Docs: Apache Kafka Channel Example(docs/eventing/samples/kafka/channel/index.md)

[mjschmidt]

Expected Behavior

kubectl label namespace default knative-eventing-injection=enabled
Should result in the following channels being created:
```...
knative-messaging-kafka.default.default-kn2-ingress
knative-messaging-kafka.default.default-kn2-trigger

## Actual Behavior
These topics are not created:

kubectl -n kafka exec -it my-cluster-kafka-0 -- bin/kafka-topics.sh --zookeeper localhost:2181 --list`
The resulting created kafka channels are:

Defaulting container name to kafka.
Use 'kubectl describe pod/my-cluster-kafka-0 -n kafka' to see all of the containers in this pod.
OpenJDK 64-Bit Server VM warning: If the number of processors is expected to increase from one, then you should configure the number of parallel GC threads appropriately using -XX:ParallelGCThreads=N
__consumer_offsets
knative-messaging-kafka.default.my-kafka-channel
knative-messaging-kafka.default.testchannel-one
my-topic
```

This results in the logs at the end of the example from this command being empty and the example ultimately fails:
kubectl logs --selector='serving.knative.dev/service=broker-kafka-display' -c user-container

I also tried to create the service account and try that as well but it did not work. What can I look at next?

Install information:

• Platform (GKE, IKS, AKS, etc.): Rancher on prem deployment with rancher's istio installation
• Knative Version: 1.14.0
  
  
  
  • Kubernetes version 1.15.x
  
  

[erekgit]

@mjschmidt I am also experiencing the same issue. the ingress and trigger topics are not being created.

[erekgit]

@mjschmidt Does this work with Knative 0.13?

[mjschmidt]

I do not know it didn't work in knative 11, but I have not tried 13. I keep checking back periodically.

[medenzon]

@erekgit I’m seeing the same behavior

[mjschmidt]

I am glad that other people are seeing this issue. I wish I knew more and where to look and could help more

[erekgit]

@mjschmidt can you show the output from the logs of your default-broker-filter?

kubectl logs default-broker-filter-XXXXX

[mjschmidt]

I cannot I took down the deployment for now. I can set it back up later and get back to you though! @erekgit

[erekgit]

@mjschmidt I was able to get the Channel and Sourcing to work, will draft up my results that are appropriate for public release.

1.) I'd recommend installing Istio with Automatic Sidecar Injection Disabled by Default

2.) Enable Istio Local Cluster Gateway

(See if this is enough to get you in working order ^^^ but i still do not see the ingress and trigger topics being automatically created -- Though this doesn't seem to matter?)

3.) The Sourcing has an issue with the event_display image being broken. Found another GitHub Issue where they're referencing a different image revision. (See: https://github.com/knative/docs/issues/2145 )

[erekgit]

PR https://github.com/knative/docs/pull/2532 Merged to resolve the 3rd issue. above ^^^

[evankanderson]

Looks like @erekgit fixed this.

FYI, you can use the string Fixes #2481 in your PR description to have it auto-close the related issue.

[evankanderson]

/close

[knative-prow-robot]

@evankanderson: Closing this issue.

In response to this:

/close

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