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Using the New Network Load Balancer with Amazon ECS

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Agenda • Which load balancer is right for me? • How to use Network Load Balancer with ECS • How to configure tasks to take advantage of NLB

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What is a load balancer?

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Application Load Balancer Network Load Balancer Load balancers can operate at different levels of the network stack

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GET /hello-world.html HTTP/1.1 Host: www.test.com Accept: text/html, */* Accept-Language: en-us Accept-Encoding: gzip, deflate User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)

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GET /hello-world.html HTTP/1.1 Host: www.test.com Accept: text/html, */* Accept-Language: en-us Accept-Encoding: gzip, deflate User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)

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A load balancer is more than just this...

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Layer 7 Load Balancer Layer 4 Load Balancer Beneath the hood

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Layer 7 Load Balancer SSL Termination Layer 7 Load Balancer SSL in Transit

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Layer 4 Load Balancer End to end SSL

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HTTP Routing

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Static Ports

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Dynamic Port Mapping

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Dynamic Port Routing

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Application Code Task Definition

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Task Definition Live Tasks On Instance

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Live Tasks On Instance Target Group

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Target Group Service

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Tips & Tricks

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For low latency, don't double your SSL overhead

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Terminate SSL at the load balancer... ...or, send SSL all the way to the app server

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Use dynamic ports, rather than static ports: