180f582b5e
Create Spark images containing Spark 1.0.0 by default. Change-Id: I13a3b35dc858c265553af3cf325d04f80f019ff2
Installs Spark on Ubuntu. Requires Hadoop CDH 4 (hadoop-cdh element).
It will install a version of Spark known to be compatible with CDH 4 This behaviour can be controlled also by using 'DIB_SPARK_VERSION' or directly with 'SPARK_DOWNLOAD_URL'
If you set 'SPARK_CUSTOM_DISTRO' to 1, you can point the 'SPARK_DOWNLOAD_URL' variable to a custom Spark distribution created with the make-distribution.sh script included in Spark.