Updating Max. Instances of a Function

Function

This API is used to update the maximum number of instances of a function.

URI

PUT /v2/{project_id}/fgs/functions/{function_urn}/config-max-instance

**Table 1** Path Parameters
Parameter	Mandatory	Type	Description
project_id	Yes	String	Project ID. For details, see Obtaining a Project ID.
function_urn	Yes	String	Function URN. For details, see the function model description.

Request Parameters

**Table 2** Request header parameters
Parameter	Mandatory	Type	Description
X-Auth-Token	Yes	String	User token. It can be obtained by calling the IAM API used to obtain a user token. The value of X-Subject-Token in the response header is the user token.
Content-Type	Yes	String	Message body type (format).

**Table 3** Request body parameters
Parameter	Mandatory	Type	Description
max_instance_num	No	Integer	Maximum number of instances. -1 indicates that the number of instances is unlimited, and 0 indicates that the function is disabled.

Response Parameters

Status code: 200

**Table 4** Response body parameters
Parameter	Type	Description
func_urn	String	Function URN.
func_name	String	Function name.
domain_id	String	Domain ID.
namespace	String	Project ID.
project_name	String	Project name.
package	String	Group to which the function belongs. This field is defined to group functions.
runtime	String	Environment for executing a function. Options: Python2.7 Python 3.6 Python 3.9 Go 1.8 Go 1.x Java 8 Java 11 Node.js 6.10 Node.js 8.10 Node.js 10.16 Node.js 12.13 Node.js 14.18 C# (.NET Core 2.0) C# (.NET Core 2.1) C# (.NET Core 3.1) Custom PHP 7.3 HTTP Custom image-based functions Enumeration values: Java8 Java11 Node.js6.10 Node.js8.10 Node.js10.16 Node.js12.13 Node.js14.18 Python2.7 Python3.6 Go1.8 Go1.x C#(.NET Core 2.0) C#(.NET Core 2.1) C#(.NET Core 3.1) Custom PHP7.3 Python3.9 http Custom Image
timeout	Integer	Maximum duration the function can be executed. Value range: 3s–259,200s.
handler	String	Handler of a function in the format of "xx.xx". It must contain a period (.). For example, for Node.js function myfunction.handler, the file name is myfunction.js, and the handler function is handler.
memory_size	Integer	Memory consumed by a function. Unit: MB. The value can be 128, 256, 512, 768, 1024, 1280, 1536, 1792, 2048, 2560, 3072, 3584 or 4096. The value ranges from 128 to 4096.
cpu	Integer	CPU resources of a function. Unit: millicore (1 core = 1000 millicores). The value of this field is proportional to that of MemorySize. By default, 100 CPU millicores are required for 128 MB memory.
code_type	String	Function code type. Options: inline: inline code zip: ZIP file obs: function code stored in an OBS bucket jar: JAR file, mainly for Java functions Custom-Image-Swr: The function code comes from the SWR custom image. Enumeration values: inline zip obs jar Custom-Image-Swr
code_url	String	If CodeType is set to obs, enter the OBS URL of the function code package. If CodeType is not set to obs, leave this parameter blank.
code_filename	String	Name of a function file. This parameter is mandatory only when CodeType is set to jar or zip.
code_size	Long	Code size in bytes.
user_data	String	Name/Value information defined for the function. These are parameters used in a function. For example, if a function needs to access a host, define Host={host_ip}. You can define a maximum of 20 such parameters, and their total length cannot exceed 4 KB.
encrypted_user_data	String	User-defined name/value to be encrypted.
digest	String	SHA512 hash value of function code, which is used to determine whether the function has changed.
version	String	Function version, which is automatically generated by the system. The version name is in the format of "vYYYYMMDD-HHMMSS" (v+year/month/day-hour/minute/second).
image_name	String	Internal identifier of a function version.
xrole	String	Agency used by the function. You need to create an agency on the IAM console. This field is mandatory when a function needs to access other services. After specifying a function execution agency, you can use the context method in the function handler to obtain a token, an AK, and an SK for accessing other cloud services. No agency is required if FunctionGraph does not access any cloud services.
app_xrole	String	Execution agency. You can optimize performance by configuring a separate agency for function execution, otherwise, the same agency is used for both execution and configuration.
description	String	Function description.
last_modified	String	Time when the function was last updated.
func_vpc	FuncVpc object	VPC configuration. An agency with VPC permissions must be configured for the function.
mount_config	MountConfig object	Mounting configuration.
strategy_config	StrategyConfig object	Function policy configuration.
dependencies	Array of Dependency objects	Dependency packages.
initializer_handler	String	Initializer of the function in the format of "xx.xx". It must contain a period (.). This parameter is mandatory when the initialization function is configured. For example, for Node.js function myfunction.initializer, the file name is myfunction.js, and the initialization function is initializer.
initializer_timeout	Integer	Maximum duration the function can be initialized. Value range: 1s–300s. This parameter is mandatory when the initialization function is configured.
pre_stop_handler	String	The pre-stop handler of a function. The value must contain a period (.) in the format of xx.xx. For example, for Node.js function myfunction.pre_stop_handler, the file name is myfunction.js, and the initialization function is pre_stop_handler.
pre_stop_timeout	Integer	Maximum duration the function can be initialized. Value range: 1s–90s.
enterprise_project_id	String	Enterprise project ID. This parameter is mandatory if you create a function as an enterprise user.
long_time	Boolean	Whether to allow a long timeout.
log_group_id	String	Log group ID.
log_stream_id	String	Log stream ID.
type	String	v2 indicates an official version, and v1 indicates a deprecated version. Enumeration values: v1 v2
enable_cloud_debug	String	Whether to enable cloud debugging to adapt to the CloudDebug scenario. (discarded)
enable_dynamic_memory	Boolean	Whether to enable dynamic memory allocation.
is_stateful_function	Boolean	Whether stateful functions are supported. This parameter is supported in FunctionGraph v2.
domain_names	String	Private domain name configured for resolution.
is_return_stream	Boolean	Whether to return stream data. (discarded)
enable_auth_in_header	Boolean	Whether to add authentication information to request header for custom image-based functions.

**Table 5** FuncVpc
Parameter	Type	Description
domain_id	String	Domain name ID.
namespace	String	Project ID.
vpc_name	String	VPC name.
vpc_id	String	VPC ID.
subnet_name	String	Subnet name.
subnet_id	String	Subnet ID.
cidr	String	Subnet mask.
gateway	String	Gateway.
security_groups	Array of strings	Security group.

**Table 6** MountConfig
Parameter	Type	Description
mount_user	MountUser object	User information.
func_mounts	Array of FuncMount objects	Mounted resources.

**Table 7** MountUser
Parameter	Type	Description
user_id	String	User ID, a non-0 integer from –1 to 65534.
user_group_id	String	User group ID, a non-0 integer from –1 to 65534.

**Table 8** FuncMount
Parameter	Type	Description
mount_type	String	Mount type. The value can be sfs, sfsTurbo, or ecs. This parameter is mandatory when func_mounts is not empty.
mount_resource	String	ID of the mounted resource (cloud service ID). This parameter is mandatory when func_mounts is not empty.
mount_share_path	String	Remote mount path. For example, 192.168.0.12:/data. This parameter is mandatory if mount_type is set to ecs.
local_mount_path	String	Function access path. This parameter is mandatory when func_mounts is not empty.

**Table 9** StrategyConfig
Parameter	Type	Description
concurrency	Integer	Maximum number of instances for a single function. For v1, the value can be 0 or –1; for v2, it ranges from –1 to 1000. -1: The function has unlimited instances. 0: The function is disabled.
concurrent_num	Integer	Number of concurrent requests per instance. This parameter is supported only by v2. The value ranges from 1 to 1,000.

**Table 10** Dependency
Parameter	Type	Description
id	String	Dependency version ID.
owner	String	Domain ID of the dependency owner.
link	String	URL of the dependency on OBS.
runtime	String	Environment for executing a function. Options: Python2.7 Python 3.6 Python 3.9 Go 1.8 Go 1.x Java 8 Java 11 Node.js 6.10 Node.js 8.10 Node.js 10.16 Node.js 12.13 Node.js 14.18 C# (.NET Core 2.0) C# (.NET Core 2.1) C# (.NET Core 3.1) Custom PHP 7.3 HTTP Custom image-based functions Enumeration values: Java8 Java11 Node.js6.10 Node.js8.10 Node.js10.16 Node.js12.13 Node.js14.18 Python2.7 Python3.6 Go1.8 Go1.x C#(.NET Core 2.0) C#(.NET Core 2.1) C#(.NET Core 3.1) Custom PHP7.3 Python3.9 http Custom Image
etag	String	MD5 value of a dependency.
size	Long	Dependency size.
name	String	Dependence name.
description	String	Dependency description.
file_name	String	File name of a dependency package (ZIP).
version	Long	Dependency version ID.
dep_id	String	Dependency ID.
last_modified	String	Time when the function was last updated.

Status code: 400

**Table 11** Response body parameters
Parameter	Type	Description
error_code	String	Error code.
error_msg	String	Error message.

Status code: 401

**Table 12** Response body parameters
Parameter	Type	Description
error_code	String	Error code.
error_msg	String	Error message.

Status code: 403

**Table 13** Response body parameters
Parameter	Type	Description
error_code	String	Error code.
error_msg	String	Error message.

Status code: 404

**Table 14** Response body parameters
Parameter	Type	Description
error_code	String	Error code.
error_msg	String	Error message.

Status code: 500

**Table 15** Response body parameters
Parameter	Type	Description
error_code	String	Error code.
error_msg	String	Error message.

Example Requests

Update the maximum number of instances of a function to 300.

PUT https://{Endpoint}/v2/{project_id}/fgs/functions/{function_urn}/config-max-instance

{
  "max_instance_num" : 300
}

Example Responses

Status code: 200

{
  "func_urn" : "urn:fss:xxxxxxxx:7aad83af3e8d42e99ac194e8419e2c9b:function:default:test",
  "func_name" : "test",
  "domain_id" : "14ee2e3501124efcbca7998baa24xxxx",
  "namespace" : "46b6f338fc3445b8846c71dfb1fbxxxx",
  "project_name" : "xxxxxx",
  "package" : "default",
  "runtime" : "Node.js6.10",
  "timeout" : 3,
  "handler" : "fssExampleCsharp2.1::fssExampleCsharp21.Program::MyFunc",
  "memory_size" : 128,
  "cpu" : 300,
  "code_type" : "inline",
  "code_filename" : "index.js",
  "code_size" : 272,
  "digest" : "faa825575c45437cddd4e369bea69893bcbe195d478178462ad90984fe72993f3f59d15f41c5373f807f3e05fb9af322c55dabeb16565c386e402413458e6068",
  "version" : "latest",
  "image_name" : "latest-191025153727@zehht",
  "last_modified" : "2019-10-25 15:37:27",
  "strategy_config" : {
    "concurrency" : 300,
    "concurrent_num" : 1
  }
}