1：修改IP地址、主机名和host解析
10.0.0.11 k8s-master 10.0.0.12 k8s-node-1 10.0.0.13 k8s-node-2
2：所有节点安装docker-1.12.6-68
yum localinstall docker-common-1.12.6-71.git3e8e77d.el7.centos.x86_64.rpm -y yum localinstall docker-client-1.12.6-71.git3e8e77d.el7.centos.x86_64.rpm -y yum localinstall docker-1.12.6-71.git3e8e77d.el7.centos.x86_64.rpm -y
3：master节点安装etcd
yum install etcd -y vim /etc/etcd/etcd.conf 6行：ETCD_LISTEN_CLIENT_URLS="http://0.0.0.0:2379" 21行：ETCD_ADVERTISE_CLIENT_URLS="http://10.0.0.11:2379" systemctl start etcd.service systemctl enable etcd.service etcdctl set testdir/testkey0 0 etcdctl get testdir/testkey0 etcdctl -C http://10.0.0.11:2379 cluster-health
4：master节点安装kubernetes
yum install kubernetes-master.x86_64 -y vim /etc/kubernetes/apiserver 8行: KUBE_API_ADDRESS="--insecure-bind-address=0.0.0.0" 11行：KUBE_API_PORT="--port=8080" 17行：KUBE_ETCD_SERVERS="--etcd-servers=http://10.0.0.11:2379" 23行：KUBE_ADMISSION_CONTROL="--admission-control=NamespaceLifecycle,NamespaceExists,LimitRanger,SecurityContextDeny,ResourceQuota" vim /etc/kubernetes/config 22行：KUBE_MASTER="--master=http://10.0.0.11:8080" systemctl enable kube-apiserver.service systemctl restart kube-apiserver.service systemctl enable kube-controller-manager.service systemctl restart kube-controller-manager.service systemctl enable kube-scheduler.service systemctl restart kube-scheduler.service 5：node节点安装kubernetes yum install kubernetes-node.x86_64 -y vim /etc/kubernetes/config 22行：KUBE_MASTER="--master=http://10.0.0.11:8080" vim /etc/kubernetes/kubelet 5行：KUBELET_ADDRESS="--address=0.0.0.0" 8行：KUBELET_PORT="--port=10250" 11行：KUBELET_HOSTNAME="--hostname-override=10.0.0.12" 14行：KUBELET_API_SERVER="--api-servers=http://10.0.0.11:8080" systemctl enable kubelet.service systemctl start kubelet.service systemctl enable kube-proxy.service systemctl start kube-proxy.service
6：所有节点配置flannel网络
yum install flannel -y
sed -i 's#http://127.0.0.1:2379#http://10.0.0.11:2379#g' /etc/sysconfig/flanneld
etcdctl mk /atomic.io/network/config '{ "Network": "172.16.0.0/16" }'
master节点：
systemctl enable flanneld.service
systemctl start flanneld.service
service docker restart
systemctl restart kube-apiserver.service
systemctl restart kube-controller-manager.service
systemctl restart kube-scheduler.service
node节点：
systemctl enable flanneld.service
systemctl start flanneld.service
service docker restart
systemctl restart kubelet.service
systemctl restart kube-proxy.service
7：配置master为镜像仓库
#master节点 vim /etc/sysconfig/docker OPTIONS='--selinux-enabled --log-driver=journald --signature-verification=false --registry-mirror=https://registry.docker-cn.com --insecure-registry=10.0.0.11:5000' systemctl restart docker docker run -d -p 5000:5000 --restart=always --name registry -v /opt/myregistry:/var/lib/registry registry #node节点 vim /etc/sysconfig/docker OPTIONS='--selinux-enabled --log-driver=journald --signature-verification=false --insecure-registry=10.0.0.11:5000' systemctl restart docker
可以产看一些参数
[root@oldboy ~]# kubectl get nodes NAME STATUS AGE 10.0.0.12 Ready 58m 10.0.0.13 Ready 58m 上述代表两个节点正常连接
8：开启一个nginx的pod
cat /kubernetes/k8s_nginx_pod.yaml
apiVersion: v1
kind: Pod
metadata:
name: nginx
labels:
app: web
spec:
containers:
- name: nginx
image: 10.0.0.11:5000/nginx:1.13
ports:
- containerPort: 80
kubectl create -f /kubernetes/k8s_nginx_pod.yaml
docker load -i pod-infrastructure-latest.tar.gz
docker tag docker.io/tianyebj/pod-infrastructure:latest 10.0.0.11:5000/pod-infrastructure:latest
docker push 10.0.0.11:5000/pod-infrastructure:latest
在两个节点上：
vim /etc/kubernetes/kubelet
KUBELET_POD_INFRA_CONTAINER="--pod-infra-container-image=10.0.0.11:5000/pod-infrastructure:latest"
systemctl restart kubelet.service
kubectl get pods
NAME READY STATUS RESTARTS AGE
nginx 1/1 Running 0 24m
如果READY出现0/1需要结合kubectl describe pod nginx命令去查看问题