基于flask的告警监控——fortidbbackup
#发送告警邮件cat check_backup.sh
#!/bin/bash
. ~/.bash_profile
BASEDIR=`dirname $0`
cd $BASEDIR
parse_line(){
EMAIL="xxxxxx@126.com;xxxxxx@126.com"
}
parse_line
python tidb_backup_check.py >check_backup_status.html 2>/dev/null
mutt -e "set content_type="text/html"" -e "set from="tidb@admin.com"" -e "set realname="TiDB_Admin"" -s "TiDB Backup Status Check" "xxxx@126.com";${EMAIL}" <check_backup_status.html
#获取具体的告警内容
cat tidb_backup_check.py
#!/usr/bin/env python
import psycopg2 as pg
from datetime import datetime, date, time
import json
import prettytable as pt
from prettytable import PrettyTable
import pandas as pd
from flask import Flask
from flask import render_template
app = Flask("__name__)")
@app.route("/")
def getinfo(sql):
try:
pg_conn=pg.connect(database="db", user="tidb", password="123456", host="192.168.1.1", port="4000")
pg_cur=pg_conn.cursor()
pg_cur.execute(sql)
rows = pg_cur.fetchall()
pg_conn.commit()
pg_conn.close()
return rows
except Exception as e:
print(e)
return 0
if __name__ == "__main__":
html_string = """
<html>
<head><title>TiDB Backup Status Check</title>
<style type="text/css">
{styles}
</style>
<div class="container">
<div class="page-header">
<h1 class="tbsc">TiDB Backup Status Check</h1>
</div>
</div>
<div>
<p>
<h3 class="tbsc">说明:</h3>
<li class="tbsc">同一个实例通过tidb节点进行检查，包括相应节点的日志信息</li>
<li class="tbsc">以下备份信息主要是检查最近一天的备份，如果备份策略是周末全备需要单独查验</li>
<li class="tbsc">如果同一个实体中所有tidb组件没有备份日期与大小，请检查备份job是否正常,zabbix agent 是否有安装</li>
<li class="tbsc">如果备份数据库binglog 没有大小，请检查是否有开启归档，归档是否正常</li>
</p>
</div>
<body >
{table}
</body>
</html>
"""
style="""
h1.tbsc {
font: bold 20pt Arial, Helvetica, Geneva, sans-serif;
color: #336699;
background-color: White;
border-bottom: 1px solid #2e5c89;
margin-top: 0pt;
margin-bottom: 0pt;
padding: 0px 0px 0px 0px;
text-align: center;
}
h3.tbsc {
font: bold 14pt Arial, Helvetica, Geneva, sans-serif;
color: #336699;
background-color: White;
margin-top: 0pt;
margin-bottom: 0pt;
padding: 0px 0px 0px 0px;
text-align: left;
}
li.tbsc {font: 12pt Arial,Helvetica,Geneva,sans-serif; color:E32636; background:White;}
Table {
border: 1px solid #1C6EA4;
background-color: #EEEEEE;
width: 80%;
text-align: center;
border-collapse: collapse;
}
Table td, Table th {
border: 1px solid #AAAAAA;
padding: 3px 2px;
}
Table tbody td {
font-size: 13px;
}
Table tr:nth-child(even) {
background: #D0E4F5;
}
Table thead {
background: #1C6EA4;
background: -moz-linear-gradient(top, #5592bb 0%, #327cad 66%, #1C6EA4 100%);
background: -webkit-linear-gradient(top, #5592bb 0%, #327cad 66%, #1C6EA4 100%);
background: linear-gradient(to bottom, #5592bb 0%, #327cad 66%, #1C6EA4 100%);
border-bottom: 2px solid #444444;
}
Table thead th {
font-size: 15px;
font-weight: bold;
color: #FFFFFF;
text-align: center;
border-left: 2px solid #D0E4F5;
}
Table thead th:first-child {
border-left: none;
}
Table tfoot {
font-size: 14px;
font-weight: bold;
color: #FFFFFF;
background: #D0E4F5;
background: -moz-linear-gradient(top, #dcebf7 0%, #d4e6f6 66%, #D0E4F5 100%);
background: -webkit-linear-gradient(top, #dcebf7 0%, #d4e6f6 66%, #D0E4F5 100%);
background: linear-gradient(to bottom, #dcebf7 0%, #d4e6f6 66%, #D0E4F5 100%);
border-top: 2px solid #444444;
}
Table tfoot td {
font-size: 14px;
}
tr:hover { background-color: #ffff99;}
"""
sql_getitem = """ select i.itemid --,i."name",i.key_,h.host,h.hostid,h."name"
from items i inner join public.hosts h on i.hostid=h.hostid
where i."name"="tidb check backup status" and i.itemid!="3877749" """
sql_getInstance = """
select * from (
SELECT lower ("entityName") as instancename, "chineseDesc", "oprDba", case environment
when "DBE:PRD" then "生产"
when "DBE:DRC" then "同城"
else "远城"
end env, "instanceName", "hostIp1", "hostName1",
substr("instanceName",length("entityName")+2,length("instanceName")) dbtype
FROM tidb_info a where lower(a."databaseType")="tidb" and a.status="DBS:ON") b
where b.dbtype like "D%" order by b."instancename" ;"""
"""select i.itemid,i."name",i.key_,to_timestamp(hl.clock) ck,h.host,h.hostid,h."name" ,hl.value from items i
inner join hosts h on i.hostid=h.hostid
inner join history_log hl on i.itemid=hl.itemid where i."name"="tidb check backup status"
--and hl.value="/usr/bin/env: python3: No such file or directory"
and hl.clock >=extract(epoch from current_date)"""
rows_item=getinfo(sql_getitem)
rows_instance=getinfo(sql_getInstance)
tidbInstance = []
backrest = []
if not (rows_instance == 0):
# print(type(rows_instance))
dt = pd.DataFrame(rows_instance)
dt = dt.rename(
columns={0: "instance", 1: "Chinese_name", 2: "DA", 3: "ENV", 4: "sub_instance", 5: "IP", 6: "hostname",
7: "组件"})
if not (rows_item == 0):
item = [x for i in rows_item for x in i]
for i in item:
sql_getbackup_status = """select value FROM history_log ht where itemid={}""".format(i) +
"""and ht.value!="/usr/bin/env: python3: No such file or directory" group by value ,clock order by clock desc limit 1"""
res = getinfo(sql_getbackup_status)
if (len(res) > 0 and res != 0):
h = [y for x in res for y in x]
for x in h:
t = json.loads(x)
for m in t:
if not (m["instance"] == """[]""" or len(m["size"]) == 0):
backrest.append(m)
# print(backrest)
dt_backup = pd.DataFrame(backrest)
#dt_backup=dt_backup.rename(columns={0:"检查日期",1:"备份开始时间",2:"备份结束时间",3:"大小",4:"binlog 大小"})
# print(dt_backup)
backinfo = pd.merge(dt, dt_backup, how="left", on=["hostname", "instance"])
backinfo.rename(
columns={"instance": "实体名", "Chinese_name": "实体中文名", "DA": "主管DA", "ENV": "环境", "sub_instance": "实例名",
"hostname": "主机名", "check day": "检查日期", "backup begin time": "备份开始时间", "backup end time": "备份结束时间",
"size": "备份大小", "binglog size": "日志大小"}, inplace=True)
backinfo_html=backinfo.to_html()
# print(backinfo)
html_string = html_string.format(table=backinfo_html,styles=style)
#html_string=html_string.format(styles=style)
print(html_string)
# with app.app_context():
# render_template("view.html", tables=[backinfo.to_html()]
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