### Pod Shutdown Implementation

[ZDS](../../pkg/zdsapi/zds.proto) exposes a `DelWorkload` message to signal to Ztunnel that a pod has been terminated.
This can be triggered either by a Pod being actually deleted, or has transitioned to a [terminal phase](https://kubernetes.io/docs/concepts/workloads/pods/pod-lifecycle/).
At this point, the pod and all containers have fully shut down, and we can tear everything down.

  // lastUpdateTime is the time of the last update to this condition
  // +optional
  optional k8s.io.apimachinery.pkg.apis.meta.v1.Time lastUpdateTime = 4;

  // lastTransitionTime is the time the condition last transitioned from one status to another.
  // If unset, when a new condition type is added or an existing condition's status is changed,
  // the server defaults this to the current time.
  // +optional

  // lastTransitionTime is the last time the condition transitioned from
  // one status to another
  // +optional
  optional k8s.io.apimachinery.pkg.apis.meta.v1.Time lastTransitionTime = 3;

  // reason is the reason for the condition's last transition.
  // +optional
  optional string reason = 4;

  // message is a human-readable explanation containing details about
  // the transition
  // +optional
  optional string message = 5;

		Host:         handlers.GetSourceIP(r),
	})

	if !remoteCallRequired && !globalTierConfigMgr.Empty() {
		// Schedule object for immediate transition if eligible.
		objInfo.ETag = origETag
		enqueueTransitionImmediate(objInfo, lcEventSrc_s3CopyObject)
		// Remove the transitioned object whose object version is being overwritten.
		os.Sweep()
	}
}

// PutObjectHandler - PUT Object
// ----------

	// Deleted is set when this FileInfo represents
	// a deleted marker for a versioned bucket.
	Deleted bool `msg:"del"`

	// TransitionStatus is set to Pending/Complete for transitioned
	// entries based on state of transition
	TransitionStatus string `msg:"ts"`
	// TransitionedObjName is the object name on the remote tier corresponding
	// to object (version) on the source tier.
	TransitionedObjName string `msg:"to"`

	} else if sc, ok := fi.Metadata[xhttp.AmzStorageClass]; ok {
		objInfo.StorageClass = sc
	} else {
		objInfo.StorageClass = globalMinioDefaultStorageClass
	}

	// set restore status for transitioned object
	restoreHdr, ok := fi.Metadata[xhttp.AmzRestore]
	if ok {
		if restoreStatus, err := parseRestoreObjStatus(restoreHdr); err == nil {
			objInfo.RestoreOngoing = restoreStatus.Ongoing()

                  // This means that the state has changed since we were scheduled. This implies
                  // that an execution of runOneIteration has thrown an exception and we have
                  // transitioned to a failed state, also this means that shutDown has already
                  // been called, so we do not want to call it again.
                  return;
                }
                shutDown();

  // lastTransitionTime is the last time the condition transitioned from
  // one status to another
  // +optional
  optional k8s.io.apimachinery.pkg.apis.meta.v1.Time lastTransitionTime = 3;

  // reason is the reason for the condition's last transition.
  // +optional
  optional string reason = 4;

  // message is a human-readable explanation containing details about
  // the transition
  // +optional
  optional string message = 5;

  // lastTransitionTime is the last time the condition transitioned from
  // one status to another
  // +optional
  optional k8s.io.apimachinery.pkg.apis.meta.v1.Time lastTransitionTime = 3;

  // reason is the reason for the condition's last transition.
  // +optional
  optional string reason = 4;

  // message is a human-readable explanation containing details about
  // the transition
  // +optional
  optional string message = 5;

  // lastTransitionTime is the last time the condition transitioned from
  // one status to another
  // +optional
  optional k8s.io.apimachinery.pkg.apis.meta.v1.Time lastTransitionTime = 3;

  // reason is the reason for the condition's last transition.
  // +optional
  optional string reason = 4;

  // message is a human-readable explanation containing details about
  // the transition
  // +optional
  optional string message = 5;