nvazquez commented on code in PR #10560: URL: https://github.com/apache/cloudstack/pull/10560#discussion_r2017855932
########## server/src/main/java/org/apache/cloudstack/vm/lease/VMLeaseManagerImpl.java: ########## @@ -0,0 +1,291 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * 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 org.apache.cloudstack.vm.lease; + +import com.cloud.alert.AlertManager; +import com.cloud.api.ApiGsonHelper; +import com.cloud.api.query.dao.UserVmJoinDao; +import com.cloud.api.query.vo.UserVmJoinVO; +import com.cloud.event.ActionEventUtils; +import com.cloud.user.Account; +import com.cloud.user.User; +import com.cloud.utils.DateUtil; +import com.cloud.utils.StringUtils; +import com.cloud.utils.component.ComponentContext; +import com.cloud.utils.component.ManagerBase; +import com.cloud.utils.concurrency.NamedThreadFactory; +import com.cloud.utils.db.GlobalLock; +import org.apache.cloudstack.api.ApiCommandResourceType; +import org.apache.cloudstack.api.ApiConstants; +import org.apache.cloudstack.api.command.user.vm.DestroyVMCmd; +import org.apache.cloudstack.api.command.user.vm.StopVMCmd; +import org.apache.cloudstack.framework.config.ConfigKey; +import org.apache.cloudstack.framework.config.Configurable; +import org.apache.cloudstack.framework.jobs.AsyncJobDispatcher; +import org.apache.cloudstack.framework.jobs.AsyncJobManager; +import org.apache.cloudstack.framework.jobs.impl.AsyncJobVO; +import org.apache.cloudstack.managed.context.ManagedContextRunnable; +import org.apache.commons.lang3.time.DateUtils; + +import javax.inject.Inject; +import javax.naming.ConfigurationException; +import java.util.ArrayList; +import java.util.Calendar; +import java.util.Date; +import java.util.HashMap; +import java.util.List; +import java.util.Map; +import java.util.concurrent.Executors; +import java.util.concurrent.ScheduledExecutorService; +import java.util.concurrent.TimeUnit; + +public class VMLeaseManagerImpl extends ManagerBase implements VMLeaseManager, Configurable { + + public static ConfigKey<Boolean> InstanceLeaseEnabled = new ConfigKey<>(ConfigKey.CATEGORY_ADVANCED, Boolean.class, + "instance.lease.enabled", "false", "Indicates whether to enable the Instance Lease feature", + true, List.of(ConfigKey.Scope.Global)); + + private static final int ACQUIRE_GLOBAL_LOCK_TIMEOUT_FOR_COOPERATION = 5; // 5 seconds + + @Inject + private UserVmJoinDao userVmJoinDao; + + @Inject + private AlertManager alertManager; + + @Inject + private AsyncJobManager asyncJobManager; + + private AsyncJobDispatcher asyncJobDispatcher; + + ScheduledExecutorService vmLeaseExecutor; + ScheduledExecutorService vmLeaseAlertExecutor; + + @Override + public String getConfigComponentName() { + return VMLeaseManager.class.getSimpleName(); + } + + @Override + public ConfigKey<?>[] getConfigKeys() { + return new ConfigKey[]{ + InstanceLeaseEnabled, + InstanceLeaseDuration, + InstanceLeaseExpiryAction, + InstanceLeaseSchedulerInterval, + InstanceLeaseAlertSchedule, + InstanceLeaseAlertStartsAt + }; + } + + public void setAsyncJobDispatcher(final AsyncJobDispatcher dispatcher) { + asyncJobDispatcher = dispatcher; + } + + @Override + public boolean configure(String name, Map<String, Object> params) throws ConfigurationException { + try { + vmLeaseExecutor = Executors.newSingleThreadScheduledExecutor(new NamedThreadFactory("VMLeasePollExecutor")); + vmLeaseAlertExecutor = Executors.newSingleThreadScheduledExecutor(new NamedThreadFactory("VMLeaseAlertPollExecutor")); + } catch (final Exception e) { + throw new ConfigurationException("Unable to to configure VMLeaseManagerImpl"); + } + return true; + } + + @Override + public boolean start() { + vmLeaseExecutor.scheduleAtFixedRate(new VMLeaseSchedulerTask(),5L, InstanceLeaseSchedulerInterval.value(), TimeUnit.SECONDS); + vmLeaseAlertExecutor.scheduleAtFixedRate(new VMLeaseAlertSchedulerTask(), 5L, InstanceLeaseAlertSchedule.value(), TimeUnit.SECONDS); + return true; + } + + @Override + public boolean stop() { + vmLeaseExecutor.shutdown(); + vmLeaseAlertExecutor.shutdown(); + return true; + } + + class VMLeaseSchedulerTask extends ManagedContextRunnable { + @Override + protected void runInContext() { + Date currentTimestamp = DateUtils.round(new Date(), Calendar.MINUTE); + String displayTime = DateUtil.displayDateInTimezone(DateUtil.GMT_TIMEZONE, currentTimestamp); + logger.debug("VMLeaseSchedulerTask is being called at {}", displayTime); + if (!InstanceLeaseEnabled.value()) { + logger.debug("Instance lease feature is disabled, no action is required"); + return; + } + + GlobalLock scanLock = GlobalLock.getInternLock("VMLeaseSchedulerTask"); + try { + if (scanLock.lock(ACQUIRE_GLOBAL_LOCK_TIMEOUT_FOR_COOPERATION)) { + try { + reallyRun(); + } finally { + scanLock.unlock(); + } + } + } finally { + scanLock.releaseRef(); + } + } + } + + class VMLeaseAlertSchedulerTask extends ManagedContextRunnable { + @Override + protected void runInContext() { + // as feature is disabled, no action is required + if (!InstanceLeaseEnabled.value()) { Review Comment: That could be a nice improvement, I think for the scope of this PR its fine with the current kill-switch behaviour. -- This is an automated message from the Apache Git Service. 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