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// Licensed to the Apache Software Foundation (ASF) under one
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// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the License for the
// specific language governing permissions and limitations
// under the License.
package com.cloud.storage;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;
import javax.inject.Inject;
import javax.naming.ConfigurationException;
import com.cloud.utils.db.UUIDManager;
import org.apache.cloudstack.api.command.admin.storage.MigrateResourcesToAnotherSecondaryStorageCmd;
import org.apache.cloudstack.api.command.admin.storage.MigrateSecondaryStorageDataCmd;
import org.apache.cloudstack.api.response.MigrationResponse;
import org.apache.cloudstack.context.CallContext;
import org.apache.cloudstack.engine.orchestration.service.StorageOrchestrationService;
import org.apache.cloudstack.engine.subsystem.api.storage.DataStoreProvider;
import org.apache.cloudstack.framework.config.ConfigKey;
import org.apache.cloudstack.framework.jobs.AsyncJobManager;
import org.apache.cloudstack.storage.ImageStoreService;
import org.apache.cloudstack.storage.datastore.db.ImageStoreDao;
import org.apache.cloudstack.storage.datastore.db.ImageStoreVO;
import org.apache.commons.lang3.EnumUtils;
import com.cloud.event.ActionEvent;
import com.cloud.event.EventTypes;
import com.cloud.exception.InvalidParameterValueException;
import com.cloud.utils.component.ManagerBase;
import com.cloud.utils.exception.CloudRuntimeException;
public class ImageStoreServiceImpl extends ManagerBase implements ImageStoreService {
@Inject
ImageStoreDao imageStoreDao;
@Inject
private AsyncJobManager jobMgr;
@Inject
private StorageOrchestrationService stgService;
@Inject
public UUIDManager uuidMgr;
ConfigKey<Double> ImageStoreImbalanceThreshold = new ConfigKey<>("Advanced", Double.class,
"image.store.imbalance.threshold",
"0.3",
"The storage imbalance threshold that is compared with the standard deviation percentage for a storage utilization metric. " +
"The value is a percentage in decimal format.",
true, ConfigKey.Scope.Global);
public Integer numConcurrentCopyTasksPerSSVM = null;
@Override
public boolean configure(String name, Map<String, Object> params) throws ConfigurationException {
return true;
}
@Override
@ActionEvent(eventType = EventTypes.EVENT_IMAGE_STORE_DATA_MIGRATE, eventDescription = "migrating Image store data", async = true)
public MigrationResponse migrateData(MigrateSecondaryStorageDataCmd cmd) {
Long srcImgStoreId = cmd.getId();
ImageStoreVO srcImageVO = imageStoreDao.findById(srcImgStoreId);
List<Long> destImgStoreIds = cmd.getMigrateTo();
List<String> imagestores = new ArrayList<String>();
String migrationType = cmd.getMigrationType();
// default policy is complete
MigrationPolicy policy = MigrationPolicy.COMPLETE;
if (migrationType != null) {
if (!EnumUtils.isValidEnum(MigrationPolicy.class, migrationType.toUpperCase())) {
throw new CloudRuntimeException("Not a valid migration policy");
}
policy = MigrationPolicy.valueOf(migrationType.toUpperCase());
}
String message = null;
if (srcImageVO == null) {
throw new CloudRuntimeException("Cannot find secondary storage with id: " + srcImgStoreId);
}
Long srcStoreDcId = srcImageVO.getDataCenterId();
imagestores.add(srcImageVO.getName());
if (srcImageVO.getRole() != DataStoreRole.Image) {
throw new CloudRuntimeException("Secondary storage is not of Image Role");
}
if (!srcImageVO.getProviderName().equals(DataStoreProvider.NFS_IMAGE)) {
throw new InvalidParameterValueException("Migration of datastore objects is supported only for NFS based image stores");
}
if (destImgStoreIds.contains(srcImgStoreId)) {
logger.debug("One of the destination stores is the same as the source image store ... Ignoring it...");
destImgStoreIds.remove(srcImgStoreId);
}
// Validate all the Ids correspond to valid Image stores
List<Long> destDatastores = new ArrayList<>();
for (Long id : destImgStoreIds) {
ImageStoreVO store = imageStoreDao.findById(id);
if (store == null) {
logger.warn("Secondary storage with id: " + id + "is not found. Skipping it...");
continue;
}
if (store.isReadonly()) {
logger.warn("Secondary storage: "+ id + " cannot be considered for migration as has read-only permission, Skipping it... ");
continue;
}
if (!store.getProviderName().equals(DataStoreProvider.NFS_IMAGE)) {
logger.warn("Destination image store : " + store.getName() + " not NFS based. Store not suitable for migration!");
continue;
}
if (srcStoreDcId != null && store.getDataCenterId() != null && !srcStoreDcId.equals(store.getDataCenterId())) {
logger.warn("Source and destination stores are not in the same zone. Skipping destination store: " + store.getName());
continue;
}
destDatastores.add(id);
imagestores.add(store.getName());
}
if (destDatastores.size() < 1) {
throw new CloudRuntimeException("No destination valid store(s) available to migrate. Could" +
"be due to invalid store ID(s) or store(s) are read-only. Terminating Migration of data");
}
if (isMigrateJobRunning()){
message = "A migrate job is in progress, please try again later...";
return new MigrationResponse(message, policy.toString(), false);
}
CallContext.current().setEventDetails("Migrating files/data objects from : " + imagestores.get(0) + " to: " + imagestores.subList(1, imagestores.size()));
return stgService.migrateData(srcImgStoreId, destDatastores, policy);
}
@Override
@ActionEvent(eventType = EventTypes.EVENT_IMAGE_STORE_RESOURCES_MIGRATE, eventDescription = "migrating Image store resources to another image store", async = true)
public MigrationResponse migrateResources(MigrateResourcesToAnotherSecondaryStorageCmd cmd) {
if (isMigrateJobRunning()){
return new MigrationResponse("A migrate job is in progress, please try again later.", null, false);
}
Long srcImgStoreId = cmd.getId();
Long destImgStoreId = cmd.getDestStoreId();
if (srcImgStoreId.equals(destImgStoreId)) {
throw new InvalidParameterValueException("Source and destination image stores cannot be same");
}
ImageStoreVO srcImageStore = imageStoreDao.findById(srcImgStoreId);
ImageStoreVO destImageStore = imageStoreDao.findById(destImgStoreId);
if (srcImageStore == null) {
throw new CloudRuntimeException("Cannot find secondary storage with id: " + srcImgStoreId);
}
if (destImageStore == null) {
throw new CloudRuntimeException("Cannot find secondary storage with id: " + srcImgStoreId);
}
if (srcImageStore.getRole() != DataStoreRole.Image) {
throw new CloudRuntimeException("Source Secondary storage is not of Image Role");
}
if (destImageStore.getRole() != DataStoreRole.Image) {
throw new CloudRuntimeException("Destination Secondary storage is not of Image Role");
}
if (!srcImageStore.getProviderName().equals(DataStoreProvider.NFS_IMAGE) || !destImageStore.getProviderName().equals(DataStoreProvider.NFS_IMAGE)) {
throw new InvalidParameterValueException("Migration of datastore objects is supported only for NFS based image stores");
}
if (destImageStore.isReadonly()) {
throw new InvalidParameterValueException("Destination image store is read-only. Cannot migrate resources to it");
}
if (srcImageStore.getDataCenterId() != null && destImageStore.getDataCenterId() != null && !srcImageStore.getDataCenterId().equals(destImageStore.getDataCenterId())) {
throw new InvalidParameterValueException("Source and destination stores are not in the same zone.");
}
List<Long> templateIdList = cmd.getTemplateIdList();
List<Long> snapshotIdList = cmd.getSnapshotIdList();
List<String> templateUuidList = templateIdList.stream().map((id) -> uuidMgr.getUuid(VMTemplateVO.class, id)).collect(Collectors.toList());
List<String> snapshotUuidList = snapshotIdList.stream().map((id) -> uuidMgr.getUuid(SnapshotVO.class, id)).collect(Collectors.toList());
CallContext.current().setEventDetails(
"Migrating templates (" + String.join(", ", templateUuidList) +
") and snapshots (" + String.join(", ", snapshotUuidList) +
") from : " + srcImageStore.getName() + " to: " + destImageStore.getName()
);
return stgService.migrateResources(srcImgStoreId, destImgStoreId, templateIdList, snapshotIdList);
}
// Ensures that only one migrate job may occur at a time, in order to reduce load
private boolean isMigrateJobRunning() {
long count = jobMgr.countPendingJobs(null, MigrateSecondaryStorageDataCmd.class.getName());
if (count > 1) {
return true;
}
return false;
}
}