k8s安装和入门-第一章

1：修改IP地址、主机名和host解析

10.0.0.11 k8s-master
10.0.0.12 k8s-node-1
10.0.0.13 k8s-node-2

2：所有节点安装docker-1.12.6-68

yum localinstall docker-common-1.12.6-71.git3e8e77d.el7.centos.x86_64.rpm -y
yum localinstall docker-client-1.12.6-71.git3e8e77d.el7.centos.x86_64.rpm -y
yum localinstall docker-1.12.6-71.git3e8e77d.el7.centos.x86_64.rpm -y

3：master节点安装etcd

yum install etcd -y

vim /etc/etcd/etcd.conf
6行：ETCD_LISTEN_CLIENT_URLS=“http://0.0.0.0:2379”
21行：ETCD_ADVERTISE_CLIENT_URLS=“http://10.0.0.11:2379”

systemctl start etcd.service
systemctl enable etcd.service

etcdctl set testdir/testkey0 0
etcdctl get testdir/testkey0

etcdctl -C http://10.0.0.11:2379 cluster-health

4：master节点安装kubernetes

yum install kubernetes-master.x86_64 -y

vim /etc/kubernetes/apiserver
8行: KUBE_API_ADDRESS="–insecure-bind-address=0.0.0.0"
11行：KUBE_API_PORT="–port=8080"
17行：KUBE_ETCD_SERVERS="–etcd-servers=http://10.0.0.11:2379"
23行：KUBE_ADMISSION_CONTROL="–admission-control=NamespaceLifecycle,NamespaceExists,LimitRanger,SecurityContextDeny,ResourceQuota"

vim /etc/kubernetes/config
22行：KUBE_MASTER="–master=http://10.0.0.11:8080"

systemctl enable kube-apiserver.service
systemctl restart kube-apiserver.service
systemctl enable kube-controller-manager.service
systemctl restart kube-controller-manager.service
systemctl enable kube-scheduler.service
systemctl restart kube-scheduler.service

5：node节点安装kubernetes

yum install kubernetes-node.x86_64 -y

vim /etc/kubernetes/config
22行：KUBE_MASTER="–master=http://10.0.0.11:8080"

vim /etc/kubernetes/kubelet
5行：KUBELET_ADDRESS="–address=0.0.0.0"
8行：KUBELET_PORT="–port=10250"
11行：KUBELET_HOSTNAME="–hostname-override=10.0.0.12"
14行：KUBELET_API_SERVER="–api-servers=http://10.0.0.11:8080"

systemctl enable kubelet.service
systemctl start kubelet.service
systemctl enable kube-proxy.service
systemctl start kube-proxy.service

6：所有节点配置flannel网络

yum install flannel -y

sed -i ‘s#http://127.0.0.1:2379#http://10.0.0.11:2379#g’ /etc/sysconfig/flanneld

etcdctl mk /atomic.io/network/config ‘{ “Network”: “172.16.0.0/16” }’

master节点：
systemctl enable flanneld.service
systemctl start flanneld.service
service docker restart
systemctl restart kube-apiserver.service
systemctl restart kube-controller-manager.service
systemctl restart kube-scheduler.service

node节点：
systemctl enable flanneld.service
systemctl start flanneld.service
service docker restart
systemctl restart kubelet.service
systemctl restart kube-proxy.service

7：配置master为镜像仓库

#master节点
vim /etc/sysconfig/docker
OPTIONS=’–selinux-enabled --log-driver=journald --signature-verification=false --registry-mirror=https://registry.docker-cn.com --insecure-registry=10.0.0.11:5000’

systemctl restart docker

docker run -d -p 5000:5000 --restart=always --name registry -v /opt/myregistry:/var/lib/registry registry

#node节点
vim /etc/sysconfig/docker
OPTIONS=’–selinux-enabled --log-driver=journald --signature-verification=false --insecure-registry=10.0.0.11:5000’

systemctl restart docker