Can't add labels for alert rules at group level

[ahrtr]

We defined lots of alert rules, which can be classified as a couple of groups. We need to send alerts of each group to a different target (pagerDuty service). So the plan is to add a different label for each group, i.e., group1, group2, group3, etc.

But currently we have to add the label to each alert rule. It would be better if we can set the label to the group instead of each alert rule. What we want is something as below,

groups:
- name: alert rules for group1
  labels:
      service: group1
  rules:

  - alert: group1_rule1
    expr: xxxxxx
    for: 10m
    labels:
      severity: critical
    annotations:
      description: ""
      summary: xxxxxx

  - alert: group1_rule2
    expr: xxxxxx
    for: 10m
    labels:
      severity: critical
    annotations:
      description: ""
      summary: xxxxxx

[brian-brazil]

You need to add it to each alert specifically, we generally try to avoid having more than one way to do things and this would also interact poorly with recording rules. You can always use the templating features of your configuration management system if you find that this is too noisy.

[lijieki126]

@ahrtr How do you solve this problem?
“You need to add it to each alert specifically”，how to do this？