Fix conversion (#2699)

.chloggen/fix-common-fields.yaml

@@ -0,0 +1,16 @@
+# One of 'breaking', 'deprecation', 'new_component', 'enhancement', 'bug_fix'
+change_type: bug_fix
+
+# The name of the component, or a single word describing the area of concern, (e.g. operator, target allocator, github action)
+component: operator
+
+# A brief description of the change. Surround your text with quotes ("") if it needs to start with a backtick (`).
+note: fixes an error in conversion from v1alpha1 to v1beta1
+
+# One or more tracking issues related to the change
+issues: [2689]
+
+# (Optional) One or more lines of additional information to render under the primary note.
+# These lines will be padded with 2 spaces and then inserted directly into the document.
+# Use pipe (|) for multiline entries.
+subtext:

internal/api/convert/v1alpha.go

@@ -40,7 +40,7 @@ func V1Alpha1to2(in v1alpha1.OpenTelemetryCollector) (v1beta1.OpenTelemetryColle
 	out.Spec.OpenTelemetryCommonFields.ManagementState = v1beta1.ManagementStateType(copy.Spec.ManagementState)
 	out.Spec.OpenTelemetryCommonFields.Resources = copy.Spec.Resources
 	out.Spec.OpenTelemetryCommonFields.NodeSelector = copy.Spec.NodeSelector
-	out.Spec.OpenTelemetryCommonFields.Args = copy.Spec.NodeSelector
+	out.Spec.OpenTelemetryCommonFields.Args = copy.Spec.Args
 	out.Spec.OpenTelemetryCommonFields.Replicas = copy.Spec.Replicas
 
 	if copy.Spec.Autoscaler != nil {

internal/api/convert/v1alpha_test.go

@@ -52,12 +52,16 @@ service:
 		cfgV1 := v1alpha1.OpenTelemetryCollector{
 			Spec: v1alpha1.OpenTelemetryCollectorSpec{
 				Config: config,
+				Args: map[string]string{
+					"test": "something",
+				},
 			},
 		}
 
 		cfgV2, err := V1Alpha1to2(cfgV1)
 		assert.Nil(t, err)
 		assert.NotNil(t, cfgV2)
+		assert.Equal(t, cfgV1.Spec.Args, cfgV2.Spec.Args)
 
 		yamlCfg, err := yaml.Marshal(&cfgV2.Spec.Config)
 		assert.Nil(t, err)