Sequential Breakdown of the Process
In this lesson, we will go through the sequential processes kicked off by a Service creation.
The Sequence
The processes that were initiated with the creation of the Service are as follows:
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Kubernetes client (
kubectl) sent a request to the API server requesting the creation of the Service based on Pods created through the go-demo-2 ReplicaSet. -
Endpoint controller is watching the API server for new service events. It detected that there is a new Service object.
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Endpoint controller created endpoint objects with the same name as the Service, and it used Service selector to identify endpoints (in this case the IP and the port of go-demo-2 Pods).
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kube-proxy is watching for service and endpoint objects. It detected that there is a new Service and a new endpoint object.
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kube-proxy added iptables rules which capture traffic to ...