fix: spec invalid rendered values "null" (#11481)

* fix: spec invalid rendered values "null"

* chore: add fragments

* update helm to v4

* fix: k8s_events empty config

* rollback go mod changes

* rollback licenses

Author: rogercoll

changelog/fragments/1764348725-fix_templates_for_helm_4.yaml

@@ -0,0 +1,32 @@
+# 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: bug-fix
+
+# Change summary; a 80ish characters long description of the change.
+summary: fix kube-stack null template evaluation for Helm v4
+
+# 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:
+
+# Affected component; usually one of "elastic-agent", "fleet-server", "filebeat", "metricbeat", "auditbeat", "all", etc.
+component:
+
+# 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/owner/repo/1234
+
+# 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/managed_otlp/logs-values.yaml

@@ -233,7 +233,7 @@ collectors:
               endpoint: ${env:MY_POD_IP}:4317
             http:
               endpoint: ${env:MY_POD_IP}:4318
-      processors:
+      processors: {}
       exporters:
         debug:
         otlp/ingest:

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

@@ -114,7 +114,7 @@ collectors:
               - "service.version"
       receivers:
         # [K8s Events Receiver](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/receiver/k8seventsreceiver)
-        k8s_events:
+        k8s_events: {}
         # [K8s Objects Receiver](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/receiver/k8sobjectsreceiver)
         # NOTE: The k8sobjects receiver for K8s Events collection is being replaced by the k8s_events receiver, it might be removed in future versions of this configuration
         k8sobjects:
@@ -544,7 +544,7 @@ collectors:
               endpoint: ${env:MY_POD_IP}:4317
             http:
               endpoint: ${env:MY_POD_IP}:4318
-      processors:
+      processors: {}
       exporters:
         debug:
         otlp/ingest_logs:

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

@@ -114,7 +114,7 @@ collectors:
               - "service.version"
       receivers:
         # [K8s Events Receiver](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/receiver/k8seventsreceiver)
-        k8s_events:
+        k8s_events: {}
         # [K8s Objects Receiver](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/receiver/k8sobjectsreceiver)
         # NOTE: The k8sobjects receiver for K8s Events collection is being replaced by the k8s_events receiver, it might be removed in future versions of this configuration
         k8sobjects:
@@ -590,7 +590,7 @@ collectors:
           metrics/aggregated-otel-metrics:
             receivers:
               - elasticapm
-            processors:
+            processors: []
             exporters:
               - debug
               - elasticsearch/otel
@@ -599,6 +599,7 @@ collectors:
 instrumentation:
   name: elastic-instrumentation
   enabled: true # Enable/disable auto-instrumentation.
+  env: []
   exporter:
     endpoint: http://opentelemetry-kube-stack-daemon-collector.opentelemetry-operator-system.svc.cluster.local:4318 # The daemonset OpenTelemetry Collector endpoint where telemetry data will be exported.
   propagators: