Remove resource/k8s processor and use k8sattributes processor for service attributes (#8599) (#8653)

* Remove resource/k8s processor and use k8sattributes processor for service attributes



* remove k8s labels extraction



* update changelog



---------


(cherry picked from commit b2aa165)

Signed-off-by: ChrsMark <[email protected]>
Co-authored-by: Christos Markou <[email protected]>

Author: mergify[bot]

changelog/fragments/1750408426-kube-stack-service-attrs.yaml

@@ -0,0 +1,38 @@
+# Kind can be one of:
+# - breaking-change: a change to previously-documented behavior
+# - deprecation: functionality that is being removed in a later release
+# - bug-fix: fixes a problem in a previous version
+# - enhancement: extends functionality but does not break or fix existing behavior
+# - feature: new functionality
+# - known-issue: problems that we are aware of in a given version
+# - security: impacts on the security of a product or a user’s deployment.
+# - upgrade: important information for someone upgrading from a prior version
+# - other: does not fit into any of the other categories
+kind: feature
+
+# Change summary; a 80ish characters long description of the change.
+summary: Remove resource/k8s processor and use k8sattributes processor for service attributes
+
+# Long description; in case the summary is not enough to describe the change
+# this field accommodate a description without length limits.
+# NOTE: This field will be rendered only for breaking-change and known-issue kinds at the moment.
+description: |
+  This PR removes the `resource/k8s` processor in honour of the k8sattributes processor that
+  provides native support for the Service attributes:
+  https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/v0.127.0/processor/k8sattributesprocessor#configuring-recommended-resource-attributes
+
+  This change is aligned with the respective Semantic Conventions' guidance:
+  https://opentelemetry.io/docs/specs/semconv/non-normative/k8s-attributes/#service-attributes
+
+# Affected component; usually one of "elastic-agent", "fleet-server", "filebeat", "metricbeat", "auditbeat", "all", etc.
+component: elastic-agent
+
+# PR URL; optional; the PR number that added the changeset.
+# If not present is automatically filled by the tooling finding the PR where this changelog fragment has been added.
+# NOTE: the tooling supports backports, so it's able to fill the original PR number instead of the backport PR number.
+# Please provide it if you are adding a fragment for a different PR.
+pr: https://github.com/elastic/elastic-agent/pull/8599
+
+# Issue URL; optional; the GitHub issue related to this changeset (either closes or is part of).
+# If not present is automatically filled by the tooling with the issue linked to the PR number.
+#issue: https://github.com/owner/repo/1234

deploy/helm/edot-collector/kube-stack/values.yaml

@@ -69,22 +69,6 @@ collectors:
             resource_attributes:
               k8s.cluster.name:
                 enabled: true
-        # [Resource Processor](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/processor/resourceprocessor)
-        resource/k8s: # Resource attributes tailored for services within Kubernetes.
-          attributes:
-            - key: service.name # Set the service.name resource attribute based on the well-known app.kubernetes.io/name label
-              from_attribute: app.label.name
-              action: insert
-            - key: service.name # Set the service.name resource attribute based on the k8s.container.name attribute
-              from_attribute: k8s.container.name
-              action: insert
-            - key: app.label.name # Delete app.label.name attribute previously used for service.name
-              action: delete
-            - key: service.version # Set the service.version resource attribute based on the well-known app.kubernetes.io/version label
-              from_attribute: app.label.version
-              action: insert
-            - key: app.label.version # Delete app.label.version attribute previously used for service.version
-              action: delete
         resource/hostname:
           attributes:
             - key: host.name
@@ -117,13 +101,9 @@ collectors:
               - "k8s.pod.ip"
               - "k8s.pod.uid"
               - "k8s.pod.start_time"
-            labels:
-              - tag_name: app.label.name
-                key: app.kubernetes.io/name
-                from: pod
-              - tag_name: app.label.version
-                key: app.kubernetes.io/version
-                from: pod
+              # Service attributes added based on https://opentelemetry.io/docs/specs/semconv/non-normative/k8s-attributes/#service-attributes
+              - "service.name"
+              - "service.version"
       receivers:
         # [K8s Objects Receiver](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/receiver/k8sobjectsreceiver)
         k8sobjects:
@@ -166,7 +146,6 @@ collectors:
               - resourcedetection/eks
               - resourcedetection/gcp
               - resourcedetection/aks
-              - resource/k8s
               - resource/hostname
             receivers:
               - k8s_cluster
@@ -280,22 +259,6 @@ collectors:
                 enabled: false
               host.id:
                 enabled: true
-        # [Resource Processor](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/processor/resourceprocessor)
-        resource/k8s: # Resource attributes tailored for services within Kubernetes.
-          attributes:
-            - key: service.name # Set the service.name resource attribute based on the well-known app.kubernetes.io/name label
-              from_attribute: app.label.name
-              action: insert
-            - key: service.name # Set the service.name resource attribute based on the k8s.container.name attribute
-              from_attribute: k8s.container.name
-              action: insert
-            - key: app.label.name # Delete app.label.name attribute previously used for service.name
-              action: delete
-            - key: service.version # Set the service.version resource attribute based on the well-known app.kubernetes.io/version label
-              from_attribute: app.label.version
-              action: insert
-            - key: app.label.version # Delete app.label.version attribute previously used for service.version
-              action: delete
         resource/cloud:
           attributes:
             - key: cloud.instance.id
@@ -331,13 +294,9 @@ collectors:
               - "k8s.pod.ip"
               - "k8s.pod.uid"
               - "k8s.pod.start_time"
-            labels:
-              - tag_name: app.label.name
-                key: app.kubernetes.io/name
-                from: pod
-              - tag_name: app.label.version
-                key: app.kubernetes.io/version
-                from: pod
+              # Service attributes added based on https://opentelemetry.io/docs/specs/semconv/non-normative/k8s-attributes/#service-attributes
+              - "service.name"
+              - "service.version"
       receivers:
         # [OTLP Receiver](https://github.com/open-telemetry/opentelemetry-collector/tree/main/receiver/otlpreceiver)
         otlp:
@@ -478,7 +437,6 @@ collectors:
               - resourcedetection/eks
               - resourcedetection/gcp
               - resourcedetection/aks
-              - resource/k8s
               - resource/hostname
               - resource/cloud
             exporters:
@@ -494,7 +452,6 @@ collectors:
               - resourcedetection/eks
               - resourcedetection/gcp
               - resourcedetection/aks
-              - resource/k8s
               - resource/hostname
               - resource/cloud
             exporters: