Troubleshooting Kafka Bootstrap Connection Issue in DataHub Actions

Original Slack Thread

Hi team! I’m testing DataHub Actions and was able to complete a custom action I wrote when teh DataHub server and the action are run in the same AWS instance. However, when I try to run them in separate instances, I cannot reach the Kafka Bootsrap Server due to this error:

%3|1705440950.713|FAIL|rdkafka#consumer-1| [thrd:GroupCoordinator]: GroupCoordinator: localhost:9092: Connect to ipv4# failed: Connection refused (after 0ms in state CONNECT)```
The config for the action looks like this:
  type: "kafka"
      bootstrap: "private-ip-datahub-instance:9092"
      schema_registry_url: "<http://private-ip-datahub-instance:8081>"```
Why does it try to connect to `localhost` if I'm specifying an IP address? Thank you in advance for your suggestions!

that is very very strange - it should not be using localhost if you are providing this in the configuration, i’ve never seen this issue before. The private ip is something like 10.0.1.x right?

one possibility is that your action file is not getting correctly picked up - how are you deploying it? using the CLI