centos+k8s+docker部署

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=defaultETCD_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IPKUBELET_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