targetDir in assembly not working

Description

When trying to set a custom targetDir in the assembly section like described int the docu, it’s getting ignored and /maven is used.

Info

• d-m-p version : 0.18.1
• Maven version (mvn -v) :

Apache Maven 3.3.9 (bb52d8502b132ec0a5a3f4c09453c07478323dc5; 2015-11-10T17:41:47+01:00)
Maven home: /usr/local/Cellar/maven/3.3.9/libexec
Java version: 1.8.0_65, vendor: Oracle Corporation
Java home: /Library/Java/JavaVirtualMachines/jdk1.8.0_65.jdk/Contents/Home/jre
Default locale: de_DE, platform encoding: UTF-8
OS name: "mac os x", version: "10.11.6", arch: "x86_64", family: "mac"

• Docker version : 1.12.3
• Sample project : [e-mail]:mbacodes/docker-maven-plugin-test.git

<images>
    <image>
        <name>test/hello-world:latest</name>
        <build>
            <dockerFileDir>hello-world</dockerFileDir>
            <assembly>
                <mode>dir</mode>
                <targetDir>/</targetDir>
                <descriptor>assembly.xml</descriptor>
            </assembly>
        </build>
    </image>
</images>

Setting <targetDir>/foo</targetDir> does not change anything. The resulting targetDir still is target/docker/test/hello-world/latest/build/maven

[Madanor]

@rhuss That looks good to me. Thank you.

[rhuss]

Just merged in to master. Happy to pickup still any feedback here.