@Override
public List<Pod> getPods() throws KubernetesClientException {
try {
return kubernetesClient.getPods().getItems();
} catch (Exception e) {
String msg = "Error while retrieving kubernetes pods.";
log.error(msg, e);
throw new KubernetesClientException(msg, e);
}
}
public static List<Pod> findPods(KubernetesClient client, Filter<Pod> filter)
throws MultiException {
List<Pod> pods = new ArrayList<>();
for (Pod pod : client.getPods().getItems()) {
if (filter.matches(pod)) {
pods.add(pod);
}
}
return pods;
}
public static void deletePods(KubernetesClient client, Logger logger, Filter<Pod> filter)
throws MultiException {
List<Throwable> errors = new ArrayList<>();
for (Pod pod : client.getPods().getItems()) {
if (filter.matches(pod)) {
try {
logger.info("Deleting pod:" + getId(pod));
client.deletePod(getId(pod));
} catch (Exception e) {
errors.add(e);
}
}
}
if (!errors.isEmpty()) {
throw new MultiException("Error while deleting pods", errors);
}
}
public static void cleanupAllMatching(
KubernetesClient client, String key, Session session, List<Throwable> errors)
throws MultiException {
Map<String, String> labels = Collections.singletonMap(key, session.getId());
Filter<Pod> podFilter = KubernetesHelper.createPodFilter(labels);
Filter<Service> serviceFilter = KubernetesHelper.createServiceFilter(labels);
Filter<ReplicationController> replicationControllerFilter =
KubernetesHelper.createReplicationControllerFilter(labels);
/** Lets use a loop to ensure we really do delete all the matching resources */
for (int i = 0; i < 10; i++) {
try {
deleteReplicationControllers(client, session.getLogger(), replicationControllerFilter);
} catch (MultiException e) {
errors.addAll(Arrays.asList(e.getCauses()));
}
try {
deletePods(client, session.getLogger(), podFilter);
} catch (MultiException e) {
errors.addAll(Arrays.asList(e.getCauses()));
}
try {
deleteServices(client, session.getLogger(), serviceFilter);
} catch (MultiException e) {
errors.addAll(Arrays.asList(e.getCauses()));
}
// lets see if there are any matching podList left
PodList podList = client.getPods();
List<Pod> filteredPods = Filters.filter(notNullList(podList.getItems()), podFilter);
if (filteredPods.isEmpty()) {
return;
} else {
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}
public static void displaySessionStatus(KubernetesClient client, Session session)
throws MultiException {
Map<String, String> labels = Collections.singletonMap(Constants.ARQ_KEY, session.getId());
Filter<Pod> podFilter = KubernetesHelper.createPodFilter(labels);
Filter<Service> serviceFilter = KubernetesHelper.createServiceFilter(labels);
Filter<ReplicationController> replicationControllerFilter =
KubernetesHelper.createReplicationControllerFilter(labels);
for (ReplicationController replicationController :
client.getReplicationControllers().getItems()) {
if (replicationControllerFilter.matches(replicationController)) {
session.getLogger().info("Replication controller:" + getId(replicationController));
}
}
for (Pod pod : client.getPods().getItems()) {
if (podFilter.matches(pod)) {
session
.getLogger()
.info("Pod:" + getId(pod) + " Status:" + pod.getCurrentState().getStatus());
}
}
for (Service service : client.getServices().getItems()) {
if (serviceFilter.matches(service)) {
session
.getLogger()
.info(
"Service:"
+ getId(service)
+ " IP:"
+ getPortalIP(service)
+ " Port:"
+ getPort(service));
}
}
}