systemctl stop firewalld
systemctl disable firewalld
yum -y install ntp
systemctl start ntpd
systemctl enable ntpd
yum update -y
安裝etcd kubernetes
yum -y install etcd kubernetes flannel
配置etcd
配置k8s api
[root@kubernetes-master ~]# egrep -v "^#|^$" /etc/kubernetes/apiserver
kube_api_address="--insecure-bind-address=0.0.0.0"
kube_etcd_servers="--etcd-servers="
kube_service_addresses="--service-cluster-ip-range=10.254.0.0/16"
kube_admission_control="--admission-control=namespacelifecycle,namespaceexists,limitranger,resourcequota"
kube_api_args=""
配置flannel網路
[root@kubernetes-master ~]# egrep -v "^#|^$" /etc/sysconfig/flanneld
flannel_etcd_endpoints=""
flannel_etcd_prefix="/atomic.io/network"
啟動etcd k8s服務
for services in etcd kube-apiserver kube-controller-manager kube-scheduler flanneld; do
systemctl restart $services
systemctl enable $services
systemctl status $services
done
定義flannel network
[root@kubernetes-master ~]# etcdctl mk /atomic.io/network/config ''
[root@localhost data]# etcdctl ls /atomic.io/network/subnets
/atomic.io/network/subnets/172.17.35.0-24
/atomic.io/network/subnets/172.17.42.0-24
/atomic.io/network/subnets/172.17.67.0-24
[root@localhost data]# etcdctl get /atomic.io/network/subnets/172.17.35.0-24
可以看到164 上面的網段為172.17.35.0/24
每個機器上執行
[root@192-168-0-154 ~]# rm -y /var/run/docker.pid
[root@192-168-0-154 ~]# source /run/flannel/subnet.env
[root@192-168-0-154 ~]# ifconfig docker0 $
然後重啟 docker
systemctl restart docker
這樣容器之間網路就打通了
yum -y install flannel kubernetes
配置/etc/sysconfig/flanneld
[root@kubernetes-node2 ~]# egrep -v "^#|^$" /etc/sysconfig/flanneld
flannel_etcd_endpoints=""
flannel_etcd_prefix="/atomic.io/network"
flannel_options="" #這裡可以指定哪個網絡卡-iface=ens192
配置k8s /etc/kubernetes/config
[root@kubernetes-node2 ~]# egrep -v "^#|^$" /etc/kubernetes/config
kube_logtostderr="--logtostderr=true"
kube_log_level="--v=0"
kube_allow_priv="--allow-privileged=false"
kube_master="--master="
配置kubelet服務 /etc/kubernetes/kubelet
[root@kubernetes-node2 ~]# egrep -v "^#|^$" /etc/kubernetes/kubelet
kubelet_address="--address=0.0.0.0"
kubelet_hostname="--hostname-override=10.64.8.70" #這個是節點自己的ip
啟動服務
for services in kube-proxy kubelet docker flanneld; do
systemctl restart $services
systemctl enable $services
systemctl status $services
done
查詢相關節點
[root@kubernetes-master ~]# kubectl get nodes
name status age
10.64.8.69 ready 5d
10.64.8.70 ready 5d
10.64.8.72 ready 5d
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