I got an error like this.

$ docker run -it flink-job:latest job-cluster
Starting the job-cluster
config file:
jobmanager.rpc.address: localhost
jobmanager.rpc.port: 6123
jobmanager.heap.size: 1024m
taskmanager.heap.size: 1024m
taskmanager.numberOfTaskSlots: 1
parallelism.default: 1
rest.port: 8081
Starting standalonejob as a console application on host cf9bd047082c.
2018-08-24 22:33:00,773 INFO org.apache.flink.runtime.entrypoint.ClusterEntrypoint - --------------------------------------------------------------------------------
2018-08-24 22:33:00,774 INFO org.apache.flink.runtime.entrypoint.ClusterEntrypoint - Starting StandaloneJobClusterEntryPoint (Version: 1.6.0, Rev:ff472b4, Date:07.08.2018 @ 13:31:13 UTC)
2018-08-24 22:33:00,775 INFO org.apache.flink.runtime.entrypoint.ClusterEntrypoint - OS current user: flink
2018-08-24 22:33:01,168 WARN org.apache.hadoop.util.NativeCodeLoader - Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
2018-08-24 22:33:01,232 INFO org.apache.flink.runtime.entrypoint.ClusterEntrypoint - Current Hadoop/Kerberos user: flink
2018-08-24 22:33:01,232 INFO org.apache.flink.runtime.entrypoint.ClusterEntrypoint - JVM: OpenJDK 64-Bit Server VM - Oracle Corporation - 1.8/25.111-b14
2018-08-24 22:33:01,232 INFO org.apache.flink.runtime.entrypoint.ClusterEntrypoint - Maximum heap size: 981 MiBytes
2018-08-24 22:33:01,232 INFO org.apache.flink.runtime.entrypoint.ClusterEntrypoint - JAVA_HOME: /usr/lib/jvm/java-1.8-openjdk/jre
2018-08-24 22:33:01,236 INFO org.apache.flink.runtime.entrypoint.ClusterEntrypoint - Hadoop version: 2.8.3
2018-08-24 22:33:01,236 INFO org.apache.flink.runtime.entrypoint.ClusterEntrypoint - JVM Options:
2018-08-24 22:33:01,236 INFO org.apache.flink.runtime.entrypoint.ClusterEntrypoint - -Xms1024m
2018-08-24 22:33:01,236 INFO org.apache.flink.runtime.entrypoint.ClusterEntrypoint - -Xmx1024m
2018-08-24 22:33:01,237 INFO org.apache.flink.runtime.entrypoint.ClusterEntrypoint - -Dlog4j.configuration=file:/opt/flink-1.6.0/conf/log4j-console.properties
2018-08-24 22:33:01,237 INFO org.apache.flink.runtime.entrypoint.ClusterEntrypoint - -Dlogback.configurationFile=file:/opt/flink-1.6.0/conf/logback-console.xml
2018-08-24 22:33:01,237 INFO org.apache.flink.runtime.entrypoint.ClusterEntrypoint - Program Arguments:
2018-08-24 22:33:01,237 INFO org.apache.flink.runtime.entrypoint.ClusterEntrypoint - --configDir
2018-08-24 22:33:01,238 INFO org.apache.flink.runtime.entrypoint.ClusterEntrypoint - /opt/flink-1.6.0/conf
2018-08-24 22:33:01,238 INFO org.apache.flink.runtime.entrypoint.ClusterEntrypoint - Classpath: /opt/flink-1.6.0/lib/flink-python_2.11-1.6.0.jar:/opt/flink-1.6.0/lib/flink-shaded-hadoop2-uber-1.6.0.jar:/opt/flink-1.6.0/lib/job.jar:/opt/flink-1.6.0/lib/log4j-1.2.17.jar:/opt/flink-1.6.0/lib/slf4j-log4j12-1.7.7.jar:/opt/flink-1.6.0/lib/flink-dist_2.11-1.6.0.jar:::
2018-08-24 22:33:01,238 INFO org.apache.flink.runtime.entrypoint.ClusterEntrypoint - --------------------------------------------------------------------------------
2018-08-24 22:33:01,240 INFO org.apache.flink.runtime.entrypoint.ClusterEntrypoint - Registered UNIX signal handlers for [TERM, HUP, INT]
2018-08-24 22:33:01,248 ERROR org.apache.flink.runtime.entrypoint.ClusterEntrypoint - Could not parse command line arguments [--configDir, /opt/flink-1.6.0/conf].
org.apache.flink.runtime.entrypoint.FlinkParseException: Failed to parse the command line arguments.
at org.apache.flink.runtime.entrypoint.parser.CommandLineParser.parse(CommandLineParser.java:52)
at org.apache.flink.container.entrypoint.StandaloneJobClusterEntryPoint.main(StandaloneJobClusterEntryPoint.java:143)
Caused by: org.apache.commons.cli.MissingOptionException: Missing required option: j
at org.apache.commons.cli.DefaultParser.checkRequiredOptions(DefaultParser.java:199)
at org.apache.commons.cli.DefaultParser.parse(DefaultParser.java:130)
at org.apache.commons.cli.DefaultParser.parse(DefaultParser.java:81)
at org.apache.flink.runtime.entrypoint.parser.CommandLineParser.parse(CommandLineParser.java:50)
... 1 more
Exception in thread "main" java.lang.IllegalArgumentException: cmdLineSyntax not provided
at org.apache.commons.cli.HelpFormatter.printHelp(HelpFormatter.java:546)
at org.apache.commons.cli.HelpFormatter.printHelp(HelpFormatter.java:492)
at org.apache.commons.cli.HelpFormatter.printHelp(HelpFormatter.java:408)
at org.apache.flink.runtime.entrypoint.parser.CommandLineParser.printHelp(CommandLineParser.java:60)
at org.apache.flink.container.entrypoint.StandaloneJobClusterEntryPoint.main(StandaloneJobClusterEntryPoint.java:146)