Add Amazon Bedrock AgentCore Runtime deployment example

[sundargthb]

Adds bedrock-agentcore/ with deployment configuration and example code for
running LiveKit agents on Amazon Bedrock AgentCore Runtime — a serverless
container hosting service with auto-scaling, session isolation, and
CloudWatch observability.

What's included

• README.md — Full setup guide (VPC, TURN, build, deploy, test locally)
• agent.py — Standard LiveKit voice agent with TURN configuration
• kvs_turn.py — KVS Managed TURN helper (GetIceServerConfig API)
• deploy.py — boto3 deployment script
• Dockerfile — ARM64 container (required by AgentCore)
• .env.example — Environment variable template
• Architecture diagrams (simple + detailed)

Why this example includes agent-side code

Unlike aws-ecs/ or kubernetes/, this example includes agent.py and
kvs_turn.py in addition to deployment configuration. AgentCore runs
agents in microVMs inside a VPC behind a NAT Gateway, which requires
TURN server configuration for WebRTC NAT traversal — a requirement that
doesn't apply to ECS or Kubernetes where the agent has direct network
access. It also includes its own Dockerfile because AgentCore requires
linux/arm64 (the shared python-agent-example-app/Dockerfile targets
amd64).

TURN options

Two TURN configurations are supported:

• KVS Managed TURN (recommended) — AWS-native, auto-rotating
  credentials via GetIceServerConfig API
• Third-party TURN — Cloudflare, Twilio, or metered.ca via env vars

Validated

Tested with a pipeline-mode agent (Transcribe STT + Bedrock Nova Lite
LLM + Polly TTS) deployed to AgentCore Runtime in VPC mode, connecting
to LiveKit Cloud via both KVS TURN and Cloudflare TURN.

Related

• GitHub issue requesting docs cross-links on /deploy/custom/deployments/
  and /agents/integrations/aws/