How to use

rotations

method

in

com.yahoo.config.provision.ClusterSpec

protected String toStringValue() {
  return cluster.type().name() +
      "/" + cluster.id().value() +
      (cluster.group().isPresent() ? "/" + cluster.group().get().index() : "") +
      "/" + index +
      ( cluster.isExclusive() ? "/exclusive" : "") +
      ( retired ? "/retired" : "") +
      ( !cluster.rotations().isEmpty() ? "/" + rotationsAsString(cluster.rotations()) : "");
}

/**
 * Provision load balancer(s) for given application.
 *
 * If the application has multiple container clusters, one load balancer will be provisioned for each cluster.
 */
public Map<LoadBalancerId, LoadBalancer> provision(ApplicationId application) {
  try (Mutex applicationLock = nodeRepository.lock(application)) {
    try (Mutex loadBalancersLock = db.lockLoadBalancers()) {
      Map<LoadBalancerId, LoadBalancer> loadBalancers = new LinkedHashMap<>();
      for (Map.Entry<ClusterSpec, List<Node>> kv : activeContainers(application).entrySet()) {
        LoadBalancer loadBalancer = create(application, kv.getKey().id(), kv.getValue())
            .with(kv.getKey().rotations());
        loadBalancers.put(loadBalancer.id(), loadBalancer);
        db.writeLoadBalancer(loadBalancer);
      }
      return Collections.unmodifiableMap(loadBalancers);
    }
  }
}