public static void handleClusterTerminatingEvent(ClusterStatusClusterTerminatingEvent event) {
TopologyManager.acquireWriteLock();
try {
Topology topology = TopologyManager.getTopology();
Cluster cluster =
topology.getService(event.getServiceName()).getCluster(event.getClusterId());
if (!cluster.isStateTransitionValid(ClusterStatus.Terminating, event.getInstanceId())) {
log.error(
"Invalid state transfer from "
+ cluster.getStatus(event.getInstanceId())
+ " to "
+ ClusterStatus.Terminating);
}
ClusterInstance context = cluster.getInstanceContexts(event.getInstanceId());
if (context == null) {
log.warn(
"Cluster Instance Context is not found for [cluster] "
+ event.getClusterId()
+ " [instance-id] "
+ event.getInstanceId());
return;
}
ClusterStatus status = ClusterStatus.Terminating;
if (context.isStateTransitionValid(status)) {
context.setStatus(status);
log.info("Cluster Terminating started for " + cluster.getClusterId());
TopologyManager.updateTopology(topology);
// publishing data
ClusterInstanceTerminatingEvent clusterTerminaingEvent =
new ClusterInstanceTerminatingEvent(
event.getAppId(),
event.getServiceName(),
event.getClusterId(),
event.getInstanceId());
TopologyEventPublisher.sendClusterTerminatingEvent(clusterTerminaingEvent);
// Remove kubernetes services if available
ClusterContext clusterContext =
CloudControllerContext.getInstance().getClusterContext(event.getClusterId());
if (StringUtils.isNotBlank(clusterContext.getKubernetesClusterId())) {
KubernetesIaas.removeKubernetesServices(event.getAppId(), event.getClusterId());
}
} else {
log.error(
String.format(
"Cluster state transition is not valid: [cluster-id] %s "
+ " [instance-id] %s [current-status] %s [status-requested] %s",
event.getClusterId(), event.getInstanceId(), context.getStatus(), status));
}
} finally {
TopologyManager.releaseWriteLock();
}
}
