HeartSaVioR commented on a change in pull request #28019: [SPARK-31021][SQL] 
Support MariaDB Kerberos login in JDBC connector
URL: https://github.com/apache/spark/pull/28019#discussion_r399785210
 
 

 ##########
 File path: 
external/docker-integration-tests/src/test/scala/org/apache/spark/sql/jdbc/DockerJDBCIntegrationSuite.scala
 ##########
 @@ -53,11 +53,21 @@ abstract class DatabaseOnDocker {
    */
   val jdbcPort: Int
 
+  /**
+   * Optional database name to connect to (not all database drivers need this).
+   */
+  var dbName: Option[String]
+
   /**
    * Return a JDBC URL that connects to the database running at the given IP 
address and port.
    */
   def getJdbcUrl(ip: String, port: Int): String
 
+  /**
+   * Optional entry point when container starts
+   */
+  def getEntryPoint: Option[String]
 
 Review comment:
   Maybe better to elaborate more on `entry point` - which value is expected 
and how the entry point is supposed to be used.

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