Make Path an optional field and remove validation

As due to secure joins, the requirement on both providing a path
and/or requiring it to be in a certain format offers little value
over the UX experience of not having to provide it when you just
want to reconcile whatever can be found in the root of the source
reference.

Signed-off-by: Hidde Beydals <hello@hidde.co>

api/v1beta1/kustomization_types.go

@@ -45,7 +45,7 @@ type KustomizationSpec struct {
 	// +optional
 	Decryption *Decryption `json:"decryption,omitempty"`
 
-	// The interval at which to reconcile the kustomization.
+	// The interval at which to reconcile the Kustomization.
 	// +required
 	Interval metav1.Duration `json:"interval"`
 
@@ -54,10 +54,11 @@ type KustomizationSpec struct {
 	// +optional
 	KubeConfig *KubeConfig `json:"kubeConfig,omitempty"`
 
-	// Path to the directory containing the kustomization file.
-	// +kubebuilder:validation:Pattern="^\\./"
-	// +required
-	Path string `json:"path"`
+	// Path to the directory containing the kustomization.yaml file, or the
+	// set of plain YAMLs a kustomization.yaml should be generated for.
+	// Defaults to 'None', which translates to the root path of the SourceRef.
+	// +optional
+	Path string `json:"path,omitempty"`
 
 	// Prune enables garbage collection.
 	// +required

config/crd/bases/kustomize.toolkit.fluxcd.io_kustomizations.yaml

@@ -135,7 +135,7 @@ spec:
                   type: object
                 type: array
               interval:
-                description: The interval at which to reconcile the kustomization.
+                description: The interval at which to reconcile the Kustomization.
                 type: string
               kubeConfig:
                 description: The KubeConfig for reconciling the Kustomization on a
@@ -159,8 +159,10 @@ spec:
                     type: object
                 type: object
               path:
-                description: Path to the directory containing the kustomization file.
-                pattern: ^\./
+                description: Path to the directory containing the kustomization.yaml
+                  file, or the set of plain YAMLs a kustomization.yaml should be generated
+                  for. Defaults to 'None', which translates to the root path of the
+                  SourceRef.
                 type: string
               prune:
                 description: Prune enables garbage collection.
@@ -219,7 +221,6 @@ spec:
                 type: string
             required:
             - interval
-            - path
             - prune
             - sourceRef
             type: object

docs/api/kustomize.md

@@ -108,7 +108,7 @@ Kubernetes meta/v1.Duration
 </em>
 </td>
 <td>
-<p>The interval at which to reconcile the kustomization.</p>
+<p>The interval at which to reconcile the Kustomization.</p>
 </td>
 </tr>
 <tr>
@@ -134,7 +134,10 @@ string
 </em>
 </td>
 <td>
-<p>Path to the directory containing the kustomization file.</p>
+<em>(Optional)</em>
+<p>Path to the directory containing the kustomization.yaml file, or the
+set of plain YAMLs a kustomization.yaml should be generated for.
+Defaults to &lsquo;None&rsquo;, which translates to the root path of the SourceRef.</p>
 </td>
 </tr>
 <tr>
@@ -609,7 +612,7 @@ Kubernetes meta/v1.Duration
 </em>
 </td>
 <td>
-<p>The interval at which to reconcile the kustomization.</p>
+<p>The interval at which to reconcile the Kustomization.</p>
 </td>
 </tr>
 <tr>
@@ -635,7 +638,10 @@ string
 </em>
 </td>
 <td>
-<p>Path to the directory containing the kustomization file.</p>
+<em>(Optional)</em>
+<p>Path to the directory containing the kustomization.yaml file, or the
+set of plain YAMLs a kustomization.yaml should be generated for.
+Defaults to &lsquo;None&rsquo;, which translates to the root path of the SourceRef.</p>
 </td>
 </tr>
 <tr>

docs/spec/v1alpha1/kustomization.md

@@ -30,7 +30,6 @@ type KustomizationSpec struct {
 	KubeConfig *KubeConfig `json:"kubeConfig,omitempty"`
 
 	// Path to the directory containing the kustomization file.
-	// +kubebuilder:validation:Pattern="^\\./"
 	// +required
 	Path string `json:"path"`
 

docs/spec/v1beta1/kustomization.md

@@ -21,7 +21,7 @@ type KustomizationSpec struct {
 	// +optional
 	Decryption *Decryption `json:"decryption,omitempty"`
 
-	// The interval at which to apply the kustomization.
+	// The interval at which to reconcile the Kustomization.
 	// +required
 	Interval metav1.Duration `json:"interval"`
 
@@ -30,10 +30,11 @@ type KustomizationSpec struct {
 	// +optional
 	KubeConfig *KubeConfig `json:"kubeConfig,omitempty"`
 
-	// Path to the directory containing the kustomization.yaml file.
-	// +kubebuilder:validation:Pattern="^\\./"
-	// +required
-	Path string `json:"path"`
+	// Path to the directory containing the kustomization.yaml file, or the
+	// set of plain YAMLs a kustomization.yaml should be generated for.
+	// Defaults to 'None', which translates to the root path of the SourceRef.
+	// +optional
+	Path string `json:"path,omitempty"`
 
 	// Enables garbage collection.
 	// +required