NK-31: Implemented validation of failurePolicy field.

crd/crd.yaml

@@ -15,4 +15,13 @@ spec:
     singular: policy
   subresources:
     status: {}
-
+  validation:
+   openAPIV3Schema:
+     properties:
+       spec:
+         properties:
+           failurePolicy:
+             type: string
+             enum:
+             - continueOnError
+             - stopOnError

pkg/apis/policy/v1alpha1/types.go

@@ -17,6 +17,7 @@ type Policy struct {
 }
 
 // Specification of the Policy.
+// failurePolicy can have values "continueOnError" and "stopOnError" (default).
 type PolicySpec struct {
 	FailurePolicy *string      `json:"failurePolicy"`
 	Rules         []PolicyRule `json:"rules"`