Fix Kubernetes LeaseActor and improve logging

src/coordination/kubernetes/Akka.Coordination.KubernetesApi/Internal/KubernetesApiImpl.cs

@@ -97,7 +97,7 @@ public async Task<LeaseResource> ReadOrCreateLeaseResource(string name)
         public async Task<Either<LeaseResource, LeaseResource>> UpdateLeaseResource(
             string leaseName, string ownerName, string version, DateTime? time = null)
         {
-            var cts = new CancellationTokenSource(_settings.BodyReadTimeout);
+            using var cts = new CancellationTokenSource(_settings.BodyReadTimeout);
             try
             {
                 var leaseBody = new LeaseCustomResource(
@@ -117,20 +117,20 @@ public async Task<Either<LeaseResource, LeaseResource>> UpdateLeaseResource(
                     .ConfigureAwait(false);
                 var newLease = operationResponse.Body;
 #else
-                var operationResponse = await _client.ReplaceNamespacedCustomObjectAsync(
+                var newLease = await _client.ReplaceNamespacedCustomObjectAsync(
                     body: leaseBody,
-                    @group: _crd.Group,
+                    group: _crd.Group,
                     version: _crd.Version,
                     namespaceParameter: _namespace,
                     plural: _crd.PluralName,
                     name: leaseName,
                     cancellationToken: cts.Token
                 );
-                var newLease = operationResponse;
 #endif
 
-                _log.Debug("Lease after update: {0}", JsonConvert.SerializeObject(newLease));
-                return new Right<LeaseResource, LeaseResource>(ToLeaseResource(newLease));
+                var lease = ToLeaseResource(newLease);
+                _log.Debug("Lease after update: {0}", lease);
+                return new Right<LeaseResource, LeaseResource>(lease);
             }
             catch (HttpOperationException e)
             {

src/coordination/kubernetes/Akka.Coordination.KubernetesApi/KubernetesApi.cs

@@ -44,6 +44,9 @@ public LeaseResource(string? owner, string version, DateTime time)
         public DateTime Time { get; }
 
         public bool IsTaken => Owner != null;
+
+        public override string ToString()
+            => $"{{owner:{Owner}, version:{Version}, time:{Time}}}";
     }
 
 }

src/coordination/kubernetes/Akka.Coordination.KubernetesApi/KubernetesLease.cs

@@ -66,7 +66,7 @@ public KubernetesLease(ExtendedActorSystem system, AtomicBoolean leaseTaken, Lea
             var client = new KubernetesApiImpl(system, kubernetesSettings);
             _timeout = _settings.TimeoutSettings.OperationTimeout;
             _leaseName = MakeDns1039Compatible(settings.LeaseName);
-            _leaseActor = system.ActorOf(
+            _leaseActor = system.SystemActorOf(
                 LeaseActor.Props(client, settings, _leaseName, leaseTaken),
                 $"KubernetesLease{LeaseCounter.GetAndIncrement()}");
 

src/coordination/kubernetes/Akka.Coordination.KubernetesApi/LeaseActor.cs

@@ -432,7 +432,7 @@ public LeaseActor(IKubernetesApi client, LeaseSettings settings, string leaseNam
                 if (!(@event.FsmEvent is WriteResponse writeResponse))
                     return null;
 
-                // FIXME deal with failure from releasing the the lock, currently handled in whenUnhandled but could retry to remove: https://github.com/lightbend/akka-commercial-addons/issues/502
+                // FIXME deal with failure from releasing the lock, currently handled in whenUnhandled but could retry to remove: https://github.com/lightbend/akka-commercial-addons/issues/502
                 var response = writeResponse.Response;
                 var data = (OperationInProgress) @event.StateData;
                 var who = data.ReplyTo;

src/coordination/kubernetes/Akka.Coordination.KubernetesApi/Models/LeaseCustomResource.cs

@@ -27,6 +27,9 @@ public LeaseCustomResource(
             Kind = "Lease";
             ApiVersion = "akka.io/v1";
         }
+
+        public override string ToString()
+            => $"{{owner:{Spec.Owner}, version:{Metadata.ResourceVersion}, time:{Spec.Time}}}";
     }
 
     internal sealed class LeaseSpec