doc-exports/docs/ces/api-ref/UpdateAlarmTemplate.html

Modifying a Custom Alarm Template

Function

This API is used to modify a custom alarm template.

URI

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

Table 1 Path parameters

Parameter	Mandatory	Type	Description
project_id	Yes	String	Project ID. For details about how to obtain the project ID, see Obtaining a Project ID. Minimum: 1 Maximum: 64 Regular expression matching: ^[a-zA-Z0-9-]{1,64}$
template_id	Yes	String	ID of an alarm template. Minimum: 2 Maximum: 64

Request Parameters

Table 2 Request header parameters

Parameter	Mandatory	Type	Description
X-Auth-Token	Yes	String	User token. It is a response to the API for obtaining a user token. This API is the only one that does not require authentication. After a response is returned, the value of X-Subject-Token in the response header is the token. Minimum: 1 Maximum: 16384

Table 3 Request body parameters

Parameter	Mandatory	Type	Description
template_name	Yes	String	Alarm template name. It must start with a letter and can contain letters, digits, underscores (_), hyphens (-), parentheses, and periods (.). Fuzzy match is supported. Minimum: 1 Maximum: 128 Regular expression matching: ^([\u4E00-\u9FFF]|[a-z]|[A-Z]|[0-9]|_|-|\(|\)|\.|\s)+$
template_type	No	Integer	Type of a custom alarm template. The value can be: 0: metric template 2: event template
template_description	No	String	Supplementary information about an alarm template. The description can contain 0 to 256 characters and is left blank by default.
policies	Yes	Array of Policies objects	Alarm policies in an alarm template. Array length: 1 to 50

Table 4 Policies

Parameter	Mandatory	Type	Description
namespace	Yes	String	Namespace of a service. For details about the namespace of each service, see Service Namespaces. The namespace must be in the service.item format and contain 3 to 32 characters. service and item must start with a letter and can contain only letters, digits, and underscores (_). Minimum: 3 Maximum: 32
dimension_name	No	String	Resource dimension, which must start with a letter. A dimension allows a maximum of 32 characters can only contain digits, letters, underscores (_), and hyphens (-). If there are multiple dimensions, use commas (,) to separate them. DimensionName in event alarm templates must be left blank.
metric_name	Yes	String	Metric name of a resource. For details about the metrics of each service, see Service Metric Names. The value must start with a letter and can only contain digits, letters, underscores (_), and hyphens (-). It allows 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. Regular expression matching: ^([A-Za-z]){1}([0-9A-Za-z]|_|-)*$
period	Yes	Integer	Interval (seconds) for checking whether the alarm rule conditions are met. The value can be: 0 1 300 1200 3600 14400 86400
filter	Yes	String	Data aggregation method. The value can be: average: average value of metric data within an aggregation period. max: maximum value of metric data in an aggregation period. min: minimum value of metric data within an aggregation period. sum: sum of metric data within an aggregation period. variance: variance value of metric data within an aggregation period.
comparison_operator	Yes	String	Operator of an alarm threshold. Regular expression matching: ^(>|<|>=|<=|=|!=)$
value	No	Number	Alarm threshold. Minimum: 0 Maximum: Number.MAX_VALUE (1.7976931348623156E108)
unit	No	String	Data unit. The value can contain a maximum of 32 characters. You can set this parameter based on your service needs. Minimum: 0 Maximum: 32
count	Yes	Integer	Number of consecutive alarm triggering times. 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.
alarm_level	No	Integer	Alarm severity, which can be 1 (critical), 2 (major), 3 (minor), or 4 (warning). The default value is 2.
suppress_duration	Yes	Integer	Alarm suppression period, in seconds. When the period is 0, only one alarm is generated. The value can be: 0 300 600 900 1800 3600 10800 21600 43200 86400

Response Parameters

Status code: 400

Table 5 Response body parameters

Parameter	Type	Description
error_code	String	Status code customized by each cloud service when a request error occurs. Minimum: 0 Maximum: 256
error_msg	String	Request error message. Minimum: 0 Maximum: 256
request_id	String	Request ID. Minimum: 0 Maximum: 256

Status code: 401

Table 6 Response body parameters

Parameter	Type	Description
error_code	String	Status code customized by each cloud service when a request error occurs. Minimum: 0 Maximum: 256
error_msg	String	Request error message. Minimum: 0 Maximum: 256
request_id	String	Request ID. Minimum: 0 Maximum: 256

Status code: 403

Table 7 Response body parameters

Parameter	Type	Description
error_code	String	Status code customized by each cloud service when a request error occurs. Minimum: 0 Maximum: 256
error_msg	String	Request error message. Minimum: 0 Maximum: 256
request_id	String	Request ID. Minimum: 0 Maximum: 256

Status code: 404

Table 8 Response body parameters

Parameter	Type	Description
error_code	String	Status code customized by each cloud service when a request error occurs. Minimum: 0 Maximum: 256
error_msg	String	Request error message. Minimum: 0 Maximum: 256
request_id	String	Request ID. Minimum: 0 Maximum: 256

Status code: 500

Table 9 Response body parameters

Parameter	Type	Description
error_code	String	Status code customized by each cloud service when a request error occurs. Minimum: 0 Maximum: 256
error_msg	String	Request error message. Minimum: 0 Maximum: 256
request_id	String	Request ID. Minimum: 0 Maximum: 256

Example Requests

Modifying a custom template whose template_name is my_template, including its metric period, aggregation method, threshold, unit, count, alarm suppression duration, and alarm severity.

{
  "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
  } ]
}

Example Responses

None

Status Codes

Status Code	Description
204	No Content
400	Parameter verification failed.
401	Authentication failed.
403	Authentication failed.
404	Resources not found.
500	Failed to complete the request because of an internal server error.

Error Codes

See Error Codes.

Parent topic: Alarm Templates