unable to create trigger from openwhisk kafka feed that listens to a Generic Kafka instance - openwhisk

Question

I have openwhisk local installation on Ubuntu 16.04 desktop. Actions, triggers, rules and alarm triggers are working.
I cloned the git repository https://github.com/apache/incubator-openwhisk-package-kafka and ran the following in sequence:
installCatalog.sh , gradlew :distDocker, installKafka.sh
Then I tried to create a trigger:
bin/wsk trigger create MyKafkaTrigger -f /messaging/kafkaFeed -p brokers "
[\"localhost:9092\", \"localhost:9093\"]" -p topic test -p isJSONData true -
-insecure
I am following this section of the README: "Creating a Trigger that listens to a Generic Kafka instance"
I am re-using the Kafka instance created as part of Openwhisk installation, and created a topic named 'test' - I am able to publish / consume to this topic using kafka command line tools.
The trigger creation fails (it deletes the trigger, saying resource does not exist).
One thing I observed is that the following packages were created under /guest:
bin/wsk package list /guest --insecurepackages
/guest/messagingWeb
private
/guest/messaging
I did change the feed name to /guest/messaging/kafkFeed, only kafkaFeed, etc., but the results are slightly different:
bin/wsk trigger create MyKafkaTrigger -f /guest/messaging/kafkaFeed -p
brokers "[\"localhost:9092\", \"localhost:9093\"]" -p topic test -p
isJSONData true --insecure
GIVES a JSON output saying "error": "The requested resource does not exist."
bin/wsk trigger create MyKafkaTrigger -f /messaging/kafkaFeed -p brokers "
[\"localhost:9092\", \"localhost:9093\"]" -p topic test -p isJSONData true -
-insecure
GIVES
ok: deleted trigger MyKafkaTrigger
error: Unable to create trigger 'MyKafkaTrigger': Unable to invoke trigger
'MyKafkaTrigger' feed action '/messaging/kafkaFeed'; feed is not configured:
Unable to invoke action 'kafkaFeed': The supplied authentication is not
authorized to access this resource. (code 186)
Looking for any help

Answer 1

I followed the dev guide to get up and running: https://github.com/apache/incubator-openwhisk-package-kafka/blob/master/devGuide.md
Here are the steps I did to get a feed trigger successfully created:
Take note of the auth key by running
bin/wsk -i property get --auth
Run the install script
./installKafka.sh <authKey> <edgehost> <dburl> <dbprefix> <apihost>
Note that the value of authKey is the value obtained from step 1. For the values of the other parameters, see https://github.com/apache/incubator-openwhisk-package-kafka/blob/master/devGuide.md#install-actions
Once the install script completes successfully, verify that the correct packages are installed. You should see the messaging and messagingWeb packages. e.g
bin/wsk -i package list /guest
packages
/guest/messagingWeb private
/guest/messaging shared
Now verify that the kafkaFeed action exists
bin/wsk -i package get --summary /guest/messaging
package /guest/messaging: Returns a result based on parameter endpoint
(parameters: *endpoint)
action /guest/messaging/kafkaProduce: Produce a message to a Kafka cluster
(parameters: base64DecodeKey, base64DecodeValue, brokers, key, topic, value)
feed /guest/messaging/kafkaFeed: Feed to listen to Kafka messages
(parameters: brokers, endpoint, isBinaryKey, isBinaryValue, isJSONData, topic)
Now you can create a trigger by either passing in the namespace as part of the full package name, or leaving off the leading / from the package name
bin/wsk -i trigger create MyKafkaTrigger -f /guest/messaging/kafkaFeed -p brokers "[\"localhost:9092\", \"localhost:9093\"]" -p topic test -p isJSONData true
OR
bin/wsk -i trigger create MyKafkaTrigger -f messaging/kafkaFeed -p brokers "[\"localhost:9092\", \"localhost:9093\"]" -p topic test -p isJSONData true