1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
|
// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.hosted.provision.testutils;
import com.yahoo.component.Version;
import com.yahoo.config.provision.ApplicationId;
import com.yahoo.config.provision.CloudAccount;
import com.yahoo.config.provision.ClusterSpec;
import com.yahoo.config.provision.Flavor;
import com.yahoo.config.provision.HostEvent;
import com.yahoo.config.provision.HostName;
import com.yahoo.config.provision.NodeAllocationException;
import com.yahoo.config.provision.NodeResources;
import com.yahoo.config.provision.NodeType;
import com.yahoo.vespa.hosted.provision.Node;
import com.yahoo.vespa.hosted.provision.node.Agent;
import com.yahoo.vespa.hosted.provision.node.IP;
import com.yahoo.vespa.hosted.provision.provisioning.FatalProvisioningException;
import com.yahoo.vespa.hosted.provision.provisioning.HostIpConfig;
import com.yahoo.vespa.hosted.provision.provisioning.HostProvisioner;
import com.yahoo.vespa.hosted.provision.provisioning.HostResourcesCalculator;
import com.yahoo.vespa.hosted.provision.provisioning.ProvisionedHost;
import java.time.Instant;
import java.util.ArrayList;
import java.util.Collections;
import java.util.EnumSet;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import java.util.Set;
import java.util.function.Consumer;
import java.util.stream.IntStream;
/**
* @author mpolden
*/
public class MockHostProvisioner implements HostProvisioner {
private final List<ProvisionedHost> provisionedHosts = new ArrayList<>();
private final List<HostEvent> hostEvents = new ArrayList<>();
private final List<Flavor> flavors;
private final MockNameResolver nameResolver;
private final int memoryTaxGb;
private final Set<String> rebuildsCompleted = new HashSet<>();
private int deprovisionedHosts = 0;
private EnumSet<Behaviour> behaviours = EnumSet.noneOf(Behaviour.class);
private final Map<ClusterSpec.Type, Flavor> hostFlavors = new HashMap<>();
public MockHostProvisioner(List<Flavor> flavors, MockNameResolver nameResolver, int memoryTaxGb) {
this.flavors = List.copyOf(flavors);
this.nameResolver = nameResolver;
this.memoryTaxGb = memoryTaxGb;
}
public MockHostProvisioner(List<Flavor> flavors) {
this(flavors, 0);
}
public MockHostProvisioner(List<Flavor> flavors, int memoryTaxGb) {
this(flavors, new MockNameResolver().mockAnyLookup(), memoryTaxGb);
}
@Override
public void provisionHosts(List<Integer> provisionIndices, NodeType hostType, NodeResources resources,
ApplicationId applicationId, Version osVersion, HostSharing sharing,
Optional<ClusterSpec.Type> clusterType, Optional<ClusterSpec.Id> clusterId,
CloudAccount cloudAccount, Consumer<List<ProvisionedHost>> provisionedHostsConsumer) {
Flavor hostFlavor = hostFlavors.get(clusterType.orElse(ClusterSpec.Type.content));
if (hostFlavor == null)
hostFlavor = flavors.stream()
.filter(f -> sharing == HostSharing.exclusive ? compatible(f, resources)
: f.resources().satisfies(resources))
.findFirst()
.orElseThrow(() -> new NodeAllocationException("No host flavor matches " + resources, true));
List<ProvisionedHost> hosts = new ArrayList<>();
for (int index : provisionIndices) {
String hostHostname = hostType == NodeType.host ? "host" + index : hostType.name() + index;
hosts.add(new ProvisionedHost("id-of-" + hostType.name() + index,
hostHostname,
hostFlavor,
hostType,
sharing == HostSharing.exclusive ? Optional.of(applicationId) : Optional.empty(),
Optional.empty(),
createHostnames(hostType, hostFlavor, index),
resources,
osVersion,
cloudAccount));
}
provisionedHosts.addAll(hosts);
provisionedHostsConsumer.accept(hosts);
}
@Override
public HostIpConfig provision(Node host, Set<Node> children) throws FatalProvisioningException {
if (behaviours.contains(Behaviour.failProvisioning)) throw new FatalProvisioningException("Failed to provision node(s)");
if (host.state() != Node.State.provisioned) throw new IllegalStateException("Host to provision must be in " + Node.State.provisioned);
Map<String, IP.Config> result = new HashMap<>();
result.put(host.hostname(), createIpConfig(host));
for (var child : children) {
if (child.state() != Node.State.reserved) throw new IllegalStateException("Child to provisioned must be in " + Node.State.reserved);
result.put(child.hostname(), createIpConfig(child));
}
return new HostIpConfig(result);
}
@Override
public void deprovision(Node host) {
if (behaviours.contains(Behaviour.failDeprovisioning)) throw new FatalProvisioningException("Failed to deprovision node");
provisionedHosts.removeIf(provisionedHost -> provisionedHost.hostHostname().equals(host.hostname()));
deprovisionedHosts++;
}
@Override
public Node replaceRootDisk(Node host) {
if (!host.type().isHost()) throw new IllegalArgumentException(host + " is not a host");
if (rebuildsCompleted.remove(host.hostname())) {
return host.withWantToRetire(host.status().wantToRetire(), host.status().wantToDeprovision(),
false, Agent.system, Instant.ofEpochMilli(123));
}
return host;
}
@Override
public List<HostEvent> hostEventsIn(List<CloudAccount> cloudAccounts) {
return Collections.unmodifiableList(hostEvents);
}
/** Returns the hosts that have been provisioned by this */
public List<ProvisionedHost> provisionedHosts() {
return Collections.unmodifiableList(provisionedHosts);
}
/** Returns the number of hosts deprovisioned by this */
public int deprovisionedHosts() {
return deprovisionedHosts;
}
public MockHostProvisioner with(Behaviour first, Behaviour... rest) {
this.behaviours = EnumSet.of(first, rest);
return this;
}
public MockHostProvisioner without(Behaviour first, Behaviour... rest) {
Set<Behaviour> behaviours = new HashSet<>(this.behaviours);
behaviours.removeAll(EnumSet.of(first, rest));
this.behaviours = behaviours.isEmpty() ? EnumSet.noneOf(Behaviour.class) : EnumSet.copyOf(behaviours);
return this;
}
public MockHostProvisioner completeRebuildOf(String hostname) {
rebuildsCompleted.add(hostname);
return this;
}
public MockHostProvisioner setHostFlavor(String flavorName, ClusterSpec.Type ... types) {
Flavor flavor = flavors.stream().filter(f -> f.name().equals(flavorName))
.findFirst()
.orElseThrow(() -> new IllegalArgumentException("No such flavor '" + flavorName + "'"));
if (types.length == 0)
types = ClusterSpec.Type.values();
for (var type : types)
hostFlavors.put(type, flavor);
return this;
}
/** Sets the host flavor to use to the flavor matching these resources exactly, if any. */
public MockHostProvisioner setHostFlavorIfAvailable(NodeResources flavorAdvertisedResources, HostResourcesCalculator calculator, ClusterSpec.Type ... types) {
Optional<Flavor> hostFlavor = flavors.stream().filter(f -> calculator.advertisedResourcesOf(f).compatibleWith(flavorAdvertisedResources))
.findFirst();
if (types.length == 0)
types = ClusterSpec.Type.values();
for (var type : types)
hostFlavor.ifPresent(f -> hostFlavors.put(type, f));
return this;
}
public Optional<Flavor> getHostFlavor(ClusterSpec.Type type) { return Optional.ofNullable(hostFlavors.get(type)); }
public MockHostProvisioner addEvent(HostEvent event) {
hostEvents.add(event);
return this;
}
public boolean compatible(Flavor flavor, NodeResources resources) {
NodeResources resourcesToVerify = resources.withMemoryGb(resources.memoryGb() - memoryTaxGb);
if (flavor.resources().storageType() == NodeResources.StorageType.remote
&& flavor.resources().diskGb() >= resources.diskGb())
resourcesToVerify = resourcesToVerify.withDiskGb(flavor.resources().diskGb());
if (flavor.resources().bandwidthGbps() >= resources.bandwidthGbps())
resourcesToVerify = resourcesToVerify.withBandwidthGbps(flavor.resources().bandwidthGbps());
return flavor.resources().compatibleWith(resourcesToVerify);
}
private List<HostName> createHostnames(NodeType hostType, Flavor flavor, int hostIndex) {
long numAddresses = Math.max(2, Math.round(flavor.resources().bandwidthGbps()));
return IntStream.range(1, (int) numAddresses)
.mapToObj(i -> {
String hostname = hostType == NodeType.host
? "host" + hostIndex + "-" + i
: hostType.childNodeType().name() + i;
return HostName.of(hostname);
})
.toList();
}
public IP.Config createIpConfig(Node node) {
if (!node.type().isHost()) {
return node.ipConfig().withPrimary(nameResolver.resolveAll(node.hostname()));
}
int hostIndex = Integer.parseInt(node.hostname().replaceAll("^[a-z]+|-\\d+$", ""));
Set<String> addresses = Set.of("::" + hostIndex + ":0");
Set<String> ipAddressPool = new HashSet<>();
if (!behaviours.contains(Behaviour.failDnsUpdate)) {
nameResolver.addRecord(node.hostname(), addresses.iterator().next());
for (int i = 1; i <= 2; i++) {
String ip = "::" + hostIndex + ":" + i;
ipAddressPool.add(ip);
nameResolver.addRecord(node.hostname() + "-" + i, ip);
}
}
IP.Pool pool = node.ipConfig().pool().withIpAddresses(ipAddressPool);
return node.ipConfig().withPrimary(addresses).withPool(pool);
}
public enum Behaviour {
/** Fail all calls to {@link MockHostProvisioner#provision(com.yahoo.vespa.hosted.provision.Node, java.util.Set)} */
failProvisioning,
/** Fail all calls to {@link MockHostProvisioner#deprovision(com.yahoo.vespa.hosted.provision.Node)} */
failDeprovisioning,
/** Fail DNS updates of provisioned hosts */
failDnsUpdate,
}
}
|
