seqdiag {

activation = none;

user[label = "Admin User"];

bootstrap[label = "Bootstrap API\nEndpoint"];

master;

kubelet[stacked];

user -> bootstrap [label="createCluster", return="cluster ID"];

user <-- bootstrap [label="returns\n- bootstrap-cluster-uri"];

user ->> master [label="start\n- bootstrap-cluster-uri"];

master => bootstrap [label="setMaster\n- master-location\n- master-ca"];

user ->> kubelet [label="start\n- bootstrap-cluster-uri"];

kubelet => bootstrap [label="get-master", return="returns\n- master-location\n- master-ca"];

kubelet ->> master [label="signCert\n- unsigned-kubelet-cert", return="retuns\n- kubelet-cert"];

user => master [label="getSignRequests"];

user => master [label="approveSignRequests"];

kubelet <<-- master [label="returns\n- kubelet-cert"];

kubelet => master [label="register\n- kubelet-location"]

}