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I need to send a specific alert to multiple channels on Slack through alertmanager via a prometheus .yml file.

At the moment my current config is one to one, meaning one alert to one channel. Therefore the alert \' vs_replica_sql_slave_status\' goes to \'slack_monitoring_prod\'

prometheus.yml:

groups:
      - name: vs_replica_sql_slave_status
        rules:
           - alert: vs_slave_status
             for: 2m
             expr: (mysql_global_status_slave_running{instance=~\"vs-replica.+\",alias!~\"vs-replica-test\",alia
             labels:
               severity: \"critical\"
             annotations:
                     identifier: \"{{ $labels.alias }}\"
                     description: \"Slave Status not running\"

alertmanager.yml:

 routes:
  - match:
      severity: critical
    receiver: slack_monitoring_prod

I need to send the alert to another channel as well which is:

- match:
      severity: critical_dwh
    receiver: critical_dwh

In the first block of code I have labels > severity > critical which points to first channel. Is it possible to add another label that will point to the second channel or will this break the whole config? i.e:

labels:
   severity: \"critical\"
   severity: \"critical_dwh\"

Any suggestion or methods on how to perform this would be greatly appreciated.