[spark-action] Missing HADOOP_CONF_DIR property

Failing Oozie Launcher, When running with master 'yarn-cluster' either HADOOP_CONF_DIR or YARN_CONF_DIR must be set in the environment.
org.apache.spark.SparkException: When running with master 'yarn-cluster' either HADOOP_CONF_DIR or YARN_CONF_DIR must be set in the environment.
        at org.apache.spark.deploy.SparkSubmitArguments.error(SparkSubmitArguments.scala:657)
        at org.apache.spark.deploy.SparkSubmitArguments.validateSubmitArguments(SparkSubmitArguments.scala:290)
        at org.apache.spark.deploy.SparkSubmitArguments.validateArguments(SparkSubmitArguments.scala:251)
        at org.apache.spark.deploy.SparkSubmitArguments.<init>(SparkSubmitArguments.scala:120)
        at org.apache.spark.deploy.SparkSubmit$$anon$2$$anon$1.<init>(SparkSubmit.scala:926)
        at org.apache.spark.deploy.SparkSubmit$$anon$2.parseArguments(SparkSubmit.scala:926)
        at org.apache.spark.deploy.SparkSubmit.doSubmit(SparkSubmit.scala:81)
        at org.apache.spark.deploy.SparkSubmit$$anon$2.doSubmit(SparkSubmit.scala:939)
        at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:948)
        at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)
        at org.apache.oozie.action.hadoop.SparkMain.runSpark(SparkMain.java:186)
        at org.apache.oozie.action.hadoop.SparkMain.run(SparkMain.java:93)
        at org.apache.oozie.action.hadoop.LauncherMain.run(LauncherMain.java:104)
        at org.apache.oozie.action.hadoop.SparkMain.main(SparkMain.java:60)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.apache.oozie.action.hadoop.LauncherAM.runActionMain(LauncherAM.java:410)
        at org.apache.oozie.action.hadoop.LauncherAM.access$300(LauncherAM.java:55)
        at org.apache.oozie.action.hadoop.LauncherAM$2.run(LauncherAM.java:223)
        at java.security.AccessController.doPrivileged(Native Method)
        at javax.security.auth.Subject.doAs(Subject.java:422)
        at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1730)
        at org.apache.oozie.action.hadoop.LauncherAM.run(LauncherAM.java:217)
        at org.apache.oozie.action.hadoop.LauncherAM$1.run(LauncherAM.java:153)
        at java.security.AccessController.doPrivileged(Native Method)
        at javax.security.auth.Subject.doAs(Subject.java:422)
        at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1730)
        at org.apache.oozie.action.hadoop.LauncherAM.main(LauncherAM.java:141)