Python Script monitoring Docker container

The example of this article is to share the Python script monitoring Docker container method, for your reference, the specific content is as follows

Scripting Features:

1. Monitor CPU Usage

2. Monitor Memory usage Status

3. Monitor network traffic

Specific code:

#!/usr/bin/env python#--*--coding:utf-8--*--import sysimport tabimport reimport osimport timefrom Docker import Clienti Mport commandskeys_container_stats_list = [' blkio_stats ', ' precpu_stats ', ' Network ', ' read ', ' memory_stats ', ' cpu_ ' Stats ']merit_list=[' usage ', ' limit ', ' mem_use_percent ', ' total_cpu_usage ', ' system_cpu_usage ', ' cpu_usage_percent ', ' Rx_bytes ', ' tx_bytes ']returnval = nonedef start (container_name): Global container_stats conn=client (base_url= ' unix:/ /run/docker.sock ', version= ' 1.19 ') generator=conn.stats (container_name) Try:container_stats=eval (Generator.next () ) except nameerror,error_msg:pass# print error_msg container_stats=eval (Generator.next ()) Finally:conn.clo Se () def monitor_docker (Monitor_item,merit): if merit = = ' Mem_use_percent ': Start (container_name) Mem_usage = Contai ner_stats[' memory_stats ' [' usage '] mem_limit = container_stats[' memory_stats ' [' limit '] returnval = round (float (mem_ usage)/float (mem_limit), 2) print returnval Elif merit = = ' System_cpu_usage ': Start (container_name) First_result = container_stats[' cpu_stats ' [' System_cpu_usage ']  Start (container_name) Second_result = container_stats[' cpu_stats ' [' system_cpu_usage '] returnval = Second_result -First_result print returnval elif merit = = ' Total_cpu_usage ': Start (container_name) First_result = Container_ stats[' cpu_stats ' [' cpu_usage '] [' total_usage '] Start (container_name) Second_result = container_stats[' cpu_stats '] [ ' Cpu_usage ' [' total_usage '] returnval = second_result-first_result print returnval elif merit = = ' Cpu_usage_perce NT ': Start (container_name) system_use=container_stats[' cpu_stats ' [' system_cpu_usage '] total_use=container_stats[ ' Cpu_stats ' [' cpu_usage '] [' total_usage '] cpu_count=len (container_stats[' cpu_stats ' [' cpu_usage '] [' percpu_usage ') ]) ReturnVal = Round ((float (total_use)/float (system_use)) *cpu_count*100.0,2) print returnval elif merit = = ' Rx_byte S ': command= ' Docker exec-itApi1 ifconfig eth1 | grep "bytes" | awk ' {print $} ' | Awk-f ': ' {print $} ' Result_one = commands.getoutput (command) time.sleep (1) command= ' Docker exec-it API 1 Ifconfig eth1 | grep "bytes" | awk ' {print $} ' | Awk-f ': ' {print $} ' Result_second = commands.getoutput (command) ReturnVal = round ((int (result_second)-Int ( Result_one))/1024,2) print returnval elif merit = = ' tx_bytes ': command= ' docker exec-it api1 ifconfig eth1 | grep "bytes" | awk ' {print $6} ' | Awk-f ': ' {print $} ' Result_one = commands.getoutput (command) time.sleep (1) command= ' Docker exec-it API 1 Ifconfig eth1 | grep "bytes" | awk ' {print $6} ' | Awk-f ': ' {print $} ' Result_second = commands.getoutput (command) ReturnVal = round ((int (result_second)-Int ( Result_one))/1024,2) Print Returnvalif __name__ = = ' __main__ ': command= ' docker PS | awk ' {print $NF} ' |  Grep-v "NAMES" ' str=commands.getoutput (Command) container_counts_list=str.split (' \ n ')If sys.argv[1] not in Container_counts_list:print container_counts_list print "The container name you entered is wrong, please re-execute the script and enter the correct container name above." Sys.exit (1) else:container_name = sys.argv[1] If sys.argv[2] not in Keys_container_stats_list:print Keys_c      Ontainer_stats_list print ' The container monitoring item you entered is not in the monitoring range, please re-execute the script and enter the correct monitoring entry above. '        Sys.exit (1) else:monitor_item = sys.argv[2] If sys.argv[3] not in Merit_list:print merit_list      Print "The details of the container monitoring you have entered are not in the scope of monitoring, please re-execute the script and enter the correct detailed monitoring metrics above." Else:merit = sys.argv[3] Monitor_docker (Monitor_item,merit)

The above is the Python script to monitor the Docker container all the code, I hope that everyone's learning is helpful.

