Python如何實現Paramiko的二次封裝

Paramiko是一個用於執行SSH命令的Python第三方庫,使用該庫可實現自動化運維的所有任務,如下是一些常用代碼的封裝方式,多數代碼為半成品,隻是敲代碼時的備份副本防止丟失,僅供參考。

目前本人巡檢百臺設備完全無壓力,如果要巡檢過千臺則需要多線程的支持,過萬臺則需要加入智能判斷等。

實現命令執行: 直接使用過程化封裝,執行CMD命令.

import paramiko

ssh = 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

 實現磁盤巡檢: 獲取磁盤空間並返回字典格式

def GetAllDiskSpace(address,username,password,port):
  ref_dict = {}
  cmd_dict = {"Linux\n" : "df | grep -v 'Filesystem' | awk '{print $5 \":\" $6}'",
        "AIX\n" : "df | grep -v 'Filesystem' | awk '{print $4 \":\" $7}'"
        }
  # 首先檢測系統版本
  os_version = BatchCMD(address,username,password,port,"uname")
  for version,run_cmd in cmd_dict.items():
    if(version == os_version):
      # 根據不同版本選擇不同的命令
      os_ref = BatchCMD(address,username,password,port,run_cmd)
      ref_list= os_ref.split("\n")
      # 循環將其轉換為字典
      for each in ref_list:
        # 判斷最後是否為空,過濾最後一項
        if each != "":
          ref_dict[str(each.split(":")[1])] = str(each.split(":")[0])
  return ref_dict

# 磁盤巡檢總函數
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 檢測地址: {0:10} \t 用戶名: {1:10} \t 密碼: {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():
        # 判斷是否存在空盤
        if( v.split("%")[0] != "-"):
          # 將占用百分比轉換為整數
          space_ret = int(v.split("%")[0])
          if space_ret >= 70:
            print("\033[31m 磁盤分區: {0:30} \t 磁盤占用: {1:5} \033[0m".format(k,v))
            continue
          if space_ret >= 50:
            print("\033[33m 磁盤分區: {0:30} \t 磁盤占用: {1:5} \033[0m".format(k, v))
            continue
          else:
            print("\033[34m 磁盤分區: {0:30} \t 磁盤占用: {1:5} \033[0m".format(k, v))
            continue
      print()

# 組內傳遞用戶名密碼時調用此方法
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("磁盤分區: {0:30} \t 磁盤占用: {1:5} -> [警告]".format(k, v))
        continue
      if space_ret >= 50:
        print("磁盤分區: {0:30} \t 磁盤占用: {1:5} -> [警惕]".format(k, v))
        continue
      else:
        print("磁盤分區: {0:30} \t 磁盤占用: {1:5} -> [正常]".format(k, v))
        continue
  print()

獲取系統內存利用率: 獲取系統內存利用率

def GetAllMemSpace(address,username,password,port):
  cmd_dict = {"Linux\n" : "cat /proc/meminfo | head -n 2 | awk '{print $2}' | xargs | awk '{print $1 \":\" $2}'",
        "AIX\n" : "df | grep -v 'Filesystem' | awk '{print $4 \":\" $7}'"
        }
  # 首先檢測系統版本
  os_version = BatchCMD(address,username,password,port,"uname")
  for version,run_cmd in cmd_dict.items():
    if(version == os_version):
      # 根據不同版本選擇不同的命令
      os_ref = BatchCMD(address,username,password,port,run_cmd)

      # 首先現將KB轉化為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))

      # 計算占用空間百分比
      percentage = 100 - int(mem_free / int(mem_total / 100))

      print("內存總計空間: {}".format(str(mem_total) + " MB"))
      print("內存剩餘空間: {}".format(str(mem_free) + " MB"))
      print("內存已用空間: {}".format(str(mem_used) + " MB"))
      print("計算百分比: {}".format(str(percentage) + " %"))

獲取系統進程信息: 獲取系統進程信息,並返回字典格式

def GetAllProcessSpace(address,username,password,port):
  ref_dict = {}
  cmd_dict = {"Linux\n" : "ps aux | grep -v 'USER' | awk '{print $2 \":\" $11}' | uniq",
        "AIX\n" : "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

# 巡檢進程是否存在
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):
      # 根據process中的值查詢base中的賬號密碼
      base = js.get("base")
      if( list(process[x].keys())[0] == base[x][0] ):
        # 拿到賬號密碼之後再提取出他們的進程ID於進程名
        print("\033[37m-\033[0m" * 80)
        print("\033[35m 檢測地址: {0:10} \t 用戶名: {1:10} \t 密碼: {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 = 全部進程列表 proc_val = 需要檢測的進程列表
        ref_val = list(ref_dic.values())
        proc_val = list(process[x].values())[0]
        # 循環比較是否在列表中
        for each in proc_val:
          flag = each in ref_val
          if(flag == True):
            print("\033[34m 進程: {0:50} 狀態: √ \033[0m".format(each))
          else:
            print("\033[31m 進程: {0:50} 狀態: × \033[0m".format(each))

實現劇本運行功能: 針對特定一臺主機運行劇本功能,隨便寫的一個版本,僅供參考

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 系統類型: {0:4} \t 地址: {1:10} \t 用戶名: {2:10} \t 密碼: {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 [>] 派發命令: {0:100} \t 狀態: {1:5} \033[0m".format(
        RunCmd.replace(" > /dev/null 2>&1 && echo $?", ""),"正在派發"))

      os_ref = BatchCMD(address, username, password, port, RunCmd)
      if(os_ref == "0\n"):
        print("\033[34m [√] 運行命令: {0:100} \t 狀態: {1:5} \033[0m".format(
          RunCmd.replace(" > /dev/null 2>&1 && echo $?",""),"派發完成"))
      else:
        print("\033[31m [×] 運行命令: {0:100} \t 狀態: {1:5} \033[0m".format(
          RunCmd.replace(" > /dev/null 2>&1 && echo $?",""),"派發失敗"))
        # 既然失敗瞭,就把剩下的也打出來吧,按照失敗處理
        for x in range(each+1,len(play)):
          print("\033[31m [×] 運行命令: {0:100} \t 狀態: {1:5} \033[0m".format(
            play[x].replace(" > /dev/null 2>&1 && echo $?", ""), "終止執行"))
        break
  else:
    return 0

# 批量: 傳入主機組不同主機執行不同劇本
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("\n\n")
  print("-" * 130)
  print("執行清單")
  print("-" * 130)
  for each in success:
    print("成功主機: {}".format(each))
  for each in error:
    print("失敗主機: {}".format(each))

# 運行測試
def PlayBookRun():
  playbook = \
    {
      "Linux\n":
        [
          "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這幾臺機器執行playbook劇本
  RunPlayBook(addr_list,playbook)

過程化實現文件上傳下載: 文件傳輸功能 PUT上傳 GET下載

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

# 批量將本地文件 source 上傳到目標 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("接收主機 \t\t 登錄用戶 \t 登錄密碼 \t 登錄端口 \t 本地文件 \t\t 傳輸到 \t\t\t 傳輸狀態")
    print("-" * 130)

    for each in range(0,len(base)):
      # 先判斷主機是否可通信
      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 未連通\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 傳輸成功\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 傳輸失敗\033[0m".format(
          base[each][1], base[each][2], base[each][3], base[each][4], source, target))

# 批量將目標文件拉取到本地特定目錄(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("發送主機 \t\t 登錄用戶 \t 登錄密碼 \t 登錄端口 \t\t 遠程文件 \t\t 拉取到 \t\t\t 傳輸狀態")
    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 未連通\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 傳輸成功\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 傳輸失敗\033[0m".format(
          base[each][1], base[each][2], base[each][3], base[each][4], source, target))

另一種命令執行方法:

import paramiko

ssh = 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

# 通過獲取主機Ping狀態
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","機器系統","設備SN","機房位置","存活狀態","主機作用"))
  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],"異常",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("---> 巡檢地址: {0:10} \t 登錄用戶: {1:7} \t 登錄密碼: {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("進程: {0:18} \t PID: {1:10} \t 狀態: {2}".format(proc[process], int(ref),"√"))
        else:
          print("進程: {0:18} \t PID:{1:10} \t 狀態: {2}".format(proc[process], 0,"×"))
      except Exception:
        print("進程: {0:18} \t PID:{1:10} \t 狀態: {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("---> 巡檢地址: {0:10} \t 登錄系統: {1:7} \t 登錄賬號: {2:10} 登錄密碼: {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()

# 運行命令
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("---> 巡檢地址: {0:10} \t 登錄系統: {1:7} \t 登錄賬號: {2:10} 登錄密碼: {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()

面向對象的封裝方法: 使用面向對象封裝,可極大的提高復用性。

import paramiko

class 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()
第二次封裝完善。

import paramiko,os,json,re

class 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()

  # 獲取文件大小
  def GetFileSize(self,file_path):
    ref = self.BatchCMD("du -s " + file_path + " | awk '{print $1}'")
    return ref.replace("\n","")
  # 判斷文件是否存在
  def IsFile(self,file_path):
    return self.BatchCMD("[ -e {} ] && echo 'True' || echo 'False'".format(file_path))

通過Eval函數解析執行: 自定義語法規則與函數,通過Eval函數實現解析執行. 沒寫完,僅供參考。

import json,os,sys,math
import argparse,time,re
import paramiko

ssh = 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


# ------------------------------------------------------------------------
# 內置解析方法

def GetDisk(x):
  return str(x)

def GetCPULoad():
  return str(10)

# 句式解析器,解析句子並執行
def judge(string):
  # 如果匹配到IF則執行判斷條件解析
  if re.findall(r'IF{ (.*?) }', string, re.M) != []:
    # 則繼續提取出他的表達式
    ptr = re.compile(r'IF[{] (.*?) [}]',re.S)
    subject = re.findall(ptr,string)[0]
    subject_list = subject.split(" ")
    # 拼接語句並執行
    sentence = eval(subject_list[0]) + subject_list[1] + subject_list[2]
    # 組合後執行,返回結果
    if eval(sentence):
      return "IF"
    else:
      return False

  # 如果匹配到put則執行上傳解析
  elif re.findall(r'PUT{ (.*?) }', string, re.M) != []:
    print("put")
  return False

# 獲取特定目錄下所有的劇本
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("劇本名稱","應用平臺","應用端口","執行主機數","命令條數"))
  print("-" * 90)
  for switch in all_files:
    # 首先判斷文件結尾是否為Json
    if( switch.endswith(".json") == True):
      all_switch_dir = rootdir + switch
      try:
        # 判斷文件內部是否符合JSON規范
        with open(all_switch_dir , "r" ,encoding="utf-8") as read_file:
          # 判斷是否存在指定字段來識別規范
          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} \t\t {3:5} \t\t {4:5}".
               format(switch,load.get("framework"),load.get("default_port"),run_addr_count,command_count))
      except ValueError:
        pass

# 指定一個劇本並運行
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
      # 尋找到需要加載的劇本地址
      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")
          # 循環每個主機任務
          for each in address_list:
            # 得到劇本內容
            task_sequence = data.get("task_sequence")
            default_port = data.get("default_port")
            print("-" * 90)
            print("地址: {0:15} 用戶名: {1:10} 密碼: {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")

定義劇本規范如下。

{
 "framework": "Centos",
 "version": "7.0",
 "address_list":
 [
  ["192.168.191.3","root","1233"]
 ],
 "default_port": "22",
 "task_sequence":
 [
  ["ifconfig"],
  ["IF{ GetLastCmdFlag() == True }","uname"]
 ]
}

詞法分析: 詞法分析解析劇本內容。

# 獲取特定目錄下所有的劇本
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("劇本名稱","應用平臺","應用端口","執行主機數","命令條數"))
  print("-" * 90)
  for switch in all_files:
    # 首先判斷文件結尾是否為Json
    if( switch.endswith(".json") == True):
      all_switch_dir = rootdir + switch
      try:
        # 判斷文件內部是否符合JSON規范
        with open(all_switch_dir , "r" ,encoding="utf-8") as read_file:
          # 判斷是否存在指定字段來識別規范
          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} \t\t {3:5} \t\t {4:5}".
               format(switch,load.get("framework"),load.get("default_port"),run_addr_count,command_count))
      except ValueError:
        pass

# 句式解析器,解析句子並執行
def judge(string):
  # 如果匹配到IF則執行判斷條件解析
  if re.findall(r'IF{ (.*?) }', string, re.M) != []:
    # 則繼續提取出他的表達式
    ptr = re.compile(r'IF[{] (.*?) [}]',re.S)
    subject = re.findall(ptr,string)[0]
    subject_list = subject.split(" ")

    # 公開接口,執行命令
    ssh = MySSH("192.168.191.3","root","1233","22")

    # 組合命令並執行
    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則執行上傳解析
  elif re.findall(r'PUT{ (.*?) }', string, re.M) != []:
    print("put")
  return False

# 指定一個劇本並運行
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
      # 尋找到需要加載的劇本地址
      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")
          # 循環每個主機任務
          for each in address_list:
            # 得到劇本內容
            task_sequence = data.get("task_sequence")
            default_port = data.get("default_port")
            print("-" * 90)
            print("地址: {0:15} 用戶名: {1:10} 密碼: {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類最終封裝: 通過面向對象對其進行封裝,實現瞭查詢CPU,負載,內存利用率,磁盤容量,等通用數據的獲取。

import paramiko, math,json

class 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,遠程模塊
  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
  # 執行非交互命令
  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
  # 將遠程文件下載到本地
  def GetRemoteFile(self, remote_path, local_path):
    try:
      self.sftp_obj.get(remote_path, local_path)
      return True
    except Exception:
      return False
  # 將本地文件上傳到遠程
  def PutLocalFile(self, localpath, remotepath):
    try:
      self.sftp_obj.put(localpath, remotepath)
      return True
    except Exception:
      return False
  # 關閉接口
  def CloseSSH(self):
    try:
      self.sftp_obj.close()
      self.ssh_obj.close()
    except Exception:
      pass
  # 獲取文件大小
  def GetFileSize(self, file_path):
    ref = self.BatchCMD("du -s " + file_path + " | awk '{print $1}'")
    return ref.replace("\n", "")
  # 判斷文件是否存在
  def IsFile(self, file_path):
    return self.BatchCMD("[ -e {} ] && echo 'True' || echo 'False'".format(file_path))
  # 獲取系統型號
  def GetSystemVersion(self):
    return self.BatchCMD("uname")
  # 檢測目標主機存活狀態
  def GetPing(self):
    try:
      if self.GetSystemVersion() != None:
        return True
      else:
        return False
    except Exception:
      return False
  # 獲取文件列表,並得到大小
  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_size
        ref_list.append(dict)
      return ref_list
    except Exception:
      return False
  # 將遠程文件全部打包後拉取到本地
  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
  # 獲取磁盤空間並返回字典
  def GetAllDiskSpace(self):
    ref_dict = {}
    cmd_dict = {"Linux\n": "df | grep -v 'Filesystem' | awk '{print $5 \":\" $6}'",
          "AIX\n": "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):
          # 根據不同版本選擇不同的命令
          os_ref = self.BatchCMD(run_cmd)
          ref_list = os_ref.split("\n")
          # 循環將其轉換為字典
          for each in ref_list:
            # 判斷最後是否為空,過濾最後一項
            if each != "":
              ref_dict[str(each.split(":")[1])] = str(each.split(":")[0])
      return ref_dict
    except Exception:
      return False
  # 獲取系統內存利用率
  def GetAllMemSpace(self):
    cmd_dict = {"Linux\n": "cat /proc/meminfo | head -n 2 | awk '{print $2}' | xargs | awk '{print $1 \":\" $2}'",
          "AIX\n": "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):
          # 根據不同版本選擇不同的命令
          os_ref = self.BatchCMD(run_cmd)
          # 首先現將KB轉化為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)

          # 計算占用空間百分比
          percentage = 100 - int(mem_free / int(mem_total / 100))
          # 拼接字典數據
          return {"Total": str(mem_total), "Free": str(mem_free), "Percentage": str(percentage)}
    except Exception:
      return False
  # 獲取系統進程信息,並返回字典格式
  def GetAllProcessSpace(self):
    ref_dict = {}
    cmd_dict = {"Linux\n": "ps aux | grep -v 'USER' | awk '{print $2 \":\" $11}' | uniq",
          "AIX\n": "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
  # 獲取CPU利用率
  def GetCPUPercentage(self):
    ref_dict = {}
    cmd_dict = {"Linux\n": "vmstat | tail -n 1 | awk '{print $13 \":\" $14 \":\" $15}'",
          "AIX\n": "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
  # 獲取機器的負載情況
  def GetLoadAVG(self):
    ref_dict = {}
    cmd_dict = {"Linux\n": "uptime | awk '{print $10 \":\" $11 \":\" $12}'",
          "AIX\n": "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
  # 修改當前用戶密碼
  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

# 定義超類,集成基類MySSH
class SuperSSH(MySSH):
  def __init__(self,address, username, password, default_port):
    super(SuperSSH, self).__init__(address, username, password, default_port)

我們繼續為上面的代碼加上命令行,讓其可以直接使用,這裡需要遵循一定的格式規范,我們使用JSON解析數據,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"],
  ]
}

接著是主程序代碼,如下所示.

# -*- coding: utf-8 -*-
from MySSH import MySSH
import json,os,sys,argparse

class 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 v
        except Exception:
          return None
    return None

if __name__ == "__main__":
  ptr = InitJson("database.json")
  parser = argparse.ArgumentParser()

  parser.add_argument("-G","--group",dest="group",help="指定主機組")
  parser.add_argument("-C","--cmd",dest="cmd",help="指定CMD命令")
  parser.add_argument("--get",dest="get",help="指定獲取數據類型<ping>")
  parser.add_argument("--dst", dest="dst_file",help="目標位置")
  parser.add_argument("--src",dest="src_file",help="原文件路徑")
  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("主機: {0:15} \t 賬號: {1:10} \t 密碼: {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("\n\n","-" * 140,
       "\n 執行報告 \n",
       "-" * 140,
       "\n失敗主機: {}\n".format(error),
       "-" * 140)

  # 批量獲取主機其他數據 --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)
        # 判斷是否為ping
        if ssh.Init() != False:
          if args.get == "ping":
            ret = ssh.GetPing()
            if ret == True:
              print("[*] 主機: {} 存活中.".format(each[0]))

          # 收集磁盤數據
          elif args.get == "disk":
            print("-" * 140)
            print("主機: {0:15} \t 賬號: {1:10} \t 密碼: {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("磁盤分區: {0:30} \t 磁盤占用: {1:5} -> [警告]".format(k, v))
                  continue
                if space_ret >= 50:
                  print("磁盤分區: {0:30} \t 磁盤占用: {1:5} -> [警惕]".format(k, v))
                  continue
                else:
                  print("磁盤分區: {0:30} \t 磁盤占用: {1:5}".format(k, v))
                  continue
            print()
        else:
          error.append(each[0])
          ssh.CloseSSH()
      print("\n\n", "-" * 140,
         "\n 執行報告 \n",
         "-" * 140,
         "\n失敗主機: {}\n".format(error),
         "-" * 140)

  # 實現文件上傳過程 --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("主機: {} \t 本地文件: {} \t ---> 傳到: {}".format(each[0], args.src_file,args.dst_file))
      else:
        error.append(each[0])
        ssh.CloseSSH()
    print("\n\n", "-" * 140,
       "\n 執行報告 \n",
       "-" * 140,
       "\n失敗主機: {}\n".format(error),
       "-" * 140)

簡單的使用命令:

遠程CMD: python main.py –group=centos –cmd=”free -h | grep -v ‘total'”

判斷存活: python main.py –group=centos –get=”ping”

拉取磁盤:python main.py –group=suse –get=”disk”

批量上傳文件: python main.py –group=suse –src=”./aaa” –dst=”/tmp/bbb.txt”

由於我的設備少,所以沒開多線程,擔心開多線程對目標造成過大壓力,也沒啥必要。

番外: 另外我研究瞭一個主機分組的小工具,加上命令執行代碼量才800行,實現瞭一個分組數據庫,在這裡記下使用方法。

默認運行進入一個交互式shell環境。

Init = 初始化json文件,ShowHostList=顯示所有主機,ShowGroup=顯示所有組,ShowAllGroup=顯示所有主機包括組。

添加修改與刪除記錄,命令如下。

添加刪除主機組。

通過UUID向主機組中添加或刪除主機記錄。

測試主機組連通性。

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