tysonnorris commented on a change in pull request #2833: MesosContainerFactory URL: https://github.com/apache/incubator-openwhisk/pull/2833#discussion_r164244356
########## File path: common/scala/src/main/scala/whisk/core/mesos/MesosContainerFactory.scala ########## @@ -0,0 +1,163 @@ +/* + * 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 whisk.core.mesos + +import akka.actor.ActorRef +import akka.actor.ActorSystem +import akka.pattern.ask +import com.adobe.api.platform.runtime.mesos.MesosClient +import com.adobe.api.platform.runtime.mesos.Subscribe +import com.adobe.api.platform.runtime.mesos.SubscribeComplete +import com.adobe.api.platform.runtime.mesos.Teardown +import java.time.Instant +import pureconfig.loadConfigOrThrow +import scala.concurrent.Await +import scala.concurrent.ExecutionContext +import scala.concurrent.Future +import scala.concurrent.duration._ +import scala.util.Failure +import scala.util.Success +import whisk.common.Counter +import whisk.common.Logging +import whisk.common.TransactionId +import whisk.core.ConfigKeys +import whisk.core.WhiskConfig +import whisk.core.containerpool.Container +import whisk.core.containerpool.ContainerFactory +import whisk.core.containerpool.ContainerFactoryProvider +import whisk.core.entity.ByteSize +import whisk.core.entity.ExecManifest +import whisk.core.entity.InstanceId +import whisk.core.entity.UUID + +case class MesosConfig(masterUrl: String, + masterPublicUrl: Option[String] = None, + role: String = "*", + failoverTimeoutSeconds: FiniteDuration = 0.seconds, + mesosLinkLogMessage: Boolean = true) + +class MesosContainerFactory(config: WhiskConfig, + actorSystem: ActorSystem, + logging: Logging, + parameters: Map[String, Set[String]], + mesosConfig: MesosConfig = loadConfigOrThrow[MesosConfig](ConfigKeys.mesos), + clientFactory: (ActorSystem, MesosConfig) => ActorRef = MesosContainerFactory.createClient, + taskIdGenerator: () => String = MesosContainerFactory.taskIdGenerator) + extends ContainerFactory { + + val subscribeTimeout = 30.seconds + + //init mesos framework: + implicit val as: ActorSystem = actorSystem + implicit val ec: ExecutionContext = actorSystem.dispatcher + + //mesos master url to subscribe the framework to + val mesosMaster = mesosConfig.masterUrl + //public mesos url where developers can browse logs (till there is way to delegate log retrieval to an external system) + val mesosMasterPublic = mesosConfig.masterPublicUrl + + var isSubscribed = false; + + val mesosClientActor = clientFactory(as, mesosConfig) + + //periodically retry if subscribing did not suceed + as.scheduler.schedule(0.seconds, (subscribeTimeout.toSeconds + 10).seconds) { + if (!isSubscribed) { + subscribe() + } + } + + private def subscribe(): Unit = { + logging.info(this, s"subscribing to mesos master at ${mesosMaster}") + //subscribe mesos actor to mesos event stream + //TODO: subscribe failure should make invoker "unhealthy" + mesosClientActor + .ask(Subscribe)(subscribeTimeout) + .mapTo[SubscribeComplete] + .onComplete({ + case Success(complete) => + isSubscribed = true + logging.info(this, s"subscribe completed successfully...${complete}") + case Failure(e) => logging.error(this, s"subscribe failed...${e}") + }) + } + + override def createContainer(tid: TransactionId, + name: String, + actionImage: ExecManifest.ImageName, + userProvidedImage: Boolean, + memory: ByteSize)(implicit config: WhiskConfig, logging: Logging): Future[Container] = { + implicit val transid = tid + val image = if (userProvidedImage) { + actionImage.publicImageName + } else { + actionImage.localImageName(config.dockerRegistry, config.dockerImagePrefix, Some(config.dockerImageTag)) + } + + logging.info(this, s"using Mesos to create a container with image ${image}...") + MesosTask.create( + mesosClientActor, + mesosConfig, + taskIdGenerator, + tid, + image = image, + userProvidedImage = userProvidedImage, + memory = memory, + cpuShares = config.invokerCoreShare.toInt, + environment = Map("__OW_API_HOST" -> config.wskApiHost), + network = config.invokerContainerNetwork, + dnsServers = config.invokerContainerDns, + name = Some(name), + parameters) + } + + override def init(): Unit = Unit + + /** cleanup any remaining Containers; should block until complete; should ONLY be run at shutdown */ + override def cleanup(): Unit = { + val complete: Future[Any] = mesosClientActor.ask(Teardown)(20.seconds) + Await.result(complete, 25.seconds) + logging.info(this, "cleanup completed!") + } +} +object MesosContainerFactory { + private def createClient(actorSystem: ActorSystem, mesosConfig: MesosConfig): ActorRef = + actorSystem.actorOf( + MesosClient Review comment: there are plenty, each with their own awkward baggage... ---------------------------------------------------------------- This is an automated message from the Apache Git Service. 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