docker run --link dbHost:dbHost  -v my/path/to/postgres/jar:postgres/ -it -h sandbox sequenceiq/spark:1.6.0 bash

val jdbcDF = sqlContext.read.format("jdbc").options(
  Map("url" -> "jdbc:postgresql://dbHost:5432/ticketapp?user=user&password=password",
    "dbtable" -> "events")
  ).load()