fix: engine api (kyverno#486)

Signed-off-by: Charles-Edouard Brétéché <[email protected]>

pkg/apis/policy/v1alpha1/assertion.go

@@ -7,6 +7,7 @@ type Assertion struct {
 	Message string `json:"message,omitempty"`
 
 	// Engine defines the default engine to use when evaluating expressions.
+	// +optional
 	Engine *Engine `json:"engine,omitempty"`
 
 	// Check is the assertion check definition.

pkg/apis/policy/v1alpha1/engine.go

@@ -1,5 +1,6 @@
 package v1alpha1
 
+// Engine defines the engine to use when evaluating expressions.
 // +kubebuilder:validation:Enum:=jp;cel
 type Engine string
 

pkg/apis/policy/v1alpha1/validating_policy_spec.go

@@ -3,6 +3,7 @@ package v1alpha1
 // ValidatingPolicySpec contains the policy spec.
 type ValidatingPolicySpec struct {
 	// Engine defines the default engine to use when evaluating expressions.
+	// +optional
 	Engine *Engine `json:"engine,omitempty"`
 
 	// Rules is a list of ValidatingRule instances.

pkg/apis/policy/v1alpha1/validating_rule.go

@@ -7,6 +7,7 @@ type ValidatingRule struct {
 	Name string `json:"name"`
 
 	// Engine defines the default engine to use when evaluating expressions.
+	// +optional
 	Engine *Engine `json:"engine,omitempty"`
 
 	// Context defines variables and data sources that can be used during rule execution.

website/docs/apis/kyverno-json.v1alpha1.md

@@ -79,7 +79,7 @@ auto_generated: true
 | Field | Type | Required | Inline | Description |
 |---|---|---|---|---|
 | `message` | `string` |  |  | <p>Message is the message associated message.</p> |
-| `engine` | [`Engine`](#json-kyverno-io-v1alpha1-Engine) | :white_check_mark: |  | <p>Engine defines the default engine to use when evaluating expressions.</p> |
+| `engine` | [`Engine`](#json-kyverno-io-v1alpha1-Engine) |  |  | <p>Engine defines the default engine to use when evaluating expressions.</p> |
 | `check` | [`AssertionTree`](#json-kyverno-io-v1alpha1-AssertionTree) | :white_check_mark: |  | <p>Check is the assertion check definition.</p> |
 
 ## `AssertionTree`     {#json-kyverno-io-v1alpha1-AssertionTree}
@@ -119,6 +119,9 @@ auto_generated: true
 - [ValidatingPolicySpec](#json-kyverno-io-v1alpha1-ValidatingPolicySpec)
 - [ValidatingRule](#json-kyverno-io-v1alpha1-ValidatingRule)
 
+<p>Engine defines the engine to use when evaluating expressions.</p>
+
+
 ## `Feedback`     {#json-kyverno-io-v1alpha1-Feedback}
 
 **Appears in:**
@@ -158,7 +161,7 @@ auto_generated: true
 
 | Field | Type | Required | Inline | Description |
 |---|---|---|---|---|
-| `engine` | [`Engine`](#json-kyverno-io-v1alpha1-Engine) | :white_check_mark: |  | <p>Engine defines the default engine to use when evaluating expressions.</p> |
+| `engine` | [`Engine`](#json-kyverno-io-v1alpha1-Engine) |  |  | <p>Engine defines the default engine to use when evaluating expressions.</p> |
 | `rules` | [`[]ValidatingRule`](#json-kyverno-io-v1alpha1-ValidatingRule) | :white_check_mark: |  | <p>Rules is a list of ValidatingRule instances.</p> |
 
 ## `ValidatingRule`     {#json-kyverno-io-v1alpha1-ValidatingRule}
@@ -173,7 +176,7 @@ auto_generated: true
 | Field | Type | Required | Inline | Description |
 |---|---|---|---|---|
 | `name` | `string` | :white_check_mark: |  | <p>Name is a label to identify the rule, It must be unique within the policy.</p> |
-| `engine` | [`Engine`](#json-kyverno-io-v1alpha1-Engine) | :white_check_mark: |  | <p>Engine defines the default engine to use when evaluating expressions.</p> |
+| `engine` | [`Engine`](#json-kyverno-io-v1alpha1-Engine) |  |  | <p>Engine defines the default engine to use when evaluating expressions.</p> |
 | `context` | [`[]ContextEntry`](#json-kyverno-io-v1alpha1-ContextEntry) |  |  | <p>Context defines variables and data sources that can be used during rule execution.</p> |
 | `match` | [`Match`](#json-kyverno-io-v1alpha1-Match) |  |  | <p>Match defines when this policy rule should be applied.</p> |
 | `exclude` | [`Match`](#json-kyverno-io-v1alpha1-Match) |  |  | <p>Exclude defines when this policy rule should not be applied.</p> |