add deps, add kubelet entry script

kubernetes/kubelet/Dockerfile

@@ -5,10 +5,12 @@ MAINTAINER The CentOS Project <cloud-ops@centos.org>
 # properly in a container, so we skip installing it
 
 # Containerized kubelet requires nsenter
-RUN yum install -y util-linux && yum clean all
+RUN yum install -y util-linux ethtool && yum clean all
 
 # cAdvisor wants /etc/machine-id
 # containerized kubelet needs /:/rootfs and /var/lib/kubelet to mount volumes
 LABEL RUN='/usr/bin/docker run -d --privileged --net=host ${OPT1} -v /sys:/sys:ro -v /var/run/docker.sock:/var/run/docker.sock -v /var/lib/docker:/var/lib/docker -v /etc/machine-id:/etc/machine-id:ro -v /var/lib/kubelet:/var/lib/kubelet -v /:/rootfs --name ${NAME} ${IMAGE} ${OPT3}'
 
-ENTRYPOINT ["/usr/bin/kubelet"]
+COPY launch.sh /usr/bin/kubelet-docker.sh
+
+ENTRYPOINT ["/usr/bin/kubelet-docker.sh"]

kubernetes/kubelet/launch.sh

@@ -0,0 +1,8 @@
+#!/bin/bash
+
+source /etc/kubernetes/kubelet
+source /etc/kubernetes/config
+
+ARGS=$(echo "$@ $KUBE_LOGTOSTDERR $KUBE_LOG_LEVEL $KUBELET_API_SERVER $KUBELET_ADDRESS $KUBELET_PORT $KUBELET_HOSTNAME $KUBE_ALLOW_PRIV $KUBELET_ARGS" | xargs -n1 | sort -u -t = -k 1,1 | xargs)
+
+exec /usr/bin/kubelet $ARGS --containerized

kubernetes/node/Dockerfile

@@ -2,4 +2,4 @@ FROM centos:centos7
 MAINTAINER The CentOS Project <cloud-ops@centos.org>
 
 RUN yum -y update && yum clean all
-RUN yum install -y kubernetes-node && yum clean all
+RUN yum install -y kubernetes-node findutils && yum clean all

kubernetes/proxy/Dockerfile

@@ -1,7 +1,7 @@
 FROM centos/kubernetes-node
 MAINTAINER The CentOS Project <cloud-ops@centos.org>
 
-RUN yum install -y iptables && yum clean all
+RUN yum install -y iptables conntrack-tools && yum clean all
 
 LABEL RUN='/usr/bin/docker run -d --net=host --privileged ${OPT1} --name ${NAME} ${IMAGE} ${OPT3}'