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Function Compute:UpdateFunctionInput

Last Updated:Jun 26, 2026

Parameter

Type

Description

Example

object

The function update request parameters.

code InputCodeLocation

The ZIP package of the function code. Specify either code or customContainerConfig.

cpu

number

The CPU specification of the function. Unit: vCPU. The value must be a multiple of 0.05 vCPU.

1

customContainerConfig CustomContainerConfig

The configuration of the custom container runtime. After this parameter is configured, the function can use a custom container image for execution. Specify either code or customContainerConfig.

customDNS CustomDNS

The custom DNS configuration.

customRuntimeConfig CustomRuntimeConfig

The custom runtime configuration.

description

string

The description of the function.

my function

diskSize

integer

The disk specification of the function. Unit: MB. Valid values: 512 and 10240.

512

environmentVariables

object

The environment variables of the function. You can access the configured environment variables in the runtime environment.

string

value1

gpuConfig GPUConfig

The GPU configuration of the function.

handler

string

The function entry point. The specific format depends on the runtime.

index.handler

instanceConcurrency

integer

The maximum concurrency of an instance.

1

instanceLifecycleConfig InstanceLifecycleConfig

The instance lifecycle hook configuration.

internetAccess

boolean

Specifies whether to allow access to the Internet.

true

layers

array

The list of layers. Multiple layers are merged in descending order of array index. Files in a layer with a smaller index overwrite files with the same name in a layer with a larger index.

string

层 ARN。

acs:fc:cn-beijing:186824xxxxxx:layers/fc_layer/versions/1

logConfig LogConfig

The log configuration. Logs generated by the function are written to the configured Logstore.

memorySize

integer

The memory specification of the function. Unit: MB. The value must be a multiple of 64 MB. The memory specification varies based on the function instance type.

512

nasConfig NASConfig

The NAS configuration. After this parameter is configured, the function can access the specified NAS resources.

ossMountConfig OSSMountConfig

The OSS mount configuration.

role

string

The Alibaba Cloud Resource Access Management (RAM) role that grants Function Compute the required permissions. Scenarios include: 1. Sending logs generated by the function to your Logstore. 2. Generating temporary access tokens for the function to access other cloud resources during the execute procedure.

acs:ram::188077086902****:role/fc-test

runtime

string

The runtime environment of the function.

nodejs14

timeout

integer

The timeout period for function execution. Unit: seconds. Minimum value: 1. Default value: 3. The function is terminated if it exceeds this time limit.

60

tracingConfig TracingConfig

The Tracing Analysis configuration. After Function Compute is integrated with Tracing Analysis, you can record the time consumed by requests in Function Compute, view the cold start time of functions, and record the time consumed by internal function operations.

vpcConfig VPCConfig

The VPC configuration. After this parameter is configured, the function can access the specified VPC resources.

disableOndemand

boolean

Specifies whether to disable the creation of on-demand instances. If this feature is enabled, on-demand instances are not created, and only provisioned instances can be used.

sessionAffinity

string

The affinity policy for Function Compute invocation requests. To implement request affinity for the MCP SSE protocol, set this parameter to MCP_SSE. To use cookie-based affinity, set this parameter to GENERATED_COOKIE. To use header-based affinity, set this parameter to HEADER_FIELD. If this parameter is not set or is set to NONE, no affinity is applied, and requests are routed based on the default scheduling policy of Function Compute.

MCP_SSE

enableLongLiving

boolean

Specifies whether to allow provisioned instances of GPU functions to be long-running. When this feature is enabled, function instances that are created are not injected with STS tokens.

instanceIsolationMode

string

The instance isolation mode.

sessionAffinityConfig

string

The affinity configuration that corresponds to the sessionAffinity type. For MCP_SSE affinity, configure MCPSSESessionAffinityConfig. For cookie-based affinity, configure CookieSessionAffinityConfig. For header field affinity, configure HeaderFieldSessionAffinityConfig.

{\"sseEndpointPath\":\"/sse\", \"sessionConcurrencyPerInstance\":20}

idleTimeout

integer

The deferred release time of the instance.

100

disableInjectCredentials

string

Specifies whether to disable STS token injection. Valid values:

  • None: STS tokens are injected in all methods.

  • Env: STS tokens are not injected through environment variables.

  • Request: STS tokens are not injected through requests, including context and headers.

  • All: STS tokens are not injected in any method.

Env

polarFsConfig PolarFsConfig

The PolarFs configuration. After this parameter is configured, the function can access the specified PolarFs resources.

juiceFsConfig JuiceFsConfig

The JuiceFS configuration. This allows the function to access specified JuiceFS resources.

microSandboxConfig MicroSandboxConfig