AWS Network Load Balancer simplifies deployments with support for Weighted Target Groups

Network Load Balancer Weighted Target Groups

Network Load Balancer now supports weighted target groups, allowing you to distribute traffic across multiple target groups with configurable weights for advanced deployment strategies.

Weighted target groups enable key use cases like Blue-Green and Canary Deployments, Application Migration, and A/B Testing by allowing you to register multiple target groups with configurable weights ranging from 0 to 999, providing precise control over traffic distribution.

• Blue-Green Deployments: Gradually shift traffic between application versions, minimizing downtime during upgrades and patches.
• Canary Deployments: Gradually shift traffic between application versions, minimizing downtime during upgrades and patches.
• Application Migration: Enable seamless transitions from legacy stacks to new stacks without disrupting production traffic.
• A/B Testing: Facilitate splitting incoming traffic across experimental environments.

All target group types are supported, including instance, IP address, and Application Load Balancer (ALB) targets.

Weighted Target Groups routing is available for all existing and new Network Load Balancers across AWS commercial and AWS GovCloud (US) regions at no additional charge. Standard Network Load Balancer Capacity Unit (LCU) pricing applies.

What to do

• Refer to the AWS blog post for more information.
• Consult the NLB User Guide for setup instructions.

Source: AWS release notes

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