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Uninstall docker-se (we installed earlier)

Follow https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux_atomic_host/7/html-single/getting_started_with_kubernetes/

subscription-manager repos --enable=rhel-7-server-optional-rpms
sudo yum remove docker-ce
sudo yum remove docker-ce-selinux
yum install docker kubernetes-client kubernetes-node etcd
docker ps
systemctl disable firewalld
systemctl stop firewalld
yum install docker-distribution
systemctl start docker-distribution
systemctl enable docker-distribution
systemctl is-active docker-distribution
docker images
systemctl start docker
docker ps
docker images
docker pull registry.access.redhat.com/rhel7/kubernetes-apiserver
docker pull registry.access.redhat.com/rhel7/kubernetes-controller-mgr
docker pull registry.access.redhat.com/rhel7/kubernetes-scheduler
mkdir /etc/kubernetes/manifests
vi /etc/kubernetes/manifests/apiserver-pod.json
vi /etc/kubernetes/manifests/controller-mgr-pod.json
vi /etc/kubernetes/manifests/scheduler-pod.json
vi /etc/kubernetes/kubelet 
vi kubestart.sh
chmod 777 kubestart.sh

[root@obrien-mbp opt]# ./kubestart.sh 

[root@obrien-mbp opt]]# ss -tulnp | grep -E "(kube)|(etcd)"

[root@obrien-mbp opt]# curl -s -L http://localhost:2379/version
{"etcdserver":"3.1.7","etcdcluster":"3.1.0"}# ./kubestart.sh [root@obrien-mbp opt]# ss -tulnp | grep -E "(kube)|(etcd)"[root@obrien-mbp opt]# curl -s -L http://localhost:2379/version
{"etcdserver":"3.1.7","etcdcluster":"3.1.0"}[root@obrien-mbp opt]#