prometheus alertreceiver webhook2mail
Openshift alert receivers can only be managed by cluster admins in the secret alertmanager-main in the namespace openshift-monitoring.
paw2mail is a webservice that accepts alerts and sends them to an email address.
deprecated
So alert routing for user-defined is in Technology Preview.
In OpenShift Container Platform 4.10, a cluster administrator can enable alert routing for user-defined projects.
from enabling-alert-routing-for-user-defined-projects
So paw2mail is not needed anymore.
config
The receiver email adress is defined in label paw2mail:
apiVersion: monitoring.coreos.com/v1
kind: PrometheusRule
metadata:
name: foo
spec:
groups:
- name: bar
rules:
- alert: foobar_is_bigger_42
expr: 'example_count_total{item_type="/count"} > 42'
labels:
severity: Info
paw2mail: jon@example.net
Setup
Needed environments
export smtp_from=cluster@example.net
export smtp_host=mail.example.net
export smtp_port=25
Optional
export smtp_user=clustermailer
export smtp_pass=xxxxxxxxxxxxx