Capture ZABBIX performance monitoring chart with selenium

Summary

　　 As usual, let's start with an overview , Because the company has always used enterprise wechat , Just two days ago, all zabbix The alarm information of is received on wechat , I always feel that I'm not that good , Just think about adding a performance monitoring chart to the high-level alarm , In this way, we can probably understand the problem only by looking at the alarm information , No need to log in to zabbix Then look for information , Just because of this idea, I fell into the pit and stayed all day , Suddenly looking back, it's still too delicious , Next, post it for use Python Sign in zabbix And get the code of the corresponding alarm item monitoring diagram , After that, the complete code will be posted github in , Put the link on the simple book ~

　　 Realize crawling

　　 The following are the foundations ：

　　1、 Sending of alarm information message in , Can send zabbix Macro variable for Item ID Information .

　　2、 according to Item ID, You can use special URL carry Item ID Information acquisition corresponding monitoring screenshot .

　　 The following is the complete code to get the screenshot ：

　　#!/usr/bin/env python

　　# -*- coding:utf-8 -*-

　　# name image.py

　　from selenium import webdriver

　　import os

　　import sys

　　reload(sys)

　　sys.setdefaultencoding('utf-8')

　　def get_item_graph(itemid,flag,eventid):

　　 temp_name = "/tmp/"+eventid+".png"

　　 #save_screenshot Only... Can be saved png Format picture , Therefore, the file name definition needs to be in png ending

　　 driver = webdriver.PhantomJS("
/usr/local/zabbix-agent-ops/phantomjs-2.1.1/bin/phantomjs",service_log_path=os.path.devnull)

　　 # Use PhantomJS Can simulate browser Visit

　　 driver.get("http://127.0.0.1/zabbix/")

　　 driver.set_window_size(640,480)

　　 driver.find_element_by_id("name").send_keys("armo")

　　 driver.find_element_by_id("password").send_keys("123456")

　　 driver.find_element_by_id("enter").click()

　　 # Simulated access url, In the corresponding element element Enter the user name and password at click land

　　 if flag:

　　 driver.get("
http://127.0.0.1/zabbix/history.php?action=showgraph&fullscreen=1&itemids[]="+itemid)

　　 else:

　　 driver.get("
http://127.0.0.1/zabbix/history.php?action=showvalues&fullscreen=1&itemids[]="+itemid)

　　 #flag If it is 1, It corresponds to Item There are corresponding graph obtain ; If it is 0, Then get the value of the latest period

　　 driver.save_screenshot(temp_name)

　　 # Save web content as png picture

　　 driver.close()

　　 driver.quit()

　　if __name__ == "__main__":

　　 if len(sys.argv) > 1:

　　 itemid = sys.argv[1] # The first parameter passed by the script Item ID

　　 flag = sys.argv[2] # The second parameter passed by the script Flag, from zabbix database item and graph Corresponding table query of item Whether there is a corresponding graph, If so, pass 1 To script , No delivery 0

　　 eventid = sys.argv[3] # The third parameter passed by the script Alarm information Event ID, Used to name png picture

　　 get_item_graph(itemid,flag,eventid)

　　 # The above three parameters are pre call script analysis zabbix After sending the message, get , It will be updated later article in

　　 Problems encountered

　　1、 first session and cookies The preservation of , If you don't bring it after logging in cookies You cannot access the corresponding monitoring page , In the beginning, I chose requests modular , It feels relatively difficult , For me who just started, it's still selenium More appropriate , Don't have to consider session and cookies The problem of .

　　2、 Script in test The environment runs very well , The screenshot information is also very accurate , But there is something wrong with the online server .

　　 It is obvious that the online environment returns , The previous paragraph is actually garbled . Checked all environments , Finally, it was found that the problem was that the online server was not installed and zabbix On the problem of font adaptation , Very helpless , Actually, I have to consider the problem of fonts , Alibaba cloud's servers are really lazy .