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Deployment Guide

This guide walks you through deploying the Fullstack AgentCore Solution Template (FAST) to AWS.

Terraform alternative: This guide covers CDK deployment. FAST also supports Terraform -- see the Terraform Deployment Guide for the Terraform deployment guide. We recommend choosing one infrastructure tool and deleting the other directory (infra-cdk/ or infra-terraform/) from your fork to keep things clean.

Prerequisites

Before deploying, ensure you have:

  • Node.js 20+ installed (see AWS guide for installing Node.js on EC2)
  • AWS CLI configured with credentials (aws configure) - see AWS CLI Configuration guide
  • AWS CDK CLI installed: npm install -g aws-cdk (see CDK Getting Started guide)
  • Python 3.11 or above+ (standard library only - no virtual environment needed for deployment)
  • Docker - Required for all deployments. See Install Docker Engine. Verify with docker ps. Alternatively, Finch can be used on Mac. See below if you have a non-ARM machine.
  • An AWS account with sufficient permissions to create:
    • S3 buckets
    • CloudFront distributions
    • Cognito User Pools
    • Amplify Hosting projects
    • Bedrock AgentCore resources
    • IAM roles and policies

Configuration

1. Update Configuration File

Edit infra-cdk/config.yaml to customize your deployment:

stack_name_base: your-project-name # Change this to your preferred stack name (max 35 chars)

admin_user_email: null # Optional: admin@example.com (auto-creates user & emails credentials)

backend:
  pattern: strands-single-agent # Available patterns: strands-single-agent, langgraph
  deployment_type: docker # Available deployment types: docker (default), zip

Important:

  • Change stack_name_base to a unique name for your project to avoid conflicts
  • Maximum length is 35 characters (due to AWS AgentCore runtime naming constraints)

Deployment Types

FAST supports two deployment types for AgentCore Runtime. Set deployment_type in infra-cdk/config.yaml:

Type Description
docker (default) Builds container image, pushes to ECR
zip Packages code via Lambda, uploads to S3

Note: Docker is required for both deployment types. The zip option only affects how the agent runtime is packaged. Other Lambda functions in the stack still use Docker for dependency bundling.

Use Docker (default) when:

  • You need native C/C++ libraries without ARM64 wheels on PyPI
  • Your deployment package exceeds 250 MB
  • You need custom OS-level dependencies
  • You want maximum compatibility

Use ZIP when:

  • You want faster iteration during development
  • Your dependencies are pure Python or have ARM64 wheels available
  • You need higher session throughput

ZIP packaging includes: The patterns/<your-pattern>/, gateway/, and tools/ directories are bundled together with dependencies from requirements.txt. This matches the COPY commands in the Docker deployment's Dockerfile.

VPC Deployment (Private Network)

By default, the AgentCore Runtime runs in PUBLIC network mode with internet access. To deploy the runtime into an existing VPC for private network isolation, set network_mode: VPC in infra-cdk/config.yaml and provide your VPC details.

What runs inside vs outside the VPC

When VPC mode is enabled, the AgentCore Runtime (your agent code) runs inside your VPC's private subnets. All network calls the agent makes are subject to VPC networking rules and reach AWS services through VPC endpoints — the agent never makes direct internet calls.

The following components run outside the VPC in AWS-managed infrastructure:

  • Gateway tool Lambdas — The agent calls the Gateway through the bedrock-agent-runtime VPC endpoint (private networking). The Gateway then invokes Lambda functions on AWS-managed infrastructure. The agent's network call stays private; only the Lambda execution happens outside the VPC.
  • Code Interpreter — The agent calls the Code Interpreter API through the bedrock-agent-runtime VPC endpoint. The sandbox execution happens in Bedrock's managed environment.
  • Bedrock model invocations — Model calls go through the bedrock-runtime VPC endpoint to Bedrock's managed infrastructure.
  • Frontend (Amplify/CloudFront) — Entirely separate, public-facing, and not part of the VPC deployment.

In short: the agent's outbound network traffic stays on private AWS networking via VPC endpoints. The services it calls (Bedrock, Gateway, Code Interpreter) may execute on infrastructure outside the VPC, but the network path from the agent to those service APIs is private.

Configuration

backend:
  pattern: strands-single-agent
  deployment_type: docker
  network_mode: VPC
  vpc:
    vpc_id: vpc-0abc1234def56789a
    subnet_ids:
      - subnet-aaaa1111bbbb2222c
      - subnet-cccc3333dddd4444e
    security_group_ids:  # Optional - a default SG is created if omitted
      - sg-0abc1234def56789a

The vpc_id and subnet_ids fields are required. The security_group_ids field is optional — if omitted, the CDK construct will create a default security group for the runtime.

Required VPC Endpoints

When deploying in VPC mode, the runtime runs in private subnets without internet access. Your VPC must have the following VPC endpoints configured so the agent can reach the AWS services it depends on:

Endpoint Service Type
com.amazonaws.{region}.bedrock-runtime Bedrock model invocation Interface
com.amazonaws.{region}.bedrock-agent-runtime AgentCore Runtime Interface
com.amazonaws.{region}.bedrock-agentcore AgentCore Identity (Token Vault) Interface
com.amazonaws.{region}.bedrock-agentcore.gateway AgentCore Gateway (MCP tools) Interface
com.amazonaws.{region}.ssm SSM Parameter Store Interface
com.amazonaws.{region}.secretsmanager Secrets Manager Interface
com.amazonaws.{region}.logs CloudWatch Logs Interface
com.amazonaws.{region}.ecr.api ECR API (Docker deployment) Interface
com.amazonaws.{region}.ecr.dkr ECR Docker (Docker deployment) Interface
com.amazonaws.{region}.s3 S3 (ZIP deployment, ECR layers) Gateway
com.amazonaws.{region}.dynamodb DynamoDB (feedback table) Gateway
com.amazonaws.{region}.xray X-Ray (OTel trace export) Interface

Replace {region} with your deployment region (e.g. us-east-1).

All interface endpoints must have private DNS enabled and must be associated with the same subnets and security groups that allow traffic from the AgentCore Runtime.

Subnet Requirements

  • Use private subnets (no internet gateway route) for proper network isolation
  • Subnets should be in at least two Availability Zones for high availability
  • Subnets must have sufficient available IP addresses for the runtime ENIs

NAT Gateway

A NAT Gateway is not required for VPC mode. The agent authenticates with the AgentCore Gateway using the Token Vault OAuth2 Credential Provider, which retrieves tokens via the AgentCore Identity API. This API is reachable through the bedrock-agent-runtime VPC endpoint, so no outbound internet access is needed. All AWS service traffic (Bedrock, SSM, Secrets Manager, etc.) stays internal via VPC endpoints.

Note: If you add custom tools or integrations that make outbound internet calls, you will need a NAT Gateway in a public subnet with a 0.0.0.0/0 route from your private subnets.

Security Group Configuration

The CDK stack auto-creates a security group for the AgentCore Runtime. This same security group is typically applied to your VPC endpoints. You must add a self-referencing inbound rule to allow the runtime to reach the endpoints:

  • Protocol: TCP, Port: 443, Source: the security group itself

Deployment Steps

TL;DR version

Here are the commands to deploy backend and frontend:

cd infra-cdk
npm install
cdk bootstrap # Once ever
cdk deploy
cd ..
python scripts/deploy-frontend.py

Deploy Without Local Tooling (via CodeBuild)

If you don't have Node.js, Docker, or CDK installed locally, you can deploy entirely in the cloud using a temporary CodeBuild project. Requires only Python 3.8+ and AWS CLI:

python scripts/deploy-with-codebuild.py

See scripts/README.md for details and required IAM permissions.

1. Install Dependencies

Install infrastructure dependencies:

cd infra-cdk
npm install

Note: Frontend dependencies are automatically installed during deployment via Docker bundling, so no separate frontend npm install is required.

2. Bootstrap CDK (First Time Only)

If this is your first time using CDK in this AWS account/region:

cdk bootstrap

3. Deploy backend with CDK

Build and deploy the complete stack:

cdk deploy

The deployment will:

  1. Create a Cognito User Pool for authentication
  2. Build and push the agent container to ECR
  3. Create the AgentCore runtime
  4. Set up CloudFront distribution for the frontend

Note: The deployment takes approximately 5-10 minutes due to container building and AgentCore setup.

4. Deploy frontend

# From root directory
python scripts/deploy-frontend.py

This script automatically:

  • Generates fresh aws-exports.json from CDK stack outputs (see below for more information about aws-exports.json)
  • Installs/updates npm dependencies if needed
  • Builds the frontend
  • Deploys to AWS Amplify Hosting

You will see the URL for application in the script's output, which will look similar to this:

ℹ App URL: https://main.d123abc456def7.amplifyapp.com

5. Create a Cognito User (if necessary)

If you provided admin_user_email in config:

  • Check your email for temporary password
  • Sign in and change password on first login

If you didn't provide email:

  1. Go to the AWS Cognito Console
  2. Find your User Pool (named {stack_name_base}-user-pool)
  3. Click on the User Pool
  4. Go to "Users" tab
  5. Click "Create user"
  6. Fill in the user details:
    • Email: Your email address
    • Temporary password: Create a temporary password
    • Mark email as verified: Check this box
  7. Click "Create user"

6. Access the Application

  1. Open the Amplify Hosting URL in your browser
  2. Sign in with the Cognito user you created
  3. You'll be prompted to change your temporary password on first login

Post-Deployment

Updating the Application

To update the frontend code:

# From root directory
python scripts/deploy-frontend.py

To update the backend agent:

Docker deployment:

cd infra-cdk
cdk deploy --all

Monitoring and Logs

  • Frontend logs: Check CloudFront access logs
  • Backend logs: Check CloudWatch logs for the AgentCore runtime
  • Build logs: Check CodeBuild project logs for container builds

Cleanup

To remove all resources:

cd infra-cdk
cdk destroy --force

Warning: This will delete all data including S3 buckets created during deployment and ECR images.

Troubleshooting

Common Issues

  1. cdk deploy fails with Docker errors

    • Ensure Docker is installed and the daemon is running: docker ps
    • On Mac, open Docker Desktop or start Finch: finch vm start
    • On Linux: sudo systemctl start docker

  2. "Architecture incompatible" or "exec format error" during Docker build

    • This occurs when deploying from a non-ARM machine without cross-platform build setup
    • Follow the "Docker Cross-Platform Build Setup" instructions in the Prerequisites section
    • Ensure you've installed QEMU emulation: docker run --privileged --rm tonistiigi/binfmt --install all
    • Verify ARM64 support: docker buildx ls should show linux/arm64 in platforms

  3. "Agent Runtime ARN not configured"

    • Ensure the backend stack deployed successfully
    • Check that SSM parameters were created correctly

  4. Authentication errors

    • Verify you created a Cognito user
    • Check that the user's email is verified

  5. Build failures

    • Check CodeBuild logs in the AWS Console
    • Ensure your agent code in patterns/ is valid

  6. Permission errors

    • Verify your AWS credentials have sufficient permissions
    • Check IAM roles created by the stack

Getting Help

  • Check CloudWatch logs for detailed error messages
  • Review the CDK deployment output for any warnings
  • Ensure all prerequisites are met

Security Considerations

  • The Cognito User Pool is configured with strong password policies
  • All communication uses HTTPS via CloudFront
  • AgentCore runtime uses JWT authentication
  • IAM roles follow least-privilege principles

For production deployments, consider:

  • Enabling MFA on Cognito users
  • Setting up custom domains with your own certificates
  • Configuring additional monitoring and alerting
  • Implementing backup strategies for any persistent data

Docker Cross-Platform Build Setup (Required for non-ARM machines)

Important: BedrockAgentCore Runtime only supports ARM64 architecture. If you're deploying from a non-ARM machine (x86_64/amd64), you need to enable Docker's cross-platform building capabilities.

Check your machine architecture:

uname -m

If the output is x86_64 (not aarch64 or arm64), run these commands:

  1. Install QEMU for ARM64 emulation:

    docker run --privileged --rm tonistiigi/binfmt --install all

  2. Enable Docker buildx and create a multi-platform builder:

    docker buildx create --use --name multiarch --driver docker-container
docker buildx inspect --bootstrap

  3. Verify ARM64 support is available:

    docker buildx ls

    You should see linux/arm64 in the platforms list.

Note: This setup is only required once per machine. The CDK deployment will automatically use these capabilities to build ARM64 containers.

Understanding aws-exports.json

The aws-exports.json file is a critical configuration file that enables the React frontend to communicate with AWS Cognito for authentication. This file is automatically generated during frontend deployment and contains the necessary configuration parameters for Cognito authentication.

What is aws-exports.json?

The aws-exports.json file contains authentication configuration that the React application reads to properly configure Cognito Authentication. It's created automatically by the deployment script and placed in frontend/public/aws-exports.json.

Why is it necessary?

This configuration file is essential because:

  • It provides the React application with the correct Cognito User Pool and Client IDs
  • It specifies the authentication endpoints and redirect URIs
  • It configures the authentication flow parameters
  • Without this file, Cognito authentication will not work

How is it created?

The file is automatically generated by deploy-frontend.py which:

  1. Extracts configuration from your deployed CDK stack outputs
  2. Automatically detects the AWS region from the CloudFormation stack ARN
  3. Retrieves the required values: CognitoClientId, CognitoUserPoolId, and AmplifyUrl
  4. Generates the configuration file with the following structure:
{
  "authority": "https://cognito-idp.region.amazonaws.com/user-pool-id",
  "client_id": "your-client-id",
  "redirect_uri": "https://your-amplify-url",
  "post_logout_redirect_uri": "https://your-amplify-url",
  "response_type": "code",
  "scope": "email openid profile",
  "automaticSilentRenew": true
}

Important: You should not manually edit this file as it's regenerated on each deployment. If authentication isn't working, redeploy the frontend to ensure you have the latest configuration.