Config runtime

Sometimes, admin may want to reinitalize the runtime config depend on
the real requirements, e.g. increase some prewarm containers

ansible/group_vars/all

@@ -105,6 +105,8 @@ controller:
   authentication:
     spi: "{{ controller_authentication_spi | default('') }}"
   loglevel: "{{ controller_loglevel | default(whisk_loglevel) | default('INFO') }}"
+  username: "{{ controller_username | default('controller.user') }}"
+  password: "{{ controller_password | default('controller.pass') }}"
   entitlement:
     spi: "{{ controller_entitlement_spi | default('') }}"
   protocol: "{{ controller_protocol | default('https') }}"

ansible/roles/controller/tasks/deploy.yml

@@ -203,6 +203,9 @@
       "CONFIG_whisk_db_activationsFilterDdoc": "{{ db_whisk_activations_filter_ddoc | default() }}"
       "CONFIG_whisk_userEvents_enabled": "{{ user_events | default(false) | lower }}"
 
+      "CONFIG_whisk_credentials_controller_username": "{{ controller.username }}"
+      "CONFIG_whisk_credentials_controller_password": "{{ controller.password }}"
+
       "LIMITS_ACTIONS_INVOKES_PERMINUTE": "{{ limits.invocationsPerMinute }}"
       "LIMITS_ACTIONS_INVOKES_CONCURRENT": "{{ limits.concurrentInvocations }}"
       "LIMITS_TRIGGERS_FIRES_PERMINUTE": "{{ limits.firesPerMinute }}"

common/scala/src/main/scala/org/apache/openwhisk/common/ComponentCredentials.scala

@@ -0,0 +1,20 @@
+/*
+ * 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.openwhisk.common
+
+case class ControllerCredentials(username: String, password: String)

common/scala/src/main/scala/org/apache/openwhisk/core/WhiskConfig.scala

@@ -269,4 +269,6 @@ object ConfigKeys {
   val apacheClientConfig = "whisk.apache-client"
 
   val parameterStorage = "whisk.parameter-storage"
+
+  val controllerCredentials = "whisk.credentials.controller"
 }

common/scala/src/main/scala/org/apache/openwhisk/core/connector/Message.scala

@@ -429,3 +429,30 @@ object EventMessage extends DefaultJsonProtocol {
 
   def parse(msg: String) = Try(format.read(msg.parseJson))
 }
+
+case class RuntimeMessage(runtime: String) extends Message {
+  override def serialize = RuntimeMessage.serdes.write(this).compactPrint
+}
+
+object RuntimeMessage extends DefaultJsonProtocol {
+  def parse(msg: String) = Try(serdes.read(msg.parseJson))
+  implicit val serdes = jsonFormat(RuntimeMessage.apply _, "runtime")
+}
+
+case class PrewarmContainerData(kind: String, memory: Long, var number: Int) extends Message {
+  override def serialize: String = PrewarmContainerData.serdes.write(this).compactPrint
+}
+
+object PrewarmContainerData extends DefaultJsonProtocol {
+  implicit val serdes = jsonFormat(PrewarmContainerData.apply _, "kind", "memory", "number")
+}
+
+case class PrewarmContainerDataList(items: List[PrewarmContainerData])
+
+object PrewarmContainerDataProtocol extends DefaultJsonProtocol {
+  implicit val prewarmContainerDataFormat = jsonFormat(PrewarmContainerData.apply _, "kind", "memory", "number")
+  implicit object prewarmContainerDataListJsonFormat extends RootJsonFormat[PrewarmContainerDataList] {
+    def read(value: JsValue) = PrewarmContainerDataList(value.convertTo[List[PrewarmContainerData]])
+    def write(f: PrewarmContainerDataList) = ???
+  }
+}

common/scala/src/main/scala/org/apache/openwhisk/core/entity/ExecManifest.scala

@@ -55,6 +55,20 @@ protected[core] object ExecManifest {
     mf
   }
 
+  /**
+   * Reads runtimes manifest from runtime string
+   *
+   * @param runtime
+   * @return the manifest if initialized successfully, or an failure
+   */
+  protected[core] def initialize(runtime: String): Try[Runtimes] = {
+    val rmc = loadConfigOrThrow[RuntimeManifestConfig](ConfigKeys.runtimes)
+    val mf = Try(runtime.parseJson.asJsObject).flatMap(runtimes(_, rmc))
+    var manifest: Option[Runtimes] = None
+    mf.foreach(m => manifest = Some(m))
+    mf
+  }
+
   /**
    * Gets existing runtime manifests.
    *

core/controller/src/main/scala/org/apache/openwhisk/core/controller/Controller.scala

@@ -21,8 +21,9 @@ import akka.Done
 import akka.actor.{ActorSystem, CoordinatedShutdown}
 import akka.event.Logging.InfoLevel
 import akka.http.scaladsl.marshallers.sprayjson.SprayJsonSupport._
+import akka.http.scaladsl.model.{StatusCodes, Uri}
 import akka.http.scaladsl.model.StatusCodes._
-import akka.http.scaladsl.model.Uri
+import akka.http.scaladsl.model.headers.BasicHttpCredentials
 import akka.http.scaladsl.server.Route
 import akka.stream.ActorMaterializer
 import kamon.Kamon
@@ -31,8 +32,15 @@ import pureconfig.generic.auto._
 import spray.json.DefaultJsonProtocol._
 import spray.json._
 import org.apache.openwhisk.common.Https.HttpsConfig
-import org.apache.openwhisk.common.{AkkaLogging, ConfigMXBean, Logging, LoggingMarkers, TransactionId}
-import org.apache.openwhisk.core.WhiskConfig
+import org.apache.openwhisk.common.{
+  AkkaLogging,
+  ConfigMXBean,
+  ControllerCredentials,
+  Logging,
+  LoggingMarkers,
+  TransactionId
+}
+import org.apache.openwhisk.core.{ConfigKeys, WhiskConfig}
 import org.apache.openwhisk.core.connector.MessagingProvider
 import org.apache.openwhisk.core.containerpool.logging.LogStoreProvider
 import org.apache.openwhisk.core.database.{ActivationStoreProvider, CacheChangeNotification, RemoteCacheInvalidation}
@@ -97,7 +105,7 @@ class Controller(val instance: ControllerInstanceId,
       (pathEndOrSingleSlash & get) {
         complete(info)
       }
-    } ~ apiV1.routes ~ swagger.swaggerRoutes ~ internalInvokerHealth
+    } ~ apiV1.routes ~ swagger.swaggerRoutes ~ internalInvokerHealth ~ configRuntime
   }
 
   // initialize datastores
@@ -176,6 +184,58 @@ class Controller(val instance: ControllerInstanceId,
     LogLimit.config,
     runtimes,
     List(apiV1.basepath()))
+
+  private val controllerCredentials = loadConfigOrThrow[ControllerCredentials](ConfigKeys.controllerCredentials)
+
+  /**
+   * config runtime
+   */
+  private val configRuntime = {
+    implicit val executionContext = actorSystem.dispatcher
+    (path("config" / "runtime") & post) {
+      extractCredentials {
+        case Some(BasicHttpCredentials(username, password)) =>
+          if (username == controllerCredentials.username && password == controllerCredentials.password) {
+            entity(as[String]) { runtime =>
+              val execManifest = ExecManifest.initialize(runtime)
+              if (execManifest.isFailure) {
+                logging.info(this, s"received invalid runtimes manifest")
+                complete(StatusCodes.BadRequest)
+              } else {
+                parameter('limit.?) { limit =>
+                  limit match {
+                    case Some(targetValue) =>
+                      val pattern = """\d+:\d"""
+                      if (targetValue.matches(pattern)) {
+                        val invokerArray = targetValue.split(":")
+                        val beginIndex = invokerArray(0).toInt
+                        val finishIndex = invokerArray(1).toInt
+                        if (finishIndex < beginIndex) {
+                          complete(StatusCodes.BadRequest, "finishIndex can't be less than beginIndex")
+                        } else {
+                          val targetInvokers = (beginIndex to finishIndex).toList
+                          loadBalancer.sendRuntimeToInvokers(runtime, Some(targetInvokers))
+                          logging.info(this, "config runtime request is already sent to target invokers")
+                          complete(StatusCodes.Accepted)
+                        }
+                      } else {
+                        complete(StatusCodes.BadRequest, "limit value can't match [beginIndex:finishIndex]")
+                      }
+                    case None =>
+                      loadBalancer.sendRuntimeToInvokers(runtime, None)
+                      logging.info(this, "config runtime request is already sent to all managed invokers")
+                      complete(StatusCodes.Accepted)
+                  }
+                }
+              }
+            }
+          } else {
+            complete(StatusCodes.Unauthorized, "username or password is wrong")
+          }
+        case _ => complete(StatusCodes.Unauthorized)
+      }
+    }
+  }
 }
 
 /**

core/controller/src/main/scala/org/apache/openwhisk/core/loadBalancer/LoadBalancer.scala

@@ -60,6 +60,14 @@ trait LoadBalancer {
   def publish(action: ExecutableWhiskActionMetaData, msg: ActivationMessage)(
     implicit transid: TransactionId): Future[Future[Either[ActivationId, WhiskActivation]]]
 
+  /**
+   * send runtime to invokers
+   *
+   * @param runtime
+   * @param targetInvokers
+   */
+  def sendRuntimeToInvokers(runtime: String, targetInvokers: Option[List[Int]]): Unit = {}
+
   /**
    * Returns a message indicating the health of the containers and/or container pool in general.
    *

core/controller/src/main/scala/org/apache/openwhisk/core/loadBalancer/ShardingContainerPoolBalancer.scala

@@ -43,6 +43,7 @@ import org.apache.openwhisk.spi.SpiLoader
 import scala.annotation.tailrec
 import scala.concurrent.Future
 import scala.concurrent.duration.FiniteDuration
+import scala.util.{Failure, Success}
 
 /**
  * A loadbalancer that schedules workload based on a hashing-algorithm.
@@ -316,6 +317,22 @@ class ShardingContainerPoolBalancer(
       }
   }
 
+  /** send runtime to invokers*/
+  override def sendRuntimeToInvokers(runtime: String, targetInvokers: Option[List[Int]]): Unit = {
+    val runtimeMessage = RuntimeMessage(runtime)
+    schedulingState.managedInvokers.filter { manageInvoker =>
+      targetInvokers.getOrElse(schedulingState.managedInvokers.map(_.id.instance)).contains(manageInvoker.id.instance)
+    } foreach { invokerHealth =>
+      val topic = s"invoker${invokerHealth.id.toInt}"
+      messageProducer.send(topic, runtimeMessage).andThen {
+        case Success(_) =>
+          logging.info(this, s"Successfully posted runtime to topic $topic")
+        case Failure(_) =>
+          logging.error(this, s"Failed posted runtime to topic $topic")
+      }
+    }
+  }
+
   override val invokerPool =
     invokerPoolFactory.createInvokerPool(
       actorSystem,

core/invoker/src/main/scala/org/apache/openwhisk/core/containerpool/ContainerPool.scala

@@ -20,11 +20,13 @@ package org.apache.openwhisk.core.containerpool
 import akka.actor.{Actor, ActorRef, ActorRefFactory, Props}
 import org.apache.openwhisk.common.MetricEmitter
 import org.apache.openwhisk.common.{AkkaLogging, LoggingMarkers, TransactionId}
-import org.apache.openwhisk.core.connector.MessageFeed
+import org.apache.openwhisk.core.connector.{MessageFeed, PrewarmContainerData}
 import org.apache.openwhisk.core.entity._
 import org.apache.openwhisk.core.entity.size._
+
 import scala.annotation.tailrec
 import scala.collection.immutable
+import scala.collection.mutable.ListBuffer
 import scala.concurrent.duration._
 import scala.util.Try
 
@@ -34,6 +36,9 @@ case object Free extends WorkerState
 
 case class WorkerData(data: ContainerData, state: WorkerState)
 
+case class PreWarmConfigList(list: List[PrewarmingConfig])
+object PrewarmQuery
+
 case object EmitMetrics
 
 /**
@@ -70,6 +75,7 @@ class ContainerPool(childFactory: ActorRefFactory => ActorRef,
   var busyPool = immutable.Map.empty[ActorRef, ContainerData]
   var prewarmedPool = immutable.Map.empty[ActorRef, ContainerData]
   var prewarmStartingPool = immutable.Map.empty[ActorRef, (String, ByteSize)]
+  var latestPrewarmConfig = prewarmConfig
   // If all memory slots are occupied and if there is currently no container to be removed, than the actions will be
   // buffered here to keep order of computation.
   // Otherwise actions with small memory-limits could block actions with large memory limits.
@@ -279,6 +285,23 @@ class ContainerPool(childFactory: ActorRefFactory => ActorRef,
     case RescheduleJob =>
       freePool = freePool - sender()
       busyPool = busyPool - sender()
+    case prewarmConfigList: PreWarmConfigList =>
+      latestPrewarmConfig = prewarmConfigList.list
+      // Delete prewarmedPool firstly
+      prewarmedPool foreach { element =>
+        val actor = element._1
+        actor ! Remove
+        prewarmedPool = prewarmedPool - actor
+      }
+      prewarmConfigList.list foreach { config =>
+        logging.info(this, s"add pre-warming ${config.count} ${config.exec.kind} ${config.memoryLimit.toString}")(
+          TransactionId.invokerWarmup)
+        (1 to config.count).foreach { _ =>
+          prewarmContainer(config.exec, config.memoryLimit)
+        }
+      }
+    case PrewarmQuery =>
+      sender() ! getPrewarmContainer()
     case EmitMetrics =>
       emitMetrics()
   }
@@ -304,7 +327,7 @@ class ContainerPool(childFactory: ActorRefFactory => ActorRef,
 
   /** Install prewarm containers up to the configured requirements for each kind/memory combination. */
   def backfillPrewarms(init: Boolean) = {
-    prewarmConfig.foreach { config =>
+    latestPrewarmConfig.foreach { config =>
       val kind = config.exec.kind
       val memory = config.memoryLimit
       val currentCount = prewarmedPool.count {
@@ -375,6 +398,33 @@ class ContainerPool(childFactory: ActorRefFactory => ActorRef,
     busyPool = busyPool - toDelete
   }
 
+  /**
+   * get the prewarm container
+   * @return
+   */
+  def getPrewarmContainer(): ListBuffer[PrewarmContainerData] = {
+    val containerDataList = prewarmedPool.values.toList.map { data =>
+      data.asInstanceOf[PreWarmedData]
+    }
+
+    var resultList: ListBuffer[PrewarmContainerData] = new ListBuffer[PrewarmContainerData]()
+    containerDataList.foreach { prewarmData =>
+      val isInclude = resultList.filter { resultData =>
+        prewarmData.kind == resultData.kind && prewarmData.memoryLimit.toMB == resultData.memory
+      }.size > 0
+
+      if (isInclude) {
+        var resultData = resultList.filter { resultData =>
+          prewarmData.kind == resultData.kind && prewarmData.memoryLimit.toMB == resultData.memory
+        }.head
+        resultData.number += 1
+      } else {
+        resultList += PrewarmContainerData(prewarmData.kind, prewarmData.memoryLimit.toMB, 1)
+      }
+    }
+    resultList
+  }
+
   /**
    * Calculate if there is enough free memory within a given pool.
    *

core/invoker/src/main/scala/org/apache/openwhisk/core/invoker/DefaultInvokerServer.scala

@@ -0,0 +1,49 @@
+/*
+ * 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.openwhisk.core.invoker
+
+import akka.actor.ActorSystem
+import akka.http.scaladsl.server.Route
+import org.apache.openwhisk.common.{Logging, TransactionId}
+
+import org.apache.openwhisk.http.BasicRasService
+
+import scala.concurrent.ExecutionContext
+
+/**
+ * Implements web server to handle certain REST API calls.
+ */
+class DefaultInvokerServer(val invoker: InvokerCore)(implicit val ec: ExecutionContext,
+                                                     val actorSystem: ActorSystem,
+                                                     val logger: Logging)
+    extends BasicRasService {
+
+  override def routes(implicit transid: TransactionId): Route = {
+    super.routes ~ {
+      (path("getRuntime") & get) {
+        invoker.getRuntime()
+      }
+    }
+  }
+}
+
+object DefaultInvokerServer extends InvokerServerProvider {
+  override def instance(
+    invoker: InvokerCore)(implicit ec: ExecutionContext, actorSystem: ActorSystem, logger: Logging): BasicRasService =
+    new DefaultInvokerServer(invoker)
+}