AWS VPC Lattice is a networking service provided by Amazon Web Services (AWS) that simplifies how you connect and manage different services across multiple Virtual Private Clouds (VPCs) and AWS accounts.

What is AWS VPC Lattice?

In simple terms, AWS VPC Lattice helps you connect multiple services (like applications or microservices) easily without dealing with complex networking details. It provides a secure and efficient way to communicate between services across different VPCs.

Why Use AWS VPC Lattice?

• Simplified Networking: Avoid complex network setups. You don’t need deep networking expertise to connect services.
• Service Discovery: Automatically find and connect to services without manual configurations.
• Security: Built-in security controls allow you to define clearly which services can communicate.
• Observability: Provides monitoring and visibility into how your services communicate, making troubleshooting easier.

Core Concepts in Simple Terms:

• Service Network: Think of this as a “group” where your services connect and communicate with each other.
• Service: These are your applications or microservices that provide functionality.
• Service Discovery: Automatically helps your services find each other without manually entering network details.
• Security Policies: Clearly defined rules about who can communicate with whom.

Practical Use Case Example:

Imagine you have multiple applications across different AWS accounts and VPCs. Traditionally, connecting these securely would involve complex network configurations, route management, and manual maintenance.

With AWS VPC Lattice, you simply:

1. Create a “Service Network.”
2. Register your applications or services to this network.
3. Define who can communicate with whom using easy-to-manage policies.

This saves significant time and reduces errors.

Benefits in a Nutshell:

• Easier and quicker setup.
• Less networking complexity.
• Clear visibility into your network communication.
• Enhanced security management.

When Should You Use AWS VPC Lattice?

• When managing multiple microservices or applications spread across different AWS environments.
• If you want simplified networking without deep technical overhead.
• To enhance security and manageability across your AWS infrastructure.

AWS VPC Lattice makes networking simple, secure, and scalable—perfect for modern application architectures.

Terminology

Target Group

A collection of resources, also known as targets, that run your application or service.
These are similar to the target groups provided by Elastic Load Balancing, but they are not
interchangeable. The supported target types include EC2 instances, IP addresses, Lambda
functions, Application Load Balancers, Amazon ECS tasks, and Kubernetes Pods.

Service Network

Service

An independently deployable unit of software that delivers a specific task or function. A service
can run on EC2 instances or ECS/EKS/Fargate containers, or as Lambda functions, within an
account or a virtual private cloud (VPC). A VPC Lattice service has the following components:
target groups, listeners, and rules.

Rajesh Kumar

I’m a DevOps/SRE/DevSecOps/Cloud Expert passionate about sharing knowledge and experiences. I am working at Cotocus. I blog tech insights at DevOps School, travel stories at Holiday Landmark, stock market tips at Stocks Mantra, health and fitness guidance at My Medic Plus, product reviews at I reviewed , and SEO strategies at Wizbrand. 

Please find my social handles as below;

Rajesh Kumar Personal Website
Rajesh Kumar at YOUTUBE
Rajesh Kumar at INSTAGRAM
Rajesh Kumar at X
Rajesh Kumar at FACEBOOK
Rajesh Kumar at LINKEDIN
Rajesh Kumar at PINTEREST
Rajesh Kumar at QUORA
Rajesh Kumar at WIZBRAND