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Learning CoreOS
book

Learning CoreOS

by Kingston Smiler. S, Shantanu Agrawal
March 2016
Intermediate to advanced
190 pages
4h 8m
English
Packt Publishing
Content preview from Learning CoreOS

HAProxy and service discovery

In this section, we use service discovery to create a web service that has multiple backend nodes with HAProxy frontend and then load balancing the service requests. HAProxy is a commonly used load balancer for TCP and HTTP-based applications.

Let's start by understanding a typical HAProxy configuration. We are not going to cover the HAProxy configuration exhaustively, but will only concentrate on the configurations that are relevant for service discovery:

frontend testloadbalancer
    bind *:80
    mode http
    balance roundrobin
    server testserver01 172.17.18.101:80 check
    server testserver02 172.17.18.102:80 check

This configuration instructs HAProxy to bind to port 80 and forward HTTP traffic to the servers 172.17.18.10 ...

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Publisher Resources

ISBN: 9781785888304