use of io.kubernetes.client.custom.NodeMetrics in project java by kubernetes-client.
the class KubectlExample method main.
public static void main(String[] args) throws java.io.IOException, KubectlException, ParseException {
ApiClient client = Config.defaultClient();
Options options = new Options();
options.addOption(new Option("n", "namespace", true, "The namespace for the resource"));
options.addOption(new Option("r", "replicas", true, "The number of replicas to scale to"));
options.addOption(new Option("c", "container", true, "The container in a pod to connect to"));
DefaultParser parser = new DefaultParser();
CommandLine cli = parser.parse(options, args);
args = cli.getArgs();
String verb = args[0];
String ns = cli.getOptionValue("n", "default");
String kind = null;
String name = null;
switch(verb) {
case "delete":
kind = args[1];
name = args[2];
delete(getClassForKind(kind)).namespace(ns).name(name).execute();
case "drain":
name = args[1];
drain().apiClient(client).name(name).execute();
System.out.println("Node drained");
System.exit(0);
case "cordon":
name = args[1];
cordon().apiClient(client).name(name).execute();
System.out.println("Node cordoned");
System.exit(0);
case "uncordon":
name = args[1];
uncordon().apiClient(client).name(name).execute();
System.out.println("Node uncordoned");
System.exit(0);
case "top":
String what = args[1];
switch(what) {
case "nodes":
case "node":
List<Pair<V1Node, NodeMetrics>> nodes = top(V1Node.class, NodeMetrics.class).apiClient(client).metric("cpu").execute();
System.out.println(pad("Node") + "\tCPU\t\tMemory");
for (Pair<V1Node, NodeMetrics> node : nodes) {
System.out.println(pad(node.getLeft().getMetadata().getName()) + "\t" + node.getRight().getUsage().get("cpu").getNumber() + "\t" + node.getRight().getUsage().get("memory").getNumber());
}
System.exit(0);
case "pods":
case "pod":
List<Pair<V1Pod, PodMetrics>> pods = top(V1Pod.class, PodMetrics.class).apiClient(client).namespace(ns).metric("cpu").execute();
System.out.println(pad("Pod") + "\tCPU\t\tMemory");
for (Pair<V1Pod, PodMetrics> pod : pods) {
System.out.println(pad(pod.getLeft().getMetadata().getName()) + "\t" + podMetricSum(pod.getRight(), "cpu") + "\t" + podMetricSum(pod.getRight(), "memory"));
}
System.exit(0);
}
System.err.println("Unknown top argument: " + what);
System.exit(-1);
case "cp":
String from = args[1];
String to = args[2];
if (from.indexOf(":") != -1) {
String[] parts = from.split(":");
name = parts[0];
from = parts[1];
copy().apiClient(client).namespace(ns).name(name).container(cli.getOptionValue("c", "")).fromPod(from).to(to).execute();
} else if (to.indexOf(":") != -1) {
String[] parts = to.split(":");
name = parts[0];
to = parts[1];
copy().apiClient(client).namespace(ns).name(name).container(cli.getOptionValue("c", "")).from(from).toPod(to).execute();
} else {
System.err.println("Missing pod name for copy.");
System.exit(-1);
}
System.out.println("Copied " + from + " -> " + to);
System.exit(0);
case "taint":
name = args[1];
String taintSpec = args[2];
boolean remove = taintSpec.endsWith("-");
int ix = taintSpec.indexOf("=");
int ix2 = taintSpec.indexOf(":");
if (remove) {
taintSpec = taintSpec.substring(0, taintSpec.length() - 2);
String key = ix == -1 ? taintSpec : taintSpec.substring(0, ix);
String effect = ix == -1 ? null : taintSpec.substring(ix + 1);
if (effect == null) {
taint().apiClient(client).name(name).removeTaint(key).execute();
} else {
taint().apiClient(client).name(name).removeTaint(key, effect).execute();
}
System.exit(0);
}
if (ix2 == -1) {
System.err.println("key:effect or key=value:effect is required.");
System.exit(-1);
}
String key = taintSpec.substring(0, ix == -1 ? ix2 : ix);
String value = ix == -1 ? null : taintSpec.substring(ix + 1, ix2);
String effect = taintSpec.substring(ix2 + 1);
if (value == null) {
taint().apiClient(client).name(name).addTaint(key, effect).execute();
} else {
taint().apiClient(client).name(name).addTaint(key, value, effect).execute();
}
System.exit(0);
case "portforward":
name = args[1];
KubectlPortForward forward = portforward().apiClient(client).name(name).namespace(ns);
for (int i = 2; i < args.length; i++) {
String port = args[i];
String[] ports = port.split(":");
System.out.println("Forwarding " + ns + "/" + name + " " + ports[0] + "->" + ports[1]);
forward.ports(Integer.parseInt(ports[0]), Integer.parseInt(ports[1]));
}
forward.execute();
System.exit(0);
case "log":
name = args[1];
Streams.copy(log().apiClient(client).name(name).namespace(ns).container(cli.getOptionValue("c", "")).execute(), System.out);
System.exit(0);
case "scale":
kind = args[1];
name = args[2];
if (!cli.hasOption("r")) {
System.err.println("--replicas <n> is required");
System.exit(-3);
}
int replicas = Integer.parseInt(cli.getOptionValue("r"));
scale(getClassForKind(kind)).apiClient(client).namespace(ns).name(name).replicas(replicas).execute();
System.out.println("Deployment scaled.");
System.exit(0);
case "version":
System.out.println(version().apiClient(client));
System.exit(0);
case "label":
kind = args[1];
name = args[2];
String labelKey = args[3];
String labelValue = args[4];
Class<? extends KubernetesObject> clazz = getClassForKind(kind);
if (clazz == null) {
System.err.println("Unknown kind: " + kind);
System.exit(-2);
}
label(clazz).apiClient(client).namespace(ns).name(name).addLabel(labelKey, labelValue);
System.exit(0);
case "exec":
name = args[1];
String[] command = Arrays.copyOfRange(args, 2, args.length);
KubectlExec e = exec().apiClient(client).namespace(ns).name(name).command(command).container(cli.getOptionValue("c", ""));
System.exit(e.execute());
case "api-resources":
apiResources().apiClient(client).execute().stream().forEach(r -> System.out.printf("%s\t\t%s\t\t%s\t\t%s\n", r.getResourcePlural(), r.getGroup(), r.getKind(), r.getNamespaced()));
System.exit(0);
default:
System.out.println("Unknown verb: " + verb);
System.exit(-1);
}
}
use of io.kubernetes.client.custom.NodeMetrics in project java by kubernetes-client.
the class MetricsExample method main.
public static void main(String[] args) throws IOException, ApiException {
ApiClient client = Config.defaultClient();
Configuration.setDefaultApiClient(client);
Metrics metrics = new Metrics(client);
NodeMetricsList list = metrics.getNodeMetrics();
for (NodeMetrics item : list.getItems()) {
System.out.println(item.getMetadata().getName());
System.out.println("------------------------------");
for (String key : item.getUsage().keySet()) {
System.out.println("\t" + key);
System.out.println("\t" + item.getUsage().get(key));
}
System.out.println();
}
for (PodMetrics item : metrics.getPodMetrics("default").getItems()) {
System.out.println(item.getMetadata().getName());
System.out.println("------------------------------");
if (item.getContainers() == null) {
continue;
}
for (ContainerMetrics container : item.getContainers()) {
System.out.println(container.getName());
System.out.println("-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-");
for (String key : container.getUsage().keySet()) {
System.out.println("\t" + key);
System.out.println("\t" + container.getUsage().get(key));
}
System.out.println();
}
}
}
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