Adding the MLPMNist example using DL4J running on valohai's infrastru…

…cture to run it

examples/cloud-devops-infra/valohai/MLPMnist/.dockerignore

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+.gradle
+.idea
+*.iml
+bin
+logs
+out
+build
+target
+local.properties

examples/cloud-devops-infra/valohai/MLPMnist/.gitignore

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+.gradle
+.idea
+*.iml
+bin
+build
+target
+local.properties
+logs/

examples/cloud-devops-infra/valohai/MLPMnist/Dockerfile

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+FROM findepi/graalvm:19.1.1-all
+
+ARG WORKDIR
+ENV WORKDIR=${WORKDIR}
+
+WORKDIR ${WORKDIR}
+
+COPY .deeplearning4j /root/.deeplearning4j
+COPY MLPMnist-1.0.0.jar ${WORKDIR}/MLPMnist-1.0.0.jar
+COPY runMLPMnist.sh ${WORKDIR}/runMLPMnist.sh
+
+ENV JAVA_HOME=/graalvm

examples/cloud-devops-infra/valohai/MLPMnist/README.md

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+# MLPMNist Single Layer
+
+Open built-in Terminal from the Android Studio or IntelliJ IDEA. 
+If you prefer, use the terminal app on your computer.
+In the terminal window, `cd` to the project root directory `MLPMnist` if not already in.
+(_you can use IDE's run-configuration green run button, if you like._)
+
+### Build app
+
+```
+mvn package -Djavacpp.platform=linux-x86_64
+or
+mvn package -Djavacpp.platform=macos-x86_64
+or
+mvn package -Djavacpp.platform=windows-x86_64
+```
+
+### Build run
+
+```
+./runMLPMnist.sh
+```
+
+
+### Run in docker container
+
+```
+./runDockerContainer.sh
+```
+
+At the prompt in the container:
+
+```
+./runMLPMnist.sh
+```

examples/cloud-devops-infra/valohai/MLPMnist/build.gradle

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+apply plugin: 'kotlin'
+apply plugin: 'application'
+apply plugin: 'maven'
+
+group = 'org.deeplearning4j.examples'
+
+sourceCompatibility = 1.8
+
+mainClassName = 'org.deeplearning4j.examples.feedforward.mnist.MLPMnistSingleLayerExample'
+
+buildscript {
+    ext {
+        dl4j_version = "1.0.0-beta4"
+        kotlin_version = "1.3.30"
+    }
+    repositories {
+        maven { url "https://oss.sonatype.org/content/repositories/snapshots" }
+        mavenCentral()
+    }
+    dependencies {
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
+    }
+}
+
+repositories {
+    maven { url "https://oss.sonatype.org/content/repositories/snapshots" }
+    mavenCentral()
+}
+
+dependencies {
+    implementation "org.jetbrains.kotlin:kotlin-stdlib:${kotlin_version}"
+    implementation "org.deeplearning4j:deeplearning4j-core:${dl4j_version}"
+    implementation "org.nd4j:nd4j-native-platform:${dl4j_version}"
+    implementation "org.slf4j:slf4j-simple:1.7.25"
+    implementation "org.slf4j:slf4j-api:1.7.25"
+}
+
+compileKotlin {
+    kotlinOptions.jvmTarget = '1.8'
+}
+
+compileTestKotlin {
+    kotlinOptions.jvmTarget = '1.8'
+}
+
+sourceSets {
+    main {
+        /*
+        Kotlin examples do not use java sources, so let's exclude them all
+         */
+        java {
+            srcDir "src/main/java"
+            exclude "**"
+        }
+    }
+}
+
+task MLPMnistSingleLayerExample(type: JavaExec) {
+    classpath = sourceSets.main.runtimeClasspath
+    main = "org.deeplearning4j.feedforward.mnist.MLPMnistSingleLayerExample"
+}
+
+task MLPMnistTwoLayerExample(type: JavaExec) {
+    classpath = sourceSets.main.runtimeClasspath
+    main = "org.deeplearning4j.feedforward.mnist.MLPMnistTwoLayerExample"
+}
+
+/*******************************************************************************
+ * Copyright (c) 2015-2019 Skymind, Inc.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Apache License, Version 2.0 which is available at
+ * https://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.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ ******************************************************************************/
+
+/*
+More Java examples to be converted to Kotlin
+ */

examples/cloud-devops-infra/valohai/MLPMnist/buildDockerImage.sh

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+#!/bin/bash
+
+set -e
+set -u
+set -o pipefail
+
+IMAGE_NAME=${IMAGE_NAME:-dl4j-mnist-single-layer}
+IMAGE_VERSION=${IMAGE_VERSION:-$(cat version.txt)}
+DOCKER_FULL_TAG_NAME="${DOCKER_USER_NAME}/${IMAGE_NAME}"
+
+cp -rf $HOME/.deeplearning4j .
+cp target/MLPMnist-1.0.0-beta4-bin.jar MLPMnist-1.0.0.jar
+
+time docker build                                            \
+                 --build-arg WORKDIR=/workspace              \
+                 -t ${DOCKER_FULL_TAG_NAME}:${IMAGE_VERSION} \
+                 .
+
+rm -rf .deeplearning4j
+rm -f MLPMnist-1.0.0.jar

examples/cloud-devops-infra/valohai/MLPMnist/gradle/wrapper/gradle-wrapper.properties

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+#Fri Aug 16 19:25:46 BST 2019
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.4.1-all.zip

examples/cloud-devops-infra/valohai/MLPMnist/gradlew

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+#!/usr/bin/env sh
+
+#
+# Copyright 2015 the original author or authors.
+#
+# Licensed 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.
+#
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn () {
+    echo "$*"
+}
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+  NONSTOP* )
+    nonstop=true
+    ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+    JAVACMD=`cygpath --unix "$JAVACMD"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Escape application args
+save () {
+    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
+    echo " "
+}
+APP_ARGS=$(save "$@")
+
+# Collect all arguments for the java command, following the shell quoting and substitution rules
+eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+
+# by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong
+if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then
+  cd "$(dirname "$0")"
+fi
+
+exec "$JAVACMD" "$@"