Service Operator

With every object and agent decoupled we need a flexible and scalable agent which connects resources together and will reconnect, should something die and a replacement is spawned. A service is an operator which listens to the endpoint operator to provide a persistent IP for Pods. Pods have ephemeral IP addresses chosen from a pool.

Then the service operator sends messages via the kube-apiserver which forwards settings to kube-proxy on every node, as well as the network plugin such as calico-kube-controllers.

A service also handles access policies for inbound requests, useful for resource control, as well as for security.

• Connect Pods together

• Expose Pods to Internet

• Decouple settings

• Define Pod access policy.