd) if(os_ref == '0n'):print('033[34m [√] 运行命令: {0:100} t 状态: {1:5} 033[0m'.format( RunCmd.replace(' > /dev/null 2>&1 && echo $?',''),'派发完成')) else:print('033[31m [×] 运行命令: {0:100} t 状态: {1:5} 033[0m'.format( RunCmd.replace(' > /dev/null 2>&1 && echo $?',''),'派发失败'))# 既然失败了,就把剩下的也打出来吧,按照失败处理for x in range(each+1,len(play)): print('033[31m [×] 运行命令: {0:100} t 状态: {1:5} 033[0m'.format( play[x].replace(' > /dev/null 2>&1 && echo $?', ''), '终止执行'))break else: return 0# 批量: 传入主机组不同主机执行不同剧本def RunPlayBook(HostList,PlayBook): count = len(HostList) error = [] success = [] for each in range(0,count): ref = RunRule(HostList[each][0],HostList[each][1],HostList[each][2],HostList[each][3],PlayBook) if ref == 0: error.append(HostList[each][0]) else: success.append(HostList[each][0]) print('nn') print('-' * 130) print('执行清单') print('-' * 130) for each in success: print('成功主机: {}'.format(each)) for each in error: print('失败主机: {}'.format(each))# 运行测试def PlayBookRun(): playbook = { 'Linuxn':[ 'ifconfig', 'vmstat', 'ls', 'netstat -an', 'ifconfis', 'cat /etc/passwd | grep ’root’ | awk ’{print $2}’'] } addr_list = [ ['192.168.1.127', 'root', '1233', '22'], ['192.168.1.126', 'root', '1203', '22'] ] # 指定addr_list这几台机器执行playbook剧本 RunPlayBook(addr_list,playbook)
过程化实现文件上传下载: 文件传输功能 PUT上传 GET下载
def BatchSFTP(address,username,password,port,soruce,target,flag): transport = paramiko.Transport((address, int(port))) transport.connect(username=username, password=password) sftp = paramiko.SFTPClient.from_transport(transport) if flag == 'PUT': try: ret = sftp.put(soruce, target) if ret !='':transport.close()return 1 else:transport.close()return 0 transport.close() except Exception: transport.close() return 0 elif flag == 'GET': try: target = str(address + '_' + target) os.chdir('./recv_file') ret = sftp.get(soruce, target) if ret != '':transport.close()return 1 else:transport.close()return 0 transport.close() except Exception: transport.close() return 0# 批量将本地文件 source 上传到目标 target 中def PutRemoteFile(source,target): with open('db.json', 'r', encoding='utf-8') as fp: load_json = fp.read() js = json.loads(load_json) base = js.get('base') print('-' * 130) print('接收主机 tt 登录用户 t 登录密码 t 登录端口 t 本地文件 tt 传输到 ttt 传输状态') print('-' * 130) for each in range(0,len(base)): # 先判断主机是否可通信 ref = BatchCMD(base[each][1], base[each][2], base[each][3], base[each][4],'uname') if ref == None:print('033[31m{0:15} t {1:6} t {2:10} t {3:3} t {4:10} t {5:10} t 未连通033[0m'.format( base[each][1],base[each][2],base[each][3],base[each][4],source,target))continue ref = BatchSFTP(base[each][1],base[each][2],base[each][3],base[each][4],source,target,'PUT') if(ref == 1):print('033[34m{0:15} t {1:6} t {2:10} t {3:3} t {4:10} t {5:10} t 传输成功033[0m'.format( base[each][1],base[each][2],base[each][3],base[each][4],source,target)) else:print('033[31m{0:15} t {1:6} t {2:10} t {3:3} t {4:10} t {5:10} t 传输失败033[0m'.format( base[each][1], base[each][2], base[each][3], base[each][4], source, target))# 批量将目标文件拉取到本地特定目录(存在缺陷)def GetRemoteFile(source,target): with open('db.json', 'r', encoding='utf-8') as fp: load_json = fp.read() js = json.loads(load_json) base = js.get('base') print('-' * 130) print('发送主机 tt 登录用户 t 登录密码 t 登录端口 tt 远程文件 tt 拉取到 ttt 传输状态') print('-' * 130) for each in range(0,len(base)): ref = BatchCMD(base[each][1], base[each][2], base[each][3], base[each][4], 'uname') if ref == None:print('033[31m{0:15} t {1:6} t {2:10} t {3:3} t {4:10} t {5:10} t 未连通033[0m'.format( base[each][1], base[each][2], base[each][3], base[each][4], source, target))continue ref = BatchSFTP(base[each][1],base[each][2],base[each][3],base[each][4],source,target,'GET') if(ref == 1):print('033[34m{0:15} t {1:6} t {2:10} t {3:3} t {4:10} t {5:10} t 传输成功033[0m'.format( base[each][1],base[each][2],base[each][3],base[each][4],source,target)) else:print('033[31m{0:15} t {1:6} t {2:10} t {3:3} t {4:10} t {5:10} t 传输失败033[0m'.format( base[each][1], base[each][2], base[each][3], base[each][4], source, target))
另一种命令执行方法:
import paramikossh = paramiko.SSHClient()ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())def BatchCMD(address,username,password,port,command): try: ssh.connect(hostname=address,username=username,password=password,port=port,timeout=2) stdin , stdout , stderr = ssh.exec_command(command) result = stdout.read() if len(result) != 0: return result else: return -1 except Exception: return -1# 通过获取主机Ping状态def GetPing(): fp = open('unix_base.db', 'r', encoding='utf-8') count = len(open('unix_base.db', 'r', encoding='utf-8').readlines()) print('-' * 100) print('{0:20} t {1:10} t {2:13} t {3:5} t {4:9} t {5:40}'.format('IP地址','机器系统','设备SN','机房位置','存活状态','主机作用')) print('-' * 100) for each in range(count): ref = eval(fp.readline()) ret = BatchCMD(ref[0],ref[5],ref[6],22,'pwd | echo $?') if(int(ret)==0): print('{0:20} t {1:10} t {2:11} t {3:5} t {4:9} t {5:40}'. format(ref[0],ref[1],ref[2],ref[3],'正常',ref[4])) else: print('{0:20} t {1:10} t {2:13} t {3:5} t {4:9} t {5:40}'. format(ref[0],ref[1],ref[2],ref[3],'异常',ref[4])) fp.close()# ps aux | grep 'usbCfgDev' | grep -v 'grep' | awk {’print $2’}def GetProcessStatus(): fp = open('unix_process.db', 'r', encoding='utf-8') count = len(open('unix_process.db', 'r', encoding='utf-8').readlines()) for each in range(count): proc = eval(fp.readline()) proc_len = len(proc) print('-' * 70) print('---> 巡检地址: {0:10} t 登录用户: {1:7} t 登录密码: {2:10}'.format(proc[0],proc[1],proc[2])) print('-' * 70) for process in range(3, proc_len): command = 'ps aux | grep ’{}’ | grep -v ’grep’ | awk ’{}’ | head -1'.format(proc[process],'{print $2}') try:ref = BatchCMD(proc[0],proc[1],proc[2],22,command)if(int(ref)!=-1): print('进程: {0:18} t PID: {1:10} t 状态: {2}'.format(proc[process], int(ref),'√'))else: print('进程: {0:18} t PID:{1:10} t 状态: {2}'.format(proc[process], 0,'×')) except Exception:print('进程: {0:18} t PID:{1:10} t 状态: {2}'.format(proc[process], 0,'×')) print() fp.close()def GetDiskStatus(): fp = open('unix_disk.db', 'r', encoding='utf-8') count = len(open('unix_disk.db', 'r', encoding='utf-8').readlines()) for each in range(count): proc = eval(fp.readline()) proc_len = len(proc) print('-' * 100) print('---> 巡检地址: {0:10} t 登录系统: {1:7} t 登录账号: {2:10} 登录密码: {3:10}'. format(proc[0],proc[1],proc[2],proc[3])) print('-' * 100) try: ref = BatchCMD(proc[0], proc[2], proc[3], 22, 'df | grep -v ’Filesystem’') st = str(ref).replace('n', 'n') print(st.replace('b’', '').replace('’', '')) except Exception: pass print() fp.close()# 运行命令def RunCmd(command,system): fp = open('unix_disk.db', 'r', encoding='utf-8') count = len(open('unix_disk.db', 'r', encoding='utf-8').readlines()) for each in range(count): proc = eval(fp.readline()) proc_len = len(proc) if proc[1] == system: print('-' * 100) print('---> 巡检地址: {0:10} t 登录系统: {1:7} t 登录账号: {2:10} 登录密码: {3:10}'. format(proc[0],proc[1],proc[2],proc[3])) print('-' * 100) try:ref = BatchCMD(proc[0], proc[2], proc[3], 22, command)st = str(ref).replace('n', 'n')print(st.replace('b’', '').replace('’', '')) except Exception:pass fp.close()
面向对象的封装方法: 使用面向对象封装，可极大的提高复用性。
import paramikoclass MySSH: def __init__(self,address,username,password,default_port = 22): self.address = address self.default_port = default_port self.username = username self.password = password self.obj = paramiko.SSHClient() self.obj.set_missing_host_key_policy(paramiko.AutoAddPolicy()) self.obj.connect(self.address,self.default_port,self.username,self.password) self.objsftp = self.obj.open_sftp() def BatchCMD(self,command): stdin , stdout , stderr = self.obj.exec_command(command) result = stdout.read() if len(result) != 0: result = str(result).replace('n', 'n') result = result.replace('b’', '').replace('’', '') return result else: return None def GetRemoteFile(self,remotepath,localpath): self.objsftp.get(remotepath,localpath) def PutLocalFile(self,localpath,remotepath): self.objsftp.put(localpath,remotepath) def GetFileSize(self,file_path): ref = self.BatchCMD('du -s ' + file_path + ' | awk ’{print $1}’') return ref def CloseSSH(self): self.objsftp.close() self.obj.close()if __name__ == ’__main__’: ssh = MySSH(’192.168.191.3’,’root’,’1233’,22) ref = ssh.BatchCMD('ifconfig') print(ref) sz = ssh.GetFileSize('/etc/passwd') print(sz) ssh.CloseSSH()第二次封装完善。import paramiko,os,json,reclass MySSH: def __init__(self,address,username,password,default_port = 22): self.address = address self.default_port = default_port self.username = username self.password = password try: self.obj = paramiko.SSHClient() self.obj.set_missing_host_key_policy(paramiko.AutoAddPolicy()) self.obj.connect(self.address,self.default_port,self.username,self.password,timeout=3,allow_agent=False,look_for_keys=False) self.objsftp = self.obj.open_sftp() except Exception: pass def BatchCMD(self,command): try: stdin , stdout , stderr = self.obj.exec_command(command,timeout=3) result = stdout.read() if len(result) != 0:result = str(result).replace('n', 'n')result = result.replace('b’', '').replace('’', '')return result else:return None except Exception: return None def GetRemoteFile(self,remote_path,local_path): try: self.objsftp.get(remote_path,local_path) return True except Exception: return False def PutLocalFile(self,localpath,remotepath): try: self.objsftp.put(localpath,remotepath) return True except Exception: return False def CloseSSH(self): self.objsftp.close() self.obj.close() # 获取文件大小 def GetFileSize(self,file_path): ref = self.BatchCMD('du -s ' + file_path + ' | awk ’{print $1}’') return ref.replace('n','') # 判断文件是否存在 def IsFile(self,file_path): return self.BatchCMD('[ -e {} ] && echo ’True’ || echo ’False’'.format(file_path))
通过Eval函数解析执行: 自定义语法规则与函数,通过Eval函数实现解析执行. 没写完，仅供参考。
import json,os,sys,mathimport argparse,time,reimport paramikossh = paramiko.SSHClient()ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())def BatchCMD(address,username,password,port,command): try: ssh.connect(hostname=address,username=username,password=password,port=port,timeout=2) stdin , stdout , stderr = ssh.exec_command(command) result = stdout.read() if len(result) != 0: result = str(result).replace('n', 'n') result = result.replace('b’', '').replace('’', '') return result else: return None except Exception: return None# ------------------------------------------------------------------------# 内置解析方法def GetDisk(x): return str(x)def GetCPULoad(): return str(10)# 句式解析器,解析句子并执行def judge(string): # 如果匹配到IF则执行判断条件解析 if re.findall(r’IF{ (.*?) }’, string, re.M) != []: # 则继续提取出他的表达式 ptr = re.compile(r’IF[{] (.*?) [}]’,re.S) subject = re.findall(ptr,string)[0] subject_list = subject.split(' ') # 拼接语句并执行 sentence = eval(subject_list[0]) + subject_list[1] + subject_list[2] # 组合后执行,返回结果 if eval(sentence): return 'IF' else: return False # 如果匹配到put则执行上传解析 elif re.findall(r’PUT{ (.*?) }’, string, re.M) != []: print('put') return False# 获取特定目录下所有的剧本def GetAllRule(): rootdir = os.getcwd() + 'rule' all_files = [f for f in os.listdir(rootdir)] print('-' * 90) print('{0:15} t {1:10} t {2:10} t {3:5} t {4:5}'.format('剧本名称','应用平台','应用端口','执行主机数','命令条数')) print('-' * 90) for switch in all_files: # 首先判断文件结尾是否为Json if( switch.endswith('.json') == True): all_switch_dir = rootdir + switch try:# 判断文件内部是否符合JSON规范with open(all_switch_dir , 'r' ,encoding='utf-8') as read_file: # 判断是否存在指定字段来识别规范 load = json.loads(read_file.read()) if load.get('framework') != None and load.get('task_sequence') != None: run_addr_count = len(load.get('address_list')) command_count = len(load.get('task_sequence')) print('{0:15} t {1:10} {2:10} tt {3:5} tt {4:5}'. format(switch,load.get('framework'),load.get('default_port'),run_addr_count,command_count)) except ValueError:pass# 指定一个剧本并运行def RunPlayBook(rule_name): rootdir = os.getcwd() + 'rule' all_files = [f for f in os.listdir(rootdir)] for switch in all_files: if( switch.endswith('.json') == True): all_switch_dir = rootdir + switch # 寻找到需要加载的剧本地址 if( switch == rule_name):with open(all_switch_dir , 'r' ,encoding='utf-8') as read_file: data = json.loads(read_file.read()) address_list = data.get('address_list') # 循环每个主机任务 for each in address_list: # 得到剧本内容 task_sequence = data.get('task_sequence') default_port = data.get('default_port') print('-' * 90) print('地址: {0:15} 用户名: {1:10} 密码: {2:10}'.format(each[0],each[1],each[2])) print('-' * 90) for task in task_sequence: flag = judge(task[0]) if flag == 'IF':ref = BatchCMD(each[0],each[1],each[2],default_port,task[1])print(ref) elif flag == False:ref = BatchCMD(each[0],each[1],each[2],default_port,task[0])print(ref)if __name__ == '__main__': RunPlayBook('get_log.json')
定义剧本规范如下。
{ 'framework': 'Centos', 'version': '7.0', 'address_list': [ ['192.168.191.3','root','1233'] ], 'default_port': '22', 'task_sequence': [ ['ifconfig'], ['IF{ GetLastCmdFlag() == True }','uname'] ]}
词法分析: 词法分析解析剧本内容。
# 获取特定目录下所有的剧本def GetAllRule(): rootdir = os.getcwd() + 'rule' all_files = [f for f in os.listdir(rootdir)] print('-' * 90) print('{0:15} t {1:10} t {2:10} t {3:5} t {4:5}'.format('剧本名称','应用平台','应用端口','执行主机数','命令条数')) print('-' * 90) for switch in all_files: # 首先判断文件结尾是否为Json if( switch.endswith('.json') == True): all_switch_dir = rootdir + switch try:# 判断文件内部是否符合JSON规范with open(all_switch_dir , 'r' ,encoding='utf-8') as read_file: # 判断是否存在指定字段来识别规范 load = json.loads(read_file.read()) if load.get('framework') != None and load.get('task_sequence') != None: run_addr_count = len(load.get('address_list')) command_count = len(load.get('task_sequence')) print('{0:15} t {1:10} {2:10} tt {3:5} tt {4:5}'. format(switch,load.get('framework'),load.get('default_port'),run_addr_count,command_count)) except ValueError:pass# 句式解析器,解析句子并执行def judge(string): # 如果匹配到IF则执行判断条件解析 if re.findall(r’IF{ (.*?) }’, string, re.M) != []: # 则继续提取出他的表达式 ptr = re.compile(r’IF[{] (.*?) [}]’,re.S) subject = re.findall(ptr,string)[0] subject_list = subject.split(' ') # 公开接口,执行命令 ssh = MySSH('192.168.191.3','root','1233','22') # 组合命令并执行 sentence = str(eval(subject_list[0]) + subject_list[1] + subject_list[2]) if eval(sentence): return 'IF',ssh else: return False # 如果匹配到put则执行上传解析 elif re.findall(r’PUT{ (.*?) }’, string, re.M) != []: print('put') return False# 指定一个剧本并运行def RunPlayBook(rule_name): rootdir = os.getcwd() + 'rule' all_files = [f for f in os.listdir(rootdir)] for switch in all_files: if( switch.endswith('.json') == True): all_switch_dir = rootdir + switch # 寻找到需要加载的剧本地址 if( switch == rule_name):with open(all_switch_dir , 'r' ,encoding='utf-8') as read_file: data = json.loads(read_file.read()) address_list = data.get('address_list') # 循环每个主机任务 for each in address_list: # 得到剧本内容 task_sequence = data.get('task_sequence') default_port = data.get('default_port') print('-' * 90) print('地址: {0:15} 用户名: {1:10} 密码: {2:10}'.format(each[0],each[1],each[2])) print('-' * 90) for task in task_sequence: flag,obj = judge(task[0]) if flag == 'IF':ret = obj.BatchCMD(task[1])print(ret)if __name__ == ’__main__’: ret = judge('IF{ ssh.GetFileSize(’/etc/passwd’) >= 4 }') print(ret)
MySSH类最终封装: 通过面向对象对其进行封装，实现了查询CPU,负载，内存利用率，磁盘容量，等通用数据的获取。
import paramiko, math,jsonclass MySSH: def __init__(self, address, username, password, default_port): self.address = address self.default_port = default_port self.username = username self.password = password # 初始化,远程模块 def Init(self): try: self.ssh_obj = paramiko.SSHClient() self.ssh_obj.set_missing_host_key_policy(paramiko.AutoAddPolicy()) self.ssh_obj.connect(self.address, self.default_port, self.username, self.password, timeout=3, allow_agent=False, look_for_keys=False) self.sftp_obj = self.ssh_obj.open_sftp() except Exception: return False # 执行非交互命令 def BatchCMD(self, command): try: stdin, stdout, stderr = self.ssh_obj.exec_command(command, timeout=3) result = stdout.read() if len(result) != 0:result = str(result).replace('n', 'n')result = result.replace('b’', '').replace('’', '')return result else:return None except Exception: return None # 将远程文件下载到本地 def GetRemoteFile(self, remote_path, local_path): try: self.sftp_obj.get(remote_path, local_path) return True except Exception: return False # 将本地文件上传到远程 def PutLocalFile(self, localpath, remotepath): try: self.sftp_obj.put(localpath, remotepath) return True except Exception: return False # 关闭接口 def CloseSSH(self): try: self.sftp_obj.close() self.ssh_obj.close() except Exception: pass # 获取文件大小 def GetFileSize(self, file_path): ref = self.BatchCMD('du -s ' + file_path + ' | awk ’{print $1}’') return ref.replace('n', '') # 判断文件是否存在 def IsFile(self, file_path): return self.BatchCMD('[ -e {} ] && echo ’True’ || echo ’False’'.format(file_path)) # 获取系统型号 def GetSystemVersion(self): return self.BatchCMD('uname') # 检测目标主机存活状态 def GetPing(self): try: if self.GetSystemVersion() != None:return True else:return False except Exception: return False # 获取文件列表,并得到大小 def GetFileList(self, path): try: ref_list = [] self.sftp_obj.chdir(path) file_list = self.sftp_obj.listdir('./') for sub_path in file_list:dict = {}file_size = self.GetFileSize(path + sub_path)dict[path + sub_path] = file_sizeref_list.append(dict) return ref_list except Exception: return False # 将远程文件全部打包后拉取到本地 def GetTarPackageAll(self, path): try: file_list = self.sftp_obj.listdir(path) self.sftp_obj.chdir(path) for packageName in file_list:self.ssh_obj.exec_command('tar -czf /tmp/{0}.tar.gz {0}'.format(packageName))self.sftp_obj.get('/tmp/{}.tar.gz'.format(packageName), './file/{}.tar.gz'.format(packageName))self.sftp_obj.remove('/tmp/{}.tar.gz'.format(packageName))return True except Exception: return True # 获取磁盘空间并返回字典 def GetAllDiskSpace(self): ref_dict = {} cmd_dict = {'Linuxn': 'df | grep -v ’Filesystem’ | awk ’{print $5 ':' $6}’', 'AIXn': 'df | grep -v ’Filesystem’ | awk ’{print $4 ':' $7}’' } try: os_version = self.GetSystemVersion() for version, run_cmd in cmd_dict.items():if (version == os_version): # 根据不同版本选择不同的命令 os_ref = self.BatchCMD(run_cmd) ref_list = os_ref.split('n') # 循环将其转换为字典 for each in ref_list: # 判断最后是否为空,过滤最后一项 if each != '': ref_dict[str(each.split(':')[1])] = str(each.split(':')[0]) return ref_dict except Exception: return False # 获取系统内存利用率 def GetAllMemSpace(self): cmd_dict = {'Linuxn': 'cat /proc/meminfo | head -n 2 | awk ’{print $2}’ | xargs | awk ’{print $1 ':' $2}’', 'AIXn': 'svmon -G | grep -v ’virtual’ | head -n 1 | awk ’{print $2 ':' $4}’' } try: os_version = self.GetSystemVersion() for version, run_cmd in cmd_dict.items():if (version == os_version): # 根据不同版本选择不同的命令 os_ref = self.BatchCMD(run_cmd) # 首先现将KB转化为MB mem_total = math.ceil(int(os_ref.split(':')[0].replace('n', '')) / 1024) mem_free = math.ceil(int(os_ref.split(':')[1].replace('n', '')) / 1024) # 计算占用空间百分比 percentage = 100 - int(mem_free / int(mem_total / 100)) # 拼接字典数据 return {'Total': str(mem_total), 'Free': str(mem_free), 'Percentage': str(percentage)} except Exception: return False # 获取系统进程信息,并返回字典格式 def GetAllProcessSpace(self): ref_dict = {} cmd_dict = {'Linuxn': 'ps aux | grep -v ’USER’ | awk ’{print $2 ':' $11}’ | uniq', 'AIXn': 'ps aux | grep -v ’USER’ | awk ’{print $2 ':' $12}’ | uniq' } try: os_version = self.GetSystemVersion() for version, run_cmd in cmd_dict.items():if (version == os_version): os_ref = self.BatchCMD(run_cmd) ref_list = os_ref.split('n') for each in ref_list: if each != '': ref_dict[str(each.split(':')[0])] = str(each.split(':')[1]) return ref_dict except Exception: return False # 获取CPU利用率 def GetCPUPercentage(self): ref_dict = {} cmd_dict = {'Linuxn': 'vmstat | tail -n 1 | awk ’{print $13 ':' $14 ':' $15}’', 'AIXn': 'vmstat | tail -n 1 | awk ’{print $14 ':' $15 ':' $16}’' } try: os_version = self.GetSystemVersion() for version, run_cmd in cmd_dict.items():if (version == os_version): os_ref = self.BatchCMD(run_cmd) ref_list = os_ref.split('n') for each in ref_list: if each != '': each = each.split(':') ref_dict = {'us': each[0],'sys':each[1],'idea':each[2]} return ref_dict except Exception: return False # 获取机器的负载情况 def GetLoadAVG(self): ref_dict = {} cmd_dict = {'Linuxn': 'uptime | awk ’{print $10 ':' $11 ':' $12}’', 'AIXn': 'uptime | awk ’{print $10 ':' $11 ':' $12}’' } try: os_version = self.GetSystemVersion() for version, run_cmd in cmd_dict.items():if (version == os_version): os_ref = self.BatchCMD(run_cmd) ref_list = os_ref.split('n') for each in ref_list: if each != '': each = each.replace(',','').split(':') ref_dict = {'1avg': each[0],'5avg': each[1],'15avg': each[2]} return ref_dict return False except Exception: return False # 修改当前用户密码 def SetPasswd(self,username,password): try: os_id = self.BatchCMD('id | awk {’print $1’}') print(os_id) if(os_id == 'uid=0(root)n'):self.BatchCMD('echo ’{}’ | passwd --stdin ’{}’ > /dev/null'.format(password,username))return True except Exception: return False# 定义超类,集成基类MySSHclass SuperSSH(MySSH): def __init__(self,address, username, password, default_port): super(SuperSSH, self).__init__(address, username, password, default_port)
我们继续为上面的代码加上命令行，让其可以直接使用，这里需要遵循一定的格式规范，我们使用JSON解析数据，JSON格式如下.
{ 'aix': [ ['192.168.1.1','root','123123'], ['192.168.1.1','root','2019'], ], 'suse': [ ['192.168.1.1','root','123123'], ], 'centos': [ ['192.168.1.1','root','123123'], ]}
接着是主程序代码，如下所示.
# -*- coding: utf-8 -*-from MySSH import MySSHimport json,os,sys,argparseclass InitJson(): def __init__(self,db): self.db_name = db def GetPlatform(self,plat): with open(self.db_name, 'r', encoding='utf-8') as Read_Pointer: load_json = json.loads(Read_Pointer.read()) for k,v in load_json.items():try: if k == plat: return vexcept Exception: return None return Noneif __name__ == '__main__': ptr = InitJson('database.json') parser = argparse.ArgumentParser() parser.add_argument('-G','--group',dest='group',help='指定主机组') parser.add_argument('-C','--cmd',dest='cmd',help='指定CMD命令') parser.add_argument('--get',dest='get',help='指定获取数据类型<ping>') parser.add_argument('--dst', dest='dst_file',help='目标位置') parser.add_argument('--src',dest='src_file',help='原文件路径') args = parser.parse_args() # 批量CMD --group=aix --cmd=ls if args.group and args.cmd: platform = ptr.GetPlatform(args.group) success,error = [],[] for each in platform: ssh = MySSH(each[0], each[1], each[2], 22) if ssh.Init() != False:print('-' * 140)print('主机: {0:15} t 账号: {1:10} t 密码: {2:10} t 命令: {3:30}'. format(each[0], each[1], each[2], args.cmd))print('-' * 140)print(ssh.BatchCMD(args.cmd))ssh.CloseSSH()success.append(each[0]) else:error.append(each[0])ssh.CloseSSH() print('nn','-' * 140, 'n 执行报告 n', '-' * 140, 'n失败主机: {}n'.format(error), '-' * 140) # 批量获取主机其他数据 --group=centos --get=ping if args.group and args.get: platform = ptr.GetPlatform(args.group) success, error = [], [] for each in platform:ssh = MySSH(each[0], each[1], each[2], 22)# 判断是否为pingif ssh.Init() != False: if args.get == 'ping': ret = ssh.GetPing() if ret == True: print('[*] 主机: {} 存活中.'.format(each[0])) # 收集磁盘数据 elif args.get == 'disk': print('-' * 140) print('主机: {0:15} t 账号: {1:10} t 密码: {2:10}'. format(each[0], each[1], each[2])) print('-' * 140) ret = ssh.GetAllDiskSpace() for k, v in ret.items(): if (v.split('%')[0] != '-'):space_ret = int(v.split('%')[0])if space_ret >= 70: print('磁盘分区: {0:30} t 磁盘占用: {1:5} -> [警告]'.format(k, v)) continueif space_ret >= 50: print('磁盘分区: {0:30} t 磁盘占用: {1:5} -> [警惕]'.format(k, v)) continueelse: print('磁盘分区: {0:30} t 磁盘占用: {1:5}'.format(k, v)) continue print()else: error.append(each[0]) ssh.CloseSSH() print('nn', '-' * 140, 'n 执行报告 n', '-' * 140, 'n失败主机: {}n'.format(error), '-' * 140) # 实现文件上传过程 --group=centos --src=./a.txt --dst=/tmp/test.txt if args.group and args.src_file and args.dst_file: platform = ptr.GetPlatform(args.group) success, error = [], [] for each in platform: ssh = MySSH(each[0], each[1], each[2], 22) if ssh.Init() != False:ret = ssh.PutLocalFile(args.src_file,args.dst_file)if ret == True: print('主机: {} t 本地文件: {} t ---> 传到: {}'.format(each[0], args.src_file,args.dst_file)) else:error.append(each[0])ssh.CloseSSH() print('nn', '-' * 140, 'n 执行报告 n', '-' * 140, 'n失败主机: {}n'.format(error), '-' * 140)
简单的使用命令：
远程CMD: python main.py --group=centos --cmd='free -h | grep -v ’total’'
判断存活: python main.py --group=centos --get='ping'
拉取磁盘：python main.py --group=suse --get='disk'
批量上传文件: python main.py --group=suse --src='https://www.haobala.com/bcjs/aaa' --dst='/tmp/bbb.txt'
由于我的设备少，所以没开多线程，担心开多线程对目标造成过大压力，也没啥必要。
番外： 另外我研究了一个主机分组的小工具，加上命令执行代码量才800行，实现了一个分组数据库，在这里记下使用方法。
默认运行进入一个交互式shell环境。
Init = 初始化json文件，ShowHostList=显示所有主机，ShowGroup=显示所有组，ShowAllGroup=显示所有主机包括组。
添加修改与删除记录，命令如下。
添加删除主机组。
通过UUID向主机组中添加或删除主机记录。
测试主机组连通性。
以上就是Python如何实现Paramiko的二次封装的详细内容，更多关于Python实现Paramiko的二次封装的资料请关注好吧啦网其它相关文章！
相关文章：
网公网安备