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A benefit (and reason to adopt) a microservices-based architecture is the ability to horizontally scale any instance of a microservice. A multi-instance microservice of course requires a single service location (endpoint) so that other services can use it without needing to keep track of the multiple instances. A popular way of providing this service is by using a load balancer. The load balancer (or the load balancer controller) now has to take this responsibility of keeping track of the multiple instances.This talk will discuss the various approaches taken in different container managers (e.g., Kubernetes and Docker Swarm) towards load balancing and highlight how open source and commercial load balancers fit into these approaches.
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Teaching an old dog new tricks: hardware load balancers for container clusters and micro services
Chiradeep Vittal is a Distinguished Engineer at Citrix Systems. Prior to Citrix, he was a founding engineer at Cloud.com (progenitor of Apache CloudStack -an IAAS platform), often tasked with the thorny details of virtualized networking and storage.