zabbix-docker-info.py

#!/usr/bin/python

import sys
import os
import time

errorString="***NOT FOUND***"

def local_run_command(cmd,file):
    cmd = cmd + " | tee > " + file 
    if os.path.isfile(file) == False:
        os.system(cmd)
    else:
        (mode, ino, dev, nlink, uid, gid, size, atime, mtime, ctime) = os.stat(file)
        ticks=int(time.time())
        delta=ticks-mtime
        if (delta > 60):
            os.system(cmd)

    strings = open(file,"r").readlines()
    return strings

def findString(strings,term):
    found=-1
    ndx=0
    maxNdx=len(strings)
    while (found==-1) and (ndx<maxNdx):
        if term in strings[ndx]:
            found=ndx
        else:
            ndx+=1
    retval=errorString
    if found>=0:
        retval=strings[found]
    return retval

def getValue(string):
    pos=string.index(":")
    return string[pos+2:-1]


search_for=sys.argv[1]

cmd="docker info"
filename="/tmp/zabbix-docker-info.out"

strings = local_run_command(cmd,filename)

line=findString(strings,search_for)

if errorString in line:
    print search_for, " ", errorString
else:
    print getValue(line)