Pulls in the data and prints out some useful junk - gotta add a couple of…

Pulls in the data and prints out some useful junk - gotta add a couple of metrics to the tmp file so that it can handle situations where the snmp counter rolls or is reset

check_snmp_usage.py

@@ -29,6 +29,7 @@ import sys
 import getopt
 import re
 import subprocess
+import datetime
 
 host = ''
 communityString = 'public'
@@ -100,28 +101,79 @@ if not 'index' in locals():
 
 # Now let's grab our counters and the date of the remote system
 
+current = {}
 getDateTimeCmd = [snmpget, '-v2c', '-c', communityString, host, OIDDateTime]
 sp = subprocess.Popen(getDateTimeCmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
 stdout, stderr = sp.communicate()
 dateTime = stdout.rstrip().split()[-1]
 date = dateTime.split(',')[0]
 time = dateTime.split(',')[1]
-year = date.split('-')[0]
-month = date.split('-')[1]
-day = date.split('-')[2]
-hour = time.split(':')[0]
-minute = time.split(':')[1]
-second = time.split(':')[2]
+current['year'] = date.split('-')[0]
+current['month'] = date.split('-')[1]
+current['day'] = date.split('-')[2]
+current['hour'] = time.split(':')[0]
+current['minute'] = time.split(':')[1]
+current['second'] = time.split(':')[2].split('.')[0]
 
 getInBytesCmd = [snmpget, '-v2c', '-c', communityString, host, OIDIfInBytes + index]
 getOutBytesCmd = [snmpget, '-v2c', '-c', communityString, host, OIDIfOutBytes + index]
 
 sp = subprocess.Popen(getInBytesCmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
 stdout, stderr = sp.communicate()
-inBytes = stdout.rstrip().split()[-1]
+current['inbytes'] = stdout.rstrip().split()[-1]
 
 sp = subprocess.Popen(getOutBytesCmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
 stdout, stderr = sp.communicate()
-outBytes = stdout.rstrip().split()[-1]
+current['outbytes'] = stdout.rstrip().split()[-1]
+
+# We have all the data we'll need to recourd the new line in our tmp file
+
+outLine = current['year'] + '|' + current['month'] + '|' + current['day'] + '|' + current['hour'] + '|' + current['minute'] + '|' + current['second'] + '|' + current['inbytes'] + '|' + current['outbytes']
 
 # Time to see if we have a temp file in place or not and read it if we do
+
+tmpFile = '/tmp/check_snmp_usage_' + host + '_' + interface + '.tmp'
+
+
+if os.path.isfile(tmpFile):
+	f = open(tmpFile, 'r')
+	fileLines = f.readlines()
+	f.close
+	lastList = fileLines[-1].rstrip().split('|')
+	last = {}
+	last['year'] = lastList[0]
+	last['month'] = lastList[1]
+	last['day'] = lastList[2]
+	last['hour'] = lastList[3]
+	last['minute'] = lastList[4]
+	last['second'] = lastList[5]
+	last['inbytes'] = lastList[6]
+	last['outbytes'] = lastList[7]
+else:
+	f = open(tmpFile, 'a')
+	f.write(outLine)
+	f.close()
+	print('First run - no status update until the next run')
+	sys.exit(3)
+
+
+# Get all of the differences
+
+format = '%Y %m %d %H %M %S'
+lastDateStr = last['year'] + ' ' + last['month'] + ' ' + last['day'] + ' ' + last['hour'] + ' ' + last['minute'] + ' ' + last['second']
+currentDateStr = current['year'] + ' ' + current['month'] + ' ' + current['day'] + ' ' + current['hour'] + ' ' + current['minute'] + ' ' + current['second']
+lastDateTime = datetime.datetime.strptime(lastDateStr, format)
+currentDateTime = datetime.datetime.strptime(currentDateStr, format)
+
+timeDifference = currentDateTime - lastDateTime
+inBytesDifference = int(current['inbytes']) - int(last['inbytes'])
+outBytesDifference = int(current['outbytes']) - int(last['outbytes'])
+print(timeDifference.total_seconds())
+print(inBytesDifference)
+print(outBytesDifference)
+
+inBytesPerSec = int(inBytesDifference) / int(timeDifference.total_seconds())
+outBytesPerSec = int(outBytesDifference) / int(timeDifference.total_seconds())
+
+print(str(inBytesPerSec) + ' bytes in per second')
+print(str(outBytesPerSec) + ' bytes out per second')