markusthoemmes commented on a change in pull request #2659: Containerfactory SPI
URL:
https://github.com/apache/incubator-openwhisk/pull/2659#discussion_r137644533
##########
File path: core/invoker/src/main/scala/whisk/core/invoker/InvokerReactive.scala
##########
@@ -72,31 +69,12 @@ class InvokerReactive(config: WhiskConfig, instance:
InstanceId, producer: Messa
consumer, maximumContainers, 500.milliseconds,
processActivationMessage)
})
- /** Initialize container clients */
- implicit val docker = new DockerClientWithFileAccess()(ec)
- implicit val runc = new RuncClient(ec)
-
- /** Cleans up all running wsk_ containers */
- def cleanup() = {
- val cleaning = docker.ps(Seq("name" ->
s"wsk${instance.toInt}_"))(TransactionId.invokerNanny).flatMap { containers =>
- val removals = containers.map { id =>
- runc.resume(id)(TransactionId.invokerNanny).recoverWith {
- // Ignore resume failures and try to remove anyway
- case _ => Future.successful(())
- }.flatMap {
- _ => docker.rm(id)(TransactionId.invokerNanny)
- }
- }
- Future.sequence(removals)
- }
-
- Await.ready(cleaning, 30.seconds)
- }
- cleanup()
- sys.addShutdownHook(cleanup())
/** Factory used by the ContainerProxy to physically create a new
container. */
- val containerFactory =
SpiLoader.get[ContainerFactoryProvider]().getContainerFactory(actorSystem,
logging, config).createContainer _
+ val containerFactory =
SpiLoader.get[ContainerFactoryProvider].getContainerFactory(actorSystem,
logging, config, instance)
+ val containerFactoryFunction = containerFactory.createContainer _
+ containerFactory.cleanup()
+ sys.addShutdownHook(containerFactory.cleanup())
Review comment:
For posterity:
```scala
def addShutdownHook(body: => Unit): ShutdownHookThread =
ShutdownHookThread(body)
```
`body` is a by-name argument, which is only evaluated once its used. I agree
it looks like the function is actually called, but braces or parentheses do no
make a difference in Scala here.
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