🌱 Add bundle installer for sample projects in docs (#4281)

Add bundle installer for sample projects in docs

Introduces a bundle installer for sample projects, with config/default/kustomization.yaml settings uncommented to ensure complete bundle generation. This enhances review visibility by showing the final state of patches and Kustomize configurations directly in the generated bundle.

Motivation: Makes reviews more efficient by displaying final configurations directly in the bundle, with only relevant settings uncommented in config/default/kustomization.yaml for each sample.

docs/book/src/cronjob-tutorial/testdata/project/config/default/kustomization.yaml

@@ -110,37 +110,37 @@ replacements:
          index: 1
          create: true
 
- - source: # Uncomment the following block if you have a ConversionWebhook (--conversion)
-     kind: Certificate
-     group: cert-manager.io
-     version: v1
-     name: serving-cert # This name should match the one in certificate.yaml
-     fieldPath: .metadata.namespace # Namespace of the certificate CR
-   targets:
-     - select:
-         kind: CustomResourceDefinition
-       fieldPaths:
-         - .metadata.annotations.[cert-manager.io/inject-ca-from]
-       options:
-         delimiter: '/'
-         index: 0
-         create: true
- - source:
-     kind: Certificate
-     group: cert-manager.io
-     version: v1
-     name: serving-cert # This name should match the one in certificate.yaml
-     fieldPath: .metadata.name
-   targets:
-     - select:
-         kind: CustomResourceDefinition
-       fieldPaths:
-         - .metadata.annotations.[cert-manager.io/inject-ca-from]
-       options:
-         delimiter: '/'
-         index: 1
-         create: true
-
+# - source: # Uncomment the following block if you have a ConversionWebhook (--conversion)
+#     kind: Certificate
+#     group: cert-manager.io
+#     version: v1
+#     name: serving-cert # This name should match the one in certificate.yaml
+#     fieldPath: .metadata.namespace # Namespace of the certificate CR
+#   targets:
+#     - select:
+#         kind: CustomResourceDefinition
+#       fieldPaths:
+#         - .metadata.annotations.[cert-manager.io/inject-ca-from]
+#       options:
+#         delimiter: '/'
+#         index: 0
+#         create: true
+# - source:
+#     kind: Certificate
+#     group: cert-manager.io
+#     version: v1
+#     name: serving-cert # This name should match the one in certificate.yaml
+#     fieldPath: .metadata.name
+#   targets:
+#     - select:
+#         kind: CustomResourceDefinition
+#       fieldPaths:
+#         - .metadata.annotations.[cert-manager.io/inject-ca-from]
+#       options:
+#         delimiter: '/'
+#         index: 1
+#         create: true
+#
  - source: # Uncomment the following block if you enable cert-manager
      kind: Service
      version: v1

docs/book/src/cronjob-tutorial/testdata/project/config/manager/kustomization.yaml

@@ -1,2 +1,8 @@
 resources:
 - manager.yaml
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+images:
+- name: controller
+  newName: controller
+  newTag: latest