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// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.hosted.provision.provisioning;
import com.yahoo.component.Version;
import com.yahoo.config.provision.ApplicationId;
import com.yahoo.config.provision.ClusterMembership;
import com.yahoo.config.provision.ClusterSpec;
import com.yahoo.config.provision.Flavor;
import com.yahoo.config.provision.NodeFlavors;
import com.yahoo.config.provision.NodeType;
import com.yahoo.lang.MutableInteger;
import com.yahoo.vespa.hosted.provision.Node;
import com.yahoo.vespa.hosted.provision.NodeList;
import com.yahoo.vespa.hosted.provision.node.Allocation;
import com.yahoo.vespa.hosted.provision.node.Generation;
import com.yahoo.vespa.hosted.provision.node.History;
import com.yahoo.vespa.hosted.provision.node.Status;
import javax.swing.JFrame;
import java.time.Clock;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashSet;
import java.util.List;
import java.util.Optional;
import java.util.Set;
/**
* Graphically run allocation procedure to ease manual comprehension.
*
* Extremely useful when trying to understand test cases and build corner cases.
*/
public class AllocationSimulator {
private AllocationVisualizer visualizer;
private NodeList nodes;
private NodeFlavors flavors;
private AllocationSimulator(AllocationVisualizer visualizer) {
this.visualizer = visualizer;
//
// Setup flavors
//
FlavorConfigBuilder b = new FlavorConfigBuilder();
b.addFlavor("host-large", 8., 8., 8, Flavor.Type.BARE_METAL);
b.addFlavor("host-small", 5., 5., 5, Flavor.Type.BARE_METAL);
b.addFlavor("d-1", 1, 1., 1, Flavor.Type.DOCKER_CONTAINER);
b.addFlavor("d-2", 2, 2., 2, Flavor.Type.DOCKER_CONTAINER);
b.addFlavor("d-3", 3, 3., 3, Flavor.Type.DOCKER_CONTAINER);
b.addFlavor("d-3-disk", 3, 3., 5, Flavor.Type.DOCKER_CONTAINER);
b.addFlavor("d-3-mem", 3, 5., 3, Flavor.Type.DOCKER_CONTAINER);
b.addFlavor("d-3-cpu", 5, 3., 3, Flavor.Type.DOCKER_CONTAINER);
flavors = new NodeFlavors(b.build());
//
// Initiate nodes in system
//
List<Node> initialNodes = new ArrayList<>();
initialNodes.add(host("host1", flavors.getFlavorOrThrow("host-large")));
initialNodes.add(host("host2", flavors.getFlavorOrThrow("host-large")));
initialNodes.add(host("host3", flavors.getFlavorOrThrow("host-large")));
initialNodes.add(host("host4", flavors.getFlavorOrThrow("host-large")));
initialNodes.add(host("host5", flavors.getFlavorOrThrow("host-large")));
initialNodes.add(host("host6", flavors.getFlavorOrThrow("host-large")));
initialNodes.add(host("host7", flavors.getFlavorOrThrow("host-small")));
initialNodes.add(host("host8", flavors.getFlavorOrThrow("host-small")));
initialNodes.add(host("host9", flavors.getFlavorOrThrow("host-small")));
initialNodes.add(host("host10", flavors.getFlavorOrThrow("host-small")));
initialNodes.add(node("node1", flavors.getFlavorOrThrow("d-2"), Optional.of("host1"), Optional.of("test")));
nodes = new NodeList(initialNodes);
visualizer.addStep(nodes.asList(), "Initial state", "");
}
/* ------------ Create node and flavor methods ----------------*/
private Node host(String hostname, Flavor flavor) {
return node(hostname, flavor, Optional.empty(), Optional.empty());
}
private Node node(String hostname, Flavor flavor, Optional<String> parent, Optional<String> tenant) {
return new Node("fake", Collections.singleton("127.0.0.1"),
parent.isPresent() ? Collections.emptySet() : getAdditionalIP(), hostname, parent, flavor, Status.initial(),
parent.isPresent() ? Node.State.ready : Node.State.active, allocation(tenant), History.empty(), parent.isPresent() ? NodeType.tenant : NodeType.host);
}
private Set<String> getAdditionalIP() {
Set<String> h = new HashSet<String>();
Collections.addAll(h, "::1", "::2", "::3", "::4", "::5", "::6", "::7", "::8");
return h;
}
private Optional<Allocation> allocation(Optional<String> tenant) {
if (tenant.isPresent()) {
Allocation allocation = new Allocation(app(tenant.get()),
ClusterMembership.from("container/id1/3", new Version()),
Generation.inital(),
false);
return Optional.of(allocation);
}
return Optional.empty();
}
private ApplicationId app(String tenant) {
return new ApplicationId.Builder()
.tenant(tenant)
.applicationName("test")
.instanceName("default").build();
}
private ClusterSpec cluster() {
return ClusterSpec.from(ClusterSpec.Type.container, ClusterSpec.Id.from("test"), ClusterSpec.Group.from(1), Version.fromString("6.41"), false);
}
/* ------------ Methods to add events to the system ----------------*/
public void addCluster(String task, int count, Flavor flavor, String id) {
// TODO: Implement
NodeSpec.CountNodeSpec nodeSpec = new NodeSpec.CountNodeSpec(count, flavor, false, true);
nodes = new NodeList(nodes.asList());
}
public static void main(String[] args) {
AllocationVisualizer visualizer = new AllocationVisualizer();
javax.swing.SwingUtilities.invokeLater(() -> {
JFrame frame = new JFrame("Allocation Simulator");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setContentPane(visualizer);
frame.pack();
frame.setVisible(true);
});
AllocationSimulator simulator = new AllocationSimulator(visualizer);
simulator.addCluster("App1 : 3 * d-1 nodes", 3, simulator.flavors.getFlavorOrThrow("d-1"), "App1");
simulator.addCluster("App2 : 2 * d-2 nodes", 2, simulator.flavors.getFlavorOrThrow("d-2"), "App2");
simulator.addCluster("App3 : 3 * d-2 nodes", 3, simulator.flavors.getFlavorOrThrow("d-2"), "App3");
simulator.addCluster("App4 : 3 * d-3 nodes", 3, simulator.flavors.getFlavorOrThrow("d-3"), "App4");
simulator.addCluster("App5 : 3 * d-3 nodes", 3, simulator.flavors.getFlavorOrThrow("d-3"), "App5");
simulator.addCluster("App6 : 5 * d-2 nodes", 5, simulator.flavors.getFlavorOrThrow("d-2"), "App6");
}
}
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