Knative route from AWS S3 endpoint immediatly stops after starting

[lubuxnl]

In order to do the Red Hat Knative tutorial I created a Vagrant box with Virtualbox on Windows 10 Pro. In the VM I'm running Minikube v1.3.1 with the none driver and with this setup I was able to do the exercises with Knative serving and eventing v0.7.1. To do the exercises with Camel-K I installed camel-k v0.3.4 and ran several of the examples from the camel-k git repo successfully, including the Knative examples. When running the first example from the Knative tutorial however, I noticed the route starts successfully, but then immediately stops. After stopping the log shows an UnresolvedAddressException (see attached logfile). I found a similar issue (#506) in this repo, but that issue was apparently fixed in camel-k-runtime 0.3.1, while camel-k v0.3.4 uses version 0.3.3 of camel-k-runtime. Any ideas how to fix this?

[nicolaferraro]

Hi @lubuxnl , camel k version that is compatible with Knative 0.7.1 is v 1.0.0-M1. Can you try with that?

Also it does not matter how you call the knative listener service, if it doesn't work, can you try to replace:

from("knative:endpoint/s3filelogger")

With:

from("knative:endpoint/default")

[lubuxnl]

Thanks for your feedback @nicolaferraro As you suggested I upgraded my camel-k installation to v1.0.0-M1 and tried to run the example again. This time however the route didn't even start, because a class (org.apache.camel.processor.idempotent.MemoryIdempotentRepository) couldn't be found (see attached logfile). Really strange, because the Camel jars seem to be in the classpath. Any ideas what is causing this error? In the meanwhile I will go back to the previous camel-k version and try changing the name of the endpoint.

[nicolaferraro]

Probably because v1.0.0-M1 uses camel 3 by default.

You should reinstall deleting the platform configuration:

kubectl delete integrationplatform --all
kamel install

[lburgazzoli]

looks like the tutorial need to be updated to reflect the changes in camel 3.x as MemoryIdempotentRepository has been moved to a different package org.apache.camel.support.processor.idempotent

[lubuxnl]

Thanks for your tips @nicolaferraro and @lburgazzoli After updating the package of the MemoryIdempotentRepository class the knative route starts fine :-)