fix(labs/module5): DynamoDB table config keys missing from SSM parameter store

[ManojRamani]

Problem

The notebook labs/module5/notebooks/2_llm_gateway.ipynb (cell 4) expects the following keys in the SSM parameter /agentic-platform/config/agentcore-dev:

• DYNAMODB_USAGE_LOGS_TABLE
• DYNAMODB_USAGE_PLANS_TABLE
• REDIS_HOST
• REDIS_PORT
• REDIS_PASSWORD_SECRET_ARN

However, the Terraform platform-agentcore stack does not include DynamoDB table provisioning or their names in the configuration_sections passed to the parameter store module.

Error

KeyError: 'DYNAMODB_USAGE_LOGS_TABLE'

Root Cause

The DynamoDB tables for the LLM gateway usage plans/logs are not provisioned by Terraform. They appear to be created at application deployment time (deploy/deploy-application.sh llm-gateway --build), but their table names are never written back to the SSM parameter store config.

The notebook assumes all config is available in SSM after the infrastructure stack is deployed, but the DynamoDB resources are a gap between infrastructure and application deployment.

Affected Files

• labs/module5/notebooks/2_llm_gateway.ipynb (cell 4) — expects DYNAMODB_USAGE_LOGS_TABLE and DYNAMODB_USAGE_PLANS_TABLE
• infrastructure/stacks/platform-agentcore/main.tf — configuration_sections does not include DynamoDB table names

Expected Fix

Either:

1. Add DynamoDB table provisioning to the Terraform stack and include table names in configuration_sections
2. Or add a prerequisite note in the notebook stating the LLM gateway must be deployed first (deploy/deploy-application.sh llm-gateway --build) before this cell will work
3. Or wrap the config lookups in a try/except with a helpful error message pointing to the deployment step

Related

• fix(labs/module5): SSM parameter name mismatch in 2_llm_gateway.ipynb #76 — SSM parameter name mismatch (fixed in fix(labs/module5): correct SSM parameter name and add bastion read policy #77)