doc (jkube-kit/doc) : Documentation for WellKnownLabelsEnricher

Add documentation for WellKnownLabelsEnricher

Signed-off-by: Rohan Kumar <rohaan@redhat.com>

CHANGELOG.md

@@ -21,8 +21,9 @@ Usage:
 ./scripts/extract-changelog-for-version.sh 1.3.37 5
 ```
 ### 1.16-SNAPSHOT
-* Fix #2257: Provide guidance when the final project packaged file is not found in Quarkus projeicts
 * Fix #1690: Base images based on ubi9
+* Fix #1700: Add [Kubernetes Well Known labels](https://kubernetes.io/docs/concepts/overview/working-with-objects/common-labels/) to generated resources
+* Fix #2257: Provide guidance when the final project packaged file is not found in Quarkus projeicts
 * Fix #2070: build goals/tasks log warning if user forgets to run package/build goal/task
 * Fix #2314: Add chart name validation before doing Helm OCI push
 * Fix #2381: Container Images based on Java 21 (Java-exec, Tomcat, Jetty, Karaf)
@@ -38,6 +39,20 @@ Usage:
 * Fix #2503: Container Images Jolokia agent bumped to 2.0.0
 * Fix #2532: Bump version.kubernetes-client from 6.9.2 to 6.10.0
 
+_**Note**_:
+Kubernetes manifests generated by JKube would now contain the following labels by default:
+- `app.kubernetes.io/component`
+- `app.kubernetes.io/managed-by`
+- `app.kubernetes.io/name`
+- `app.kubernetes.io/part-of`
+- `app.kubernetes.io/version`
+
+These are added in favor of deprecating and removing the current project labels in future releases:
+- `app`
+- `group`
+- `provider`
+- `version`
+
 ### 1.15.0 (2023-11-10)
 * Fix #2138: Support for Spring Boot Native Image
 * Fix #2186: Reuse ` io.fabric8.kubernetes.client.utils.KubernetesResourceUtil` ConfigMap utils methods

jkube-kit/doc/src/main/asciidoc/inc/_enricher.adoc

@@ -153,6 +153,8 @@ ifeval::["{plugin-type}" == "maven"]
 
 endif::[]
 
+| <<jkube-well-known-labels>>
+| Add https://kubernetes.io/docs/concepts/overview/working-with-objects/common-labels/#labels[Kubernetes Recommended Well Known labels].
 |===
 
 [[enrichers-generic]]
@@ -224,6 +226,8 @@ include::enricher/triggers-annotation/_jkube_triggers_annotation.adoc[]
 
 include::enricher/volume-permission/_jkube_volume_permission.adoc[]
 
+include::enricher/well-known-labels/_jkube_well_known_labels.adoc[]
+
 // TODO: At the moment only enrichers listed above have been tested and documented with gradle plugins. Adding the
 // rest of enrichers only in case of maven. We can slowly refactor these to support both maven and gradle configurations.
 ifeval::["{plugin-type}" == "maven"]

jkube-kit/doc/src/main/asciidoc/inc/enricher/well-known-labels/_jkube_well_known_labels.adoc

@@ -0,0 +1,69 @@
+
+[[jkube-well-known-labels]]
+==== jkube-well-known-labels
+
+Enricher that adds https://kubernetes.io/docs/concepts/overview/working-with-objects/common-labels/#labels[Well Known Labels] recommended by Kubernetes.
+
+The `jkube-well-known-labels` enricher supports the following configuration options:
+
+[cols="1,6,1"]
+|===
+| Option | Description | Property
+
+|
+| Add Kubernetes Well Known labels to generated resources.
+
+Defaults to `true`
+| `jkube.kubernetes.well-known-labels`
+
+| *enabled*
+| Enable this flag to turn on addition of Kubernetes Well Known labels.
+
+  Defaults to `true`.
+| `jkube.enricher.jkube-well-known-labels.enabled`
+
+| *name*
+| The name of the application (`app.kubernetes.io/name`).
+
+ifeval::["{plugin-type}" == "maven"]
+Defaults to the Maven `project.artifactId` property.
+endif::[]
+ifeval::["{plugin-type}" == "gradle"]
+Defaults to the Gradle Project `name` property.
+endif::[]
+| `jkube.enricher.jkube-well-known-labels.name`
+
+| *version*
+| The current version of the application (`app.kubernetes.io/version`).
+
+ifeval::["{plugin-type}" == "maven"]
+Defaults to the Maven `project.version` property.
+endif::[]
+ifeval::["{plugin-type}" == "gradle"]
+Defaults to the Gradle Project `version` property.
+endif::[]
+| `jkube.enricher.jkube-well-known-labels.version`
+
+| *component*
+| The component within the architecture (`app.kubernetes.io/component`).
+| `jkube.enricher.jkube-well-known-labels.component`
+
+| *partOf*
+| The name of a higher level application this one is part of (`app.kubernetes.io/part-of`).
+
+ifeval::["{plugin-type}" == "maven"]
+Defaults to the Maven `project.groupId` property.
+endif::[]
+ifeval::["{plugin-type}" == "gradle"]
+Defaults to the Gradle Project `group` property.
+endif::[]
+| `jkube.enricher.jkube-well-known-labels.partOf`
+
+| *managedBy*
+| The tool being used to manage the operation of an application (`app.kubernetes.io/managed-by`).
+
+Defaults to `jkube`
+| `jkube.enricher.jkube-well-known-labels.managedBy`
+|===
+
+The Well Known Labels which are already specified in the input fragments are not overridden by the enricher.