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53 changes: 53 additions & 0 deletions
53
docs/proposals/images/controlplane/controlplane-init-1.plantuml
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,53 @@ | ||
| @startuml | ||
| title User creates a Cluster with ControlPlane | ||
| actor User | ||
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| ' -- GROUPS START --- | ||
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| box #lightgreen | ||
| participant "API Server" | ||
| end box | ||
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| box #lightslategray | ||
| participant "Cluster API Cluster Controller" | ||
| end box | ||
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| ' -- GROUPS END --- | ||
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| User->"API Server":kubectl apply -f cluster.yaml | ||
| "API Server"-->>"Cluster API Cluster Controller": New Cluster | ||
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| "Cluster API Cluster Controller"-> "Cluster API Cluster Controller":Cluster Controller Reconcile | ||
| activate "Cluster API Cluster Controller" | ||
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| note over "Cluster API Cluster Controller": - ✅ Cluster.Status.InfraStructureReady is false\n- ✅ Cluster.Spec.ControlPlaneRef is populated\n- ✅ Cluster.Spec.ControlPlaneRef -> Status.Ready is false | ||
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| opt Required only if the object hasn't been seen before | ||
| "Cluster API Cluster Controller"-> "Cluster API Cluster Controller":Add watcher for \nCluster.Spec.InfrastructureRef.Kind objects | ||
| end | ||
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| opt Required only if the object hasn't been seen before | ||
| "Cluster API Cluster Controller"-> "Cluster API Cluster Controller":Add watcher for \nCluster.Spec.ControlPlaneRef.Kind objects | ||
| end | ||
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| opt Required only if the object doesn't have a Cluster owner reference | ||
| "Cluster API Cluster Controller"-> "Cluster API Cluster Controller":Set Cluster.Spec.InfrastructureRef -> OwnerReferences[0] to Cluster | ||
| "Cluster API Cluster Controller"->"API Server": Patch AWSInfrastructureConfig | ||
| "Cluster API Cluster Controller"<<--"API Server": Response | ||
| end | ||
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| opt Required only if the object doesn't have a Machine owner reference | ||
| "Cluster API Cluster Controller"-> "Cluster API Cluster Controller":Set Cluster.Spec.ControlPlaneRef -> OwnerReferences[0] to Cluster | ||
| "Cluster API Cluster Controller"->"API Server": Patch ControlPlane | ||
| "Cluster API Cluster Controller"<<--"API Server": Response | ||
| end | ||
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| "Cluster API Cluster Controller"-> "Cluster API Cluster Controller":Set Cluster.Status.Phase = "Pending" | ||
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| "Cluster API Cluster Controller"->"API Server": Patch Cluster Status | ||
| "Cluster API Cluster Controller"<<--"API Server": Response | ||
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| deactivate "Cluster API Cluster Controller" | ||
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| hide footbox | ||
| @enduml |
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54 changes: 54 additions & 0 deletions
54
docs/proposals/images/controlplane/controlplane-init-2.plantuml
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,54 @@ | ||
| @startuml | ||
| title User creates a Cluster with ControlPlane | ||
|
|
||
| ' -- GROUPS START --- | ||
|
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||
| box #lightgreen | ||
| participant "API Server" | ||
| end box | ||
|
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||
| box #violet | ||
| participant "ControlPlane Controller" | ||
| end box | ||
|
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| ' -- GROUPS END --- | ||
|
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| note right of "ControlPlane Controller":Watches ControlPlane,\nCluster, and Machine events with mapFunc | ||
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| "API Server"-->>"ControlPlane Controller": Cluster Updated | ||
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| "ControlPlane Controller"-> "ControlPlane Controller":Enqueues ControlPlane Reconcile | ||
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| "ControlPlane Controller"-> "ControlPlane Controller":ControlPlane Controller Reconcile | ||
| activate "ControlPlane Controller" | ||
|
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| note over "ControlPlane Controller": - ✅ ControlPlane.OwnerReferences \ncontains a Cluster | ||
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| "ControlPlane Controller"->"API Server": Get Cluster | ||
| "ControlPlane Controller"<<--"API Server": Response | ||
|
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| note over "ControlPlane Controller": - ✅ Cluster.Status.InfraStructureReady is true\n- ✅ ControlPlane instance is valid | ||
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| "ControlPlane Controller"->"API Server": Get Machines maching label selector | ||
| "ControlPlane Controller"<<--"API Server": Response | ||
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| opt ControlPlane.Spec.Replicas >= 1, no existing Machines found | ||
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| "ControlPlane Controller"->"API Server": Create KubeadmConfig from ControlPlane.Spec.KubeadmConfigSpec | ||
| "ControlPlane Controller"<<--"API Server": Response | ||
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| "ControlPlane Controller"->"API Server": Create InfrastructureMachine from ControlPlane.Spec.InfrastructureTemplate | ||
| "ControlPlane Controller"<<--"API Server": Response | ||
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| "ControlPlane Controller"->"API Server": Create Machine using refs from created KubeadmConfig and InfrastructureMachine resources | ||
| "ControlPlane Controller"<<--"API Server": Response | ||
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| "ControlPlane Controller"-> "ControlPlane Controller":Set ControlPlane.Status.Phase = "Pending" | ||
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| end | ||
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| "ControlPlane Controller"->"API Server": Patch ControlPlane | ||
| "ControlPlane Controller"<<--"API Server": Response | ||
|
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||
| hide footbox | ||
| @enduml |
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53 changes: 53 additions & 0 deletions
53
docs/proposals/images/controlplane/controlplane-init-3.plantuml
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,53 @@ | ||
| @startuml | ||
| title User creates a Cluster with ControlPlane | ||
|
|
||
| ' -- GROUPS START --- | ||
|
|
||
| box #lightgreen | ||
| participant "API Server" | ||
| end box | ||
|
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||
| box #violet | ||
| participant "ControlPlane Controller" | ||
| end box | ||
|
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||
| ' -- GROUPS END --- | ||
|
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| note right of "ControlPlane Controller":Watches ControlPlane,\nCluster, and Machine events with mapFunc | ||
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| "API Server"-->>"ControlPlane Controller": Machine Updated | ||
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| "ControlPlane Controller"-> "ControlPlane Controller":Enqueues ControlPlane Reconcile | ||
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| "ControlPlane Controller"-> "ControlPlane Controller":ControlPlane Controller Reconcile | ||
| activate "ControlPlane Controller" | ||
|
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| note over "ControlPlane Controller": - ✅ ControlPlane.OwnerReferences \ncontains a Cluster | ||
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| "ControlPlane Controller"->"API Server": Get Cluster | ||
| "ControlPlane Controller"<<--"API Server": Response | ||
|
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| note over "ControlPlane Controller": - ✅ Cluster.Status.Phase is "Pending" \n- ✅ Cluster.Status.InfraStructureReady is true\n- ✅ ControlPlane instance is valid | ||
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| "ControlPlane Controller"->"API Server": Get Machines maching label selector | ||
| "ControlPlane Controller"<<--"API Server": Response | ||
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| opt ControlPlane.Spec.Replicas >= 1, 1 or more existing Machines found that is "Ready" | ||
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| "ControlPlane Controller"-> "ControlPlane Controller":Set ControlPlane.Status.Initialized = true | ||
| "ControlPlane Controller"-> "ControlPlane Controller":Set ControlPlane.Status.Phase = "Initialized" | ||
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| opt num Machines matches Replicas, and all Machines "Ready" | ||
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| "ControlPlane Controller"-> "ControlPlane Controller":Set ControlPlane.Status.Ready = true | ||
| "ControlPlane Controller"-> "ControlPlane Controller":Set ControlPlane.Status.Phase = "Ready" | ||
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| end | ||
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| end | ||
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| "ControlPlane Controller"->"API Server": Patch ControlPlane | ||
| "ControlPlane Controller"<<--"API Server": Response | ||
|
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||
| hide footbox | ||
| @enduml |
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41 changes: 41 additions & 0 deletions
41
docs/proposals/images/controlplane/controlplane-init-4.plantuml
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,41 @@ | ||
| @startuml | ||
| title User creates a Cluster with ControlPlane | ||
|
|
||
| ' -- GROUPS START --- | ||
|
|
||
| box #lightgreen | ||
| participant "API Server" | ||
| end box | ||
|
|
||
| box #lightslategray | ||
| participant "Cluster API Cluster Controller" | ||
| end box | ||
|
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| ' -- GROUPS END --- | ||
|
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| "API Server"-->>"Cluster API Cluster Controller": ControlPlane updated | ||
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| "Cluster API Cluster Controller"-> "Cluster API Cluster Controller":Cluster Controller Reconcile | ||
| activate "Cluster API Cluster Controller" | ||
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| opt Cluster.Spec.ControlPlaneRef -> Status.Initialized is true | ||
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| "Cluster API Cluster Controller"-> "Cluster API Cluster Controller":Set Cluster.Status.ControlPlaneInitialized = true | ||
| "Cluster API Cluster Controller"-> "Cluster API Cluster Controller":Set Cluster.Status.Phase = "Initialized" | ||
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| opt Cluster.Spec.ControlPlaneRef -> Status.Ready is true | ||
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| "Cluster API Cluster Controller"-> "Cluster API Cluster Controller":Set Cluster.Status.ControlPlaneReady = true | ||
| "Cluster API Cluster Controller"-> "Cluster API Cluster Controller":Set Cluster.Status.Phase = "Ready" | ||
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| end | ||
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| end | ||
|
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| "Cluster API Cluster Controller"->"API Server": Patch Cluster Status | ||
| "Cluster API Cluster Controller"<<--"API Server": Response | ||
|
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| deactivate "Cluster API Cluster Controller" | ||
|
|
||
| hide footbox | ||
| @enduml |
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54 changes: 54 additions & 0 deletions
54
docs/proposals/images/controlplane/controlplane-init-6.plantuml
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,54 @@ | ||
| @startuml | ||
| title User scales up a ControlPlane | ||
| actor User | ||
|
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||
| ' -- GROUPS START --- | ||
|
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||
| box #lightgreen | ||
| participant "API Server" | ||
| end box | ||
|
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||
| box #violet | ||
| participant "ControlPlane Controller" | ||
| end box | ||
|
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| ' -- GROUPS END --- | ||
|
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| User->"API Server":kubectl scale cp/my-control-plane -replicas=3 | ||
| "API Server"-->>"ControlPlane Controller": ControlPlane Updated | ||
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| "ControlPlane Controller"-> "ControlPlane Controller":Enqueues ControlPlane Reconcile | ||
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| "ControlPlane Controller"-> "ControlPlane Controller":ControlPlane Controller Reconcile | ||
| activate "ControlPlane Controller" | ||
|
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| note over "ControlPlane Controller": - ✅ ControlPlane.OwnerReferences \ncontains a Cluster | ||
|
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| "ControlPlane Controller"->"API Server": Get Cluster | ||
| "ControlPlane Controller"<<--"API Server": Response | ||
|
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| note over "ControlPlane Controller": - ✅ Cluster.Status.InfraStructureReady is true\n- ✅ ControlPlane instance is valid | ||
|
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| "ControlPlane Controller"->"API Server": Get Machines maching label selector | ||
| "ControlPlane Controller"<<--"API Server": Response | ||
|
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| opt ControlPlane.Spec.Replicas >= 1, all existing Machines "Ready", num Machines < Replicas | ||
|
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| "ControlPlane Controller"->"API Server": Create KubeadmConfig from ControlPlane.Spec.KubeadmConfigSpec | ||
| "ControlPlane Controller"<<--"API Server": Response | ||
|
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| "ControlPlane Controller"->"API Server": Create InfrastructureMachine from ControlPlane.Spec.InfrastructureTemplate | ||
| "ControlPlane Controller"<<--"API Server": Response | ||
|
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| "ControlPlane Controller"->"API Server": Create Machine using refs from created KubeadmConfig and InfrastructureMachine resources | ||
| "ControlPlane Controller"<<--"API Server": Response | ||
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| "ControlPlane Controller"-> "ControlPlane Controller":Set ControlPlane.Status.Phase = "ScalingUp" | ||
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| end | ||
|
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| "ControlPlane Controller"->"API Server": Update ControlPlane | ||
| "ControlPlane Controller"<<--"API Server": Response | ||
|
|
||
| hide footbox | ||
| @enduml |
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57 changes: 57 additions & 0 deletions
57
docs/proposals/images/controlplane/controlplane-init-7.plantuml
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,57 @@ | ||
| @startuml | ||
| title User scales down a ControlPlane | ||
| actor User | ||
|
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||
| ' -- GROUPS START --- | ||
|
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||
| box #lightgreen | ||
| participant "API Server" | ||
| end box | ||
|
|
||
| box #violet | ||
| participant "ControlPlane Controller" | ||
| end box | ||
|
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| box #lightgreen | ||
| participant "Workload Cluster API Server" | ||
| end box | ||
|
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| ' -- GROUPS END --- | ||
|
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| User->"API Server":kubectl scale cp/my-control-plane -replicas=1 | ||
| "API Server"-->>"ControlPlane Controller": ControlPlane Updated | ||
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| "ControlPlane Controller"-> "ControlPlane Controller":Enqueues ControlPlane Reconcile | ||
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| "ControlPlane Controller"-> "ControlPlane Controller":ControlPlane Controller Reconcile | ||
| activate "ControlPlane Controller" | ||
|
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| note over "ControlPlane Controller": - ✅ ControlPlane.OwnerReferences \ncontains a Cluster | ||
|
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| "ControlPlane Controller"->"API Server": Get Cluster | ||
| "ControlPlane Controller"<<--"API Server": Response | ||
|
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| note over "ControlPlane Controller": - ✅ Cluster.Status.InfraStructureReady is true\n- ✅ ControlPlane instance is valid | ||
|
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| "ControlPlane Controller"->"API Server": Get Machines maching label selector | ||
| "ControlPlane Controller"<<--"API Server": Response | ||
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| note over "ControlPlane Controller": - Process for selecting a Machine to delete is TBD | ||
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| opt ControlPlane.Spec.Replicas >= 1, all existing Machines "Ready", num Machines > Replicas | ||
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| "ControlPlane Controller"->"API Server": Delete a Machine | ||
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| "ControlPlane Controller"->"Workload Cluster API Server": Remove etcd Member | ||
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| "ControlPlane Controller"->"Workload Cluster API Server": Modify kubeadm ConfigMap | ||
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| "ControlPlane Controller"-> "ControlPlane Controller":Set ControlPlane.Status.Phase = "ScalingDown" | ||
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| end | ||
|
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| "ControlPlane Controller"->"API Server": Update ControlPlane | ||
| "ControlPlane Controller"<<--"API Server": Response | ||
|
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||
| hide footbox | ||
| @enduml |
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