centos7 安装k8s

一、 安装CENTOS7两台，一台做master，一台做node

Mast  :192.168.140.101
Node: 192.168.140.102

curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
yum makecache
yum -y update
yum -y install vim wget

　　

二、 MASKTER部署

1安装etcd  kubernetes

yum -y install etcd kubernetes

2配置etcd

Vim /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://localhost:2379"

3配置kubernetes

vim /etc/kubernetes/apiserver

KUBE_API_ADDRESS="--address=0.0.0.0"KUBE_API_PORT="--port=8080"
KUBELET_PORT="--kubelet_port=10250"
KUBE_ETCD_SERVERS="--etcd_servers=http://127.0.0.1:2379"
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=""

4配置服务自启动，启动服务：启动etcd, kube-apiserver, kube-controller-manager and kube-scheduler服务

for sername in etcd kube-apiserver kube-controller-manager kube-scheduler; do systemctl restart $sername ;systemctl enable $sername; systemctl status $sername; done

　　

5设置etcd网络

etcdctl -C //192.168.140.101:2379 set /atomic.io/network/config '{"Network":"10.1.0.0/16"}'

　

6 master设置完成，查询node的状态

kubectl get nodes 

　　

三、nodes安装

1 安装flannel kubernetes

yum -y install flannel kubernetes

2配置kubernetes连接到服务端IP

Vim /etc/kubernetes/config

KUBE_MASTER="--master=http://192.168.140.101:8080" 
KUBE_ETCD_SERVERS="--etcd_servers=http://192.168.140.101:2379"

3 配置kubernetes

KUBELET_ADDRESS="--address=0.0.0.0"
KUBELET_PORT="--port=10250"
# You may leave this blank to use the actual hostname
##KUBELET_HOSTNAME="--hostname-override=127.0.0.1"
KUBELET_API_SERVER="--api-servers=http://192.168.140.101:8080"
KUBELET_ARGS=""

　　

4 配置flannel网络

Vim /etc/sysconfig/flanneld

FLANNEL_ETCD_ENDPOINTS="http://192.168.140.101:2379"
FLANNEL_ETCD_PREFIX="/atomic.io/network"

　　

5 启动服务

for SERVICES in flanneld kube-proxy kubelet docker
do
systemctl restart $SERVICES
systemctl enable $SERVICES
systemctl status $SERVICES
Done