UpdateFunctionConfigurationRequest

A dead-letter queue configuration that specifies the queue or topic where Lambda sends asynchronous events when they fail processing. For more information, see Dead-letter queues.

A description of the function.

Environment variables that are accessible from function code during execution.

The size of the function's /tmp directory in MB. The default value is 512, but can be any whole number between 512 and 10,240 MB.

Connection settings for an Amazon EFS file system.

The name of the Lambda function.

Name formats

• Function name – my-function.
• Function ARN – arn:aws:lambda:us-west-2:123456789012:function:my-function.
• Partial ARN – 123456789012:function:my-function.

The length constraint applies only to the full ARN. If you specify only the function name, it is limited to 64 characters in length.

The name of the method within your code that Lambda calls to run your function. Handler is required if the deployment package is a .zip file archive. The format includes the file name. It can also include namespaces and other qualifiers, depending on the runtime. For more information, see Lambda programming model.

Container image configuration values that override the values in the container image Docker file.

The ARN of the Key Management Service (KMS) key that's used to encrypt your function's environment variables. If it's not provided, Lambda uses a default service key.

A list of function layers to add to the function's execution environment. Specify each layer by its ARN, including the version.

The amount of memory available to the function at runtime. Increasing the function memory also increases its CPU allocation. The default value is 128 MB. The value can be any multiple of 1 MB.

Update the function only if the revision ID matches the ID that's specified. Use this option to avoid modifying a function that has changed since you last read it.

The Amazon Resource Name (ARN) of the function's execution role.

The identifier of the function's runtime. Runtime is required if the deployment package is a .zip file archive.

The function's SnapStart setting.

The amount of time (in seconds) that Lambda allows a function to run before stopping it. The default is 3 seconds. The maximum allowed value is 900 seconds. For more information, see Lambda execution environment.

Set Mode to Active to sample and trace a subset of incoming requests with X-Ray.

For network connectivity to Amazon Web Services resources in a VPC, specify a list of security groups and subnets in the VPC. When you connect a function to a VPC, it can access resources and the internet only through that VPC. For more information, see Configuring a Lambda function to access resources in a VPC.