Centos7.2部署kubernetes

1. 环境：
   a. master：192.168.254.141
   b. node01：192.168.254.142
   c. node02：192.168.254.143
   d. 配置hosts
2. master节点安装：
   a. systemctl stop firewalld && systemctl disable firewalld
   b. yum install kubernetes-master etcd -y
3. node节点安装：
   a. systemctl stop firewalld && systemctl disable firewalld
   b. yum install kubernetes-node flannel docker -y
   c. systemctl enable docker && systemctl start docker
4. 配置etc节点：
   a. egrep -v “^#” /etc/etcd/etcd.conf
   ETCD_NAME=default
   ETCD_DATA_DIR=”/var/lib/etcd/default.etcd”
   ETCD_LISTEN_CLIENT_URLS=”http://0.0.0.0:2379"
   ETCD_ADVERTISE_CLIENT_URLS=”http://192.168.254.141:2379"
   b. 启动etcd

   i. systemctl start etcd && systemctl enable etcd
   

5. 配置master节点：
   a. egrep -v “^#” /etc/kubernetes/apiserver | grep -v “^$”
   KUBE_API_ADDRESS=”–insecure-bind-address=0.0.0.0”
   KUBE_ETCD_SERVERS=”–etcd-servers=http://192.168.254.141:2379"
   KUBE_SERVICE_ADDRESSES=”–service-cluster-ip-range=10.254.0.0/16”
   KUBE_ADMISSION_CONTROL=”–admission-control=NamespaceLifecycle,NamespaceExists,LimitRanger,SecurityContextDeny,ResourceQuota”
   KUBE_API_ARGS=””
   b. egrep -v “^#” /etc/kubernetes/controller-manager |grep -v “^$”
   KUBE_CONTROLLER_MANAGER_ARGS=”–node-monitor-grace-period=10s –pod-eviction-timeout=10s”
   c. egrep -v “^#” /etc/kubernetes/config | egrep -v “^$”
   KUBE_LOGTOSTDERR=”–logtostderr=true”
   KUBE_LOG_LEVEL=”–v=0”
   KUBE_ALLOW_PRIV=”–allow-privileged=false”
   KUBE_MASTER=”–master=http://192.168.254.141:8080"
   d. 启动服务：

   i. systemctl enable kube-apiserver kube-scheduler kube-controller-manager
   ii. systemctl start kube-apiserver kube-scheduler kube-controller-manager
   

6. 配置node节点
   a. egrep -v “^#” /etc/kubernetes/config | grep -v “^$”
   KUBE_LOGTOSTDERR=”–logtostderr=true”
   KUBE_LOG_LEVEL=”–v=0”
   KUBE_ALLOW_PRIV=”–allow-privileged=false”
   KUBE_MASTER=”–master=http://192.168.254.141:8080"
   b. egrep -v “^#” /etc/kubernetes/kubelet | grep -v “^$”
   KUBELET_ADDRESS=”–address=127.0.0.1”
   KUBELET_HOSTNAME=”–hostname-override=docker02”
   KUBELET_API_SERVER=”–api-servers=http://192.168.254.141:8080"
   KUBELET_POD_INFRA_CONTAINER=”–pod-infra-container-image=registry.access.redhat.com/rhel7/pod-infrastructure:latest”
   KUBELET_ARGS=”–pod-infra-container-image=kubernetes/pause”
   c. 启动服务：

   i. systemctl enable kubelet kube-proxy
   ii. systemctl start kubelet kube-proxy
   

7. 配置node节点flannel
   a. 初始化flannel的etcd配置(etc节点操作)：

   i. etcdctl -C 127.0.0.1:2379 set /coreos.com/network/config '{ "Network": "10.1.0.0/16" }'
   

   b. node节点上操作：

   i. egrep -v "^#" /etc/sysconfig/flanneld | grep -v "^$"
   

   FLANNEL_ETCD_ENDPOINTS=”http://192.168.254.141:2379"
   FLANNEL_ETCD_PREFIX=”/coreos.com/network”
   c. 启动服务：

   i. systemctl enable flanneld
   ii. systemctl restart flanneld docker
   

8. 测试：
   a. kubectl get nodes