Add unavailableReplicas to Function CRD

The unavailableReplicas helps show when a function cannot
fully progress due to some issue in the cluster.

Signed-off-by: Alex Ellis (OpenFaaS Ltd) <[email protected]>

Author: alexellis

artifacts/crds/crds.yaml

@@ -455,16 +455,21 @@ spec:
       type: string
     - jsonPath: .status.conditions[?(@.type == "Ready")].status
       name: Ready
+      priority: 1
       type: string
     - jsonPath: .status.conditions[?(@.type == "Healthy")].status
       name: Healthy
       type: string
     - jsonPath: .status.replicas
       name: Replicas
-      type: string
+      type: integer
     - jsonPath: .status.availableReplicas
       name: Available
-      type: string
+      type: integer
+    - jsonPath: .status.unavailableReplicas
+      name: Unavailable
+      priority: 1
+      type: integer
     name: v1
     schema:
       openAPIV3Schema:
@@ -618,6 +623,9 @@ spec:
               replicas:
                 format: int32
                 type: integer
+              unavailableReplicas:
+                format: int32
+                type: integer
             type: object
         required:
         - spec

artifacts/crds/openfaas.com_functions.yaml

@@ -22,16 +22,21 @@ spec:
       type: string
     - jsonPath: .status.conditions[?(@.type == "Ready")].status
       name: Ready
+      priority: 1
       type: string
     - jsonPath: .status.conditions[?(@.type == "Healthy")].status
       name: Healthy
       type: string
     - jsonPath: .status.replicas
       name: Replicas
-      type: string
+      type: integer
     - jsonPath: .status.availableReplicas
       name: Available
-      type: string
+      type: integer
+    - jsonPath: .status.unavailableReplicas
+      name: Unavailable
+      priority: 1
+      type: integer
     name: v1
     schema:
       openAPIV3Schema:
@@ -185,6 +190,9 @@ spec:
               replicas:
                 format: int32
                 type: integer
+              unavailableReplicas:
+                format: int32
+                type: integer
             type: object
         required:
         - spec

chart/openfaas/artifacts/crds.yaml

@@ -455,16 +455,21 @@ spec:
       type: string
     - jsonPath: .status.conditions[?(@.type == "Ready")].status
       name: Ready
+      priority: 1
       type: string
     - jsonPath: .status.conditions[?(@.type == "Healthy")].status
       name: Healthy
       type: string
     - jsonPath: .status.replicas
       name: Replicas
-      type: string
+      type: integer
     - jsonPath: .status.availableReplicas
       name: Available
-      type: string
+      type: integer
+    - jsonPath: .status.unavailableReplicas
+      name: Unavailable
+      priority: 1
+      type: integer
     name: v1
     schema:
       openAPIV3Schema:
@@ -618,6 +623,9 @@ spec:
               replicas:
                 format: int32
                 type: integer
+              unavailableReplicas:
+                format: int32
+                type: integer
             type: object
         required:
         - spec

chart/openfaas/templates/openfaas.com_functions-crd.yaml

@@ -24,16 +24,21 @@ spec:
       type: string
     - jsonPath: .status.conditions[?(@.type == "Ready")].status
       name: Ready
+      priority: 1
       type: string
     - jsonPath: .status.conditions[?(@.type == "Healthy")].status
       name: Healthy
       type: string
     - jsonPath: .status.replicas
       name: Replicas
-      type: string
+      type: integer
     - jsonPath: .status.availableReplicas
       name: Available
-      type: string
+      type: integer
+    - jsonPath: .status.unavailableReplicas
+      name: Unavailable
+      priority: 1
+      type: integer
     name: v1
     schema:
       openAPIV3Schema:
@@ -187,6 +192,9 @@ spec:
               replicas:
                 format: int32
                 type: integer
+              unavailableReplicas:
+                format: int32
+                type: integer
             type: object
         required:
         - spec

pkg/apis/openfaas/v1/types.go

@@ -9,10 +9,11 @@ import (
 // +kubebuilder:subresource:status
 // +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
 // +kubebuilder:printcolumn:name="Image",type=string,JSONPath=`.spec.image`
-// +kubebuilder:printcolumn:name="Ready",type=string,JSONPath=`.status.conditions[?(@.type == "Ready")].status`
-// +kubebuilder:printcolumn:name="Healthy",type=string,JSONPath=`.status.conditions[?(@.type == "Healthy")].status`
-// +kubebuilder:printcolumn:name="Replicas",type=string,JSONPath=`.status.replicas`
-// +kubebuilder:printcolumn:name="Available",type=string,JSONPath=`.status.availableReplicas`
+// +kubebuilder:printcolumn:name="Ready",type=string,JSONPath=`.status.conditions[?(@.type == "Ready")].status`,priority=1,description="The function's desired state has been applied by the controller"
+// +kubebuilder:printcolumn:name="Healthy",type=string,JSONPath=`.status.conditions[?(@.type == "Healthy")].status`,description="All replicas of the function's desired state are available to serve traffic"
+// +kubebuilder:printcolumn:name="Replicas",type=integer,JSONPath=`.status.replicas`,description="The desired number of replicas"
+// +kubebuilder:printcolumn:name="Available",type=integer,JSONPath=`.status.availableReplicas`
+// +kubebuilder:printcolumn:name="Unavailable",type=integer,JSONPath=`.status.unavailableReplicas`,priority=1
 
 // Function describes an OpenFaaS function
 type Function struct {
@@ -78,6 +79,9 @@ type FunctionStatus struct {
 
 	// +optional
 	AvailableReplicas int32 `json:"availableReplicas,omitempty"`
+
+	// +optional
+	UnavailableReplicas int32 `json:"unavailableReplicas,omitempty"`
 }
 
 // +genclient