Add MachineSetReady condition to MchineDeployment

api/v1beta1/condition_consts.go

@@ -228,6 +228,14 @@ const (
 	// machines required (i.e. Spec.Replicas-MaxUnavailable when MachineDeploymentStrategyType = RollingUpdate) are up and running for at least minReadySeconds.
 	MachineDeploymentAvailableCondition ConditionType = "Available"
 
+	// MachineSetReadyCondition reports a summary of current status of the MachineSet owned by the MachineDeployment.
+	MachineSetReadyCondition ConditionType = "MachineSetReady"
+
+	// WaitingForMachineSetFallbackReason (Severity=Info) documents a MachineDeployment waiting for the underlying MachineSet
+	// to be available.
+	// NOTE: This reason is used only as a fallback when the MachineSet object is not reporting its own ready condition.
+	WaitingForMachineSetFallbackReason = "WaitingForMachineSet"
+
 	// WaitingForAvailableMachinesReason (Severity=Warning) reflects the fact that the required minimum number of machines for a machinedeployment are not available.
 	WaitingForAvailableMachinesReason = "WaitingForAvailableMachines"
 )

internal/controllers/machinedeployment/machinedeployment_sync.go

@@ -499,6 +499,17 @@ func (r *Reconciler) syncDeploymentStatus(allMSs []*clusterv1.MachineSet, newMS
 	} else {
 		conditions.MarkFalse(md, clusterv1.MachineDeploymentAvailableCondition, clusterv1.WaitingForAvailableMachinesReason, clusterv1.ConditionSeverityWarning, "Minimum availability requires %d replicas, current %d available", minReplicasNeeded, md.Status.AvailableReplicas)
 	}
+
+	if newMS != nil {
+		// Report a summary of current status of the MachineSet object owned by this MachineDeployment.
+		conditions.SetMirror(md, clusterv1.MachineSetReadyCondition,
+			newMS,
+			conditions.WithFallbackValue(false, clusterv1.WaitingForMachineSetFallbackReason, clusterv1.ConditionSeverityInfo, ""),
+		)
+	} else {
+		conditions.MarkFalse(md, clusterv1.MachineSetReadyCondition, clusterv1.WaitingForMachineSetFallbackReason, clusterv1.ConditionSeverityInfo, "MachineSet not found")
+	}
+
 	return nil
 }