Chapter 10. Configuring alert notifications

Procedure

1. In the Administrator perspective, navigate to Administration Cluster Settings Configuration Alertmanager.

   Note

   Alternatively, you can navigate to the same page through the notification drawer. Select the bell icon at the top right of the OpenShift Container Platform web console and choose Configure in the AlertmanagerReceiverNotConfigured alert.

2. Select Create Receiver in the Receivers section of the page.
3. In the Create Receiver form, add a Receiver Name and choose a Receiver Type from the list.

4. Edit the receiver configuration:

   • For PagerDuty receivers:

     1. Choose an integration type and add a PagerDuty integration key.
     2. Add the URL of your PagerDuty installation.
     3. Select Show advanced configuration if you want to edit the client and incident details or the severity specification.

   • For webhook receivers:

     1. Add the endpoint to send HTTP POST requests to.
     2. Select Show advanced configuration if you want to edit the default option to send resolved alerts to the receiver.

   • For email receivers:

     1. Add the email address to send notifications to.
     2. Add SMTP configuration details, including the address to send notifications from, the smarthost and port number used for sending emails, the hostname of the SMTP server, and authentication details.
     3. Choose whether TLS is required.
     4. Select Show advanced configuration if you want to edit the default option not to send resolved alerts to the receiver or edit the body of email notifications configuration.

   • For Slack receivers:

     1. Add the URL of the Slack webhook.
     2. Add the Slack channel or user name to send notifications to.
     3. Select Show advanced configuration if you want to edit the default option not to send resolved alerts to the receiver or edit the icon and username configuration. You can also choose whether to find and link channel names and usernames.

5. By default, firing alerts with labels that match all of the selectors will be sent to the receiver. If you want label values for firing alerts to be matched exactly before they are sent to the receiver:

   1. Add routing label names and values in the Routing Labels section of the form.
   2. Select Regular Expression if want to use a regular expression.
   3. Select Add Label to add further routing labels.
6. Select Create to create the receiver.