NodeEventFromNode returns a NodeEvent event from a node.

NotifyNodeAdded notifies the metrics server that a node has been added.

NotifyNodeRemoved notifies the metrics server that a node has been removed.

NotifyNodeUpdated notifies the metrics server that a node has been updated.

NotifyUpgradeFailed notifies the metrics server that an upgrade has failed.

NotifyUpgradeStarted notifies the metrics server that an upgrade has started.

NotifyUpgradeSucceeded notifies the metrics server that an upgrade has succeeded.

NodeEvent is the event generated when a new node appears in the cluster or an existing node is updated.

NodeRemovedEvent is the event generated when a node is removed from the cluster.

UpgradeFailedEvent is send back home when the upgrade fails.

UpgradeStartedEvent is send back home when the upgrade starts.

UpgradeSucceededEvent event is send back home when the upgrade succeeds.