Add scale subresource for k0scontrolplane (#834)

Signed-off-by: Adrian Pedriza <adripedriza@gmail.com> Co-authored-by: Adrian Pedriza <adripedriza@gmail.com>
k0sproject · Nov 28, 2024 · d764604 · d764604
1 parent 4607fff
commit d764604
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Showing 3 changed files with 102 additions and 2 deletions.
diff --git a/api/controlplane/v1beta1/k0s_types.go b/api/controlplane/v1beta1/k0s_types.go
@@ -43,8 +43,18 @@ const (
 
 // +kubebuilder:object:root=true
 // +kubebuilder:subresource:status
+// +kubebuilder:subresource:scale:specpath=.spec.replicas,statuspath=.status.replicas,selectorpath=.status.selector
 // +kubebuilder:metadata:labels="cluster.x-k8s.io/v1beta1=v1beta1"
 // +kubebuilder:metadata:labels="cluster.x-k8s.io/provider=control-plane-k0smotron"
+// +kubebuilder:printcolumn:name="Cluster",type="string",JSONPath=".metadata.labels['cluster\\.x-k8s\\.io/cluster-name']",description="Cluster"
+// +kubebuilder:printcolumn:name="API Server Available",type=boolean,JSONPath=".status.ready",description="This denotes that the target API Server is ready to receive requests"
+// +kubebuilder:printcolumn:name="Desired",type=integer,JSONPath=".spec.replicas",description="Total number of machines desired by this control plane",priority=10
+// +kubebuilder:printcolumn:name="Replicas",type=integer,JSONPath=".status.replicas",description="Total number of non-terminated machines targeted by this control plane"
+// +kubebuilder:printcolumn:name="Ready",type=integer,JSONPath=".status.readyReplicas",description="Total number of fully running and ready control plane instances"
+// +kubebuilder:printcolumn:name="Updated",type=integer,JSONPath=".status.updatedReplicas",description="Total number of non-terminated machines targeted by this control plane that have the desired template spec"
+// +kubebuilder:printcolumn:name="Unavailable",type=integer,JSONPath=".status.unavailableReplicas",description="Total number of unavailable control plane instances targeted by this control plane"
+// +kubebuilder:printcolumn:name="Age",type="date",JSONPath=".metadata.creationTimestamp",description="Time duration since creation of K0sControlPlane"
+// +kubebuilder:printcolumn:name="Version",type=string,JSONPath=".spec.version",description="Kubernetes version associated with this control plane"
 
 type K0sControlPlane struct {
 	metav1.TypeMeta   `json:",inline"`

diff --git a/config/clusterapi/controlplane/bases/controlplane.cluster.x-k8s.io_k0scontrolplanes.yaml b/config/clusterapi/controlplane/bases/controlplane.cluster.x-k8s.io_k0scontrolplanes.yaml
@@ -17,7 +17,48 @@ spec:
     singular: k0scontrolplane
   scope: Namespaced
   versions:
-  - name: v1beta1
+  - additionalPrinterColumns:
+    - description: Cluster
+      jsonPath: .metadata.labels['cluster\.x-k8s\.io/cluster-name']
+      name: Cluster
+      type: string
+    - description: This denotes that the target API Server is ready to receive requests
+      jsonPath: .status.ready
+      name: API Server Available
+      type: boolean
+    - description: Total number of machines desired by this control plane
+      jsonPath: .spec.replicas
+      name: Desired
+      priority: 10
+      type: integer
+    - description: Total number of non-terminated machines targeted by this control
+        plane
+      jsonPath: .status.replicas
+      name: Replicas
+      type: integer
+    - description: Total number of fully running and ready control plane instances
+      jsonPath: .status.readyReplicas
+      name: Ready
+      type: integer
+    - description: Total number of non-terminated machines targeted by this control
+        plane that have the desired template spec
+      jsonPath: .status.updatedReplicas
+      name: Updated
+      type: integer
+    - description: Total number of unavailable control plane instances targeted by
+        this control plane
+      jsonPath: .status.unavailableReplicas
+      name: Unavailable
+      type: integer
+    - description: Time duration since creation of K0sControlPlane
+      jsonPath: .metadata.creationTimestamp
+      name: Age
+      type: date
+    - description: Kubernetes version associated with this control plane
+      jsonPath: .spec.version
+      name: Version
+      type: string
+    name: v1beta1
     schema:
       openAPIV3Schema:
         properties:
@@ -353,4 +394,8 @@ spec:
     served: true
     storage: true
     subresources:
+      scale:
+        labelSelectorPath: .status.selector
+        specReplicasPath: .spec.replicas
+        statusReplicasPath: .status.replicas
       status: {}
diff --git a/config/crd/bases/controlplane.cluster.x-k8s.io_k0scontrolplanes.yaml b/config/crd/bases/controlplane.cluster.x-k8s.io_k0scontrolplanes.yaml
@@ -17,7 +17,48 @@ spec:
     singular: k0scontrolplane
   scope: Namespaced
   versions:
-  - name: v1beta1
+  - additionalPrinterColumns:
+    - description: Cluster
+      jsonPath: .metadata.labels['cluster\.x-k8s\.io/cluster-name']
+      name: Cluster
+      type: string
+    - description: This denotes that the target API Server is ready to receive requests
+      jsonPath: .status.ready
+      name: API Server Available
+      type: boolean
+    - description: Total number of machines desired by this control plane
+      jsonPath: .spec.replicas
+      name: Desired
+      priority: 10
+      type: integer
+    - description: Total number of non-terminated machines targeted by this control
+        plane
+      jsonPath: .status.replicas
+      name: Replicas
+      type: integer
+    - description: Total number of fully running and ready control plane instances
+      jsonPath: .status.readyReplicas
+      name: Ready
+      type: integer
+    - description: Total number of non-terminated machines targeted by this control
+        plane that have the desired template spec
+      jsonPath: .status.updatedReplicas
+      name: Updated
+      type: integer
+    - description: Total number of unavailable control plane instances targeted by
+        this control plane
+      jsonPath: .status.unavailableReplicas
+      name: Unavailable
+      type: integer
+    - description: Time duration since creation of K0sControlPlane
+      jsonPath: .metadata.creationTimestamp
+      name: Age
+      type: date
+    - description: Kubernetes version associated with this control plane
+      jsonPath: .spec.version
+      name: Version
+      type: string
+    name: v1beta1
     schema:
       openAPIV3Schema:
         properties:
@@ -353,4 +394,8 @@ spec:
     served: true
     storage: true
     subresources:
+      scale:
+        labelSelectorPath: .status.selector
+        specReplicasPath: .spec.replicas
+        statusReplicasPath: .status.replicas
       status: {}