CKAT

lifecycle

NS
Ingress (DNS)
kub network policy (firewall)
kub service (IP table) load balancer/reverse proxy
(((((exe)container)pod)replica)deploy)

kubectl -> kube api service ->  etcd
							kube scheduler
							kube controller manager
[                                  control plane                                       ]
		                            ||
		                            ||
		                            ||
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[                                  worker node                                       ]
kube-spray
kubelet
container runtime
linux kernel

Persistent Volume Claim
PV Persistence Volume