[SPARK-13595][BUILD] Move docker, extras modules into external

## What changes were proposed in this pull request?

Move `docker` dirs out of top level into `external/`; move `extras/*` into `external/`

## How was this patch tested?

This is tested with Jenkins tests.

Author: Sean Owen <sowen@cloudera.com>

Closes #11523 from srowen/SPARK-13595.

2 files changed, 0 insertions, 139 deletions

diff --git a/extras/spark-ganglia-lgpl/pom.xml b/extras/spark-ganglia-lgpl/pom.xml
deleted file mode 100644
index bfb92791de..0000000000
--- a/extras/spark-ganglia-lgpl/pom.xml
+++ /dev/null
@@ -1,49 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!--
-~ Licensed to the Apache Software Foundation (ASF) under one or more
-~ contributor license agreements.  See the NOTICE file distributed with
-~ this work for additional information regarding copyright ownership.
-~ The ASF licenses this file to You under the Apache License, Version 2.0
-~ (the "License"); you may not use this file except in compliance with
-~ the License.  You may obtain a copy of the License at
-~
-~    http://www.apache.org/licenses/LICENSE-2.0
-~
-~ Unless required by applicable law or agreed to in writing, software
-~ distributed under the License is distributed on an "AS IS" BASIS,
-~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-~ See the License for the specific language governing permissions and
-~ limitations under the License.
--->
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-  <modelVersion>4.0.0</modelVersion>
-  <parent>
-    <groupId>org.apache.spark</groupId>
-    <artifactId>spark-parent_2.11</artifactId>
-    <version>2.0.0-SNAPSHOT</version>
-    <relativePath>../../pom.xml</relativePath>
-  </parent>
-
-  <!-- Ganglia integration is not included by default due to LGPL-licensed code -->
-  <groupId>org.apache.spark</groupId>
-  <artifactId>spark-ganglia-lgpl_2.11</artifactId>
-  <packaging>jar</packaging>
-  <name>Spark Ganglia Integration</name>
-
-  <properties>
-    <sbt.project.name>ganglia-lgpl</sbt.project.name>
-  </properties>
-
-  <dependencies>
-    <dependency>
-      <groupId>org.apache.spark</groupId>
-      <artifactId>spark-core_${scala.binary.version}</artifactId>
-      <version>${project.version}</version>
-    </dependency>
-
-    <dependency>
-      <groupId>io.dropwizard.metrics</groupId>
-      <artifactId>metrics-ganglia</artifactId>
-    </dependency>
-  </dependencies>
-</project>
diff --git a/extras/spark-ganglia-lgpl/src/main/scala/org/apache/spark/metrics/sink/GangliaSink.scala b/extras/spark-ganglia-lgpl/src/main/scala/org/apache/spark/metrics/sink/GangliaSink.scala
deleted file mode 100644
index 3b1880e143..0000000000
--- a/extras/spark-ganglia-lgpl/src/main/scala/org/apache/spark/metrics/sink/GangliaSink.scala
+++ /dev/null
@@ -1,90 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *    http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.apache.spark.metrics.sink
-
-import java.util.Properties
-import java.util.concurrent.TimeUnit
-
-import com.codahale.metrics.MetricRegistry
-import com.codahale.metrics.ganglia.GangliaReporter
-import info.ganglia.gmetric4j.gmetric.GMetric
-import info.ganglia.gmetric4j.gmetric.GMetric.UDPAddressingMode
-
-import org.apache.spark.SecurityManager
-import org.apache.spark.metrics.MetricsSystem
-
-class GangliaSink(val property: Properties, val registry: MetricRegistry,
-    securityMgr: SecurityManager) extends Sink {
-  val GANGLIA_KEY_PERIOD = "period"
-  val GANGLIA_DEFAULT_PERIOD = 10
-
-  val GANGLIA_KEY_UNIT = "unit"
-  val GANGLIA_DEFAULT_UNIT: TimeUnit = TimeUnit.SECONDS
-
-  val GANGLIA_KEY_MODE = "mode"
-  val GANGLIA_DEFAULT_MODE: UDPAddressingMode = GMetric.UDPAddressingMode.MULTICAST
-
-  // TTL for multicast messages. If listeners are X hops away in network, must be at least X.
-  val GANGLIA_KEY_TTL = "ttl"
-  val GANGLIA_DEFAULT_TTL = 1
-
-  val GANGLIA_KEY_HOST = "host"
-  val GANGLIA_KEY_PORT = "port"
-
-  def propertyToOption(prop: String): Option[String] = Option(property.getProperty(prop))
-
-  if (!propertyToOption(GANGLIA_KEY_HOST).isDefined) {
-    throw new Exception("Ganglia sink requires 'host' property.")
-  }
-
-  if (!propertyToOption(GANGLIA_KEY_PORT).isDefined) {
-    throw new Exception("Ganglia sink requires 'port' property.")
-  }
-
-  val host = propertyToOption(GANGLIA_KEY_HOST).get
-  val port = propertyToOption(GANGLIA_KEY_PORT).get.toInt
-  val ttl = propertyToOption(GANGLIA_KEY_TTL).map(_.toInt).getOrElse(GANGLIA_DEFAULT_TTL)
-  val mode: UDPAddressingMode = propertyToOption(GANGLIA_KEY_MODE)
-    .map(u => GMetric.UDPAddressingMode.valueOf(u.toUpperCase)).getOrElse(GANGLIA_DEFAULT_MODE)
-  val pollPeriod = propertyToOption(GANGLIA_KEY_PERIOD).map(_.toInt)
-    .getOrElse(GANGLIA_DEFAULT_PERIOD)
-  val pollUnit: TimeUnit = propertyToOption(GANGLIA_KEY_UNIT)
-    .map(u => TimeUnit.valueOf(u.toUpperCase))
-    .getOrElse(GANGLIA_DEFAULT_UNIT)
-
-  MetricsSystem.checkMinimalPollingPeriod(pollUnit, pollPeriod)
-
-  val ganglia = new GMetric(host, port, mode, ttl)
-  val reporter: GangliaReporter = GangliaReporter.forRegistry(registry)
-      .convertDurationsTo(TimeUnit.MILLISECONDS)
-      .convertRatesTo(TimeUnit.SECONDS)
-      .build(ganglia)
-
-  override def start() {
-    reporter.start(pollPeriod, pollUnit)
-  }
-
-  override def stop() {
-    reporter.stop()
-  }
-
-  override def report() {
-    reporter.report()
-  }
-}
-