Java Code Examples for io.fabric8.kubernetes.api.model.ReplicationController#getSpec()

public static boolean isReplicationControllerReady(ReplicationController r) {
  Utils.checkNotNull(r, "ReplicationController can't be null.");
  ReplicationControllerSpec spec = r.getSpec();
  ReplicationControllerStatus status = r.getStatus();

  if (status == null || status.getReadyReplicas() == null) {
    return false;
  }

  //Can be true in testing, so handle it to make test writing easier.
  if (spec == null || spec.getReplicas() == null) {
    return false;
  }

  return spec.getReplicas().intValue() == status.getReadyReplicas();
}
 

private void printReplicationControllers(ReplicationControllerList replicationControllers, PrintStream out) {
    TablePrinter table = new TablePrinter();
    table.columns("id", "labels", "replicas", "replica selector");
    List<ReplicationController> items = replicationControllers.getItems();
    if (items == null) {
        items = Collections.EMPTY_LIST;
    }
    Filter<ReplicationController> filter = KubernetesHelper.createReplicationControllerFilter(filterText.getValue());
    for (ReplicationController item : items) {
        if (filter.matches(item)) {
            String id = KubernetesHelper.getName(item);
            String labels = KubernetesHelper.toLabelsString(item.getMetadata().getLabels());
            Integer replicas = null;
            ReplicationControllerSpec desiredState = item.getSpec();
            ReplicationControllerStatus currentState = item.getStatus();
            String selector = null;
            if (desiredState != null) {
                selector = KubernetesHelper.toLabelsString(desiredState.getSelector());
            }
            if (currentState != null) {
                replicas = currentState.getReplicas();
            }
            table.row(id, labels, toPositiveNonZeroText(replicas), selector);
        }
    }
    table.print();
}
 

public void applyReplicationController(ReplicationController replicationController, String sourceName) throws Exception {
    String namespace = getNamespace();
    String id = getName(replicationController);
    Objects.requireNonNull(id, "No name for " + replicationController + " " + sourceName);
    if (isServicesOnlyMode()) {
        log.debug("Only processing Services right now so ignoring ReplicationController: " + namespace + ":" + id);
        return;
    }
    ReplicationController old = kubernetesClient.replicationControllers().inNamespace(namespace).withName(id).get();
    if (isRunning(old)) {
        if (UserConfigurationCompare.configEqual(replicationController, old)) {
            log.info("ReplicationController has not changed so not doing anything");
        } else {
            ReplicationControllerSpec newSpec = replicationController.getSpec();
            ReplicationControllerSpec oldSpec = old.getSpec();
            if (rollingUpgrade) {
                log.info("Rolling upgrade of the ReplicationController: " + namespace + "/" + id);
                // lets preserve the number of replicas currently running in the environment we are about to upgrade
                if (rollingUpgradePreserveScale && newSpec != null && oldSpec != null) {
                    Integer replicas = oldSpec.getReplicas();
                    if (replicas != null) {
                        newSpec.setReplicas(replicas);
                    }
                }
                log.info("rollingUpgradePreserveScale " + rollingUpgradePreserveScale + " new replicas is " + (newSpec != null ? newSpec.getReplicas() : "<null>"));
                kubernetesClient.replicationControllers().inNamespace(namespace).withName(id).rolling().replace(replicationController);
            } else if (isRecreateMode()) {
                log.info("Deleting ReplicationController: " + id);
                kubernetesClient.replicationControllers().inNamespace(namespace).withName(id).delete();
                doCreateReplicationController(replicationController, namespace, sourceName);
            } else {
                log.info("Updating ReplicationController from " + sourceName + " namespace " + namespace + " name " + getName(replicationController));
                try {
                    Object answer = patchService.compareAndPatchEntity(namespace, replicationController, old);
                    logGeneratedEntity("Updated replicationController: ", namespace, replicationController, answer);

                    if (deletePodsOnReplicationControllerUpdate) {
                        kubernetesClient.pods().inNamespace(namespace).withLabels(newSpec.getSelector()).delete();
                        log.info("Deleting any pods for the replication controller to ensure they use the new configuration");
                    } else {
                        log.info("Warning not deleted any pods so they could well be running with the old configuration!");
                    }
                } catch (Exception e) {
                    onApplyError("Failed to update ReplicationController from " + sourceName + ". " + e + ". " + replicationController, e);
                }
            }
        }
    } else {
        if (!isAllowCreate()) {
            log.warn("Creation disabled so not creating a ReplicationController from " + sourceName + " namespace " + namespace + " name " + getName(replicationController));
        } else {
            doCreateReplicationController(replicationController, namespace, sourceName);
        }
    }
}