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Check_MK Integration

Check_MK is an extension to the Nagios monitoring system that allows creating rule-based configuration using Python and offloading work from the Nagios core to make it scale better, allowing more systems to be monitored from a single Nagios server.

OpsGenie is an alert and notification management solution that is highly complementary to Check_MK.

What does OpsGenie offer Check_MK users?

By using OpsGenie Check_MK Integration, you can forward Check_MK notifications to OpsGenie. OpsGenie can determine the right people to notify based on on-call schedules, using email, text messages (SMS), phone calls and iOS & Android push notifications, and escalating alerts until the alert is acknowledged or closed.

Functionality of the integration

  • When a host or service state becomes down in Check_MK, an alert will be created in OpsGenie.
  • When the problem is acknowledged in Check_MK, the alert will be acknowledged in OpsGenie.
  • When the state of host becomes UP or the state of service becomes OK again in Check_MK, the alert will be closed in OpsGenie.

Add Check_MK Integration in OpsGenie

  1. Please create an OpsGenie account if you haven't done already
  2. Go to OpsGenie Check_MK Integration page,
  3. Specify who should be notified for Check_MK alerts using the "Teams" field. Auto-complete suggestions will be provided as you type.
  4. Click on "Save Integration".

OpsGenie Check_MK Plugin

  1. Get OpsGenie Check_MK integration plugin from here.
  2. Give the necessary permissions to the script using the command below:
sudo chmod +x opsgenie
  1. Put the plugin under the directory,
    • /omd/sites/[site name]/local/share/check_mk/notifications/ if you're using OMD version.
    • /usr/share/check_mk/notifications if you're using standalone version.

Configuration in Check_MK

  1. In Check_MK, click on Users on the left under WATO Configuration box.
  2. Click on New User button on the top.
  3. Enter a username and a full name for this new user.
  4. Leave blank Authentication part and check disable the login to this account to value.
  5. Select Normal monitoring user for the Roles.
  6. Click on Save button.
  1. After creating the new user, you will be redirected to Users page, again.
  2. Click on the notification button under Actions column for the newly created user.
  1. Click on New Rule on the top.
  2. Enter OpsGenie as the Description.
  3. Select OpsGenie as the Notification Method.
  4. Paste your OpsGenie API Key into the textbox under Call with the following parameters: combobox.
  5. Click on Save button.
  1. After saving, click on Main Menu on the left under WATO Configuration box.
  2. You will notice an orange button labeled # Changes on the top.
  3. Click on that button and click on Activate Changes button on the top of the newly opened page, and you're done.

Sample Webhook Message from OpsGenie Check_MK Plugin

    "HOSTCHECKCOMMAND": "check-mk-host-smart",
    "HOSTSTATE": "UP",
    "LASTHOSTUP_REL": "0d 00:00:03",
    "SERVICEDESC": "CPU utilization",
    "SERVICEPERFDATA": "user=88.272;;;; system=11.728;;;; wait=0.000;;;; steal=0;;;; guest=0;;;;",
    "HOSTTAGS": "/wato/ cmk-agent ip-v4 ip-v4-only lan prod site:og tcp wato",
    "MAIL_COMMAND": "mail -s '\$SUBJECT\\\$' '\$CONTACTEMAIL\\\$'",
    "HOSTNAME": "localhost",
    "LASTHOSTSTATECHANGE": "1478611924",
    "HOST_TAGS": "/wato/ cmk-agent ip-v4 ip-v4-only lan prod site:og tcp wato",
    "SHORTDATETIME": "2016-11-10 13:20:42",
    "CONTACTNAME": "opsgenie",
    "MONITORING_HOST": "ubuntu-pc",
    "HOSTATTEMPT": "1",
    "SERVICEFORURL": "CPU%20utilization",
    "WHAT": "SERVICE",
    "HOSTALIAS": "localhost",
    "HOST_FILENAME": "/wato/",
    "SERVICECHECKCOMMAND": "check_mk-kernel.util",
    "LASTSERVICEOK": "1478773181",
    "HOSTDOWNTIME": "0",
    "HOST_SL": "",
    "HOST_ADDRESS_4": "",
    "HOST_ADDRESS_6": "",
    "SERVICEOUTPUT": "CRIT - user: 88.3%, system: 11.7%, wait: 0.0%, steal: 0.0%, guest: 0.0%, total: 100.0% (warn/crit at 40.0%/60.0%)(!!)",
    "CONTACTALIAS": "OpsGenie",
    "HOSTADDRESS": "",
    "HOSTGROUPNAMES": "check_mk",
    "OMD_ROOT": "/omd/sites/og",
    "LASTHOSTSTATECHANGE_REL": "1d 20:48:39",
    "HOSTURL": "/check_mk/",
    "HOSTSTATEID": "0",
    "MICROTIME": "1478773242189620",
    "SERVICEDISPLAYNAME": "CPU utilization",
    "LOGDIR": "/omd/sites/og/var/check_mk/notify",
    "OMD_SITE": "og",
    "SERVICE_SL": "",
    "DATE": "2016-11-10",
    "HOSTOUTPUT": "Packet received via smart PING",
    "HOSTFORURL": "localhost",
    "LASTHOSTUP": "1478773240",
    "LASTSERVICEOK_REL": "0d 00:01:02",
    "HOST_EC_CONTACT": "",
    "CONTACTS": "opsgenie",
    "SVC_SL": "",
    "LONGDATETIME": "Thu Nov 10 13:20:42 +03 2016",
    "SERVICEURL": "/check_mk/"

Sample alert

Check_MK Integration