Centos+k8s+docker deployment
I. Environment
Centos7
Host:
Master: hostname k8s-master, ip: 192.168.1.130
Node1: hostname k8s-node-1, ip:192.168.1.132
The / etc/hosts for both master and node are configured as follows
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 execution
# systemctl stop firewalld# systemctl disable firewalld
# setenforce 0
1. Install etcd and kubernetes-master using yum
# yum-y install etcd kubernetes-master
2.. Edit / etc/etcd/etcd.conf file
ETCD_NAME=defaultETCD_DATA_DIR= "/ var/lib/etcd/default.etcd" ETCD_LISTEN_CLIENT_URLS= "ETCD_ADVERTISE_CLIENT_URLS=" 3. Edit / etc/kubernetes/apiserver file 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. Start etcd, kube-apiserver, kube-controller-manager, kube-scheduler and other services, and set boot # for SERVICES in etcd kube-apiserver kube-controller-manager kube-scheduler; do systemctl restart $SERVICES;systemctl enable $SERVICES;systemctl status $SERVICES; done 5. Define the flannel network # etcdctl mk / atomic.io/network/config'{"Network": "172.17.0.0 Universe 16"}'in etcd to install and configure Kubernetes Node 1. Use yum to install flannel and kubernetes-node # yum-y install flannel kubernetes-node 2. Specify the etcd service for the flannel network and modify the / etc/sysconfig/flanneld file FLANNEL_ETCD= "3. Modify / etc/kubernetes/config file KUBE_LOGTOSTDERR= "--logtostderr=true" KUBE_LOG_LEVEL= "--vici0" KUBE_ALLOW_PRIV= "--allow-privileged=false" KUBE_MASTER= "--master=4. Modify the configuration file / etc/kubernetes/kubelet KUBELET_ADDRESS= "--address=0.0.0.0" KUBELET_PORT= "--port=10250" KUBELET_HOSTNAME= "--hostname-override=192.168.1.132" # of the corresponding node to the IPKUBELET_API_SERVER= of the corresponding Node "--api-servers= http://192.168.30.20:8080" # specify the API ServerKUBELET_POD_INFRA_CONTAINER= of the Master node-- pod-infra-container-p_ W_picpath=registry.access.redhat.com/rhel7/pod-infrastructure:latest "KUBELET_ARGS="
5. Start services such as kube-proxy,kubelet,docker,flanneld on all Node nodes and set up boot.
# for SERVICES in kube-proxy kubelet docker flanneld;do systemctl restart $SERVICES;systemctl enable $SERVICES;systemctl status $SERVICES; done
Verify that the cluster is installed successfully
Execute the following command on master
# kubectl get node
