Allow use of default CMD in Docker slave container

[mamciek]

When launching Docker slave the defult CMD in container is always overriden:

src/main/java/com/nirima/jenkins/plugins/docker/DockerTemplate.java:

containerConfig.setCmd(new String[]{"/usr/sbin/sshd", "-D"});

Please allow to run default CMD as defined in Dockerfile of slave container or at least add config option where it would be possible to provide a command that should be run

[sduchesneau]

Hi, I added a simple parameter "Docker Command" on this repo here: https://github.com/sduchesneau/docker-plugin

It does not use the Default CMD, but it allows me to set a default command ( I use /sbin/init on tianon/ubuntu-init )

It works for me. (for convenience, I put the compiled .jar here -> http://stepd.ca/docker-plugin.jar)

To build it on ubuntu 12.04, with maven:

sudo apt-get install openjdk-6-jdk maven2
git clone git@github.com:sduchesneau/docker-plugin.git
cd docker-plugin
mvn install

(then install the docker-plugin.hpi file to jenkins from advanced tab in "Manage Plugins" and restart jenkins)

Please let me know if it works for you. (I've just sent a pull request.)

[magnayn]

Merged - thx