Container fails to start; no useful error reported about docker-it-scala

[viktortnk]

Looks like you are using docker-java implementation on MacOS. Sorry, I have different environment setup these days. I'd recommend trying Spotify-based executor, at very least in that case I might be able to reproduce your steps

[akauppi]

@michael-s-grant Hi, are you still having this problem?

I've got an environment similar to yours, and can maybe help. One thing that caught my eye is the val KafkaAdvertisedHost = "192.168.99.100". With macOS and docker-machine, this is often so but not necessarily always.

What do you get with:

$ docker-machine ip
192.168.99.100

[michael-s-grant]

@akauppi Thanks for your feedback. In response to your first question, since we needed something working back in October, I implemented a considerably more verbose and less elegant solution in Java instead. Now, we're moving towards getting Maven to run Docker containers for our system tests rather than have them started by the tests themselves, so we're less likely to be in this situation again; but it would still be good to know how to solve this problem, just in case.

And in response to your second question, the docker-machine is 192.168.99.100, in my case (though the command you suggested gives me an error "Error getting IP address: Something went wrong running an SSH command!", but this is demonstrably not critical as everything else I do to access the machine via this address, including the abovementioned Java workaround, works fine).

[mdotson]

@michael-s-grant I think it'd be better for you to move your example to a real test that we can just copy and paste in. The example is incomplete, since you don't have zookeeper at all, and the container will certainly die given that it can't register with zookeeper. You may have zookeeper running from outside via docker run, but it's still much easier to reproduce given a full test.

[viktortnk]

I've just made working example for Kafka. https://github.com/viktortnk/docker-testkit-examples
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