opentelekomcloud_ces_alarmrule : cannot use multiple dimensions

[reiSh6phoo9o]

Hi,

I'm trying to create an alarmrule with multiple dimensions. As I understand from the docs ( https://registry.terraform.io/providers/opentelekomcloud/opentelekomcloud/latest/docs/resources/ces_alarmrule#dimensions ), this should be possible, though the docs here are not clear to me ("list of metric dimensions" is vague and rather unclear. I guess: multiple blocks).

I can create multiple dimensions using the webgui, but not using terraform.

Specifically, I want to create one alarmrule, which monitors both nodes of a HA RDS setup.

Terraform provider version

Terraform v1.5.7
on darwin_amd64

• provider registry.terraform.io/hashicorp/random v3.6.0
• provider registry.terraform.io/opentelekomcloud/opentelekomcloud v1.35.14

Affected Resource(s)

• opentelekomcloud_ces_alarmrule

Terraform Configuration Files

resource "opentelekomcloud_ces_alarmrule" "high_cpu_usage" {
  alarm_name    = "test"
  alarm_level   = 2
  metric {
    namespace   = "SYS.RDS"
    metric_name = "rds001_cpu_util"
    dimensions {
      name  = "rds_instance_id"
      value = opentelekomcloud_rds_instance_v3.main.nodes[0].id
    }
    dimensions {
      name  = "rds_instance_id"
      value = opentelekomcloud_rds_instance_v3.main.nodes[1].id
    }
  }
  condition { ... }
    period              = 300
    filter                 = "max"
    comparison_operator = ">"
    value                = 80
    unit                  = "%"
    count               = 5
  }
  alarm_actions {
    type              = "notification"
    notification_list = [opentelekomcloud_smn_topic_v2.alerts.id]
  }
  ok_actions {
    type              = "notification"
    notification_list = [opentelekomcloud_smn_topic_v2.alerts.id]
  }
}

Steps to Reproduce

1. terraform apply

Expected Behavior

The alarmrule should be created, and it should monitor two objects (node0 and node2).

Actual Behavior

An alarmrule is created, but it does not trigger an alert. If I compare it to the alertrule I click in the GUI, the diff is:

• the terraformed lertrule contains only one, not two monitored objects
• id of the monitored object is a comma-separated string with two ids, e.g. "710c112406b444639443763984b6cb04no01,710c112406b444639443763984b6cb04no01"

References

from this ticket, I expected that the syntax is use should work:

• CES: Alarm Rule shows Insufficient Data when using multiple dimensions  #1605

[anton-sidelnikov]

Hi @reiSh6phoo9o same behaviour if you create alarm rule by api through curl, i will create internal ticket, not terraform issue

[anton-sidelnikov]

Created internal issue: https://jira.tsi-dev.otc-service.com/browse/BM-3840

[deem1978]

Hello @anton-sidelnikov, is there any news related to this topic?

[anton-sidelnikov]

Hi @deem1978, sorry but still in progress. Seems the backend team will publish newer version of api v2.0, which will give us ability to use multiple dimensions.