Use netcat to detect when Kafka is up (#1005)
Use netcat to detect when Kafka is up (#1005)

Signed-off-by: Isaac Hier <c63773f51b47d2b1e67e0c4ee318d3e274491104@uber.com>
jpkrohling/jaeger,jaegertracing/jaeger,pavolloffay/jaeger,pavolloffay/jaeger,pavolloffay/jaeger,jaegertracing/jaeger,jaegertracing/jaeger,pavolloffay/jaeger,jaegertracing/jaeger,uber/jaeger,uber/jaeger,pavolloffay/jaeger,jpkrohling/jaeger,jpkrohling/jaeger,jaegertracing/jaeger,uber/jaeger,uber/jaeger,jpkrohling/jaeger,jpkrohling/jaeger