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AWS VPC Lattice: The Future of Cross-VPC Service Networking

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AWS VPC Lattice: An Overview

Modern cloud applications often span multiple VPCs and AWS accounts, making service-to-service communication complex and error-prone. AWS VPC Lattice offers a fully managed service network that abstracts this complexity by enabling you to securely connect, route, and control traffic between services across different VPCs and accounts — all from a single pane of glass.

 

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What Problems Does AWS VPC Lattice Solve?

  • Simplifies cross-VPC and cross-account service communication without managing VPC peering or transit gateways.
  • Provides a central control plane for service discovery, routing, and access policies.
  • Offers built-in security with IAM-based authorization and encryption.
  • Enhances observability through seamless integration with CloudWatch and CloudTrail.

Key Features You Can Use from the AWS Console

  • Create a Service Network: A logical boundary to group services across accounts and VPCs.
  • Add Services: Register services (backends) like EC2, ECS, or Lambda that you want to expose.
  • Configure Listeners: Define how your service accepts traffic (protocols and ports).
  • Set Access Policies: Control who or what can access your services using IAM-based permissions.
  • Monitor Traffic: View service metrics and logs integrated with CloudWatch and CloudTrail.

Step-by-Step Console Setup for AWS VPC Lattice

Step 1: Create a Service Network

  • Login to AWS Console > Search for VPC Lattice > Click Create service network.
  • Give it a name and optionally add description/tags.
  • Add VPCs and AWS accounts you want to associate with this network.
  • Click Create.

Step 2: Create a Service

  • Within the service network, click Create service.
  • Name your service and select the VPC Lattice service network created earlier.
  • Choose the service type (e.g., Private for internal services).
  • Click Create service.

Step 3: Add Service Targets

  • Select your newly created service and click Add target group.
  • Choose target type: EC2 instances, ECS services, Lambda functions, or IP addresses.
  • Select the targets you want to register.
  • Define health check protocol and path (optional).
  • Click Add target group.

Step 4: Configure Listeners

  • Select the service, go to Listeners tab, click Create listener.
  • Define the protocol (HTTP/HTTPS) and port the service listens on.
  • Associate the listener with a target group created in Step 3.
  • Click Create listener.

Step 5: Define Access Policies

  • Navigate to the Access control tab under the service.
  • Click Edit access policies.
  • Use the policy editor to specify which IAM principals (users, roles) can invoke the service.
  • Save the policy.

Step 6: Monitor and Troubleshoot

  • Use CloudWatch Console to view logs and metrics for your service network.
  • Enable CloudTrail to audit API calls related to your VPC Lattice setup.

 

Best Practices for Using AWS VPC Lattice

  • Use IAM Policies for Fine-Grained Access: Enforce least privilege by limiting which identities can access each service.
  • Deploy Targets Across Multiple AZs: Improve resilience by spreading your targets across Availability Zones.
  • Enable Health Checks: Keep your service endpoints healthy and traffic routing efficient.
  • Centralize Your Service Networks: For organizations with multiple AWS accounts, centralize service networks for simpler management.
  • Automate with Infrastructure as Code: Once familiar, use CloudFormation or Terraform to manage your VPC Lattice setup programmatically.
  • Monitor Logs and Metrics: Proactively detect anomalies or performance issues using CloudWatch.

Conclusion

AWS VPC Lattice brings the power of service networking to your fingertips through an intuitive console experience. By abstracting away, the complexities of multi-VPC and multi-account communication, it empowers you to build scalable, secure, and observable service architectures faster. Leveraging VPC Lattice’s console-driven workflow allows developers and network admins alike to configure, control, and monitor service connectivity efficiently.

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About CloudThat

CloudThat is a leading provider of Cloud Training and Consulting services with a global presence in India, the USA, Asia, Europe, and Africa. Specializing in AWS, Microsoft Azure, GCP, VMware, Databricks, and more, the company serves mid-market and enterprise clients, offering comprehensive expertise in Cloud Migration, Data Platforms, DevOps, IoT, AI/ML, and more.

CloudThat is the first Indian Company to win the prestigious Microsoft Partner 2024 Award and is recognized as a top-tier partner with AWS and Microsoft, including the prestigious ‘Think Big’ partner award from AWS and the Microsoft Superstars FY 2023 award in Asia & India. Having trained 650k+ professionals in 500+ cloud certifications and completed 300+ consulting projects globally, CloudThat is an official AWS Advanced Consulting Partner, Microsoft Gold Partner, AWS Training PartnerAWS Migration PartnerAWS Data and Analytics PartnerAWS DevOps Competency PartnerAWS GenAI Competency PartnerAmazon QuickSight Service Delivery PartnerAmazon EKS Service Delivery Partner AWS Microsoft Workload PartnersAmazon EC2 Service Delivery PartnerAmazon ECS Service Delivery PartnerAWS Glue Service Delivery PartnerAmazon Redshift Service Delivery PartnerAWS Control Tower Service Delivery PartnerAWS WAF Service Delivery PartnerAmazon CloudFrontAmazon OpenSearchAWS DMSAWS Systems ManagerAmazon RDS, and many more.

WRITTEN BY Abhijit Dilip Powar

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