Adding initial set of Nagios-side scripts

scripts/commands-django.cfg

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+# Don't forget to define _SCRIPTPATH on a per-host basis.
+#
+# Example: _SCRIPTPATH     /usr/local/django_nagios
+
+define command {
+    command_name check_django_cpu_load
+    command_line $_HOSTSCRIPTPATH$/scripts/django_check_cpu_load.py $ARG1$
+}
+
+define command {
+    command_name check_django_current_users
+    command_line $_HOSTSCRIPTPATH$/scripts/django_check_current_users.py $ARG1$
+}
+
+define command {
+    command_name check_django_disk_usage
+    command_line $_HOSTSCRIPTPATH$/scripts/django_check_disk_usage.py $ARG1$
+}
+
+define command {
+    command_name check_django_total_processes
+    command_line $_HOSTSCRIPTPATH$/scripts/django_check_total_processes.py $ARG1$
+}
+
+define command {
+    command_name check_django_zombie_processes
+    command_line $HOSTSCRIPTPATH$/scripts/django_check_zombie_processes.py $ARG1$
+}
+

scripts/django_check_cpu_load.py

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+#!/usr/bin/python
+
+import argparse
+import json
+import sys
+import urllib2
+
+CRITICAL_LOAD = 90
+WARNING_LOAD = 75
+
+parser = argparse.ArgumentParser(description='Checks CPU load on remote host.')
+
+parser.add_argument('url', help='URL of remote endpoint to check.')
+
+args = parser.parse_args()
+
+response = urllib2.urlopen(args.url)
+data = json.load(response)   
+
+if 'cpu_percentage' in data:
+    if data['cpu_percentage'] > CRITICAL_LOAD:
+        print 'CPU LOAD CRITICAL: ' + str(data['cpu_percentage']) + '%'
+        sys.exit(2)
+    elif data['cpu_percentage'] > WARNING_LOAD:
+        print 'CPU LOAD WARNING: ' + str(data['cpu_percentage']) + '%'
+        sys.exit(1)
+    else:
+        print 'CPU LOAD OK: ' + str(data['cpu_percentage']) + '%'
+        sys.exit(0)
+else:
+    print 'CPU LOAD UNKNOWN: ' + args.url
+    sys.exit(3)

scripts/django_check_current_users.py

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+#!/usr/bin/python
+
+import argparse
+import json
+import sys
+import urllib2
+
+CRITICAL = 5
+WARNING = 2
+
+parser = argparse.ArgumentParser(description='Checks logged in users on remote host.')
+
+parser.add_argument('url', help='URL of remote endpoint to check.')
+
+args = parser.parse_args()
+
+response = urllib2.urlopen(args.url)
+data = json.load(response)   
+
+if 'count' in data:
+    if data['count'] > CRITICAL:
+        print 'USERS CRITICAL: ' + str(data['count'])
+        sys.exit(2)
+    elif data['count'] > WARNING:
+        print 'USERS WARNING: ' + str(data['count'])
+        sys.exit(1)
+    else:
+        print 'USERS OK: ' + str(data['count'])
+        sys.exit(0)
+else:
+    print 'USERS UNKNOWN: ' + args.url
+    sys.exit(3)

scripts/django_check_disk_usage.py

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+#!/usr/bin/python
+
+import argparse
+import json
+import sys
+import urllib2
+
+CRITICAL = 90
+WARNING = 80
+
+parser = argparse.ArgumentParser(description='Checks disk usage on remote host.')
+
+parser.add_argument('url', help='URL of remote endpoint.')
+
+args = parser.parse_args()
+
+response = urllib2.urlopen(args.url)
+data = json.load(response)   
+
+max_percentage = 0
+max_device = None
+
+for device, percentage in data.iteritems():
+    if percentage > max_percentage:
+        max_percentage = percentage
+        max_device = device
+
+if max_device is None:
+    print 'DISK UNKNOWN: ' + args.url
+    sys.exit(3)
+elif max_percentage >= CRITICAL:
+    print 'DISK CRITICAL: ' + max_device + ', ' + str(max_percentage) + '%'
+    sys.exit(2)
+elif max_percentage >= WARNING:
+    print 'DISK CRITICAL: ' + max_device + ', ' + str(max_percentage) + '%'
+    sys.exit(2)
+else:
+    print 'DISK OK: ' + max_device + ', ' + str(max_percentage) + '%'
+    sys.exit(0)

scripts/django_check_total_processes.py

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+#!/usr/bin/python
+
+import argparse
+import json
+import sys
+import urllib2
+
+CRITICAL = 200
+WARNING = 150
+
+parser = argparse.ArgumentParser(description='Checks number of running processes on remote host.')
+
+parser.add_argument('url', help='URL of remote endpoint.')
+
+args = parser.parse_args()
+
+response = urllib2.urlopen(args.url)
+data = json.load(response)   
+
+if 'count' in data:
+    if data['count'] > CRITICAL:
+        print 'PROCS CRITICAL: ' + str(data['count'])
+        sys.exit(2)
+    elif data['count'] > WARNING:
+        print 'PROCS WARNING: ' + str(data['count'])
+        sys.exit(1)
+    else:
+        print 'PROCS OK: ' + str(data['count'])
+        sys.exit(0)
+else:
+    print 'PROCS UNKNOWN: ' + args.url
+    sys.exit(3)

scripts/django_check_zombie_processes.py

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+#!/usr/bin/python
+
+import argparse
+import json
+import sys
+import urllib2
+
+CRITICAL = 5
+WARNING = 1
+
+parser = argparse.ArgumentParser(description='Checks number of zombie processes on remote host.')
+
+parser.add_argument('url', help='URL of remote endpoint.')
+
+args = parser.parse_args()
+
+response = urllib2.urlopen(args.url)
+data = json.load(response)   
+
+if 'count' in data:
+    if data['count'] > CRITICAL:
+        print 'PROCS CRITICAL: ' + str(data['count'])
+        sys.exit(2)
+    elif data['count'] > WARNING:
+        print 'PROCS WARNING: ' + str(data['count'])
+        sys.exit(1)
+    else:
+        print 'PROCS OK: ' + str(data['count'])
+        sys.exit(0)
+else:
+    print 'PROCS UNKNOWN: ' + args.url
+    sys.exit(3)