Added the ubuntu slave, because Bo wants to use Ubuntu slave!

containers/ubuntu-slave/Dockerfile

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+FROM ubuntu:14.04
+
+
+# Exposes port 22 for incoming SSH connections.
+EXPOSE 22
+
+## The following line is not needed on centos. It is needed on ubuntu.
+RUN mkdir /var/run/sshd
+
+
+RUN apt-get update && apt-get -y install openssh-server openjdk-7-jdk git wget tar build-essential golang 
+
+
+## Setup SSH host keys, which are required for sshd to start properly.
+# RUN /usr/bin/ssh-keygen -q -t rsa1 -f /etc/ssh/ssh_host_key     -C '' -N '' >&/dev/null
+# RUN /usr/bin/ssh-keygen -q -t rsa  -f /etc/ssh/ssh_host_rsa_key -C '' -N '' >&/dev/null
+# RUN /usr/bin/ssh-keygen -q -t dsa  -f /etc/ssh/ssh_host_dsa_key -C '' -N '' >&/dev/null
+# RUN /usr/bin/ssh-keygen -q -t ecdsa -f /etc/ssh/ssh_host_ecdsa_key -C '' -N '' >&/dev/null
+# RUN /usr/bin/ssh-keygen -q -t ed25519 -f /etc/ssh/ssh_host_ed25519_key -C '' -N '' >&/dev/null
+
+# This is kinf of a hack. For DayofDocker Bosse wants to run docker commands.
+# The builduser logs in through ssh (not as root) so builduser needs to be a member of the group docker 
+# The docker group on the Zetta host has the id 999. 
+# When this user is created as following,  it will already be a member of docker group.
+# I use 999 for a reason. If you decide to mount the groups file from the host, that will also have the same group id.
+
+RUN groupadd -g 999 docker
+RUN useradd -G 999 -m builduser \
+  && echo "builduser:dayofdocker" | /usr/sbin/chpasswd
+
+COPY dotgitconfig /home/builduser/.gitconfig
+
+
+# Allow root to login
+# RUN sed -i "s/PermitRootLogin without-password/PermitRootLogin yes/g"  /etc/ssh/sshd_config 
+
+############################################################################
+# build it with: 
+# sudo docker build --rm -t dod/ubuntu-slave .
+

containers/ubuntu-slave/dotgitconfig

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+[user]
+	name = builduser
+	email = [email protected]
+# Note: Using the "cache" helper is not feasible as it fogets the credentials after few minutes.
+#       The "store" helper keeps the credentials in ~/.git-credentials forever - in plain text.
+[credential]
+	helper = store
+
+