Added operator version attribute to pods.

Author: Silvenga

src/Contrast.K8s.AgentOperator/Core/Reactions/Injecting/InjectionConstants.cs

@@ -10,6 +10,7 @@ public static class InjectionConstants
         // Pod annotations via the mutation webhook.
         public const string IsInjectedAttributeName = "agents.contrastsecurity.com/is-injected";
         public const string InjectedOnAttributeName = "agents.contrastsecurity.com/injected-on";
+        public const string InjectedByAttributeName = "agents.contrastsecurity.com/injected-by";
         public const string InjectorTypeAttributeName = "agents.contrastsecurity.com/injector-type";
 
         // Pod annotations via the workload (our direct patching).

src/Contrast.K8s.AgentOperator/Core/Reactions/Injecting/Patching/PodPatcher.cs

@@ -57,6 +57,7 @@ private void ApplyPatches(PatchingContext context, V1Pod pod, IAgentPatcher? age
         {
             pod.SetAnnotation(InjectionConstants.IsInjectedAttributeName, true.ToString());
             pod.SetAnnotation(InjectionConstants.InjectedOnAttributeName, DateTimeOffset.UtcNow.ToString("O"));
+            pod.SetAnnotation(InjectionConstants.InjectedByAttributeName, $"Contrast.K8s.AgentOperator/{OperatorVersion.Version}");
             pod.SetAnnotation(InjectionConstants.InjectorTypeAttributeName, context.Injector.Type.ToString());
 
             pod.Spec.Volumes ??= new List<V1Volume>();