PYTHON通过跳板机巡检CENTOS的简单实现

实现的细节和引用的文件和以前博客记录的基本一致

https://shaka.blog.csdn.net/article/details/106927633

差别在于,这次是通过跳板机登陆获取的主机信息,只记录差异的部份

1.需要在跳板机相应的路径放置PYTHON的脚本resc.py

resc.py这个脚本中有引用的文件(pm.sh,diskpnum.sh)和以前的记录一样,不再重复列出

这个脚本接受一个参数,IP地址,django一端的服务器将通过SSH连接,并将参数传递给脚本执行

脚本将返回包含CPU,内存,磁盘信息的字典,因为不同主机的磁盘分区名称和数量的不一致性,带有磁盘信息的这个KEY的值,将是一个LIST

# -*- coding: utf-8 -*-
import os,sys
import paramiko
import time
import sys
reload(sys)
import os
import json
import multiprocessing
import signal
sys.setdefaultencoding('utf-8')

class TimeoutException(Exception):
    pass

def timeout_handler(signum, frame):
    raise TimeoutException("error")

def sshreinfos(ips):
    try:
        redict = {}
        paramiko.util.log_to_file("/yourreexecpath/paramiko.log")
        ssh = paramiko.SSHClient()
        ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
        pkey = paramiko.RSAKey.from_private_key_file("/home/user/.ssh/id_rsa")
        ssh.connect(hostname=ips, port=22, username='sshuser', pkey=pkey, timeout=5)
        t = ssh.get_transport()
        sftp=paramiko.SFTPClient.from_transport(t)
        sftp.put("/yourreexecpath/pm.sh","/tmp/pm.sh")
        sftp.put("/yourreexecpath/diskpnum.sh", "/tmp/diskpnum.sh")
        stdindcpu, stdoutcpu, stderrcpu = ssh.exec_command("top -bn1 | awk '/Cpu/{print $2,$3,$4}' | sed 's/[a-z]//g' | sed 's/ //g' | awk -F',' '{print $1+$2+$3}'")
        stdinmomeryall, stdoutmomeryall, stderrmomeryall = ssh.exec_command("free -m | awk '{print $2}' | awk 'NR==2{print}'")
        stdinmomery, stdoutmomery, stderrmomery = ssh.exec_command("sh /tmp/pm.sh")
        musep = (stdoutmomery.read()).replace("\n", "")
        cpuusep = (stdoutcpu.read()).replace("\n", "")
        memoryall = (stdoutmomeryall.read()).replace("\n", "")
        remark = "正常"
        try:
            b = round(float(musep))
            if int(b) > 80:
                remark = "评估是否扩内存"
        except Exception:
            remark = "NONE"

        redict["ips"] = ips
        redict["stdoutcpu"] = cpuusep
        redict["stdoutmomeryall"] = memoryall
        redict["musep"] = musep
        redict["remark"] = remark

        ymdhms = time.strftime('%Y%m%d%H%M%S', time.localtime(time.time()))
        stdindps, stdoutdps, stderrdps = ssh.exec_command("sh /tmp/diskpnum.sh " + ymdhms)
        dpnums = (stdoutdps).read().replace("\n", "")
        # print "1.5$"
        sftp.get("/tmp/diskusetmp" + ymdhms + ".txt", "/yourreexecpath/"+ips + "diskusetmp" + ymdhms + ".txt")
        diskinfos = open("/yourreexecpath/"+ips + "diskusetmp" + ymdhms + ".txt", 'r')
        disklists = []
        for lines in diskinfos:
            diskitems = {}
            cons = lines.split()
            diskitems["pt"] = cons[0].strip()
            diskitems["pttotal"] = cons[1].strip()
            diskitems["ptuse"] = cons[2].strip()
            disklists.append(diskitems)

        diskinfos.close()
        os.remove("/yourreexecpath/"+ips + "diskusetmp" + ymdhms + ".txt")
        redict["disklists"] = disklists
        ssh.close()
        return redict

    except:
        #print "error"
        return "error"

if __name__ == "__main__":
    if len(sys.argv) != 2:
        print "argv must be one"
        exit()
    ips = sys.argv[1]
    signal.signal(signal.SIGALRM, timeout_handler)
    signal.alarm(10) # set timeout to 10 seconds
    try:
        print sshreinfos(ips)
    except TimeoutException:
        print("error")

2.django一端的实现如下:

views.py对应的方法

用户点击不同的按钮选择是打印到WEB页面,还是打印到WEB页面+下载巡检报告的EXCEL表格

request.POST.has_key('chkaproc')或request.POST.has_key('chkonlylists')

def chkosinfos(request):
    if request.method=="POST":
        sqlstr = request.POST.get("sqlstr")
        filenames=""
        if request.POST.has_key('chkaproc'):
            try:
                import f5.sysinfos
                #filenames,relists=f5.sysinfos.receivewebsqlstr(sqlstr)
                relists=f5.sysinfos.remoterelists(sqlstr)
                filenames=f5.sysinfos.remotereexcel(relists)

            except Exception:
                return render(request,"exportsysinfos.html",{"login_err":"SYSINFOSFAILSTEP1"})

            return render(request,"exportsysinfos.html",{"login_err":"downloadlink:http://web服务器IP地址(存放文件用,程序将文件生成到指定的web虚拟目录):9999/"+filenames,"templist":relists})

        if request.POST.has_key('chkonlylists'):
            try:
                import f5.sysinfos
                relists=f5.sysinfos.remoterelists(sqlstr)

            except Exception:
                return render(request,"exportsysinfos.html",{"login_err":"SYSINFOSFAILSTEP1"})

            return render(request,"exportsysinfos.html",{"login_err":"OKAY"+filenames,"templist":relists})

    else:
        return render(request,"exportsysinfos.html",{"login_err":"no set"})

views.py引用的两个方法

remoterelists返回多个服务器巡检信息的list
remotereexcel将信息写入excel        

# -*- coding: utf-8 -*-
import os,sys
#sys.setdefaultencoding('utf8')
import paramiko
import xlsxwriter
import time
import sys
reload(sys)
sys.setdefaultencoding('utf-8')
from multiprocessing import Process,Manager
import multiprocessing
import os
import json

def sshconn():
    try:
        ssh = paramiko.SSHClient()
        ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
        #ssh.connect(hostname=self.f5ips, port=22, username=self.usernames, password=self.passwords)
        pkey = paramiko.RSAKey.from_private_key_file("D:\\idrsapath\\id_rsa")
        ssh.connect(hostname="serveripaddress", port=22, username='sshuser', pkey=pkey, timeout=5)#连接跳板机
        return ssh
    except Exception:
        return "error"

def remoterelists(sqlstrs):
    relists=[]
    iplists = []
    for line in sqlstrs.splitlines():
        con = line.split()
        names = con[0].strip()
        iplists.append(names)
    try:
        ssh=sshconn()
        for ips in iplists:
            print ips
            start_time = time.time()
            try:
                stdindcmd, stdoutcmd, stderrcmd=ssh.exec_command("/usr/bin/python /yourreexecpath/resc.py " + ips)
                ipsdict=stdoutcmd.read().replace("\n", "")#.decode('utf-8')
                end_time = time.time()
                if end_time - start_time > 10:
                    continue
                if ipsdict != "error":
                    relists.append(eval(ipsdict))
            except:
                print "error remotecmds"
                pass

        ssh.close()
        return relists
    except:
        print "connect sshserver error"
        return "error"


def remotereexcel(excellists):
    nowtime=time.strftime('%Y-%m-%d-%H-%M-%S',time.localtime(time.time()))+""
    filenames=nowtime+'systeminfo.xlsx'
    workbook1 = xlsxwriter.Workbook(".\\uploads\\"+filenames)
    worksheet = workbook1.add_worksheet()
    t1='服务器运行情况'
    format=workbook1.add_format()
    #worksheet.set_column(0,15,20)
    format.set_bold()
    yellow=workbook1.add_format({'align':'center','valign':'vcenter','font_size':22,'fg_color':'FFC1C1'})
    yellow.set_bold()
    # worksheet.merge_range(0,0,0,4,t1,yellow)
    worksheet.merge_range('A1:I1',t1,yellow)
    worksheet.set_row(0, 38)
    worksheet.set_column("A:A",20)
    worksheet.set_column("B:B",11)
    worksheet.set_column("C:C",12)
    worksheet.set_column("D:D",12)
    worksheet.set_column("E:E",20)

    title=[u'IP地址',u'CPU使用率%',u'内存总量',u'内存使用率%',u'巡检结果']
    format=workbook1.add_format()
    format=workbook1.add_format({'align':'center','valign':'vcenter'})
    format.set_bold()
    worksheet.write_row('A2',title,format)
    worksheet.set_row(1, 25)
    row=2
    try:
        for lines in excellists:
            try:
                worksheet.write(row,0,lines["ips"])
                worksheet.write(row,1,lines["stdoutcpu"])
                worksheet.write(row,2,lines["stdoutmomeryall"])
                worksheet.write(row,3,lines["musep"])
                remark="正常"
                try:
                    b=round(lines["musep"])
                    if int(b)>80:
                        remark="评估是否扩内存"
                except Exception:
                    remark="NONE"
                worksheet.write(row,4,remark)
                ymdhms=time.strftime('%Y%m%d%H%M%S',time.localtime(time.time()))
                n=5
                for diskpts in lines["disklists"]:
                    worksheet.set_column(n,n,20)
                    worksheet.write(row,n,"分区 "+diskpts["pt"].strip())
                    worksheet.set_column(n+1,n+1,20)
                    worksheet.write(row,n+1,"分区大小 "+diskpts["pttotal"].strip())
                    worksheet.set_column(n+2,n+2,20)
                    try:
                        dps=round(float(diskpts["ptuse"].strip()))
                        if int(dps)>80:
                            formatmred = workbook1.add_format({'bold': True, 'font_color': 'red'})
                            worksheet.write(row,n+2,"分区使用率 "+diskpts["ptuse"].strip(),formatmred)
                        else:
                            worksheet.write(row,n+2,"分区使用率 "+diskpts["ptuse"].strip())
                    except Exception:

                        worksheet.write(row,n+2,"分区使用率未获取数据")
                    n=n+3

            except Exception:
                print lines["ips"] +" error"
                worksheet.write(row,0,lines["ips"])
                worksheet.write(row,1,"none")
                worksheet.write(row,2,"none")
                worksheet.write(row,3,"none")
            row=row+1
    except Exception:
        print "cannot get datas"
        return "error"
    return filenames

3.HTML页面将用户需要巡检的IP列表粘贴到输入框,一行一个IP

html的写法,不怎么会写,只是先写个实现

	
	
	


	

		

		

			

                
主机巡检并导出信息
每行一个IP
			
		
		

			

				


					
 {% csrf_token %}
						

							

								

                                

							
						
                        



							CHK+EXCEL下载链接
						
                        


                        
							CHK不需要EXCEL,仅网页展示
						
                        
{{ login_err }}

{% for row in templist %}
IP:{{ row.ips }}

= 50 %}red{% else %}black{% endif %}">CPU使用率:{{ row.stdoutcpu }}

内存总量M:{{ row.stdoutmomeryall }}

= 90 %}red{% else %}black{% endif %}"> 内存使用率:{{ row.musep }} 
 

{% if 'disklists' in row %}
{% for diskrows in row.disklists %}
= 90 %}red{% else %}black{% endif %}"> 分区名称:{{ diskrows.pt }}  分区容量:{{ diskrows.pttotal }}  分区
{#                        
{{ login_err }}
#}