Merge pull request #4536 from vespa-engine/revert-4534-revert-4533-revert-4453-jvenstad/zone-cleanup-4

Revert "Revert "Revert "Jvenstad/zone cleanup 4"""

46 files changed, 120 insertions, 218 deletions

diff --git a/application-preprocessor/src/main/java/com/yahoo/application/preprocessor/ApplicationPreprocessor.java b/application-preprocessor/src/main/java/com/yahoo/application/preprocessor/ApplicationPreprocessor.java
index fa9dfe69c5d..303ce3e8d29 100644
--- a/application-preprocessor/src/main/java/com/yahoo/application/preprocessor/ApplicationPreprocessor.java
+++ b/application-preprocessor/src/main/java/com/yahoo/application/preprocessor/ApplicationPreprocessor.java
@@ -39,7 +39,7 @@ public class ApplicationPreprocessor {
         FilesApplicationPackage.Builder applicationPackageBuilder = new FilesApplicationPackage.Builder(applicationDir);
         outputDir.ifPresent(applicationPackageBuilder::preprocessedDir);
         ApplicationPackage preprocessed = applicationPackageBuilder.build().preprocess(
-                new Zone(environment.orElse(Environment.defaultEnvironment()), region.orElse(RegionName.defaultName())),
+                ZoneId.from(environment.orElse(Environment.defaultEnvironment()), region.orElse(RegionName.defaultName())),
                 (a, b) -> { },
                 logger);
         preprocessed.validateXML();
diff --git a/config-application-package/src/main/java/com/yahoo/config/model/application/provider/FilesApplicationPackage.java b/config-application-package/src/main/java/com/yahoo/config/model/application/provider/FilesApplicationPackage.java
index 97322fc1c55..330692abb1e 100644
--- a/config-application-package/src/main/java/com/yahoo/config/model/application/provider/FilesApplicationPackage.java
+++ b/config-application-package/src/main/java/com/yahoo/config/model/application/provider/FilesApplicationPackage.java
@@ -15,6 +15,7 @@ import com.yahoo.config.application.api.ApplicationFile;
 import com.yahoo.config.application.api.ApplicationPackage;
 import com.yahoo.config.provision.Version;
 import com.yahoo.config.provision.Zone;
+import com.yahoo.config.provision.ZoneId;
 import com.yahoo.path.Path;
 import com.yahoo.io.HexDump;
 import com.yahoo.io.IOUtils;
@@ -649,7 +650,7 @@ public class FilesApplicationPackage implements ApplicationPackage {
         return searchDefinitionContents();
     }
 
-    private void preprocessXML(File destination, File inputXml, Zone zone) throws ParserConfigurationException, TransformerException, SAXException, IOException {
+    private void preprocessXML(File destination, File inputXml, ZoneId zone) throws ParserConfigurationException, TransformerException, SAXException, IOException {
         Document document = new XmlPreProcessor(appDir, inputXml, zone.environment(), zone.region()).run();
         Transformer transformer = TransformerFactory.newInstance().newTransformer();
         try (FileOutputStream outputStream = new FileOutputStream(destination)) {
@@ -658,7 +659,7 @@ public class FilesApplicationPackage implements ApplicationPackage {
     }
 
     @Override
-    public ApplicationPackage preprocess(Zone zone, RuleConfigDeriver ignored, DeployLogger logger) throws IOException, TransformerException, ParserConfigurationException, SAXException {
+    public ApplicationPackage preprocess(ZoneId zone, RuleConfigDeriver ignored, DeployLogger logger) throws IOException, TransformerException, ParserConfigurationException, SAXException {
         IOUtils.recursiveDeleteDir(preprocessedDir);
         IOUtils.copyDirectory(appDir, preprocessedDir, -1, (dir, name) -> ! name.equals(".preprocessed") &&
                                                                           ! name.equals(SERVICES) &&
diff --git a/config-application-package/src/test/java/com/yahoo/config/model/application/provider/FilesApplicationPackageTest.java b/config-application-package/src/test/java/com/yahoo/config/model/application/provider/FilesApplicationPackageTest.java
index 89a5769ff0c..2dfaf440084 100644
--- a/config-application-package/src/test/java/com/yahoo/config/model/application/provider/FilesApplicationPackageTest.java
+++ b/config-application-package/src/test/java/com/yahoo/config/model/application/provider/FilesApplicationPackageTest.java
@@ -2,10 +2,12 @@
 package com.yahoo.config.model.application.provider;
 
 import com.yahoo.config.application.TestBase;
+import com.yahoo.config.application.api.RuleConfigDeriver;
 import com.yahoo.config.application.api.ApplicationPackage;
 import com.yahoo.config.provision.Environment;
 import com.yahoo.config.provision.RegionName;
 import com.yahoo.config.provision.Zone;
+import com.yahoo.config.provision.ZoneId;
 import com.yahoo.io.IOUtils;
 import org.junit.Rule;
 import org.junit.Test;
@@ -40,7 +42,7 @@ public class FilesApplicationPackageTest {
         assertTrue(new File(appDir, "hosts.xml").exists());
         FilesApplicationPackage app = FilesApplicationPackage.fromFile(appDir);
 
-        ApplicationPackage processed = app.preprocess(new Zone(Environment.dev, RegionName.defaultName()),
+        ApplicationPackage processed = app.preprocess(ZoneId.from(Environment.dev, RegionName.defaultName()),
                                                       (ruleBaseDir, outputDir) -> {},
                                                       new BaseDeployLogger());
         assertTrue(new File(appDir, ".preprocessed").exists());
diff --git a/config-model-api/src/main/java/com/yahoo/config/application/api/ApplicationPackage.java b/config-model-api/src/main/java/com/yahoo/config/application/api/ApplicationPackage.java
index 7506c884715..e8236d9eab4 100644
--- a/config-model-api/src/main/java/com/yahoo/config/application/api/ApplicationPackage.java
+++ b/config-model-api/src/main/java/com/yahoo/config/application/api/ApplicationPackage.java
@@ -4,7 +4,7 @@ package com.yahoo.config.application.api;
 import com.yahoo.config.provision.AllocatedHosts;
 import com.yahoo.config.provision.Version;
 import com.yahoo.config.provision.Zone;
-import com.yahoo.path.Path;
+import com.yahoo.config.provision.ZoneId;
 import com.yahoo.io.IOUtils;
 import com.yahoo.io.reader.NamedReader;
 import com.yahoo.path.Path;
@@ -265,15 +265,25 @@ public interface ApplicationPackage {
      * application package. This is the entry point for the multi environment application package support. This method
      * will not mutate the existing application package.
      *
-     * @param zone A valid {@link Zone} instance, used to decide which parts of services to keep and remove
+     * @param zone A valid {@link ZoneId} instance, used to decide which parts of services to keep and remove
      * @param ruleConfigDeriver ignored
      * @param logger A {@link DeployLogger} to add output that will be returned to the user
      *
      * @return A new application package instance pointing to a new location
      */
-    default ApplicationPackage preprocess(Zone zone, RuleConfigDeriver ruleConfigDeriver, DeployLogger logger) 
-        throws IOException, TransformerException, ParserConfigurationException, SAXException {
+    default ApplicationPackage preprocess(ZoneId zone, RuleConfigDeriver ruleConfigDeriver, DeployLogger logger)
+            throws IOException, TransformerException, ParserConfigurationException, SAXException {
         throw new UnsupportedOperationException("This application package does not support preprocessing");
     }
 
+    /**
+     * @deprecated pass a ZoneId as first parameter instead
+     */
+    // TODO: Remove on Vespa 7
+    @Deprecated
+    default ApplicationPackage preprocess(Zone zone, RuleConfigDeriver ruleConfigDeriver, DeployLogger logger)
+            throws IOException, TransformerException, ParserConfigurationException, SAXException {
+        return preprocess(zone.id(), ruleConfigDeriver, logger);
+    }
+
 }
diff --git a/config-provisioning/src/main/java/com/yahoo/config/provision/Zone.java b/config-provisioning/src/main/java/com/yahoo/config/provision/Zone.java
index fbbdb1df635..26c20d56d63 100644
--- a/config-provisioning/src/main/java/com/yahoo/config/provision/Zone.java
+++ b/config-provisioning/src/main/java/com/yahoo/config/provision/Zone.java
@@ -20,8 +20,7 @@ public class Zone {
     private final SystemName systemName;
     private final FlavorDefaults flavorDefaults;
     private final Optional<NodeFlavors> nodeFlavors;
-    private final Environment environment;
-    private final RegionName region;
+    private final ZoneId id;
 
     @Inject
     public Zone(ConfigserverConfig configserverConfig, NodeFlavors nodeFlavors) {
@@ -47,21 +46,25 @@ public class Zone {
                  RegionName region,
                  FlavorDefaults flavorDefaults,
                  NodeFlavors nodeFlavors) {
-        this.environment = environment;
-        this.region = region;
+        this.id = ZoneId.from(environment, region);
         this.flavorDefaults = flavorDefaults;
         this.systemName = systemName;
         this.nodeFlavors = Optional.ofNullable(nodeFlavors);
     }
 
+    /** Returns the id of this */
+    public ZoneId id() {
+        return id;
+    }
+
     /** Returns the current environment */
     public Environment environment() {
-        return environment;
+        return id.environment();
     }
 
     /** Returns the current region */
     public RegionName region() {
-        return region;
+        return id.region();
     }
 
     /** Returns the current system */
@@ -80,21 +83,19 @@ public class Zone {
 
     @Override
     public String toString() {
-        return "zone " + environment + "." + region;
+        return id.toString();
     }
 
     @Override
     public boolean equals(Object o) {
         if (this == o) return true;
-        if (!(o instanceof Zone)) return false;
-        Zone zone = (Zone) o;
-        return environment == zone.environment &&
-               Objects.equals(region, zone.region);
+        if ( ! (o instanceof Zone)) return false;
+        return Objects.equals(id, ((Zone) o).id);
     }
 
     @Override
     public int hashCode() {
-        return Objects.hash(environment, region);
+        return id.hashCode();
     }
 
     private static class FlavorDefaults {
diff --git a/controller-api/src/main/java/com/yahoo/vespa/hosted/controller/api/integration/zone/ZoneId.java b/config-provisioning/src/main/java/com/yahoo/config/provision/ZoneId.java
index 21ac7a654b8..d51a8d5e0c9 100644
--- a/controller-api/src/main/java/com/yahoo/vespa/hosted/controller/api/integration/zone/ZoneId.java
+++ b/config-provisioning/src/main/java/com/yahoo/config/provision/ZoneId.java
@@ -1,8 +1,5 @@
 // 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.controller.api.integration.zone;
-
-import com.yahoo.config.provision.Environment;
-import com.yahoo.config.provision.RegionName;
+package com.yahoo.config.provision;
 
 import java.util.Objects;
 
@@ -14,7 +11,7 @@ import java.util.Objects;
  * @author jvenstad
  */
 public class ZoneId {
-    // TODO: Replace usages of environment + region with usages of this.
+    // TODO: Replace usages of zone + region with usages of this.
 
     private final Environment environment;
     private final RegionName region;
diff --git a/configserver/src/main/java/com/yahoo/vespa/config/server/session/SessionPreparer.java b/configserver/src/main/java/com/yahoo/vespa/config/server/session/SessionPreparer.java
index 70db406bd53..24666f42dc9 100644
--- a/configserver/src/main/java/com/yahoo/vespa/config/server/session/SessionPreparer.java
+++ b/configserver/src/main/java/com/yahoo/vespa/config/server/session/SessionPreparer.java
@@ -178,7 +178,7 @@ public class SessionPreparer {
 
         void preprocess() {
             try {
-                this.applicationPackage = context.getApplicationPackage().preprocess(properties.zone(), null, logger);
+                this.applicationPackage = context.getApplicationPackage().preprocess(properties.zone().id(), null, logger);
             } catch (IOException | TransformerException | ParserConfigurationException | SAXException e) {
                 throw new RuntimeException("Error deploying application package", e);
             }
diff --git a/controller-api/src/main/java/com/yahoo/vespa/hosted/controller/api/identifiers/DeploymentId.java b/controller-api/src/main/java/com/yahoo/vespa/hosted/controller/api/identifiers/DeploymentId.java
index 04dd91670c1..f1c584c7a3c 100644
--- a/controller-api/src/main/java/com/yahoo/vespa/hosted/controller/api/identifiers/DeploymentId.java
+++ b/controller-api/src/main/java/com/yahoo/vespa/hosted/controller/api/identifiers/DeploymentId.java
@@ -1,7 +1,7 @@
 // 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.controller.api.identifiers;
 
-import com.yahoo.vespa.hosted.controller.api.integration.zone.ZoneId;
+import com.yahoo.config.provision.ZoneId;
 
 import java.util.Objects;
 
diff --git a/controller-api/src/main/java/com/yahoo/vespa/hosted/controller/api/integration/MetricsService.java b/controller-api/src/main/java/com/yahoo/vespa/hosted/controller/api/integration/MetricsService.java
index 20e9710f092..d3e1b881bbd 100644
--- a/controller-api/src/main/java/com/yahoo/vespa/hosted/controller/api/integration/MetricsService.java
+++ b/controller-api/src/main/java/com/yahoo/vespa/hosted/controller/api/integration/MetricsService.java
@@ -2,7 +2,7 @@
 package com.yahoo.vespa.hosted.controller.api.integration;
 
 import com.yahoo.config.provision.ApplicationId;
-import com.yahoo.vespa.hosted.controller.api.integration.zone.ZoneId;
+import com.yahoo.config.provision.ZoneId;
 
 import java.util.Map;
 
diff --git a/controller-api/src/main/java/com/yahoo/vespa/hosted/controller/api/integration/zone/ZoneFilter.java b/controller-api/src/main/java/com/yahoo/vespa/hosted/controller/api/integration/zone/ZoneFilter.java
deleted file mode 100644
index f718b86ca40..00000000000
--- a/controller-api/src/main/java/com/yahoo/vespa/hosted/controller/api/integration/zone/ZoneFilter.java
+++ /dev/null
@@ -1,22 +0,0 @@
-package com.yahoo.vespa.hosted.controller.api.integration.zone;
-
-/**
- * A ZoneId list which can be filtered in various ways; elements can be accessed after at least one filter.
- *
- * The methods here return instances of {@link ZoneList}, which extends ZoneFilter, but with accessors and additional filters.
- * This forces the developer to consider which of the filters in this class to apply, prior to processing any zones.
- *
- * @author jvenstad
- */
-public interface ZoneFilter {
-
-    /** Negates the next filter. */
-    ZoneFilter not();
-
-    /** All zones from the initial pool. */
-    ZoneList all();
-
-    /** Zones where which are managed by the controller. */
-    ZoneList controllerManaged();
-
-}
diff --git a/controller-api/src/main/java/com/yahoo/vespa/hosted/controller/api/integration/zone/ZoneFilterMock.java b/controller-api/src/main/java/com/yahoo/vespa/hosted/controller/api/integration/zone/ZoneFilterMock.java
deleted file mode 100644
index e68bf0ccc24..00000000000
--- a/controller-api/src/main/java/com/yahoo/vespa/hosted/controller/api/integration/zone/ZoneFilterMock.java
+++ /dev/null
@@ -1,72 +0,0 @@
-package com.yahoo.vespa.hosted.controller.api.integration.zone;
-
-import com.yahoo.config.provision.Environment;
-import com.yahoo.config.provision.RegionName;
-
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.Collection;
-import java.util.Collections;
-import java.util.HashSet;
-import java.util.function.Predicate;
-import java.util.stream.Collectors;
-
-/**
- * A Zones.List implementation which assumes all zones are controllerManaged.
- *
- * @author jvenstad
- */
-public class ZoneFilterMock implements ZoneList {
-
-    private final java.util.List<ZoneId> zones;
-    private final boolean negate;
-
-    private ZoneFilterMock(java.util.List<ZoneId> zones, boolean negate) {
-        this.negate = negate;
-        this.zones = zones;
-    }
-
-    public static ZoneFilter from(Collection<ZoneId> zones) {
-        return new ZoneFilterMock(new ArrayList<>(zones), false);
-    }
-
-    @Override
-    public ZoneList not() {
-        return new ZoneFilterMock(zones, ! negate);
-    }
-
-    @Override
-    public ZoneList all() {
-        return filter(zoneId -> true);
-    }
-
-    @Override
-    public ZoneList controllerManaged() {
-        return all();
-    }
-
-    @Override
-    public ZoneList in(Environment environment) {
-        return filter(zoneId -> zoneId.environment() == environment);
-    }
-
-    @Override
-    public ZoneList in(RegionName region) {
-        return filter(zoneId -> zoneId.region().equals(region));
-    }
-
-    @Override
-    public ZoneList zones(ZoneId... zones) {
-        return filter(zoneId -> new HashSet<>(Arrays.asList(zones)).contains(zoneId));
-    }
-
-    @Override
-    public java.util.List<ZoneId> ids() {
-        return Collections.unmodifiableList(zones);
-    }
-
-    private ZoneFilterMock filter(Predicate<ZoneId> condition) {
-        return new ZoneFilterMock(zones.stream().filter(negate ? condition.negate() : condition).collect(Collectors.toList()), false);
-    }
-
-}
diff --git a/controller-api/src/main/java/com/yahoo/vespa/hosted/controller/api/integration/zone/ZoneList.java b/controller-api/src/main/java/com/yahoo/vespa/hosted/controller/api/integration/zone/ZoneList.java
deleted file mode 100644
index cd263769864..00000000000
--- a/controller-api/src/main/java/com/yahoo/vespa/hosted/controller/api/integration/zone/ZoneList.java
+++ /dev/null
@@ -1,34 +0,0 @@
-package com.yahoo.vespa.hosted.controller.api.integration.zone;
-
-import com.yahoo.config.provision.Environment;
-import com.yahoo.config.provision.RegionName;
-
-import java.util.List;
-
-/**
- * Provides filters for and access to a list of ZoneIds.
- *
- * This is typically offered after an initial filter from {@link ZoneFilter} has been applied.
- * This forces the developer to consider which zones to process.
- *
- * @author jvenstad
- */
-public interface ZoneList extends ZoneFilter {
-
-    /** Negates the next filter. */
-    @Override
-    ZoneList not();
-
-    /** Zones in the given environment. */
-    ZoneList in(Environment environment);
-
-    /** Zones in the given region. */
-    ZoneList in(RegionName region);
-
-    /** Only the given zones — combine with not() for best effect! */
-    ZoneList zones(ZoneId... zones);
-
-    /** Returns the id of all zones in this list as — you guessed it — a list. */
-    List<ZoneId> ids();
-
-}
diff --git a/controller-api/src/main/java/com/yahoo/vespa/hosted/controller/api/integration/zone/ZoneRegistry.java b/controller-api/src/main/java/com/yahoo/vespa/hosted/controller/api/integration/zone/ZoneRegistry.java
index 03207d86983..af7c464b8d7 100644
--- a/controller-api/src/main/java/com/yahoo/vespa/hosted/controller/api/integration/zone/ZoneRegistry.java
+++ b/controller-api/src/main/java/com/yahoo/vespa/hosted/controller/api/integration/zone/ZoneRegistry.java
@@ -1,9 +1,11 @@
 // 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.controller.api.integration.zone;
 
+import com.yahoo.config.provision.ApplicationId;
 import com.yahoo.config.provision.Environment;
 import com.yahoo.config.provision.RegionName;
 import com.yahoo.config.provision.SystemName;
+import com.yahoo.config.provision.ZoneId;
 import com.yahoo.vespa.hosted.controller.api.identifiers.DeploymentId;
 
 import java.net.URI;
@@ -22,7 +24,7 @@ public interface ZoneRegistry {
     boolean hasZone(ZoneId zoneId);
 
     /** Returns a list containing the id of all zones in this registry. */
-    ZoneFilter zones();
+    List<ZoneId> zones();
 
     /** Returns the default region for the given environment, if one is configured. */
     Optional<RegionName> getDefaultRegion(Environment environment);
@@ -37,7 +39,7 @@ public interface ZoneRegistry {
     /** Returns a list with all known config servers in the given zone, with a secure connection URL. */
     List<URI> getConfigServerSecureUris(ZoneId zoneId);
 
-    /** Returns a URL with the logs for the given deployment, if logging is configured for its zone. */
+    /** Returns a URL with the logs for the given deployment, if loggin is configured for its zone. */
     Optional<URI> getLogServerUri(DeploymentId deploymentId);
 
     /** Returns the time to live for deployments in the given zone, or empty if this is infinite. */
diff --git a/controller-api/src/test/java/com/yahoo/vespa/hosted/controller/api/identifiers/IdentifierTest.java b/controller-api/src/test/java/com/yahoo/vespa/hosted/controller/api/identifiers/IdentifierTest.java
index 0ba607a235b..aa3d1be879e 100644
--- a/controller-api/src/test/java/com/yahoo/vespa/hosted/controller/api/identifiers/IdentifierTest.java
+++ b/controller-api/src/test/java/com/yahoo/vespa/hosted/controller/api/identifiers/IdentifierTest.java
@@ -1,7 +1,9 @@
 // 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.controller.api.identifiers;
 
-import com.yahoo.vespa.hosted.controller.api.integration.zone.ZoneId;
+import com.yahoo.config.provision.Environment;
+import com.yahoo.config.provision.RegionName;
+import com.yahoo.config.provision.ZoneId;
 import org.junit.Test;
 
 import static org.junit.Assert.assertEquals;
diff --git a/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/Application.java b/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/Application.java
index b75f80917a9..ae2de96f511 100644
--- a/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/Application.java
+++ b/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/Application.java
@@ -7,7 +7,7 @@ import com.yahoo.config.application.api.DeploymentSpec;
 import com.yahoo.config.application.api.ValidationOverrides;
 import com.yahoo.config.provision.ApplicationId;
 import com.yahoo.config.provision.Environment;
-import com.yahoo.vespa.hosted.controller.api.integration.zone.ZoneId;
+import com.yahoo.config.provision.ZoneId;
 import com.yahoo.vespa.hosted.controller.api.integration.MetricsService.ApplicationMetrics;
 import com.yahoo.vespa.hosted.controller.api.integration.organization.IssueId;
 import com.yahoo.vespa.hosted.controller.application.ApplicationRotation;
diff --git a/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/ApplicationController.java b/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/ApplicationController.java
index 28fa311b841..ec1051a3674 100644
--- a/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/ApplicationController.java
+++ b/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/ApplicationController.java
@@ -7,7 +7,7 @@ import com.yahoo.config.application.api.ValidationId;
 import com.yahoo.config.provision.ApplicationId;
 import com.yahoo.config.provision.Environment;
 import com.yahoo.config.provision.TenantName;
-import com.yahoo.vespa.hosted.controller.api.integration.zone.ZoneId;
+import com.yahoo.config.provision.ZoneId;
 import com.yahoo.vespa.curator.Lock;
 import com.yahoo.vespa.hosted.controller.api.ActivateResult;
 import com.yahoo.vespa.hosted.controller.api.InstanceEndpoints;
diff --git a/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/Controller.java b/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/Controller.java
index e2fca415f4e..f50958f0e66 100644
--- a/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/Controller.java
+++ b/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/Controller.java
@@ -7,7 +7,7 @@ import com.yahoo.component.AbstractComponent;
 import com.yahoo.component.Version;
 import com.yahoo.component.Vtag;
 import com.yahoo.config.provision.SystemName;
-import com.yahoo.vespa.hosted.controller.api.integration.zone.ZoneId;
+import com.yahoo.config.provision.ZoneId;
 import com.yahoo.vespa.hosted.controller.api.identifiers.AthenzDomain;
 import com.yahoo.vespa.hosted.controller.api.identifiers.DeploymentId;
 import com.yahoo.vespa.hosted.controller.api.identifiers.Property;
diff --git a/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/LockedApplication.java b/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/LockedApplication.java
index 5fa5b8c318b..72ed1a42435 100644
--- a/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/LockedApplication.java
+++ b/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/LockedApplication.java
@@ -5,7 +5,8 @@ import com.yahoo.config.application.api.DeploymentSpec;
 import com.yahoo.config.application.api.ValidationOverrides;
 import com.yahoo.config.provision.ApplicationId;
 import com.yahoo.config.provision.ClusterSpec;
-import com.yahoo.vespa.hosted.controller.api.integration.zone.ZoneId;
+import com.yahoo.config.provision.Zone;
+import com.yahoo.config.provision.ZoneId;
 import com.yahoo.vespa.curator.Lock;
 import com.yahoo.vespa.hosted.controller.api.integration.MetricsService;
 import com.yahoo.vespa.hosted.controller.api.integration.MetricsService.ApplicationMetrics;
diff --git a/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/application/Deployment.java b/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/application/Deployment.java
index 2364e87b345..b9d07249cb2 100644
--- a/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/application/Deployment.java
+++ b/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/application/Deployment.java
@@ -3,7 +3,8 @@ package com.yahoo.vespa.hosted.controller.application;
 
 import com.yahoo.component.Version;
 import com.yahoo.config.provision.ClusterSpec.Id;
-import com.yahoo.vespa.hosted.controller.api.integration.zone.ZoneId;
+import com.yahoo.config.provision.Zone;
+import com.yahoo.config.provision.ZoneId;
 
 import java.time.Instant;
 import java.util.HashMap;
diff --git a/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/application/DeploymentJobs.java b/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/application/DeploymentJobs.java
index 5b104f19937..ec8b2d6d019 100644
--- a/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/application/DeploymentJobs.java
+++ b/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/application/DeploymentJobs.java
@@ -7,7 +7,7 @@ import com.yahoo.config.provision.ApplicationId;
 import com.yahoo.config.provision.Environment;
 import com.yahoo.config.provision.RegionName;
 import com.yahoo.config.provision.SystemName;
-import com.yahoo.vespa.hosted.controller.api.integration.zone.ZoneId;
+import com.yahoo.config.provision.ZoneId;
 import com.yahoo.vespa.hosted.controller.Controller;
 import com.yahoo.vespa.hosted.controller.api.integration.organization.IssueId;
 
diff --git a/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/deployment/DeploymentOrder.java b/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/deployment/DeploymentOrder.java
index dd7befb6d63..2bf64571bdf 100644
--- a/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/deployment/DeploymentOrder.java
+++ b/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/deployment/DeploymentOrder.java
@@ -2,7 +2,7 @@
 package com.yahoo.vespa.hosted.controller.deployment;
 
 import com.yahoo.config.application.api.DeploymentSpec;
-import com.yahoo.vespa.hosted.controller.api.integration.zone.ZoneId;
+import com.yahoo.config.provision.ZoneId;
 import com.yahoo.vespa.hosted.controller.Application;
 import com.yahoo.vespa.hosted.controller.Controller;
 import com.yahoo.vespa.hosted.controller.LockedApplication;
diff --git a/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/deployment/DeploymentTrigger.java b/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/deployment/DeploymentTrigger.java
index 6a9db3ae917..192901165be 100644
--- a/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/deployment/DeploymentTrigger.java
+++ b/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/deployment/DeploymentTrigger.java
@@ -4,7 +4,7 @@ package com.yahoo.vespa.hosted.controller.deployment;
 import com.yahoo.component.Version;
 import com.yahoo.config.provision.ApplicationId;
 import com.yahoo.config.provision.SystemName;
-import com.yahoo.vespa.hosted.controller.api.integration.zone.ZoneId;
+import com.yahoo.config.provision.ZoneId;
 import com.yahoo.vespa.hosted.controller.Application;
 import com.yahoo.vespa.hosted.controller.ApplicationController;
 import com.yahoo.vespa.hosted.controller.Controller;
diff --git a/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/maintenance/ClusterInfoMaintainer.java b/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/maintenance/ClusterInfoMaintainer.java
index cf0600f87bd..ad7fa90967b 100644
--- a/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/maintenance/ClusterInfoMaintainer.java
+++ b/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/maintenance/ClusterInfoMaintainer.java
@@ -2,7 +2,9 @@
 package com.yahoo.vespa.hosted.controller.maintenance;
 
 import com.yahoo.config.provision.ClusterSpec;
-import com.yahoo.vespa.hosted.controller.api.integration.zone.ZoneId;
+import com.yahoo.config.provision.Flavor;
+import com.yahoo.config.provision.Zone;
+import com.yahoo.config.provision.ZoneId;
 import com.yahoo.vespa.hosted.controller.Application;
 import com.yahoo.vespa.hosted.controller.Controller;
 import com.yahoo.vespa.hosted.controller.api.identifiers.DeploymentId;
@@ -16,6 +18,7 @@ import java.time.Duration;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import java.util.Optional;
 import java.util.logging.Level;
 import java.util.logging.Logger;
 import java.util.stream.Collectors;
diff --git a/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/maintenance/ClusterUtilizationMaintainer.java b/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/maintenance/ClusterUtilizationMaintainer.java
index b889179750e..58e32344372 100644
--- a/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/maintenance/ClusterUtilizationMaintainer.java
+++ b/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/maintenance/ClusterUtilizationMaintainer.java
@@ -3,7 +3,7 @@ package com.yahoo.vespa.hosted.controller.maintenance;
 
 import com.yahoo.config.provision.ApplicationId;
 import com.yahoo.config.provision.ClusterSpec;
-import com.yahoo.vespa.hosted.controller.api.integration.zone.ZoneId;
+import com.yahoo.config.provision.ZoneId;
 import com.yahoo.vespa.hosted.controller.Application;
 import com.yahoo.vespa.hosted.controller.Controller;
 import com.yahoo.vespa.hosted.controller.api.integration.MetricsService;
diff --git a/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/persistence/ApplicationSerializer.java b/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/persistence/ApplicationSerializer.java
index 9c77ebc4bc3..762f12c3e8a 100644
--- a/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/persistence/ApplicationSerializer.java
+++ b/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/persistence/ApplicationSerializer.java
@@ -6,7 +6,9 @@ import com.yahoo.config.application.api.DeploymentSpec;
 import com.yahoo.config.application.api.ValidationOverrides;
 import com.yahoo.config.provision.ApplicationId;
 import com.yahoo.config.provision.ClusterSpec;
-import com.yahoo.vespa.hosted.controller.api.integration.zone.ZoneId;
+import com.yahoo.config.provision.Environment;
+import com.yahoo.config.provision.RegionName;
+import com.yahoo.config.provision.ZoneId;
 import com.yahoo.slime.ArrayTraverser;
 import com.yahoo.slime.Cursor;
 import com.yahoo.slime.Inspector;
diff --git a/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/proxy/ConfigServerRestExecutorImpl.java b/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/proxy/ConfigServerRestExecutorImpl.java
index e8689a06162..e67b96c22ad 100644
--- a/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/proxy/ConfigServerRestExecutorImpl.java
+++ b/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/proxy/ConfigServerRestExecutorImpl.java
@@ -4,10 +4,10 @@ package com.yahoo.vespa.hosted.controller.proxy;
 import com.fasterxml.jackson.databind.JsonNode;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.yahoo.config.provision.Environment;
-import com.yahoo.vespa.hosted.controller.api.integration.zone.ZoneId;
+import com.yahoo.config.provision.RegionName;
+import com.yahoo.config.provision.ZoneId;
 import com.yahoo.io.IOUtils;
 import com.yahoo.jdisc.http.HttpRequest.Method;
-import com.yahoo.vespa.hosted.controller.api.integration.zone.ZoneList;
 import com.yahoo.vespa.hosted.controller.api.integration.zone.ZoneRegistry;
 import org.apache.http.Header;
 import org.apache.http.client.config.RequestConfig;
@@ -81,15 +81,15 @@ public class ConfigServerRestExecutorImpl implements ConfigServerRestExecutor {
     private ProxyResponse createDiscoveryResponse(ProxyRequest proxyRequest) {
         ObjectMapper mapper = new ObjectMapper();
         DiscoveryResponseStructure responseStructure = new DiscoveryResponseStructure();
-        String environmentName = proxyRequest.getEnvironment();
 
-        ZoneList zones = zoneRegistry.zones().all();
-        if ( ! environmentName.isEmpty())
-            zones = zones.in(Environment.from(environmentName));
-
-        for (ZoneId zoneId : zones.ids()) {
+        List<ZoneId> zones = zoneRegistry.zones();
+        for (ZoneId zone : zones) {
+            if (!"".equals(proxyRequest.getEnvironment()) &&
+                !proxyRequest.getEnvironment().equals(zone.environment().value())) {
+                continue;
+            }
             responseStructure.uris.add(proxyRequest.getScheme() + "://" + proxyRequest.getControllerPrefix() +
-                                       zoneId.environment().name() + "/" + zoneId.region().value());
+                                       zone.environment().name() + "/" + zone.region().value());
         }
         JsonNode node = mapper.valueToTree(responseStructure);
         return new ProxyResponse(proxyRequest, node.toString(), 200, Optional.empty(), "application/json");
@@ -111,9 +111,9 @@ public class ConfigServerRestExecutorImpl implements ConfigServerRestExecutor {
         copyHeaders(proxyRequest.getHeaders(), requestBase, new HashSet<>());
 
         RequestConfig config = RequestConfig.custom()
-                .setConnectTimeout((int) PROXY_REQUEST_TIMEOUT.toMillis())
-                .setConnectionRequestTimeout((int) PROXY_REQUEST_TIMEOUT.toMillis())
-                .setSocketTimeout((int) PROXY_REQUEST_TIMEOUT.toMillis()).build();
+                                            .setConnectTimeout((int) PROXY_REQUEST_TIMEOUT.toMillis())
+                                            .setConnectionRequestTimeout((int) PROXY_REQUEST_TIMEOUT.toMillis())
+                                            .setSocketTimeout((int) PROXY_REQUEST_TIMEOUT.toMillis()).build();
         try (
                 CloseableHttpClient client = createHttpClient(config);
                 CloseableHttpResponse response = client.execute(requestBase);
@@ -121,7 +121,7 @@ public class ConfigServerRestExecutorImpl implements ConfigServerRestExecutor {
             if (response.getStatusLine().getStatusCode() / 100 == 5) {
                 errorBuilder.append("Talking to server ").append(uri.getHost());
                 errorBuilder.append(", got ").append(response.getStatusLine().getStatusCode()).append(" ")
-                        .append(streamToString(response.getEntity().getContent())).append("\n");
+                            .append(streamToString(response.getEntity().getContent())).append("\n");
                 return Optional.empty();
             }
             final Header contentHeader = response.getLastHeader("Content-Type");
diff --git a/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/restapi/application/ApplicationApiHandler.java b/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/restapi/application/ApplicationApiHandler.java
index a7d072d1dae..d15686077c6 100644
--- a/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/restapi/application/ApplicationApiHandler.java
+++ b/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/restapi/application/ApplicationApiHandler.java
@@ -10,7 +10,7 @@ import com.yahoo.config.provision.ApplicationName;
 import com.yahoo.config.provision.Environment;
 import com.yahoo.config.provision.RegionName;
 import com.yahoo.config.provision.TenantName;
-import com.yahoo.vespa.hosted.controller.api.integration.zone.ZoneId;
+import com.yahoo.config.provision.ZoneId;
 import com.yahoo.container.jdisc.HttpRequest;
 import com.yahoo.container.jdisc.HttpResponse;
 import com.yahoo.container.jdisc.LoggingRequestHandler;
diff --git a/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/restapi/application/ServiceApiResponse.java b/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/restapi/application/ServiceApiResponse.java
index 2429565350c..0b0a2c3ad52 100644
--- a/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/restapi/application/ServiceApiResponse.java
+++ b/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/restapi/application/ServiceApiResponse.java
@@ -2,7 +2,7 @@
 package com.yahoo.vespa.hosted.controller.restapi.application;
 
 import com.yahoo.config.provision.ApplicationId;
-import com.yahoo.vespa.hosted.controller.api.integration.zone.ZoneId;
+import com.yahoo.config.provision.ZoneId;
 import com.yahoo.container.jdisc.HttpResponse;
 import com.yahoo.slime.Cursor;
 import com.yahoo.slime.JsonFormat;
diff --git a/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/restapi/zone/v1/ZoneApiHandler.java b/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/restapi/zone/v1/ZoneApiHandler.java
index 282dd79b317..83b725ae4c4 100644
--- a/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/restapi/zone/v1/ZoneApiHandler.java
+++ b/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/restapi/zone/v1/ZoneApiHandler.java
@@ -3,7 +3,7 @@ package com.yahoo.vespa.hosted.controller.restapi.zone.v1;
 
 import com.yahoo.config.provision.Environment;
 import com.yahoo.config.provision.RegionName;
-import com.yahoo.vespa.hosted.controller.api.integration.zone.ZoneId;
+import com.yahoo.config.provision.ZoneId;
 import com.yahoo.container.jdisc.HttpRequest;
 import com.yahoo.container.jdisc.HttpResponse;
 import com.yahoo.container.jdisc.LoggingRequestHandler;
@@ -69,7 +69,7 @@ public class ZoneApiHandler extends LoggingRequestHandler {
     }
 
     private HttpResponse root(HttpRequest request) {
-        List<Environment> environments = zoneRegistry.zones().all().ids().stream()
+        List<Environment> environments = zoneRegistry.zones().stream()
                                                      .map(ZoneId::environment)
                                                      .distinct()
                                                      .sorted(Comparator.comparing(Environment::value))
@@ -89,7 +89,9 @@ public class ZoneApiHandler extends LoggingRequestHandler {
     }
 
     private HttpResponse environment(HttpRequest request, Environment environment) {
-        List<ZoneId> zones = zoneRegistry.zones().all().in(environment).ids();
+        List<ZoneId> zones = zoneRegistry.zones().stream()
+                                       .filter(zone -> zone.environment() == environment)
+                                       .collect(Collectors.toList());
         Slime slime = new Slime();
         Cursor root = slime.setArray();
         zones.forEach(zone -> {
diff --git a/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/restapi/zone/v2/ZoneApiHandler.java b/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/restapi/zone/v2/ZoneApiHandler.java
index 68dc2325687..772dd1f6cb1 100644
--- a/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/restapi/zone/v2/ZoneApiHandler.java
+++ b/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/restapi/zone/v2/ZoneApiHandler.java
@@ -1,7 +1,9 @@
 // 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.controller.restapi.zone.v2;
 
-import com.yahoo.vespa.hosted.controller.api.integration.zone.ZoneId;
+import com.yahoo.config.provision.Environment;
+import com.yahoo.config.provision.RegionName;
+import com.yahoo.config.provision.ZoneId;
 import com.yahoo.container.jdisc.HttpRequest;
 import com.yahoo.container.jdisc.HttpResponse;
 import com.yahoo.container.jdisc.LoggingRequestHandler;
@@ -18,6 +20,7 @@ import com.yahoo.vespa.hosted.controller.restapi.SlimeJsonResponse;
 import com.yahoo.yolean.Exceptions;
 
 import java.io.IOException;
+import java.util.Optional;
 import java.util.concurrent.Executor;
 import java.util.logging.Level;
 
@@ -91,16 +94,16 @@ public class ZoneApiHandler extends LoggingRequestHandler {
         Slime slime = new Slime();
         Cursor root = slime.setObject();
         Cursor uris = root.setArray("uris");
-        zoneRegistry.zones().all().ids().forEach(zoneId -> uris.addString(request.getUri()
+        zoneRegistry.zones().forEach(zone -> uris.addString(request.getUri()
                                                                .resolve("/zone/v2/")
-                                                               .resolve(zoneId.environment().value() + "/")
-                                                               .resolve(zoneId.region().value())
+                                                               .resolve(zone.environment().value() + "/")
+                                                               .resolve(zone.region().value())
                                                                .toString()));
         Cursor zones = root.setArray("zones");
-        zoneRegistry.zones().all().ids().forEach(zoneId -> {
+        zoneRegistry.zones().forEach(zone -> {
             Cursor object = zones.addObject();
-            object.setString("environment", zoneId.environment().value());
-            object.setString("region", zoneId.region().value());
+            object.setString("environment", zone.environment().value());
+            object.setString("region", zone.region().value());
         });
         return new SlimeJsonResponse(slime);
     }
diff --git a/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/versions/VersionStatus.java b/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/versions/VersionStatus.java
index 6f895c32be7..876bd5fe029 100644
--- a/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/versions/VersionStatus.java
+++ b/controller-server/src/main/java/com/yahoo/vespa/hosted/controller/versions/VersionStatus.java
@@ -119,10 +119,10 @@ public class VersionStatus {
     }
 
     private static ListMap<Version, String> findConfigServerVersions(Controller controller) {
-        List<URI> configServers = controller.zoneRegistry().zones()
-                .controllerManaged()
-                .ids().stream()
-                .flatMap(zoneId -> controller.getConfigServerUris(zoneId).stream())
+        List<URI> configServers = controller.zoneRegistry().zones().stream()
+                // TODO: Filter properly.
+                .filter(zone -> ! zone.region().equals(RegionName.from("us-east-2a")))
+                .flatMap(zone -> controller.getConfigServerUris(zone).stream())
                 .collect(Collectors.toList());
 
         ListMap<Version, String> versions = new ListMap<>();
diff --git a/controller-server/src/test/java/com/yahoo/vespa/hosted/controller/ControllerTest.java b/controller-server/src/test/java/com/yahoo/vespa/hosted/controller/ControllerTest.java
index 17801bde546..58c74c9d6d2 100644
--- a/controller-server/src/test/java/com/yahoo/vespa/hosted/controller/ControllerTest.java
+++ b/controller-server/src/test/java/com/yahoo/vespa/hosted/controller/ControllerTest.java
@@ -10,7 +10,7 @@ import com.yahoo.config.provision.InstanceName;
 import com.yahoo.config.provision.RegionName;
 import com.yahoo.config.provision.SystemName;
 import com.yahoo.config.provision.TenantName;
-import com.yahoo.vespa.hosted.controller.api.integration.zone.ZoneId;
+import com.yahoo.config.provision.ZoneId;
 import com.yahoo.vespa.config.SlimeUtils;
 import com.yahoo.vespa.hosted.controller.api.Tenant;
 import com.yahoo.vespa.hosted.controller.api.application.v4.model.DeployOptions;
diff --git a/controller-server/src/test/java/com/yahoo/vespa/hosted/controller/ControllerTester.java b/controller-server/src/test/java/com/yahoo/vespa/hosted/controller/ControllerTester.java
index b3ca5491e91..52e1b3ae400 100644
--- a/controller-server/src/test/java/com/yahoo/vespa/hosted/controller/ControllerTester.java
+++ b/controller-server/src/test/java/com/yahoo/vespa/hosted/controller/ControllerTester.java
@@ -7,7 +7,7 @@ import com.yahoo.config.provision.Environment;
 import com.yahoo.config.provision.InstanceName;
 import com.yahoo.config.provision.RegionName;
 import com.yahoo.config.provision.TenantName;
-import com.yahoo.vespa.hosted.controller.api.integration.zone.ZoneId;
+import com.yahoo.config.provision.ZoneId;
 import com.yahoo.slime.Slime;
 import com.yahoo.test.ManualClock;
 import com.yahoo.vespa.curator.Lock;
diff --git a/controller-server/src/test/java/com/yahoo/vespa/hosted/controller/ZoneRegistryMock.java b/controller-server/src/test/java/com/yahoo/vespa/hosted/controller/ZoneRegistryMock.java
index 82434b6260c..2317b7bc6f1 100644
--- a/controller-server/src/test/java/com/yahoo/vespa/hosted/controller/ZoneRegistryMock.java
+++ b/controller-server/src/test/java/com/yahoo/vespa/hosted/controller/ZoneRegistryMock.java
@@ -6,14 +6,13 @@ import com.yahoo.component.AbstractComponent;
 import com.yahoo.config.provision.Environment;
 import com.yahoo.config.provision.RegionName;
 import com.yahoo.config.provision.SystemName;
-import com.yahoo.vespa.hosted.controller.api.integration.zone.ZoneId;
+import com.yahoo.config.provision.ZoneId;
 import com.yahoo.vespa.hosted.controller.api.identifiers.DeploymentId;
 import com.yahoo.vespa.hosted.controller.api.integration.zone.ZoneRegistry;
-import com.yahoo.vespa.hosted.controller.api.integration.zone.ZoneFilter;
-import com.yahoo.vespa.hosted.controller.api.integration.zone.ZoneFilterMock;
 
 import java.net.URI;
 import java.time.Duration;
+import java.time.Instant;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.HashMap;
@@ -64,8 +63,8 @@ public class ZoneRegistryMock extends AbstractComponent implements ZoneRegistry
     }
 
     @Override
-    public ZoneFilter zones() {
-        return ZoneFilterMock.from(Collections.unmodifiableList(zones));
+    public List<ZoneId> zones() {
+        return Collections.unmodifiableList(zones);
     }
 
     @Override
diff --git a/controller-server/src/test/java/com/yahoo/vespa/hosted/controller/integration/MockMetricsService.java b/controller-server/src/test/java/com/yahoo/vespa/hosted/controller/integration/MockMetricsService.java
index 88bbb582564..a58d2d0fa39 100644
--- a/controller-server/src/test/java/com/yahoo/vespa/hosted/controller/integration/MockMetricsService.java
+++ b/controller-server/src/test/java/com/yahoo/vespa/hosted/controller/integration/MockMetricsService.java
@@ -2,7 +2,7 @@
 package com.yahoo.vespa.hosted.controller.integration;
 
 import com.yahoo.config.provision.ApplicationId;
-import com.yahoo.vespa.hosted.controller.api.integration.zone.ZoneId;
+import com.yahoo.config.provision.ZoneId;
 
 import java.util.HashMap;
 import java.util.Map;
diff --git a/controller-server/src/test/java/com/yahoo/vespa/hosted/controller/maintenance/DeploymentExpirerTest.java b/controller-server/src/test/java/com/yahoo/vespa/hosted/controller/maintenance/DeploymentExpirerTest.java
index d48f7b84ee6..47d62f93def 100644
--- a/controller-server/src/test/java/com/yahoo/vespa/hosted/controller/maintenance/DeploymentExpirerTest.java
+++ b/controller-server/src/test/java/com/yahoo/vespa/hosted/controller/maintenance/DeploymentExpirerTest.java
@@ -3,7 +3,7 @@ package com.yahoo.vespa.hosted.controller.maintenance;
 
 import com.yahoo.config.provision.Environment;
 import com.yahoo.config.provision.RegionName;
-import com.yahoo.vespa.hosted.controller.api.integration.zone.ZoneId;
+import com.yahoo.config.provision.ZoneId;
 import com.yahoo.vespa.hosted.controller.Application;
 import com.yahoo.vespa.hosted.controller.application.ApplicationPackage;
 import com.yahoo.vespa.hosted.controller.application.Deployment;
diff --git a/controller-server/src/test/java/com/yahoo/vespa/hosted/controller/maintenance/DnsMaintainerTest.java b/controller-server/src/test/java/com/yahoo/vespa/hosted/controller/maintenance/DnsMaintainerTest.java
index 41892ba666b..8647b87133e 100644
--- a/controller-server/src/test/java/com/yahoo/vespa/hosted/controller/maintenance/DnsMaintainerTest.java
+++ b/controller-server/src/test/java/com/yahoo/vespa/hosted/controller/maintenance/DnsMaintainerTest.java
@@ -4,7 +4,8 @@ package com.yahoo.vespa.hosted.controller.maintenance;
 import com.yahoo.config.application.api.ValidationId;
 import com.yahoo.config.provision.Environment;
 import com.yahoo.config.provision.RegionName;
-import com.yahoo.vespa.hosted.controller.api.integration.zone.ZoneId;
+import com.yahoo.config.provision.Zone;
+import com.yahoo.config.provision.ZoneId;
 import com.yahoo.vespa.hosted.controller.Application;
 import com.yahoo.vespa.hosted.controller.api.integration.athenz.NToken;
 import com.yahoo.vespa.hosted.controller.api.integration.dns.Record;
diff --git a/controller-server/src/test/java/com/yahoo/vespa/hosted/controller/maintenance/UpgraderTest.java b/controller-server/src/test/java/com/yahoo/vespa/hosted/controller/maintenance/UpgraderTest.java
index 90721e7be6b..ac282422c89 100644
--- a/controller-server/src/test/java/com/yahoo/vespa/hosted/controller/maintenance/UpgraderTest.java
+++ b/controller-server/src/test/java/com/yahoo/vespa/hosted/controller/maintenance/UpgraderTest.java
@@ -4,7 +4,7 @@ package com.yahoo.vespa.hosted.controller.maintenance;
 import com.yahoo.component.Version;
 import com.yahoo.config.provision.Environment;
 import com.yahoo.config.provision.RegionName;
-import com.yahoo.vespa.hosted.controller.api.integration.zone.ZoneId;
+import com.yahoo.config.provision.ZoneId;
 import com.yahoo.test.ManualClock;
 import com.yahoo.vespa.hosted.controller.Application;
 import com.yahoo.vespa.hosted.controller.ControllerTester;
diff --git a/controller-server/src/test/java/com/yahoo/vespa/hosted/controller/persistence/ApplicationSerializerTest.java b/controller-server/src/test/java/com/yahoo/vespa/hosted/controller/persistence/ApplicationSerializerTest.java
index d7389ca94cd..b281b513f4a 100644
--- a/controller-server/src/test/java/com/yahoo/vespa/hosted/controller/persistence/ApplicationSerializerTest.java
+++ b/controller-server/src/test/java/com/yahoo/vespa/hosted/controller/persistence/ApplicationSerializerTest.java
@@ -6,7 +6,9 @@ import com.yahoo.config.application.api.DeploymentSpec;
 import com.yahoo.config.application.api.ValidationOverrides;
 import com.yahoo.config.provision.ApplicationId;
 import com.yahoo.config.provision.ClusterSpec;
-import com.yahoo.vespa.hosted.controller.api.integration.zone.ZoneId;
+import com.yahoo.config.provision.Environment;
+import com.yahoo.config.provision.RegionName;
+import com.yahoo.config.provision.ZoneId;
 import com.yahoo.slime.Slime;
 import com.yahoo.vespa.config.SlimeUtils;
 import com.yahoo.vespa.hosted.controller.Application;
diff --git a/controller-server/src/test/java/com/yahoo/vespa/hosted/controller/restapi/ContainerControllerTester.java b/controller-server/src/test/java/com/yahoo/vespa/hosted/controller/restapi/ContainerControllerTester.java
index f252acd44ca..f3fa1e21eda 100644
--- a/controller-server/src/test/java/com/yahoo/vespa/hosted/controller/restapi/ContainerControllerTester.java
+++ b/controller-server/src/test/java/com/yahoo/vespa/hosted/controller/restapi/ContainerControllerTester.java
@@ -4,7 +4,8 @@ package com.yahoo.vespa.hosted.controller.restapi;
 import com.yahoo.application.container.JDisc;
 import com.yahoo.application.container.handler.Request;
 import com.yahoo.config.provision.ApplicationId;
-import com.yahoo.vespa.hosted.controller.api.integration.zone.ZoneId;
+import com.yahoo.config.provision.Zone;
+import com.yahoo.config.provision.ZoneId;
 import com.yahoo.vespa.hosted.controller.Application;
 import com.yahoo.vespa.hosted.controller.Controller;
 import com.yahoo.vespa.hosted.controller.TestIdentities;
diff --git a/controller-server/src/test/java/com/yahoo/vespa/hosted/controller/restapi/application/ServiceApiResponseTest.java b/controller-server/src/test/java/com/yahoo/vespa/hosted/controller/restapi/application/ServiceApiResponseTest.java
index b583aaedde1..4c25bf6fe61 100644
--- a/controller-server/src/test/java/com/yahoo/vespa/hosted/controller/restapi/application/ServiceApiResponseTest.java
+++ b/controller-server/src/test/java/com/yahoo/vespa/hosted/controller/restapi/application/ServiceApiResponseTest.java
@@ -4,7 +4,7 @@ package com.yahoo.vespa.hosted.controller.restapi.application;
 import com.yahoo.config.provision.ApplicationId;
 import com.yahoo.config.provision.Environment;
 import com.yahoo.config.provision.RegionName;
-import com.yahoo.vespa.hosted.controller.api.integration.zone.ZoneId;
+import com.yahoo.config.provision.ZoneId;
 import com.yahoo.io.IOUtils;
 import com.yahoo.slime.Slime;
 import com.yahoo.vespa.config.SlimeUtils;
diff --git a/controller-server/src/test/java/com/yahoo/vespa/hosted/controller/restapi/deployment/DeploymentApiTest.java b/controller-server/src/test/java/com/yahoo/vespa/hosted/controller/restapi/deployment/DeploymentApiTest.java
index 7b689923138..d16a0222e4a 100644
--- a/controller-server/src/test/java/com/yahoo/vespa/hosted/controller/restapi/deployment/DeploymentApiTest.java
+++ b/controller-server/src/test/java/com/yahoo/vespa/hosted/controller/restapi/deployment/DeploymentApiTest.java
@@ -6,7 +6,7 @@ import com.yahoo.application.container.handler.Request;
 import com.yahoo.component.Version;
 import com.yahoo.config.provision.Environment;
 import com.yahoo.config.provision.RegionName;
-import com.yahoo.vespa.hosted.controller.api.integration.zone.ZoneId;
+import com.yahoo.config.provision.ZoneId;
 import com.yahoo.vespa.hosted.controller.Application;
 import com.yahoo.vespa.hosted.controller.Controller;
 import com.yahoo.vespa.hosted.controller.application.ApplicationPackage;
diff --git a/controller-server/src/test/java/com/yahoo/vespa/hosted/controller/restapi/screwdriver/ScrewdriverApiTest.java b/controller-server/src/test/java/com/yahoo/vespa/hosted/controller/restapi/screwdriver/ScrewdriverApiTest.java
index d680d943f84..1269bb23105 100644
--- a/controller-server/src/test/java/com/yahoo/vespa/hosted/controller/restapi/screwdriver/ScrewdriverApiTest.java
+++ b/controller-server/src/test/java/com/yahoo/vespa/hosted/controller/restapi/screwdriver/ScrewdriverApiTest.java
@@ -7,7 +7,7 @@ import com.yahoo.component.Version;
 import com.yahoo.config.provision.ApplicationId;
 import com.yahoo.config.provision.Environment;
 import com.yahoo.config.provision.RegionName;
-import com.yahoo.vespa.hosted.controller.api.integration.zone.ZoneId;
+import com.yahoo.config.provision.ZoneId;
 import com.yahoo.vespa.config.SlimeUtils;
 import com.yahoo.vespa.hosted.controller.Application;
 import com.yahoo.vespa.hosted.controller.application.ApplicationPackage;
diff --git a/controller-server/src/test/java/com/yahoo/vespa/hosted/controller/restapi/zone/v1/ZoneApiTest.java b/controller-server/src/test/java/com/yahoo/vespa/hosted/controller/restapi/zone/v1/ZoneApiTest.java
index 6e87304774a..2d92d10b661 100644
--- a/controller-server/src/test/java/com/yahoo/vespa/hosted/controller/restapi/zone/v1/ZoneApiTest.java
+++ b/controller-server/src/test/java/com/yahoo/vespa/hosted/controller/restapi/zone/v1/ZoneApiTest.java
@@ -4,7 +4,7 @@ package com.yahoo.vespa.hosted.controller.restapi.zone.v1;
 import com.yahoo.application.container.handler.Request;
 import com.yahoo.config.provision.Environment;
 import com.yahoo.config.provision.RegionName;
-import com.yahoo.vespa.hosted.controller.api.integration.zone.ZoneId;
+import com.yahoo.config.provision.ZoneId;
 import com.yahoo.vespa.hosted.controller.ZoneRegistryMock;
 import com.yahoo.vespa.hosted.controller.restapi.ContainerControllerTester;
 import com.yahoo.vespa.hosted.controller.restapi.ControllerContainerTest;
diff --git a/controller-server/src/test/java/com/yahoo/vespa/hosted/controller/restapi/zone/v2/ZoneApiTest.java b/controller-server/src/test/java/com/yahoo/vespa/hosted/controller/restapi/zone/v2/ZoneApiTest.java
index 782dc6dba4f..9c20c470cf8 100644
--- a/controller-server/src/test/java/com/yahoo/vespa/hosted/controller/restapi/zone/v2/ZoneApiTest.java
+++ b/controller-server/src/test/java/com/yahoo/vespa/hosted/controller/restapi/zone/v2/ZoneApiTest.java
@@ -4,7 +4,7 @@ import com.yahoo.application.container.handler.Request;
 import com.yahoo.application.container.handler.Request.Method;
 import com.yahoo.config.provision.Environment;
 import com.yahoo.config.provision.RegionName;
-import com.yahoo.vespa.hosted.controller.api.integration.zone.ZoneId;
+import com.yahoo.config.provision.ZoneId;
 import com.yahoo.text.Utf8;
 import com.yahoo.vespa.hosted.controller.ConfigServerProxyMock;
 import com.yahoo.vespa.hosted.controller.ZoneRegistryMock;
diff --git a/standalone-container/src/main/scala/com/yahoo/container/standalone/StandaloneContainerApplication.scala b/standalone-container/src/main/scala/com/yahoo/container/standalone/StandaloneContainerApplication.scala
index 1d4b83ce7d3..e1d5ba6577d 100644
--- a/standalone-container/src/main/scala/com/yahoo/container/standalone/StandaloneContainerApplication.scala
+++ b/standalone-container/src/main/scala/com/yahoo/container/standalone/StandaloneContainerApplication.scala
@@ -158,7 +158,7 @@ object StandaloneContainerApplication {
     val logger = new BaseDeployLogger
     val rawApplicationPackage = new FilesApplicationPackage.Builder(applicationPath.toFile).includeSourceFiles(true).preprocessedDir(preprocessedApplicationDir).build()
     // TODO: Needed until we get rid of semantic rules
-    val applicationPackage = rawApplicationPackage.preprocess(Zone.defaultZone(), new RuleConfigDeriver {
+    val applicationPackage = rawApplicationPackage.preprocess(Zone.defaultZone().id, new RuleConfigDeriver {
       override def derive(ruleBaseDir: String, outputDir: String): Unit = {}
     }, logger)
     validateApplication(applicationPackage)