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
244
245
246
247
248
249
250
251
252
253
254
|
// Copyright 2019 Oath Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.hosted.controller.maintenance;
import com.yahoo.config.provision.ApplicationId;
import com.yahoo.config.provision.ClusterSpec;
import com.yahoo.config.provision.Environment;
import com.yahoo.config.provision.HostName;
import com.yahoo.config.provision.RotationName;
import com.yahoo.config.provision.SystemName;
import com.yahoo.config.provision.zone.ZoneId;
import com.yahoo.vespa.hosted.controller.Application;
import com.yahoo.vespa.hosted.controller.api.identifiers.DeploymentId;
import com.yahoo.vespa.hosted.controller.api.integration.configserver.LoadBalancer;
import com.yahoo.vespa.hosted.controller.api.integration.deployment.JobType;
import com.yahoo.vespa.hosted.controller.api.integration.dns.Record;
import com.yahoo.vespa.hosted.controller.api.integration.dns.RecordName;
import com.yahoo.vespa.hosted.controller.application.ApplicationPackage;
import com.yahoo.vespa.hosted.controller.application.RoutingPolicy;
import com.yahoo.vespa.hosted.controller.deployment.ApplicationPackageBuilder;
import com.yahoo.vespa.hosted.controller.deployment.DeploymentTester;
import org.junit.Test;
import java.net.URI;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import java.util.Set;
import java.util.function.Supplier;
import java.util.stream.Collectors;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
/**
* @author mortent
* @author mpolden
*/
public class RoutingPoliciesTest {
private final DeploymentTester tester = new DeploymentTester();
private final Application app1 = tester.createApplication("app1", "tenant1", 1, 1L);
private final Application app2 = tester.createApplication("app2", "tenant1", 1, 1L);
private final ZoneId zone1 = ZoneId.from("prod", "us-west-1");
private final ZoneId zone2 = ZoneId.from("prod", "us-central-1");
private final ZoneId zone3 = ZoneId.from("prod", "us-east-3");
private final ApplicationPackage applicationPackage = new ApplicationPackageBuilder()
.region(zone1.region())
.region(zone2.region())
.build();
@Test
public void maintains_global_routing_policies() {
int buildNumber = 42;
int clustersPerZone = 2;
// Cluster 0 is member of 2 global rotations
Map<Integer, Set<RotationName>> rotations = Map.of(0, Set.of(RotationName.from("r0"), RotationName.from("r1")));
provisionLoadBalancers(clustersPerZone, rotations, app1.id(), zone1, zone2);
// Creates alias records for cluster0
tester.deployCompletely(app1, applicationPackage, ++buildNumber);
Supplier<List<Record>> records1 = () -> tester.controllerTester().nameService().findRecords(Record.Type.ALIAS, RecordName.from("r0.app1.tenant1.global.vespa.oath.cloud"));
Supplier<List<Record>> records2 = () -> tester.controllerTester().nameService().findRecords(Record.Type.ALIAS, RecordName.from("r1.app1.tenant1.global.vespa.oath.cloud"));
assertEquals(2, records1.get().size());
assertEquals(records1.get().size(), records2.get().size());
assertEquals("lb-0--tenant1:app1:default--prod.us-central-1/dns-zone-1/prod.us-central-1", records1.get().get(0).data().asString());
assertEquals("lb-0--tenant1:app1:default--prod.us-west-1/dns-zone-1/prod.us-west-1", records1.get().get(1).data().asString());
assertEquals("lb-0--tenant1:app1:default--prod.us-central-1/dns-zone-1/prod.us-central-1", records2.get().get(0).data().asString());
assertEquals("lb-0--tenant1:app1:default--prod.us-west-1/dns-zone-1/prod.us-west-1", records2.get().get(1).data().asString());
assertEquals(2, tester.controller().applications().routingPolicies().get(app1.id()).iterator().next()
.rotationEndpointsIn(SystemName.main).asList().size());
// Applications gains a new deployment
ApplicationPackage updatedApplicationPackage = new ApplicationPackageBuilder()
.environment(Environment.prod)
.region(zone1.region())
.region(zone2.region())
.region(zone3.region())
.build();
int numberOfDeployments = 3;
provisionLoadBalancers(clustersPerZone, rotations, app1.id(), zone3);
tester.deployCompletely(app1, updatedApplicationPackage, ++buildNumber);
// Cluster in new deployment is added to the rotation
assertEquals(numberOfDeployments, records1.get().size());
assertEquals("lb-0--tenant1:app1:default--prod.us-central-1/dns-zone-1/prod.us-central-1", records1.get().get(0).data().asString());
assertEquals("lb-0--tenant1:app1:default--prod.us-east-3/dns-zone-1/prod.us-east-3", records1.get().get(1).data().asString());
assertEquals("lb-0--tenant1:app1:default--prod.us-west-1/dns-zone-1/prod.us-west-1", records1.get().get(2).data().asString());
// Another application is deployed
Supplier<List<Record>> records3 = () -> tester.controllerTester().nameService().findRecords(Record.Type.ALIAS, RecordName.from("r0.app2.tenant1.global.vespa.oath.cloud"));
provisionLoadBalancers(1, Map.of(0, Set.of(RotationName.from("r0"))), app2.id(), zone1, zone2);
tester.deployCompletely(app2, applicationPackage);
assertEquals(2, records3.get().size());
assertEquals("lb-0--tenant1:app2:default--prod.us-central-1/dns-zone-1/prod.us-central-1", records3.get().get(0).data().asString());
assertEquals("lb-0--tenant1:app2:default--prod.us-west-1/dns-zone-1/prod.us-west-1", records3.get().get(1).data().asString());
// All rotations for app1 are removed
provisionLoadBalancers(clustersPerZone, Map.of(), app1.id(), zone1, zone2, zone3);
tester.deployCompletely(app1, updatedApplicationPackage, ++buildNumber);
assertEquals(List.of(), records1.get());
Set<RoutingPolicy> policies = tester.controller().curator().readRoutingPolicies(app1.id());
assertEquals(clustersPerZone * numberOfDeployments, policies.size());
assertTrue("Rotation membership is removed from all policies",
policies.stream().allMatch(policy -> policy.rotations().isEmpty()));
assertEquals("Rotations for " + app2 + " are not removed", 2, records3.get().size());
}
@Test
public void maintains_routing_policies_per_zone() {
// Deploy application
int clustersPerZone = 2;
int buildNumber = 42;
provisionLoadBalancers(clustersPerZone, app1.id(), zone1, zone2);
tester.deployCompletely(app1, applicationPackage, ++buildNumber);
// Deployment creates records and policies for all clusters in all zones
Set<String> expectedRecords = Set.of(
"c0.app1.tenant1.us-west-1.vespa.oath.cloud",
"c1.app1.tenant1.us-west-1.vespa.oath.cloud",
"c0.app1.tenant1.us-central-1.vespa.oath.cloud",
"c1.app1.tenant1.us-central-1.vespa.oath.cloud"
);
assertEquals(expectedRecords, recordNames());
assertEquals(4, policies(app1).size());
// Next deploy does nothing
tester.deployCompletely(app1, applicationPackage, ++buildNumber);
assertEquals(expectedRecords, recordNames());
assertEquals(4, policies(app1).size());
// Add 1 cluster in each zone and deploy
provisionLoadBalancers(clustersPerZone + 1, app1.id(), zone1, zone2);
tester.deployCompletely(app1, applicationPackage, ++buildNumber);
expectedRecords = Set.of(
"c0.app1.tenant1.us-west-1.vespa.oath.cloud",
"c1.app1.tenant1.us-west-1.vespa.oath.cloud",
"c2.app1.tenant1.us-west-1.vespa.oath.cloud",
"c0.app1.tenant1.us-central-1.vespa.oath.cloud",
"c1.app1.tenant1.us-central-1.vespa.oath.cloud",
"c2.app1.tenant1.us-central-1.vespa.oath.cloud"
);
assertEquals(expectedRecords, recordNames());
assertEquals(6, policies(app1).size());
// Deploy another application
provisionLoadBalancers(clustersPerZone, app2.id(), zone1, zone2);
tester.deployCompletely(app2, applicationPackage, ++buildNumber);
expectedRecords = Set.of(
"c0.app1.tenant1.us-west-1.vespa.oath.cloud",
"c1.app1.tenant1.us-west-1.vespa.oath.cloud",
"c2.app1.tenant1.us-west-1.vespa.oath.cloud",
"c0.app1.tenant1.us-central-1.vespa.oath.cloud",
"c1.app1.tenant1.us-central-1.vespa.oath.cloud",
"c2.app1.tenant1.us-central-1.vespa.oath.cloud",
"c0.app2.tenant1.us-central-1.vespa.oath.cloud",
"c1.app2.tenant1.us-central-1.vespa.oath.cloud",
"c0.app2.tenant1.us-west-1.vespa.oath.cloud",
"c1.app2.tenant1.us-west-1.vespa.oath.cloud"
);
assertEquals(expectedRecords, recordNames());
assertEquals(4, policies(app2).size());
// Deploy removes cluster from app1
provisionLoadBalancers(clustersPerZone, app1.id(), zone1, zone2);
tester.deployCompletely(app1, applicationPackage, ++buildNumber);
expectedRecords = Set.of(
"c0.app1.tenant1.us-west-1.vespa.oath.cloud",
"c1.app1.tenant1.us-west-1.vespa.oath.cloud",
"c0.app1.tenant1.us-central-1.vespa.oath.cloud",
"c1.app1.tenant1.us-central-1.vespa.oath.cloud",
"c0.app2.tenant1.us-central-1.vespa.oath.cloud",
"c1.app2.tenant1.us-central-1.vespa.oath.cloud",
"c0.app2.tenant1.us-west-1.vespa.oath.cloud",
"c1.app2.tenant1.us-west-1.vespa.oath.cloud"
);
assertEquals(expectedRecords, recordNames());
// Remove app2 completely
tester.controller().applications().require(app2.id()).deployments().keySet()
.forEach(zone -> {
tester.configServer().removeLoadBalancers(app2.id(), zone);
tester.controller().applications().deactivate(app2.id(), zone);
});
tester.flushDnsRequests();
expectedRecords = Set.of(
"c0.app1.tenant1.us-west-1.vespa.oath.cloud",
"c1.app1.tenant1.us-west-1.vespa.oath.cloud",
"c0.app1.tenant1.us-central-1.vespa.oath.cloud",
"c1.app1.tenant1.us-central-1.vespa.oath.cloud"
);
assertEquals(expectedRecords, recordNames());
assertTrue("Removes stale routing policies " + app2, tester.controller().applications().routingPolicies().get(app2.id()).isEmpty());
assertEquals("Keeps routing policies for " + app1, 4, tester.controller().applications().routingPolicies().get(app1.id()).size());
}
@Test
public void cluster_endpoints_resolve_from_policies() {
provisionLoadBalancers(3, app1.id(), zone1);
tester.deployCompletely(app1, applicationPackage);
tester.controllerTester().routingGenerator().putEndpoints(new DeploymentId(app1.id(), zone1), Collections.emptyList());
assertEquals(Map.of(ClusterSpec.Id.from("c0"),
URI.create("https://c0.app1.tenant1.us-west-1.vespa.oath.cloud/"),
ClusterSpec.Id.from("c1"),
URI.create("https://c1.app1.tenant1.us-west-1.vespa.oath.cloud/"),
ClusterSpec.Id.from("c2"),
URI.create("https://c2.app1.tenant1.us-west-1.vespa.oath.cloud/")),
tester.controller().applications().clusterEndpoints(new DeploymentId(app1.id(), zone1)));
}
private Set<RoutingPolicy> policies(Application application) {
return tester.controller().curator().readRoutingPolicies(application.id());
}
private Set<String> recordNames() {
return tester.controllerTester().nameService().records().stream()
.map(Record::name)
.map(RecordName::asString)
.collect(Collectors.toSet());
}
private void provisionLoadBalancers(int clustersPerZone, Map<Integer, Set<RotationName>> clusterRotations, ApplicationId application, ZoneId... zones) {
for (ZoneId zone : zones) {
tester.configServer().removeLoadBalancers(application, zone);
tester.configServer().addLoadBalancers(zone, createLoadBalancers(zone, application, clustersPerZone, clusterRotations));
}
}
private void provisionLoadBalancers(int clustersPerZone, ApplicationId application, ZoneId... zones) {
provisionLoadBalancers(clustersPerZone, Map.of(), application, zones);
}
private static List<LoadBalancer> createLoadBalancers(ZoneId zone, ApplicationId application, int count,
Map<Integer, Set<RotationName>> clusterRotations) {
List<LoadBalancer> loadBalancers = new ArrayList<>();
for (int i = 0; i < count; i++) {
Set<RotationName> rotations = clusterRotations.getOrDefault(i, Collections.emptySet());
loadBalancers.add(
new LoadBalancer("LB-" + i + "-Z-" + zone.value(),
application,
ClusterSpec.Id.from("c" + i),
HostName.from("lb-" + i + "--" + application.serializedForm() +
"--" + zone.value()),
Optional.of("dns-zone-1"),
rotations));
}
return loadBalancers;
}
}
|
