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Reto Lehmann
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README.md

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A tcp load balancer that is aware of multiple OpenShift clusters and their exported routes. Also uses pod filters to determine where a HA-Proxy is running.
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## Screenshot
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![Image of the UI](https://github.com/ReToCode/openshift-cross-cluster-loadbalancer/img/ui.png)
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![Image of the UI](https://github.com/ReToCode/openshift-cross-cluster-loadbalancer/blob/master/img/ui.png)
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## Main idea
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In a large, high load production OpenShift cluster changes to cluster itself impose a huge risk.
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During two years of OpenShift operating experience the idea of a rolling update model for the hole OpenShift cluster formed.
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Basically this works the same way the rolling update of an application on OpenShift works.
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But instead of creating new containers, you create a hole new OpenShift cluster and automatically migrate the applications based on any selectors.
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![Rolling update of the cluster](https://github.com/ReToCode/openshift-cross-cluster-loadbalancer/img/rollingClusterUpdate.png)
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![Rolling update of the cluster](https://github.com/ReToCode/openshift-cross-cluster-loadbalancer/blob/master/img/rollingClusterUpdate.png)
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In our case we would like to move less important projects to the new cluster, test all operations in productive workload and then migrate the important apps.
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As everything is containerized and based on yaml configuration files, the migration of applications is quite easy.
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## Smart load balancer components
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![Components of smart load balancer](https://github.com/ReToCode/openshift-cross-cluster-loadbalancer/img/internalArchitecture.png)
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![Components of smart load balancer](https://github.com/ReToCode/openshift-cross-cluster-loadbalancer/blob/master/img/internalArchitecture.png)
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## High level overview
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![High level overview](https://github.com/ReToCode/openshift-cross-cluster-loadbalancer/img/architectureOverview.png)
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![High level overview](https://github.com/ReToCode/openshift-cross-cluster-loadbalancer/blob/master/img/architectureOverview.png)
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## Setup
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- You need two OpenShift clusters with HA-Proxies as routers

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