The example is currently unavailable in readme

[singhwang]

The example does not run up to [How to use it] in readme.I met the following problem.Which is the specific version of docker image confluentinc/cp-kafka?

kubectl get pods

NAME READY STATUS RESTARTS AGE busybox 1/1 Running 40 1d cruise-control-test-cluster-1-d5c7db4d4-7w7zl 0/1 CrashLoopBackOff 142 10h glusterblock-provisioner-565889669f-f9qkn 1/1 Running 1 6d glusterfile-provisioner-854d6575f-lg27c 1/1 Running 2 6d glusterfs-6z6kd 1/1 Running 2 11d glusterfs-simple-provisioner-7766dd59fb-lt66m 1/1 Running 2 7d glusterfs-t5x9q 1/1 Running 2 11d kafka-offset-checker-test-cluster-1-654658954-ts49g 0/1 CrashLoopBackOff 132 10h kafka-operator-54c96598c5-52gbp 1/1 Running 0 10h test-cluster-1-0 0/1 CrashLoopBackOff 3 2m test-cluster-1-1 0/1 CrashLoopBackOff 3 2m zk-0 1/1 Running 0 10h

kubectl logs test-cluster-1-0

... ERROR [KafkaServer id=0] Fatal error during KafkaServer startup. Prepare to shutdown (kafka.server.KafkaServer) org.apache.kafka.common.KafkaException: com.linkedin.kafka.cruisecontrol.metricsreporter.CruiseControlMetricsReporter ClassNotFoundException exception occurred at org.apache.kafka.common.config.AbstractConfig.getConfiguredInstances(AbstractConfig.java:357) at kafka.server.DynamicMetricsReporters.createReporters(DynamicBrokerConfig.scala:652) at kafka.server.DynamicMetricsReporters.(DynamicBrokerConfig.scala:600) at kafka.server.DynamicBrokerConfig.addReconfigurables(DynamicBrokerConfig.scala:161) at kafka.server.KafkaServer.startup(KafkaServer.scala:301) at io.confluent.support.metrics.SupportedServerStartable.startup(SupportedServerStartable.java:117) at io.confluent.support.metrics.SupportedKafka.main(SupportedKafka.java:62) Caused by: java.lang.ClassNotFoundException: com.linkedin.kafka.cruisecontrol.metricsreporter.CruiseControlMetricsReporter at java.net.URLClassLoader.findClass(URLClassLoader.java:381) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:348) at org.apache.kafka.common.utils.Utils.loadClass(Utils.java:322) at org.apache.kafka.common.utils.Utils.newInstance(Utils.java:311) at org.apache.kafka.common.config.AbstractConfig.getConfiguredInstances(AbstractConfig.java:355) ... 6 more ...