Function Model

Function Model

The function model of FunctionGraph is as follows:

{
  "functions": [
   {
    "func_urn": "urn:fss:xxxxxxxxx:7aad83af3e8d42e99ac194e8419e2c9b:function:default:test",
    "func_name": "test",
    "domain_id": "cff01_hk",
    "namespace": "7aad83af3e8d42e99ac194e8419e2c9b",
    "project_name": "xxxxxxxxxx",
    "package": "default",
    "runtime": "Node.js6.10",
    "timeout": 3,
    "handler": "test.handler",
    "memory_size": 128,
    "cpu": 300,
    "code_type": "inline",
    "code_url": "",
    "code_filename": "index.js",
    "code_size": 272,
    "user_data": "",
    "digest": "decbce6939297b0b5ec6d1a23bf9c725870f5e69fc338a89a6a4029264688dc26338f56d08b6535de47f15ad538e22ca66613b9a46f807d50b687bb53fded1c6",
    "version": "latest",
    "image_name": "latest-5qe8e",
    "xrole": "cff",
    "app_xrole": null,
    "description": "111",
    "version_description": "",
    "last_modified": "2018-03-28T11:30:32+08:00",
"func_code": {
  "file": "",
  "link": ""
 },
 "func_vpc":null,
 "mount_config":null,
 "depend_list": null,
 "strategy_config": {
     "concurrency": -1
 },
 "extend_config": "",
 "dependencies": null,
"initializer_handler": "index.initializer",
"initializer_timeout": 3
   }
  ],
  "next_marker": 45
 }

Description

Table 1 describes the parameters in the function model.

Table 1 Parameters in the function model

Parameter

Description

func_urn

Function URN.

func_name

Function name.

domain_id

Tenant name.

namespace

Project ID.

project_name

Project name.

package

Group to which the function belongs. This field is defined to group functions.

runtime

Environment for executing the function. FunctionGraph supports Node.js 6.10, Node.js 8.10, Node.js 10.16, Node.js 12.13, Python 2.7, Python 3.6, Java 8, Go 1.8, C# (.NET Core 2.0), C# (.NET Core 2.1), C# (.NET Core 3.1), and PHP 7.3.

timeout

Maximum duration the function can be executed. Value range: 3s-900s.

handler

Handler of the 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 entry point function is handler.

memory_size

Memory (MB) consumed by the function.

Options: 128, 256, 512, 768, 1024, 1280, 1536, 1792, 2048, 2560, 3072, 3584, and 4096.

cpu

Number of CPU millicores used by the function (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. The value is calculated as follows: Memory/128 x 100 + 200 (basic CPU millicores).

code_type

Function code type. Options:

  • inline: inline code

  • zip: ZIP file

  • jar: JAR file (mainly for Java functions)

  • obs: function code stored in an Object Storage Service (OBS) bucket

code_url

  • When code_type is set to obs, this parameter indicates the address of a function code package in OBS.

  • When code_type is set to inline, zip, or jar, this parameter is left blank.

code_filename

Function file name.

  • When code_type is set to zip or jar, this parameter is required.

  • When code_type is set to obs or inline, this parameter is not required.

code_size

Code size in bytes.

user_data

Name/Value information defined for the 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.

digest

SHA512 hash value of function code, which is used to determine whether the function is changed.

version

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

Internal identifier of a function version.

xrole

Agency used by the function. You need to create an agency on the Identity and Access Management (IAM) console. This field is mandatory when a function needs to access other services.

app_xrole

Agency used by the function app. You need to create an agency on the IAM console. This field is mandatory when a function needs to access other services.

description

Description of the function.

version_description

Description of the function version.

last_modified

Time when the function was last updated.

func_code

Function code. See Table 2.

depend_list

Dependency list.

strategy_config

Function policy configuration. See Table 3.

extend_config

Function extension configuration.

dependencies

Dependency list. See Table 5.

initializer_handler

Initializer of the function in the format of "xx.xx". It must contain a period (.).

For example, for Node.js function myfunction.initializer, the file name is myfunction.js, and the initialization function is initializer.

initializer_timeout

Maximum duration the function can be initialized. Value range: 1s-300s.

func_vpc

Virtual Private Cloud (VPC) configuration. See Table 4.

mount_config

File system configuration. See Table 6.

Table 2 func_code parameters

Parameter

Description

file

Function code. Nothing will be returned.

link

Function code link. Nothing will be returned.

Table 3 strategy_config parameter

Parameter

Description

concurrency

  • 0: The function is disabled.

  • -1: The function is enabled.

Table 4 func_vpc parameters

Parameter

Type

Mandatory

Description

vpc_name

String

-

VPC name.

vpc_id

String

Yes when func_vpc is not empty.

VPC ID.

subnet_name

String

-

Subnet name.

subnet_id

String

Yes when func_vpc is not empty.

Subnet ID.

cidr

String

-

Subnet mask.

gateway

String

-

Gateway.

Table 5 dependency parameters

Parameter

Type

Mandatory

Description

owner

String

-

Domain ID of the dependency owner.

link

String

-

URL of the dependency package on OBS.

runtime

String

-

Language of the dependency package (only used for classification purposes).

etag

String

-

MD5 value of the dependency package.

size

Int

-

Size of the dependency package.

name

String

-

Name of the dependency package.

description

String

-

Description of the dependency package.

file_name

String

-

File name of the dependency package (ZIP).

Table 6 mount_config parameters

Parameter

Type

Mandatory

Description

mount_user

mount_user

-

File system user configuration.

func_mounts

func_mounts

-

File system list.

Table 7 mount_user parameters

Parameter

Type

Mandatory

Description

user_id

Int

Yes when mount_user is not empty.

User ID, which is an integer from -1 to 65,534, excluding 0, 1000, and 1002.

user_group_id

Int

Yes when mount_user is not empty.

User group ID, which is an integer from -1 to 65,534, excluding 0, 1000, and 1002.

Table 8 func_mounts parameters

Parameter

Type

Mandatory

Description

mount_type

String

Yes when func_mounts is not empty.

Mount type. Options: ecs.

mount_resource

String

Yes when func_mounts is not empty.

ID of the mounted resource (corresponding cloud service).

mount_share_path

String

Yes when mount_type is set to ecs.

Remote mount path. Example: 192.168.0.12:/data.

local_mount_path

String

Yes when func_mounts is not empty.

Function access path.

The format of a function URN is as follows:

urn:fss:<region_id>:<project_id>:function:<package>:<function_name>[:<version>|:!<alias>]

Note

A function URN is divided into eight fields by colons. The value of region_id is included in the system configuration. You can set this parameter to the same as that in the backend. The content in the brackets ([]) is a function version or alias. If you enter an alias, add an exclamation mark (!) in front of it for easy identification.

When a function URN is used as an API parameter, you can provide it in a simplified format as follows:

  • 1 field: <function_name>. project_id is obtained from a token, package is default, and version is latest.

  • 2 fields: <package>:<function_name>. project_id is obtained from a token, and version is latest.

  • 3 fields: <project_id>:<package>:<function_name>. version is latest.

  • 4 fields: <project_id>:<package>:<function_name>:<Version or Alias>.

  • 7 fields: urn:fss:<region_id>:<project_id>:function:<package>:<function_name>. version is latest.

  • 8 fields: urn:fss:<region_id>:<project_id>:function:<package>:<function_name>:<Version or Alias>.