下面是代碼,歡迎討論。
#!/usr/bin/evn python
#*-* encoding:utf-8 -*-
#Filename:ssh.py
#自動登錄服務器,實現服務器巡檢工作
import os
import sys
import paramiko
#設置一下字符編碼
reload(sys)
sys.setdefaultencoding('utf-8')
#使用public key的登錄服務器,將巡檢結果輸出到特定的目錄中
def login_by_pubkey(serverHost,serverPort,userName,keyFile):
known_host = "~/.ssh/known_hosts"
ssh = paramiko.SSHClient();
ssh.load_system_host_keys(known_host)
#設置默認接收主機信任的策略,但是可能報告“不信任主機的”異常
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
print 'Connectting host %s......' % serverHost
ssh.connect(serverHost,serverPort,username = userName,key_filename = keyFile)
print 'Connect host %s sucess' % serverHost
fname = '~/xunjian/result_%s' % serverHost
f = file(fname,'w')
#執行系統命令,獲取輸出
stdin, stdout, stderr = ssh.exec_command('df -h')
#print stdout.readlines()
f.write('step1:check disk:\n')
for line in stdout.readlines():
if len(line) > 0:
print line
f.write(line)
vmstat_stdin,vmstat_stdout,vmstat_stderr = ssh.exec_command('vmstat 2 10')
f.write('step2:check system:\n')
for line in vmstat_stdout.readlines():
if len(line) > 0:
f.write(line)
process_stdin,process_stdout,process_stderr = ssh.exec_command('ps -aux | grep java | top 10')
f.write('step3:check process:\n')
for line in process_stdout.readlines():
if len(line) > 0:
f.write(line)
#關閉文件和ssh連接
f.close()
ssh.close()
print 'say bye to host %s' % serverHost
#生成截圖文件(採用Java實現,需要調用本地的Java文件,依賴了commons-io.jar)
print 'generate image file of %s' % serverHost
try:
java_cmd = '/usr/bin/env java -cp commons-io-2.1.jar:img.jar com.*.*.*.CeateCheckPic %s' % fname
os.system(java_cmd)
except Exception, e:
print 'error when generate image file of %s : %s' % (serverHost,e)
finally:
print '===generate image file of %s over===' % serverHost
def login_by_prikey():
pass
if __name__ == '__main__':
#如果有多個服務器,這個列表中需要配置多條這種配置,實際使用中請將 ip,port,username,public key path替換下面的變量
ips = ['#ip#,#port#,#user#,#pubkey_path#']
for ip in ips:
host,port,user,path = ip.split(',')
print '==========start %s============' % host
login_by_pubkey(host,int(port),user,path)
print '>>>>>>>>>>end %s<<<<<<<<<<<<<<' % host
附件是生成巡檢圖片的一個簡單的jar,大家可以參考一下。