一、环境
centos7,
主机:
master: 主机名k8s-master， ip: 192.168.1.130
node1: 主机名k8s-node-1, ip:192.168.1.132
master和node的/etc/hosts都是如下配置
cat /etc/hosts
192.168.1.130 k8s-master
192.168.1.130 etcd
192.168.1.130 registry
192.168.1.132 k8s-node-1
192.168.1.133 k8s-node-2
master执行
# systemctl stop firewalld # systemctl disable firewalld
# setenforce 0
1.使用yum安装etcd和kubernetes-master
# yum -y install etcd kubernetes-master
2..编辑/etc/etcd/etcd.conf文件
ETCD_NAME=default
ETCD_DATA_DIR="/var/lib/etcd/default.etcd"
ETCD_LISTEN_CLIENT_URLS="
ETCD_ADVERTISE_CLIENT_URLS="
3.编辑/etc/kubernetes/apiserver文件
KUBE_API_ADDRESS="--insecure-bind-address=0.0.0.0"
KUBE_API_PORT="--port=8080"
KUBELET_PORT="--kubelet-port=10250"
KUBE_ETCD_SERVERS="--etcd-servers=
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=""
4.启动etcd、kube-apiserver、kube-controller-manager、kube-scheduler等服务，并设置开机启动
# for SERVICES in etcd kube-apiserver kube-controller-manager kube-scheduler; do systemctl restart $SERVICES;systemctl enable $SERVICES;systemctl status $SERVICES ; done
5.在etcd中定义flannel网络
# etcdctl mk /atomic.io/network/config '{"Network":"172.17.0.0/16"}'
安装配置Kubernetes Node
1.使用yum安装flannel和kubernetes-node
# yum -y install flannel kubernetes-node
2.为flannel网络指定etcd服务，修改/etc/sysconfig/flanneld文件
FLANNEL_ETCD="
3.修改/etc/kubernetes/config文件KUBE_LOGTOSTDERR="--logtostderr=true" KUBE_LOG_LEVEL="--v=0" KUBE_ALLOW_PRIV="--allow-privileged=false" KUBE_MASTER="--master= 4.按照如下内容修改对应node的配置文件/etc/kubernetes/kubelet KUBELET_ADDRESS="--address=0.0.0.0" KUBELET_PORT="--port=10250" KUBELET_HOSTNAME="--hostname-override=192.168.1.132" #修改成对应Node的IP KUBELET_API_SERVER="--api-servers=http://192.168.30.20:8080" #指定Master节点的API ServerKUBELET_POD_INFRA_CONTAINER="--pod-infra-container-p_w_picpath=registry.access.redhat.com/rhel7/pod-infrastructure:latest" KUBELET_ARGS=""
5.在所有Node节点上启动kube-proxy,kubelet,docker,flanneld等服务，并设置开机启动。
# for SERVICES in kube-proxy kubelet docker flanneld;do systemctl restart $SERVICES;systemctl enable $SERVICES;systemctl status $SERVICES; done
验证集群是否安装成功
在master上执行如下命令
# kubectl get node
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