k8s 集群搭建 kubernetes v1.5

基于yum 安装 可以参考上一篇文章yum源配置

节点：

master： 10.10.1.104

node1: 10.10.1.105

node2: 10.10.1.106

一 初始化 所有节点操作

cat /etc/hosts

10.10.1.104 master

10.10.1.105 node1

10.10.1.106 node2

61.91.161.217 google.com

61.91.161.217 gcr.io

61.91.161.217 www.gcr.io

61.91.161.217 console.cloud.google.com

61.91.161.217 storage.googleapis.com

vi /etc/selinux/config

SELINUX=permissive

setenforce 0

systemctl stop firewalld

systemctl disable firewalld

二 安装kubernetes

yum -y install kubernetes etcd flannel 所有节点

配置下docker

cat /usr/lib/systemd/system/docker.service

[Unit]

Description=Docker Application Container Engine

Documentation=http://docs.docker.com

After=network.target docker-containerd.service

Wants=docker-storage-setup.service

Requires=docker-containerd.service rhel-push-plugin.socket

[Service]

Type=notify

EnvironmentFile=-/etc/sysconfig/docker

EnvironmentFile=-/etc/sysconfig/docker-storage

EnvironmentFile=-/etc/sysconfig/docker-network

Environment=GOTRACEBACK=crash

ExecStart=/usr/bin/dockerd-current \

–add-runtime oci=/usr/libexec/docker/docker-runc-current \

–log-driver=syslog \

–default-runtime=oci \

–registry-mirror=https://8l5bep5r.mirror.aliyuncs.com \

–authorization-plugin=rhel-push-plugin \

–containerd /run/containerd.sock \

–exec-opt native.cgroupdriver=systemd \

–userland-proxy-path=/usr/libexec/docker/docker-proxy-current \

ExecReload=/bin/kill -s HUP $MAINPID

LimitNOFILE=1048576

LimitNPROC=1048576

LimitCORE=infinity

TimeoutStartSec=0

Restart=on-abnormal

[Install]

WantedBy=multi-user.target

vi /etc/sysconfig/docker

OPTIONS=’–selinux-enabled –log-driver=journald –graph=/data/env/docker –insecure-registry 私有仓库地址

mkdir -p /data/env/docker

systemctl enable docker && systemctl restart docker

systemctl status docker

三 配置kubernetes

所有节点配置

vi /etc/kubernetes/config

KUBE_ETCD_SERVERS=”–etcd-servers=http://10.10.1.104:2379”

KUBE_LOGTOSTDERR=”–logtostderr=true”

KUBE_LOG_DIR=”–log-dir=/data/logs/kubernetes”

KUBE_LOG_LEVEL=”–v=1”

KUBE_ALLOW_PRIV=”–allow-privileged=false”

KUBE_MASTER=”–master=http://10.10.1.104:8080”

master 配置：

vi /etc/etcd/etcd.conf

[member]

ETCD_NAME=default

ETCD_DATA_DIR=”/var/lib/etcd/default.etcd”

ETCD_LISTEN_CLIENT_URLS=”http://0.0.0.0:2379”

[cluster]

ETCD_ADVERTISE_CLIENT_URLS=”http://0.0.0.0:2379”

vi /etc/kubernetes/apiserver

KUBE_API_ADDRESS=”
4000
–address=0.0.0.0”

KUBE_ETCD_SERVERS=”–etcd-servers=http://10.10.1.104:2379”

KUBE_SERVICE_ADDRESSES=”–service-cluster-ip-range=10.254.0.0/16”

KUBE_ADMISSION_CONTROL=”–admission-control=NamespaceLifecycle,NamespaceExists,LimitRanger,SecurityContextDeny,ServiceAccount,ResourceQuota”

KUBE_API_ARGS=”“

systemctl start etcd

etcdctl mkdir /kube-centos/network

etcdctl mk /kube-centos/network/config “{ \”Network\”: \”172.20.0.0/16\”, \”SubnetLen\”: 24, \”Backend\”: { \”Type\”: \”vxlan\” } }”

vi /etc/sysconfig/flanneld

FLANNEL_ETCD_ENDPOINTS=”http://10.10.1.104:2379”

FLANNEL_ETCD_PREFIX=”/kube-centos/network”

systemctl restart etcd kube-apiserver kube-controller-manager kube-scheduler   flanneld
systemctl enable etcd kube-apiserver kube-controller-manager kube-scheduler   flanneld

node 节点配置

vi /etc/kubernetes/kubelet

KUBELET_ADDRESS=”–address=0.0.0.0”

KUBELET_HOSTNAME=”–hostname-override=node1”

KUBELET_API_SERVER=”–api-servers=http://10.10.1.104:8080”

KUBELET_ARGS=”“

vi /etc/sysconfig/flanneld

FLANNEL_ETCD_ENDPOINTS=”http://10.10.1.104:2379”

FLANNEL_ETCD_PREFIX=”/kube-centos/network”

systemctl restart kube-proxy kubelet flanneld docker
systemctl enable kube-proxy kubelet flanneld docker

ps -ef | grep kube

master 操作

kubectl cluster-info

kubectl get nodes

NAME STATUS AGE

node1 Ready 45d

node2 Ready 45d

ok