UpdateFunction - Function Compute - Alibaba Cloud Documentation Center

Updates the configuration of a function.

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Test

RAM authorization

The table below describes the authorization required to call this API. You can define it in a Resource Access Management (RAM) policy. The table's columns are detailed below:

Action: The actions can be used in the Action element of RAM permission policy statements to grant permissions to perform the operation.
API: The API that you can call to perform the action.
Access level: The predefined level of access granted for each API. Valid values: create, list, get, update, and delete.
Resource type: The type of the resource that supports authorization to perform the action. It indicates if the action supports resource-level permission. The specified resource must be compatible with the action. Otherwise, the policy will be ineffective.
- For APIs with resource-level permissions, required resource types are marked with an asterisk (*). Specify the corresponding Alibaba Cloud Resource Name (ARN) in the Resource element of the policy.
- For APIs without resource-level permissions, it is shown as All Resources. Use an asterisk (*) in the Resource element of the policy.
Condition key: The condition keys defined by the service. The key allows for granular control, applying to either actions alone or actions associated with specific resources. In addition to service-specific condition keys, Alibaba Cloud provides a set of common condition keys applicable across all RAM-supported services.
Dependent action: The dependent actions required to run the action. To complete the action, the RAM user or the RAM role must have the permissions to perform all dependent actions.

Action

Access level

Resource type

Condition key

Dependent action

fc:UpdateFunction

update

*Function

acs:fc:{#regionId}:{#accountId}:services/{#ServiceName}/functions/{#FunctionName}

None

Request syntax

PUT /2021-04-06/services/{serviceName}/functions/{functionName} HTTP/1.1

Path Parameters

Parameter	Type	Required	Description	Example
serviceName	string	Yes	The name of the service.	demoService
functionName	string	Yes	The name of the function.	demoFunction

Request parameters

Parameter	Type	Required	Description	Example
If-Match	string	No	Used to ensure that the resource to be modified is the same as the expected resource. The value is obtained from the response of the CreateFunction, GetFunction, or UpdateFunction operation.	e19d5cd5af0378da05f63f891c7467af
functionUpdateFields	object	No	The function update struct.
code	Code	No	The Code struct. You can use one of the following two methods to provide the function code package. You must use one and only one of these methods in a request: Specify ossBucketName and ossObjectName that store the code package. Specify zipFile as the Base64-encoded content of the ZIP package.
customContainerConfig	CustomContainerConfig	No	The configuration of the Custom Container runtime. After you configure this parameter, the function can be executed using a custom container image.
layers	array	No	A list of layers. Note Multiple layers are merged in descending order of the array index. The content of a layer with a smaller index overwrites the file with the same name in a layer with a larger index.
	string	No	The name of the layer resource.	layername
description	string	No	The description of the function.	test desc
environmentVariables	object	No	The environment variables that you want to configure for the function. You can obtain the values of the environment variables in the function. For more information, see Environment variables.
	string	No	The environment variable configuration.	{"key":"value"}
handler	string	No	The entry point for the function execution. The format varies based on the programming language. For more information, see Handler.	index.handler
memorySize	integer	No	The memory size of the function in MB. The value must be a multiple of 64 MB. The memory size varies by instance type. For more information, see Instance types.	512
runtime	string	No	The runtime environment of the function. Valid values: nodejs20, nodejs18, nodejs16, nodejs14, nodejs12, nodejs10, nodejs8, nodejs6, nodejs4.4, python3.10, python3.9, python3, python2.7, java11, java8, go1, php7.2, dotnetcore3.1, dotnetcore2.1, custom.debian10, custom, and custom-container. For more information, see Supported function runtimes.	python3.9
timeout	integer	No	The timeout period for the function to run, in seconds. Minimum value: 1. Default value: 3. The function execution is terminated if it exceeds this time limit.	60
initializationTimeout	integer	No	The timeout period for the initializer function to run, in seconds. Minimum value: 1. Default value: 3. The initializer function is terminated if its execution exceeds this time limit.	60
initializer	string	No	The entry point for the initializer function. The format varies based on the programming language. For more information, see Handler.	index.handler
caPort	integer	No	The listening port of the HTTP server for a custom runtime or a custom container runtime.	9000
InstanceConcurrency	integer	No	The maximum concurrency of the instance.	10
instanceSoftConcurrency	integer	No	The soft concurrency of the instance. This is used for graceful scale-out. When the number of concurrent requests on an instance exceeds the soft concurrency, the instance scales out. For example, if your instance starts slowly, you can set an appropriate soft concurrency to start instances in advance. The value must be less than or equal to instanceConcurrency.	5
instanceType	string	No	The instance type of the function. Valid values: e1: elastic instance. c1: performance instance. fc.gpu.tesla.1: GPU-accelerated instance of the Tesla series. fc.gpu.ampere.1: GPU-accelerated instance of the Ampere series. fc.gpu.ada.1: GPU-accelerated instance of the Ada series. g1: same as fc.gpu.tesla.1.	e1
instanceLifecycleConfig	InstanceLifecycleConfig	No	The instance lifecycle configuration.
customDNS	CustomDNS	No	The custom DNS configuration of the function.
customRuntimeConfig	CustomRuntimeConfig	No	The detailed configuration of a Custom Runtime function.
customHealthCheckConfig	CustomHealthCheckConfig	No	The custom health check configuration of the function. This applies only to Custom Runtime and Custom Container.
cpu	number	No	The CPU specification of the function in vCPUs. The value must be a multiple of 0.05 vCPU.	1.5
diskSize	integer	No	The disk size of the function in MB. Valid values: 512 MB and 10240 MB.	512
gpuMemorySize	integer	No	The GPU memory size of the function in MB. The value must be a multiple of 1024 MB.	2048
X-Fc-Account-Id	string	No	The ID of your Alibaba Cloud account.	188077086902****
X-Fc-Code-Checksum	string	No	The CRC-64 value of the function code package.	1506052139770049xxxx
X-Fc-Date	string	No	The start date of the function call. The format is EEE,d MMM yyyy HH:mm:ss GMT.	Wed, 11 May 2022 09:00:00 GMT
X-Fc-Trace-Id	string	No	The ID used to call the function. It corresponds to the `requestId` parameter in the response.	test-trace-id

Response elements

Element	Type	Description	Example
	object	The response parameters for updating the function.
codeChecksum	string	The CRC-64 value of the function code package.	5434025278388143772
codeSize	integer	The size of the function code package returned by the system, in bytes.	1024
createdTime	string	The time when the function was created.	2016-08-15T15:00:00.000+0000
customContainerConfig	CustomContainerConfig	The configuration of the Custom Container runtime. After you configure this parameter, the function can be executed using a custom container image.
layers	array	A list of layers. Note Multiple layers are merged in descending order of the array index. The content of a layer with a smaller index overwrites the file with the same name in a layer with a larger index.
	string	The name of the layer resource.	md5#layername#version
description	string	The description of the function.	This is a demo hello world function
environmentVariables	object	The environment variables that are configured for the function. You can obtain the values of the environment variables in the function. For more information, see Environment variables.
	string	The environment variable configuration.	{"key":"value"}
functionId	string	The unique ID that the system generates for each function.	2d28e0e9-9ba5-4eed-8b1a-d3d9cd24****
functionName	string	The name of the function.	demo-function
handler	string	The entry point of the function.	index.handler
lastModifiedTime	string	The time when the function was last modified.	2016-08-15T17:00:00.000+0000
memorySize	integer	The memory size of the function in MB.	512
runtime	string	The runtime environment of the function. Valid values: nodejs20, nodejs18, nodejs16, nodejs14, nodejs12, nodejs10, nodejs8, nodejs6, nodejs4.4, python3.10, python3.9, python3, python2.7, java11, java8, go1, php7.2, dotnetcore3.1, dotnetcore2.1, custom.debian10, custom, and custom-container. For more information, see Supported function runtimes.	python3.9
timeout	integer	The timeout period for the function to run, in seconds.	10
initializationTimeout	integer	The timeout period for the initializer function to run, in seconds. Minimum value: 1. Default value: 3. The initializer function is terminated if its execution exceeds this time limit.	60
initializer	string	The entry point for the initializer function. The format varies based on the programming language.	index.handler
caPort	integer	The listening port of the HTTP server for a Custom Runtime or Custom Container runtime.	9000
instanceType	string	The instance type of the function. Valid values: e1: elastic instance. c1: performance instance. fc.gpu.tesla.1: GPU-accelerated instance of the Tesla series. fc.gpu.ampere.1: GPU-accelerated instance of the Ampere series. fc.gpu.ada.1: GPU-accelerated instance of the Ada series. g1: same as fc.gpu.tesla.1.	e1
instanceSoftConcurrency	integer	The soft concurrency of the instance. This is used for graceful scale-out. When the number of concurrent requests on an instance exceeds the soft concurrency, the instance scales out. For example, if your instance starts slowly, you can set an appropriate soft concurrency to start instances in advance. The value must be less than or equal to instanceConcurrency.	5
instanceLifecycleConfig	InstanceLifecycleConfig	The instance lifecycle configuration.
customDNS	CustomDNS	The custom DNS configuration of the function.
customRuntimeConfig	CustomRuntimeConfig	The detailed configuration of a Custom Runtime function.
customHealthCheckConfig	CustomHealthCheckConfig	The custom health check configuration of the function. This applies only to Custom Runtime and Custom Container.
cpu	number	The CPU specification of the function in vCPUs. The value must be a multiple of 0.05 vCPU.	1.5
diskSize	integer	The disk size of the function in MB. Valid values: 512 MB and 10240 MB.	512
instanceConcurrency	integer	The concurrency of a single instance.	10
gpuMemorySize	integer	The GPU memory size of the function in MB. The value must be a multiple of 1024 MB.	2048
layersArnV2	array	The list of layer ARNs.
	string	The Alibaba Cloud Resource Name (ARN) of the layer.	acs:fc:cn-hangzhou:official:layers/Python310/versions/2

Examples

Success response

JSON format

{
  "codeChecksum": "5434025278388143772",
  "codeSize": 1024,
  "createdTime": "2016-08-15T15:00:00.000+0000",
  "customContainerConfig": {
    "args": "[\"-arg1\", \"value1\"]",
    "command": "[\"/code/myserver\"]",
    "image": "registry-vpc.cn-hangzhou.aliyuncs.com/fc-demo/helloworld:v1beta1",
    "accelerationType": "Default",
    "instanceID": "cri-xxxxxxxxxx",
    "webServerMode": true
  },
  "layers": [
    "md5#layername#version"
  ],
  "description": "This is a demo hello world function",
  "environmentVariables": {
    "key": "{\"key\":\"value\"}"
  },
  "functionId": "2d28e0e9-9ba5-4eed-8b1a-d3d9cd24****",
  "functionName": "demo-function",
  "handler": "index.handler",
  "lastModifiedTime": "2016-08-15T17:00:00.000+0000",
  "memorySize": 512,
  "runtime": "python3.9",
  "timeout": 10,
  "initializationTimeout": 60,
  "initializer": "index.handler",
  "caPort": 9000,
  "instanceType": "e1",
  "instanceSoftConcurrency": 5,
  "instanceLifecycleConfig": {
    "preFreeze": {
      "handler": "index.preStop",
      "timeout": 10
    },
    "preStop": {
      "handler": "index.preStop",
      "timeout": 10
    }
  },
  "customDNS": {
    "nameServers": [
      "8.8.x.x"
    ],
    "searches": [
      "ns1.svc.cluster-domain.example"
    ],
    "dnsOptions": [
      {
        "name": "ndots",
        "value": "2"
      }
    ]
  },
  "customRuntimeConfig": {
    "command": [
      "/code/myBootstrap"
    ],
    "args": [
      "args1"
    ]
  },
  "customHealthCheckConfig": {
    "httpGetUrl": "/ready",
    "initialDelaySeconds": 1,
    "periodSeconds": 1,
    "timeoutSeconds": 2,
    "failureThreshold": 1,
    "successThreshold": 2
  },
  "cpu": 1.5,
  "diskSize": 512,
  "instanceConcurrency": 10,
  "gpuMemorySize": 2048,
  "layersArnV2": [
    "acs:fc:cn-hangzhou:official:layers/Python310/versions/2"
  ]
}

Error codes

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.