bundles/icinga2: add check_usv_snmp

bundles/icinga2/files/check_usv_snmp

@@ -0,0 +1,69 @@
+#!/usr/bin/env python3
+
+from sys import argv, exit
+
+from easysnmp import Session
+
+try:
+    hostname = argv[1]
+    community = argv[2]
+except IndexError:
+    print('Usage: {} <hostname> <snmp_community>'.format(argv[0]))
+    exit(3)
+
+try:
+    session = Session(hostname=hostname, community=community, version=2)
+
+    items = session.walk('iso.3.6.1.2.1.33')
+
+    result = {}
+    for item in items:
+        result[item.oid[len('iso.3.6.1.2.1.33')+1:]] = item.value
+
+    warn = set()
+    crit = set()
+
+    if int(result['1.2.2.0']):
+        warn.add('USV is on battery!')
+
+    # Estimated runtime in minutes
+    if int(result['1.2.3.0']) < 15:
+        crit.add('Remaining runtime is less than 10 minutes! Only {} minutes left.'.format(result['1.2.3.0']))
+    elif int(result['1.2.3.0']) < 25:
+        warn.add('Remaining runtime is less than 15 minutes! Only {} minutes left.'.format(result['1.2.3.0']))
+
+    # Battery status in percent
+    if int(result['1.2.4.0']) < 10:
+        crit.add('Remaining runtime is less than 10%! Only {}% left.'.format(result['1.2.4.0']))
+    elif int(result['1.2.4.0']) < 25:
+        warn.add('Remaining runtime is less than 15%! Only {}% left.'.format(result['1.2.4.0']))
+
+    # Output load in percent
+    if int(result['1.4.4.1.5.1']) > 90:
+        crit.add('Output Power is more than 90% of rated capacity: {} W'.format(result['1.4.4.1.4.1']))
+    elif int(result['1.4.4.1.5.1']) > 80:
+        warn.add('Output Power is more than 80% of rated capacity: {} W'.format(result['1.4.4.1.4.1']))
+
+    for line in sorted(crit):
+        print(line)
+
+    for line in sorted(warn):
+        print(line)
+
+    if crit:
+        exit(2)
+    elif warn:
+        exit(1)
+    else:
+        print('{model} running{from_bat} at {out_pct}% load ({out_w} W), battery at {bat_pct}% ({bat_min} min)'.format(
+            model=result['1.1.2.0'],
+            out_pct=result['1.4.4.1.5.1'],
+            out_w=result['1.4.4.1.4.1'],
+            bat_pct=result['1.2.4.0'],
+            bat_min=result['1.2.3.0'],
+            from_bat=' from battery' if int(result['1.2.2.0']) else '',
+        ))
+        exit(0)
+except Exception as e:
+    print(repr(e))
+    exit(3)

bundles/icinga2/files/icinga2/check_commands.conf

@@ -105,3 +105,11 @@ object CheckCommand "check_smtp" {
         }
     }
 }
+
+object CheckCommand "check_usv" {
+    import "plugin-check-command"
+    import "ipv4-or-ipv6"
+
+    command = [ "/usr/local/share/icinga/plugins/check_usv_snmp", "$address$", "$snmp_community$" ]
+    vars.snmp_community = "public"
+}

bundles/icinga2/items.py

@@ -85,6 +85,9 @@ files = {
     '/usr/local/share/icinga/plugins/check_freifunk_node': {
         'mode': '0755',
     },
+    '/usr/local/share/icinga/plugins/check_usv_snmp': {
+        'mode': '0755',
+    },
     '/etc/sshmon.priv': {
         'content': repo.vault.decrypt_file(join('sshmon', 'sshmon.key.vault')),
         'owner': 'nagios',

nodes/home/usv01.py

@@ -8,6 +8,16 @@ nodes['home.usv01'] = {
                 },
             },
         },
+        'icinga2_api': {
+            'usv': {
+                'services': {
+                    'USV STATUS': {
+                        'check_command': 'check_usv',
+                        'vars.notification.mail': True,
+                    },
+                },
+            },
+        },
     },
 }