New serverless pattern - agentcore-opensearch-serverless-nextgen-cdk

[NithinChandranR-AWS]

Description

Deploys an AI agent on Amazon Bedrock AgentCore Runtime that uses an Amazon OpenSearch Serverless NextGen collection as a search tool. The agent receives natural language queries and searches the OpenSearch collection using the opensearch-py SDK.

Architecture

User -> AgentCore Runtime (Strands Agent) -> OpenSearch Serverless NextGen (SEARCH collection)

Key Features

• First AgentCore + OpenSearch Serverless combo pattern in this repo
• OpenSearch Serverless NextGen collection group (scale-to-zero)
• AgentCore Runtime with ARM64 container (Python Strands agent)
• IAM role with inline policies (atomic permissions for AgentCore validation)
• Encryption, network, and data access policies for OpenSearch Serverless
• `@tool` decorator for natural language search via opensearch-py

Framework / Language

• AWS CDK (TypeScript)
• Agent: Python 3.12 (Strands Agents + opensearch-py)

Testing

• CDK synth verified (9 CloudFormation resources)
• Deployed to AWS: AgentCore Runtime READY, OpenSearch collection ACTIVE
• ARM64 image built via AWS CodeBuild and pushed to ECR
• IAM: least-privilege with inline policies for atomic attachment"