Help Center/ Cloud Eye/ API Reference/ API V2/ Alarm Templates/ This API is used to modify a custom template.

Updated on 2025-10-30 GMT+08:00

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This API is used to modify a custom template.

Function

Debugging

You can debug this API through automatic authentication in API Explorer or use the SDK sample code generated by API Explorer.

Authorization Information

Each account has all the permissions required to call all APIs, but IAM users must be assigned the required permissions.

If you are using role/policy-based authorization, see Permissions Policies and Supported Actions for details on the required permissions.

If you are using identity policy-based authorization, the following identity policy-based permissions are required.

Action	Access Level	Resource Type (*: required)	Condition Key	Alias	Dependencies
ces:customAlarmTemplates:put	Write	-	g:EnterpriseProjectId	-	-

URI

PUT /v2/{project_id}/alarm-templates/{template_id}

**Table 1** Path Parameters
Parameter	Mandatory	Type	Description
project_id	Yes	String	Project ID.
template_id	Yes	String	ID of an alarm template.

Request Parameters

**Table 2** Request header parameters
Parameter	Mandatory	Type	Description
X-Auth-Token	Yes	String	Tenant token.

**Table 3** Request body parameters
Parameter	Mandatory	Type	Description
template_name	Yes	String	Definition Alarm template name. Constraints N/A Range The value allows 1 to 128 characters. It must start with a letter and can only contain letters, digits, underscores (_), and hyphens (-). Default Value N/A
template_type	No	Integer	Type of a custom alarm template. 0 indicates an alarm template for metrics. 2 indicates an alarm template for events.
template_description	No	String	Definition Alarm template description. Constraints N/A Range [0,256] Default Value An empty string
policies	Yes	Array of Policies objects	Alarm policies in an alarm template.

**Table 4** Policies
Parameter	Mandatory	Type	Description
namespace	Yes	String	Definition Namespace of a service. For details about the namespace of each service, see Service Namespaces. Constraints N/A Range The value is in the service.item format. The values of service and item must be a string, starting with a letter and containing only digits (0–9), letters (case-insensitive), and underscores (_). The value must contain 3 to 32 characters. Default Value N/A
dimension_name	No	String	Definition Resource dimension. Constraints The DimensionName field of the event alarm template is empty. Range The value must start with a letter. Each dimension allows a maximum of 32 characters and can only contain digits, letters, underscores (_), and hyphens (-). Multiple dimensions are separated by commas (,). A maximum of four dimensions are supported. Example: instance_id for single-dimension scenarios and instance_id,disk for multi-dimension scenarios. Default Value N/A
metric_name	Yes	String	Definition Metric name of a resource. For details about the metrics of each service, see Service Metric Names. Constraints N/A Range The value must start with a letter and can only contain digits, letters, underscores (_), and hyphens (-). 1 to 96 characters For example, the ECS metric cpu_util indicates the CPU usage of an ECS. The DDS metric mongo001_command_ps indicates the command execution frequency. Default Value N/A
extra_info	No	MetricExtraInfo object	Definition Additional information about the alarm policy. Constraints N/A
period	Yes	Integer	Definition Interval (seconds) for checking whether the alarm rule conditions are met. Constraints N/A Range The value can be: 0: default value. This value can be used for event alarms. 1: original metric period. For example, if the original period of an RDS metric is 60s, the metric data is collected and calculated every 60s. 300: The metric data is collected and calculated every 5 minutes. 1200: The metric data is collected and calculated every 20 minutes. 3600: The metric data is collected and calculated every hour. 14400: The metric data is collected and calculated every 4 hours. 86400: The metric data is collected and calculated every day. Default Value N/A
filter	Yes	String	Definition Aggregation method. Constraints N/A Range average, variance, min, max, or sum Default Value N/A
comparison_operator	Yes	String	Definition Threshold symbol. Constraints The threshold symbols for metric alarms are >, >=, <, <=, =, !=, cycle_decrease, cycle_increase, and cycle_wave. The threshold symbols for event alarms are >, >=, <, <=, =, and !=. Range The value can be >, <, >=, <=, =, !=, cycle_decrease, cycle_increase, or cycle_wave. cycle_decrease indicates the decrease relative to the last period; cycle_increase indicates the increase relative to the last period; cycle_wave indicates the increase or decrease relative to the last period. Default Value N/A
value	No	Number	Definition Alarm threshold. Constraints If there is only one threshold, value and alarm_level are used in pairs. If there are both hierarchical_value and value, hierarchical_value is used. Range N/A Default Value N/A
hierarchical_value	No	HierarchicalValue object	Definition Multi-level alarm threshold. Constraints If there are both hierarchical_value and value, hierarchical_value is used. When you create or modify an alarm rule, you can set only one threshold in the following scenarios: The alarm type is Metric and the alarm policy is Trigger an alarm when all policies are met. The alarm type is Event.
unit	No	String	Definition Data unit. The value can contain a maximum of 32 characters. Constraints N/A Range [0,32] Default Value N/A
selected_unit	No	String	Definition The metric unit you selected. It is used for subsequent metric data display and calculation. Constraints N/A Range [0,64] Default Value N/A
count	Yes	Integer	Definition Number of times that the alarm triggering conditions are met. Constraints N/A Range For event alarms, the value ranges from 1 to 180. For metric and website alarms, the value can be 1, 2, 3, 4, 5, 10, 15, 30, 60, 90, 120, or 180. Default Value N/A
type	No	String	Definition Alarm policy type. This API has been deprecated. Constraints N/A Range The value can only be auto. Default Value N/A
alarm_level	No	Integer	Definition Alarm severity. Constraints N/A Range The value can be: 1: critical 2: major 3: minor 4: warning Default Value N/A
suppress_duration	No	Integer	Definition Alarm suppression interval, in seconds. Constraints N/A Range The value can be: 0: In the immediate triggering scenario, 0 indicates that the alarm is not suppressed. In the accumulated triggering scenario, 0 indicates that the alarm is generated only once. 300: An alarm is generated every 5 minutes once the alarm triggering condition is met. 600: An alarm is generated every 10 minutes once the alarm triggering condition is met. 900: An alarm is generated every 15 minutes once the alarm triggering condition is met. 1800: An alarm is generated every 30 minutes once the alarm triggering condition is met. 3600: An alarm is generated every 60 minutes once the alarm triggering condition is met. 10800: An alarm is generated every 3 hours once the alarm triggering condition is met. 21600: An alarm is generated every 6 hours after the alarm triggering condition is met. 43200: An alarm is generated every 12 hours once the alarm triggering condition is met. 86000: An alarm is generated once every day once the alarm triggering condition is met. Default Value N/A

**Table 5** MetricExtraInfo
Parameter	Mandatory	Type	Description
origin_metric_name	Yes	String	Definition Original metric name. Constraints N/A Range 0 to 4,096 characters Default Value N/A
metric_prefix	No	String	Definition Metric name prefix. Constraints N/A Range 0 to 4,096 characters Default Value N/A
custom_proc_name	No	String	Definition Name of a process. Constraints N/A Range [0,250] Default Value N/A
metric_type	No	String	Definition Metric type. Constraints N/A Range 0 to 32 characters Default Value N/A

**Table 6** HierarchicalValue
Parameter	Mandatory	Type	Description
critical	No	Double	Definition Threshold for critical alarms. Constraints N/A Range [-1.7976931348623157e+108, 1.7976931348623157e+108] Default Value N/A
major	No	Double	Definition Threshold for major alarms. Constraints N/A Range [-1.7976931348623157e+108, 1.7976931348623157e+108] Default Value N/A
minor	No	Double	Definition Threshold for minor alarms. Constraints N/A Range [-1.7976931348623157e+108, 1.7976931348623157e+108] Default Value N/A
info	No	Double	Definition Threshold for warnings. Constraints N/A Range [-1.7976931348623157e+108, 1.7976931348623157e+108] Default Value N/A

Response Parameters

Status code: 204

No Content

Status code: 400

**Table 7** Response body parameters
Parameter	Type	Description
error_code	String	Status codes customized by each cloud service when a request error occurs.
error_msg	String	Request error message.
request_id	String	Request ID.

Status code: 401

**Table 8** Response body parameters
Parameter	Type	Description
error_code	String	Status codes customized by each cloud service when a request error occurs.
error_msg	String	Request error message.
request_id	String	Request ID.

Status code: 403

**Table 9** Response body parameters
Parameter	Type	Description
error_code	String	Status codes customized by each cloud service when a request error occurs.
error_msg	String	Request error message.
request_id	String	Request ID.

Status code: 404

**Table 10** Response body parameters
Parameter	Type	Description
error_code	String	Status codes customized by each cloud service when a request error occurs.
error_msg	String	Request error message.
request_id	String	Request ID.

Status code: 500

**Table 11** Response body parameters
Parameter	Type	Description
error_code	String	Status codes customized by each cloud service when a request error occurs.
error_msg	String	Request error message.
request_id	String	Request ID.

Example Requests

Modifying a custom template whose template_name is my_template.

{
  "template_name" : "my_template",
  "template_description" : "hello world",
  "policies" : [ {
    "namespace" : "SYS.ECS",
    "dimension_name" : "instance_id",
    "metric_name" : "cpu_util",
    "period" : 300,
    "filter" : "sum",
    "comparison_operator" : ">",
    "value" : 2,
    "unit" : "bit/s",
    "count" : 2,
    "alarm_level" : 2,
    "suppress_duration" : 300
  } ]
}