docs & test fix

Signed-off-by: Attila Mészáros <[email protected]>

Author: csviri

README.md

@@ -17,7 +17,9 @@ In other words, it also allows you to write **workflows** over resources in a **
 
 ## Contact Us
 
-Either in the discussion section here on GitHub or at [Kubernetes Slack Operator Channel](https://kubernetes.slack.com/archives/CAW0GV7A5).
+Either in the discussion section here on GitHub or at [Kubernetes Slack Operator Channel](https://kubernetes.slack.com/archives/CAW0GV7A5). While
+in "object" form only placeholder substitutions are possible, in string template you can use all the 
+features of qute.
 
 ## Quick Introduction
 
@@ -61,6 +63,8 @@ spec:
   parent:
     apiVersion: glueoperator.sample/v1  # watches all the custom resource of type WebPage
     kind: WebPage
+    status:  # update the status of the custom resource at the end of reconciliation
+      observedGeneration: "{parent.metadata.generation}"
   childResources:
     - name: htmlconfigmap
       resource:

docs/reference.md

@@ -6,6 +6,10 @@ of [Java Operator SDK](https://github.com/operator-framework/java-operator-sdk)
 Although it is limited only to Kubernetes resources it makes it very easy to use in language-independent 
 (DependentResources in JOSDK are also covering external resources) way. 
 
+## Generic Notes
+
+- All templates (both object and string based) uses [Qute templating engine](https://quarkus.io/guides/qute-reference).
+
 ## [Glue resource](https://github.com/java-operator-sdk/kubernetes-glue-operator/releases/latest/download/glues.glue-v1.yml)
 
 `Glue` is the heart of the operator. Note that `GlueOperator` controller just creates a new `Glue` with a related resource, 
@@ -57,6 +61,9 @@ The following attributes can be defined for a related resource:
 - **`apiVersion`** - Kubernetes resource API Version of the resource
 - **`kind`** - Kubernetes kind property of the resource
 - **`resourceNames`** - list of string of the resource names within the same namespace as `Glue`.  
+- **`statusPatch`** - template object used to update status of the related resource at the end of the reconciliation. See [sample](https://github.com/java-operator-sdk/kubernetes-glue-operator/blob/main/src/test/resources/glue/PatchRelatedStatus.yaml#L20-L21).
+    All the available resources (child, related) are provided.         
+- **`statusPatchTemplate`** - same as `statusPatch` just as a string template. See [sample](https://github.com/java-operator-sdk/kubernetes-glue-operator/blob/main/src/test/resources/glue/PatchRelatedStatusWithTemplate.yaml#L20-L21).
 
 ### Referencing other resources
 
@@ -91,6 +98,9 @@ The specs of `GlueOperator` are almost identical to `Glue`, it just adds some ad
    - **`apiVersion`** and **`kind`** - of the target custom resources.
    - **`labelSelector`** - optional label selector for the target resources.
    - **`clusterScoped`** - optional boolean value, if the parent resource is cluster scoped. Default is `false`.
+   - **`status`** - template object to update status of the related resource at the end of the reconciliation. 
+     All the available resources (parent, child, related) are available.
+   - **`statusTemplate`** - same as `status` just as a string template.
  - **`glueMetadata`** - optionally, you can customize the `Glue` resource created for each parent resource. 
     This is especially important when the parent is a cluster scoped resource - in that case it is mandatory to set. 
     Using this you can specify the **`name`** and **`namespace`** of the created `Glue`.

src/test/java/io/javaoperatorsdk/operator/glue/sample/webpage/WebPageE2E.java

@@ -59,10 +59,12 @@ void testWebPageCRUDOperations() {
       assertThat(ingress).isNotNull();
     });
 
+    var wp = client.resources(WebPage.class).withName("webpage1").get();
+    assertThat(wp.getStatus().getObservedGeneration()).isNotNull();
+
     client.resource(createdWebPage).delete();
 
     await().timeout(TestUtils.GC_WAIT_TIMEOUT).untilAsserted(() -> {
-      var wp = client.resources(WebPage.class).withName("webpage1").get();
       var deployment =
           client.resources(Deployment.class).withName(webPage.getMetadata().getName()).get();
       var configMap =
@@ -74,7 +76,7 @@ void testWebPageCRUDOperations() {
       assertThat(configMap).isNull();
       assertThat(service).isNull();
       assertThat(ingress).isNull();
-      assertThat(wp.getStatus().getObservedGeneration()).isNotNull();
+
     });
   }