Add DatadogAgent v1alpha1 deprecation warning (#1332)

* Add DatadogAgent v1alpha1 deprecation warning * Update charts/datadog-operator/templates/NOTES.txt Co-authored-by: Celene <celene@datadoghq.com> * Update charts/datadog-operator/templates/NOTES.txt Co-authored-by: Celene <celene@datadoghq.com> * Update charts/datadog-operator/templates/NOTES.txt Co-authored-by: Celene <celene@datadoghq.com> --------- Co-authored-by: Celene <celene@datadoghq.com>
DataDog · Feb 29, 2024 · e5284d5 · e5284d5
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diff --git a/charts/datadog-operator/CHANGELOG.md b/charts/datadog-operator/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Changelog
 
+## 1.5.2
+
+* Add deprecation warning for `DatadogAgent` `v1alpha1` CRD version.
+
 ## 1.5.1
 
 * Add configuration for Operator flag `introspectionEnabled`: this parameter is used to enable the Introspection. It is disabled by default.

diff --git a/charts/datadog-operator/templates/NOTES.txt b/charts/datadog-operator/templates/NOTES.txt
@@ -40,6 +40,22 @@ The maximumGoroutines parameter isn't supported by the Operator 1.0.0-rc.12 and
 Setting a value will not change the default defined in the Operator.
     {{- end }}
 {{- end }}
+
+{{- if (semverCompare ">=1.0.0" .Values.image.tag) }}
+    {{- if .Values.datadogCRDs.migration.datadogAgents.conversionWebhook.enabled }}
+##############################################################################
+####         WARNING: v1alpha1 and conversion webhook deprecation.        ####
+##############################################################################
+
+DatadogAgent v1alpha1 reconciliation in the Operator is deprecated since v1.2.0+ and will be removed in v1.7.0.
+Once removed, the Datadog Operator cannot be configured to reconcile the v1alpha1 DatadogAgent CRD.
+However, you will still be able to apply a v1alpha1 manifest with the conversion webhook enabled (using `datadogCRDs.migration.datadogAgents.conversionWebhook.enabled`).
+DatadogAgent v1alpha1 and the conversion webhook will be removed in v1.8.0.
+See the migration page for instructions on migrating to v2alpha1: https://docs.datadoghq.com/containers/guide/datadogoperator_migration/
+    {{- end }}
+{{- end }}
+
+
 {{- if not (and (semverCompare ">=1.0.0-0" .Values.image.tag) (eq .Values.datadogCRDs.migration.datadogAgents.version "v2alpha1")) }}
 {{- fail "The Datadog Operator `1.0.0` reconciles `DatadogAgent` versions `v2alpha1`. Using an old version of the Datadog Operator (< 1.0.0) with the new version of the DatadogAgent Customer Resource, or the Datadog Operator `1.X` with the `v1alpha1` as stored version of the DatadogAgent is not supported. If you are using a DatadogAgent `v1alpha1`, refer to the Migration Steps: https://github.com/DataDog/helm-charts/blob/main/charts/datadog-operator/README.md#migrating-to-the-version-10-of-the-datadog-operator."}}
 {{- end }}