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Bedrock Agentcore Control  >  Structures  >  VpcConfig

VpcConfig

Structure Class

VpcConfig dataclass

VpcConfig for the Agent.

Attributes

require_service_s3_endpoint class-attribute instance-attribute
require_service_s3_endpoint: bool | None = None
Note

This field applies only to Agent Runtimes. It is not applicable to Browsers or Code Interpreters.

Controls whether a service-managed Amazon S3 gateway endpoint is provisioned in the VPC network topology for the agent runtime. This gateway is used by Amazon Bedrock AgentCore Runtime to download code and container images during agent startup.

Starting May 5, 2026, Amazon Bedrock AgentCore Runtime is gradually rolling out a change to how network isolation is configured for VPC mode agents. Agent runtimes created on or after this rollout will no longer include the service-managed Amazon S3 gateway. Instead, all network access, including to Amazon S3, is governed exclusively by your VPC configuration. This field cannot be set on agent runtimes created after the rollout. Passing this field in an UpdateAgentRuntime request for these agent runtimes returns a ValidationException.

Agent runtimes created before the rollout are not affected and continue to operate with the service-managed Amazon S3 gateway. To enforce full VPC network isolation on these existing agent runtimes, set this field to false via the UpdateAgentRuntime API. Before opting out, ensure your VPC provides the Amazon S3 access required for agent startup. If this field is not specified or is set to true, the service-managed Amazon S3 gateway remains provisioned.

This field is only supported in the UpdateAgentRuntime API for pre-rollout agent runtimes. Passing this field in a CreateAgentRuntime request returns a ValidationException.

security_groups instance-attribute
security_groups: list[str]

The security groups associated with the VPC configuration.

subnets instance-attribute
subnets: list[str]

The subnets associated with the VPC configuration.