Updated Dockerfile for CentOS and generate SSH host keys

Author: grkvlt

docker/src/main/resources/brooklyn/entity/container/docker/SshdDockerfile

@@ -38,6 +38,14 @@ RUN type apt-get ; \
   mkdir /var/run/sshd ; \
   chmod 600 /var/run/sshd ;
 
+# create host keys if absent
+RUN if [ -f "/etc/ssh/ssh_host_dsa_key" -a -f "/etc/ssh/ssh_host_rsa_key" ] ; then \
+    echo "SSH host private keys already exists" ; \
+  else \
+    ssh-keygen -f /etc/ssh/ssh_host_rsa_key -N '' -t rsa ; \
+    ssh-keygen -f /etc/ssh/ssh_host_dsa_key -N '' -t dsa ; \
+  fi
+
 # configure sshd to allow login
 RUN sed -i.bk 's/PermitRootLogin.*$/PermitRootLogin yes/g' /etc/ssh/sshd_config ; \
   echo 'PasswordAuthentication yes' >> /etc/ssh/sshd_config

docker/src/main/resources/brooklyn/entity/container/docker/centos/Dockerfile

@@ -14,25 +14,7 @@
 #  See the License for the specific language governing permissions and
 #  limitations under the License.
 #
-# sshd
-#
-# VERSION 0.0.2
-
-FROM centos
-MAINTAINER Cloudsoft "brooklyn@cloudsoftcorp.com"
-
-# install packages
-RUN yum -y groupinstall 'Development Tools'
-RUN yum -y install sudo openssh-server openssh-clients openssl-devel
-
-# setup root account
-RUN ssh-keygen -q -N "" -t dsa -f /etc/ssh/ssh_host_dsa_key && ssh-keygen -q -N "" -t rsa -f /etc/ssh/ssh_host_rsa_key && sed -i "s/#UsePrivilegeSeparation.*/UsePrivilegeSeparation no/g" /etc/ssh/sshd_config && sed -i "s/UsePAM.*/UsePAM no/g" /etc/ssh/sshd_config
-RUN echo 'root:${entity.password}' | chpasswd
-
-# install sshd
-RUN chkconfig sshd on
-RUN service sshd start
-
-EXPOSE 22
+# VERSION 0.0.3
 
-CMD [ "/usr/sbin/sshd", "-D" ]
+FROM centos:6.6
+MAINTAINER Cloudsoft "brooklyn@cloudsoftcorp.com"