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Example Scenario
In this example, the host header is https://appserver.cloud-test.wso2.com/t/ttt.ttt/carbon/admin/login.jsp, the service domain is "appserver" and the tenant Id is determined from the url. According to the URL, the tenant domain is ttt.ttt. These parameters can be extracted from the header. Using both the service domain and tenant domain, requests can be directed to the correct cluster defined in the <elb_home>\repository\conf\loadbalancer.conf file, where services with their cluster domains and tenant ranges can be configured. When the Load Balancer starts, it picks those ranges and cluster domains.
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The WSO2 ELB can be used to front cluster nodes of different WSO2 Carbon-based products. Depending on the product, the configurations can have minor changes. For more information on how to use the WSO2 ELB in worker-manager clustering, refer to section, Clustering with the Load Balancer.
Enabling Auto-Scaling
Following is a portion of <elb_home>\repository\conf\loadbalancer.conf file which demonstrates how to enable auto-scaling.
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