[api] add maintenance spec and evicted status field as discussed

This adds the maintenance spec prop and evicted bool status which was
discussed in the the workshop

Author: notandy

api/v1/hypervisor_types.go

@@ -74,6 +74,11 @@ type HypervisorSpec struct {
 	// +kubebuilder:default:=true
 	// InstallCertificate is used to enable the installations of the certificates via kvm-node-agent.
 	InstallCertificate bool `json:"installCertificate"`
+
+	// +kubebuilder:optional
+	// +kubebuilder:validation:Enum:=;manual;auto;ha
+	// Maintenance indicates whether the hypervisor is in maintenance mode.
+	Maintenance string `json:"maintenance,omitempty"`
 }
 
 type Instance struct {
@@ -184,6 +189,9 @@ type HypervisorStatus struct {
 	// InternalIP is the internal IP address of the hypervisor.
 	InternalIP string `json:"internalIp,omitempty"`
 
+	// Evicted indicates whether the hypervisor is evicted. (no instances left with active maintenance mode)
+	Evicted bool `json:"evicted,omitempty"`
+
 	// Represents the Hypervisor node conditions.
 	Conditions []metav1.Condition `json:"conditions,omitempty" patchStrategy:"merge" patchMergeKey:"type" protobuf:"bytes,1,rep,name=conditions"`
 

applyconfigurations/api/v1/hypervisorspec.go

@@ -138,6 +138,14 @@ spec:
                 description: LifecycleEnabled enables the lifecycle management of
                   the hypervisor via hypervisor-operator.
                 type: boolean
+              maintenance:
+                description: Maintenance indicates whether the hypervisor is in maintenance
+                  mode.
+                enum:
+                - ;manual
+                - auto
+                - ha
+                type: string
               reboot:
                 default: false
                 description: Reboot request an reboot after successful installation
@@ -251,6 +259,10 @@ spec:
                   - type
                   type: object
                 type: array
+              evicted:
+                description: Evicted indicates whether the hypervisor is evicted.
+                  (no instances left with active maintenance mode)
+                type: boolean
               hypervisorId:
                 description: HypervisorID is the unique identifier of the hypervisor
                   in OpenStack.

applyconfigurations/api/v1/hypervisorstatus.go

@@ -139,6 +139,14 @@ spec:
                 description: LifecycleEnabled enables the lifecycle management of
                   the hypervisor via hypervisor-operator.
                 type: boolean
+              maintenance:
+                description: Maintenance indicates whether the hypervisor is in maintenance
+                  mode.
+                enum:
+                - ;manual
+                - auto
+                - ha
+                type: string
               reboot:
                 default: false
                 description: Reboot request an reboot after successful installation
@@ -252,6 +260,10 @@ spec:
                   - type
                   type: object
                 type: array
+              evicted:
+                description: Evicted indicates whether the hypervisor is evicted.
+                  (no instances left with active maintenance mode)
+                type: boolean
               hypervisorId:
                 description: HypervisorID is the unique identifier of the hypervisor
                   in OpenStack.