open fun setClusterManager(clusterManager: ClusterManager): VertxOptions
Programmatically set the cluster manager to be used when clustering.
Only valid if clustered = true.
Normally Vert.x will look on the classpath for a cluster manager, but if you want to set one programmatically you can use this method.
clusterManager - the cluster manager
Return
a reference to this, so the API can be used fluently