python3 简单服务器监控，自动发送邮件

import smtplib
from email.mime.text import MIMEText
from email.mime.multipart import MIMEMultipart
import pymysql
import psutil
import os
import time

def mail(name,description,disk_send_info,cpu_send_info,mem_send_info):
    sender = 'mail_address'
    password = 'mail_password'
    reciver = 'xxx.xx@xx.com,xxx@xx.com' #可设置多人，用逗号分隔
    subject = 'xxx(监控项目名称):%s警告'%name+ time.strftime('%Y-%m-%d %H:%M:%S',time.localtime())

    msg = MIMEMultipart('mixed') #初始化  注意：标题和正文不能分别初始化
    msg['From'] = sender
    msg['To'] = reciver
    msg['Subject'] = subject
    msg.attach(MIMEText(str(description),'plain','utf-8'))
    msg.attach(MIMEText(str(disk_send_info),'plain','utf-8'))#添加正式，MIMEText切记不能忘记
    msg.attach(MIMEText(str(cpu_send_info),'plain','utf-8'))
    msg.attach(MIMEText(str(mem_send_info),'plain','utf-8'))

    smtp = smtplib.SMTP()
    smtp.connect('smtp.163.com')
    smtp.set_debuglevel(1)
    smtp.login(sender,password)
    smtp.sendmail(sender,reciver.split(','),msg.as_string())
    print('%s 发送成功'%subject)
    smtp.quit()

#获得硬盘的信息
def disk_info(disk_find):
    # disk =  psutil.disk_partitions()
    # for i in disk:
    #     disk_partition = i.device       #所有硬盘盘符
    #     disk_use = psutil.disk_usage(disk_partition)
    #     disk_utilization = disk_use.percent
    disk_use = psutil.disk_usage(disk_find)
    disk_utilization = str(disk_use.percent)
    disk_total = '%sG' %(round(disk_use.total/1024/1024/1024,2))
    disk_used =  '%sG' %(round(disk_use.used/1024/1024/1024,2))
    disk_free =  '%sG' %(round(disk_use.free/1024/1024/1024,2))
    disk_msg = {'总量':disk_total,
                '已使用':disk_used,
                '空闲':disk_free,
                '使用率':disk_utilization + '%'
                }
    return disk_msg

def cpu_info():
    cpu_idle = str(os.popen("top -n 1 | sed -n '3p' | awk '{print $8}'").read()).strip()
    cpu_used = str(100-float(cpu_idle)) + '%'
    cpu_msg  = {'已使用':cpu_used,
                '剩余':str(cpu_idle) + '%'}
    return  cpu_idle,cpu_msg

def memory_info():
    mem_free = str(os.popen("top -n 1 | sed -n '4p' | awk '{print $8}'").read()).strip()
    mem_buff = str(os.popen("top -n 1 | sed -n '4p' | awk '{print $10}'").read()).strip()
    mem_cached = str(os.popen("top -n 1 | sed -n '5p' | awk '{print $9}'").read()).strip()
    mem_total = round(int(str(os.popen("top -n 1 | sed -n '4p' | awk '{print $4}'").read()).strip())/1024/1024,0)
    mem_free_total = round((int(mem_free) + int(mem_buff) + int(mem_cached))/1024/1024,0)
    mem_free_ratio = str(round(int(mem_free_total)*100/int(mem_total),2))
    mem_msg = {
        '总量':str(mem_total) + 'G',
        '已使用':str(mem_total - mem_free_total) + 'G',
        '剩余':mem_free_ratio + '%'
    }
    return mem_free_ratio,mem_msg

def mysql_monitor(user,password,host,port):
    try:
        conn = pymysql.connect(host = host,port = port,user = user,passwd = password)
    except:
        return '主人，数据库无法正常连接了，请尽快处理！！！'
    conn.close()

def docker_monitor():

#disk_find = str(os.popen("df -hT | grep /data |awk 'NR==1{print}' | awk '{print $1}'").read()).strip()#读取第一行
disk_find = '/data'
while True:
    disk_info_msg = disk_info(disk_find)
    cpu_tup = cpu_info()
    cpu_idle = cpu_tup[0]
    cpu_msg = cpu_tup[1]
    mem_tup = memory_info()
    mem_free_ratio = mem_tup[0]
    mem_msg = mem_tup[1]
    mysql_info  = mysql_monitor('xxx(user)','xxxx(password)','192.168.1.230',3306)
    localtime = time.localtime()
    if str(localtime[3]) == '11':
        name = '正常'
        description = '主人，我乖乖的努力工作了一天哟，犒赏犒赏！！！'
        disk_send_info = '硬盘：' + str(disk_info_msg)
        cpu_send_info = 'CPU:' + str(cpu_msg)
        mem_send_info = '内存：' + str(mem_msg)
        print(disk_send_info)
        mail(name,description,disk_send_info,cpu_send_info,mem_send_info)
    if mysql_info:
        name = '数据库'
        description = mysql_info
        disk_send_info = '硬盘：' + str(disk_info_msg)
        cpu_send_info  = 'CPU:' + str(cpu_msg)
        mem_send_info  = '内存：' + str(mem_msg)
        mail(name,description,disk_send_info,cpu_send_info,mem_send_info)
    if int(float(disk_info_msg['使用率'][0:-1])) >= 80:
        os.popen('docker stop default-vidio')
        name = '硬盘'
        description = '主人，我吃胀了，请给我健胃消食片！！！！'
        disk_send_info = '硬盘：' + str(disk_info_msg)
        cpu_send_info  = 'CPU:' + str(cpu_msg)
        mem_send_info  = '内存：' + str(mem_msg)
        mail(name,description,disk_send_info,cpu_send_info,mem_send_info)
    #小数后面是.0,先转浮点数在转整数
    if  int(float(cpu_idle)) <= 20 :
        name = 'CPU'
        description = '主人，我大脑不够用了，快救救我！！！！'
        disk_send_info = '硬盘：' + str(disk_info_msg)
        cpu_send_info  = 'CPU:' + str(cpu_msg)
        mem_send_info  = '内存：' + str(mem_msg)
        mail(name, description, disk_send_info, cpu_send_info, mem_send_info)
    if int(float(mem_free_ratio)) <=20:
        name = '内存'
        description = '主人，我血液不畅通，快疏通疏通！！！！'
        disk_send_info = '硬盘：' + str(disk_info_msg)
        cpu_send_info = 'CPU:' + str(cpu_msg)
        mem_send_info = '内存：' + str(mem_msg)
        mail(name, description, disk_send_info, cpu_send_info, mem_send_info)
    time.sleep(3600)