fix: Opentelemetry Collector in sidecar mode doesn't count instances (#25407)

Signed-off-by: Jorge Turrado <jorge.turrado@mail.schwarz>

resource_customizations/opentelemetry.io/OpenTelemetryCollector/health.lua

@@ -28,8 +28,13 @@ if obj.status ~= nil then
             hs.message = "Unable to parse replica status: " ..tostring(statusReplicas)
         end
     else
-        hs.status = "Progressing"
-        hs.message = "Scale status not available"
+        if obj.spec.mode == "sidecar" then
+            hs.status = "Healthy"
+            hs.message = "Collector is running in sidecar mode"
+        else
+            hs.status = "Progressing"
+            hs.message = "Scale status not available"
+        end
     end
 end
 return hs

resource_customizations/opentelemetry.io/OpenTelemetryCollector/health_test.yaml

@@ -1,13 +1,17 @@
 tests:
-- healthStatus:
-    status: Healthy
-    message: "All replicas are ready"
-  inputPath: testdata/healthy.yaml
-- healthStatus:
-    status: Degraded
-    message: "No replicas are ready"
-  inputPath: testdata/degraded.yaml
-- healthStatus:
-    status: Progressing
-    message: "Replicas are starting up"
-  inputPath: testdata/progressing.yaml
+  - healthStatus:
+      status: Healthy
+      message: "All replicas are ready"
+    inputPath: testdata/healthy.yaml
+  - healthStatus:
+      status: Degraded
+      message: "No replicas are ready"
+    inputPath: testdata/degraded.yaml
+  - healthStatus:
+      status: Progressing
+      message: "Replicas are starting up"
+    inputPath: testdata/progressing.yaml
+  - healthStatus:
+      status: Healthy
+      message: "Collector is running in sidecar mode"
+    inputPath: testdata/sidecar.yaml

resource_customizations/opentelemetry.io/OpenTelemetryCollector/testdata/sidecar.yaml

@@ -0,0 +1,9 @@
+apiVersion: opentelemetry.io/v1beta1
+kind: OpenTelemetryCollector
+metadata:
+  name: test-collector-sidecar
+  namespace: default
+spec:
+  mode: sidecar
+status:
+  version: 0.124.1