CAN we Trigger Alert if any match_re condition matches in Alertmanager?

[Shubham Choudhary]

Alertmanager > routes > match_re > CAN we Trigger Alert if any match_re condition matches?

I have two kinds of alerts;

• 1st one has namespace label but doesn't team_tag label
• 2nd one has team_tag label but doesn't have namespace label

I want to catch both kinds of alerts in ONE receiver. The below route is just for one team like this we have N teams.

Thought possible solution

1. I can add two receivers pointing to same the same endpoint(slack channel/teams/email...) and use them to check separately once for namespace and once for team_tag. But this will result in duplication.
2. I can maybe use alert_relabel_configs on the Prometheus side to inject dummy values either when namespace or team_tag is missing and append that dummy value to in above regex. But this will increase complexity on others.