maven assembly to zip a deployable artifact

assembly.xml

<?xml version="1.0" encoding="utf-8"?>
<assembly xmlns="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.3"
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.3 http://maven.apache.org/xsd/assembly-1.1.3.xsd">
    <id>release</id>
    <formats>
        <format>zip</format>
    </formats>
    <fileSets>
        <fileSet>
            <directory>target</directory>
            <includes>
                <include>${build.finalName}.jar</include>
            </includes>
            <outputDirectory>/</outputDirectory>
        </fileSet>
    </fileSets>
    <files>
        <file>
            <source>Procfile</source>
            <fileMode>0700</fileMode>
        </file>
        <file>
            <source>run.sh</source>
            <fileMode>0700</fileMode>
        </file>
    </files>
</assembly>