private void setupRemainingSlaves(final KubernetesClusterCreateTask currentState) {
// Maintenance task should be singleton for any cluster.
ClusterMaintenanceTaskService.State startState = new ClusterMaintenanceTaskService.State();
startState.batchExpansionSize = currentState.slaveBatchExpansionSize;
startState.documentSelfLink = currentState.clusterId;
Operation postOperation =
Operation.createPost(
UriUtils.buildUri(getHost(), ClusterMaintenanceTaskFactoryService.SELF_LINK))
.setBody(startState)
.setCompletion(
(Operation operation, Throwable throwable) -> {
if (null != throwable) {
failTaskAndPatchDocument(currentState, NodeType.KubernetesSlave, throwable);
return;
}
// The handleStart method of the maintenance task does not push itself to STARTED
// automatically.
// We need to patch the maintenance task manually to start the task immediately.
// Otherwise
// the task will wait for one interval to start.
startMaintenance(currentState);
});
sendRequest(postOperation);
}
private void startMaintenance(final KubernetesClusterCreateTask currentState) {
ClusterMaintenanceTaskService.State patchState = new ClusterMaintenanceTaskService.State();
patchState.taskState = new TaskState();
patchState.taskState.stage = TaskState.TaskStage.STARTED;
// Start the maintenance task async without waiting for its completion so that the creation task
// can finish immediately.
Operation patchOperation =
Operation.createPatch(
UriUtils.buildUri(
getHost(),
ClusterMaintenanceTaskFactoryService.SELF_LINK + "/" + currentState.clusterId))
.setBody(patchState)
.setCompletion(
(Operation operation, Throwable throwable) -> {
// We ignore the failure here since maintenance task will kick in eventually.
TaskUtils.sendSelfPatch(this, buildPatch(TaskState.TaskStage.FINISHED, null));
});
sendRequest(patchOperation);
}