SigNoz is an open-source APM. It helps developers monitor their applications & troubleshoot problems, an open-source alternative to DataDog, NewRelic, etc.

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the _*titles*_ of Slack alerts i send from my k8s deployment link to `localhost:8080` - the links in the alert *body* correctly link to the external hostname

<https://signoz.io/docs/manage/administrator-guide/configuration/alertmanager/>

More specifically:
<https://signoz.io/docs/manage/administrator-guide/configuration/alertmanager/#external-url-alertmanager-configuration>

ah, found it <https://github.com/SigNoz/charts/blob/7637ee1abb1653a222c67683be1ee1b10cc78788/charts/signoz/values.yaml#L865>