Enable notifications filtering¶

You can enable StackLight LMA to filter notifications and send the particular ones to specified notification channels. For example, you can configure StackLight LMA to send the CRITICAL notifications to email and WARNING notifications to Slack.

To enable notifications filtering:

1. Log in to the Salt Master node.

2. Open the classes/cluster/<cluster_name>/stacklight/server.yml file of the Reclass model for editing.

3. Specify the label and value parameters in the match_re section for a particular receiver.

   Examples:

   To send the CRITICAL notifications to email:

   parameters:
     prometheus:
       alertmanager:
         enabled: true
         config:
           route:
             routes:
               email:
                 receiver: SMTP
                 match_re:
                   - label: route
                     value: '(.*email.*)'
                   - label: severity
                     value: critical
                 continue: true
   

   To send the CRITICAL and WARNING notifications to Slack:

   parameters:
     prometheus:
       alertmanager:
         enabled: true
         config:
           route:
             routes:
               slack:
                 receiver: HTTP-slack
                 match_re:
                   - label: route
                     value: '(.*slack.*)'
                   - label: severity
                     value: critical|warning
                 continue: true
   

4. Apply the changes:

   salt -C 'I@docker:swarm and I@prometheus:server' state.sls prometheus.server -b1