KUBERNETES 集群搭建
基础环境
系统环境# cat /etc/redhat-releaseCentOS Linux release 7.3.1611 (Core)
主机名设置centos-master 192.168.59.135centos-minion1 192.168.59.132centos-minion2 192.168.59.133
关闭Selinux 和 Firewalld 后重启服务器
# systemctl stop firewalld# systemctl disable firewalld# setenforce 0# sed -i ‘s/^SELINUX=.*/SELINUX=disableds/‘ /etc/selinux/config
Master 节点安装部署
#yum install etcd kubernetes -y安装的版本# rpm -qa | grep etcdetcd-3.2.7-1.el7.x86_64# rpm -qa | grep kuberneteskubernetes-client-1.5.2-0.7.git269f928.el7.x86_64kubernetes-1.5.2-0.7.git269f928.el7.x86_64kubernetes-master-1.5.2-0.7.git269f928.el7.x86_64kubernetes-node-1.5.2-0.7.git269f928.el7.x86_64
配置ETCD /Etc/Etcd/Etcd.Conf
# cat /etc/etcd/etcd.conf | grep -Ev "^#|^$"ETCD_NAME=centos-masterETCD_DATA_DIR="/var/lib/etcd/default.etcd"ETCD_LISTEN_PEER_URLS="http://0.0.0.0:2380"ETCD_LISTEN_CLIENT_URLS="http://0.0.0.0:2379"ETCD_INITIAL_ADVERTISE_PEER_URLS="http://192.168.59.135:2380"ETCD_INITIAL_CLUSTER="centos-master=http://192.168.59.135:2380,centos-minion2=http://192.168.59.133:2380,centos-minion1=http://192.168.59.132:2380"ETCD_INITIAL_CLUSTER_STATE="new"ETCD_INITIAL_CLUSTER_TOKEN="etcd-cluster"ETCD_ADVERTISE_CLIENT_URLS="http://192.168.59.135:2379"
配置Kubernetes API Server (/Etc/Kubernetes/Apiserver)
# cat /etc/kubernetes/apiserver | grep -Ev "^#|^$"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=http://127.0.0.1:2379"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=""
配置Kubernetes Config (/Etc/Kubernetes/Config)
# cat /etc/kubernetes/config | grep -Ev "^#|^$"KUBE_LOGTOSTDERR="--logtostderr=true"KUBE_LOG_LEVEL="--v=0"KUBE_ALLOW_PRIV="--allow-privileged=false"KUBE_MASTER="--master=http://centos-master:8080"
Minion 节点安装（Minion1和Minion2）
# yum install flannel etcd docker kubernetes -y
配置ETCD （/Etc/Etcd/Etcd.Conf）
# grep -Ev "^#|^$" /etc/etcd/etcd.conf ETCD_NAME=centos-minion2ETCD_DATA_DIR="/var/lib/etcd/default.etcd"ETCD_LISTEN_PEER_URLS="http://0.0.0.0:2380"ETCD_LISTEN_CLIENT_URLS="http://0.0.0.0:2379"ETCD_INITIAL_ADVERTISE_PEER_URLS="http://192.168.59.133:2380"ETCD_INITIAL_CLUSTER="centos-master=http://192.168.59.135:2380,centos-minion2=http://192.168.59.133:2380,centos-minion1=http://192.168.59.132:2380"ETCD_INITIAL_CLUSTER_STATE="new"ETCD_INITIAL_CLUSTER_TOKEN="etcd-cluster"ETCD_ADVERTISE_CLIENT_URLS="http://192.168.59.133:2379"# grep -Ev "^#|^$" /etc/etcd/etcd.conf ETCD_NAME=centos-minion1ETCD_DATA_DIR="/var/lib/etcd/default.etcd"ETCD_LISTEN_PEER_URLS="http://0.0.0.0:2380"ETCD_LISTEN_CLIENT_URLS="http://0.0.0.0:2379"ETCD_INITIAL_ADVERTISE_PEER_URLS="http://192.168.59.132:2380"ETCD_INITIAL_CLUSTER="centos-master=http://192.168.59.135:2380,centos-minion2=http://192.168.59.133:2380,centos-minion1=http://192.168.59.132:2380"ETCD_INITIAL_CLUSTER_STATE="new"ETCD_INITIAL_CLUSTER_TOKEN="etcd-cluster"ETCD_ADVERTISE_CLIENT_URLS="http://192.168.59.132:2379"
配置 Flannel (/Etc/Sysconfig/Flanneld)
# grep -Ev "^#|^$" /etc/sysconfig/flanneldFLANNEL_ETCD_ENDPOINTS="http://192.168.59.133:2379"FLANNEL_ETCD_PREFIX="/atomic.io/network"
配置 Kubelet (/Etc/Kubernetes/Kubelet)
# grep -Ev "^#|^$" /etc/kubernetes/kubelet KUBELET_ADDRESS="--address=0.0.0.0"KUBELET_PORT="--port=10250"KUBELET_HOSTNAME="--hostname-override=centos-minion2"KUBELET_API_SERVER="--api-servers=http://centos-master:8080"# 下面请填写你的registry地址，如果你能连接到任何网络，请自动过滤KUBELET_POD_INFRA_CONTAINER="--pod-infra-container-image=registry.access.redhat.com/rhel7/pod-infrastructure:latest"# 下面填写你的dns信息,例如# KUBELET_ARGS="--cluster-dns=192.168.51.198 --cluster-domain=atomic.io/network"KUBELET_ARGS=""
启动程序 On Master
for SERVICES in etcd kube-apiserver kube-controller-manager kube-scheduler; do systemctl restart $SERVICES systemctl enable $SERVICES systemctl status $SERVICES -ldone
etcd 网络配置# etcdctl mk /atomic.io/network/config ‘{"Network":"172.17.0.0/16"}‘启动程序 On Minion
for SERVICES in etcd kube-proxy kubelet docker flanneld; do systemctl restart $SERVICES systemctl enable $SERVICES systemctl status $SERVICES done
查看 Etcd 集群情况 （随便一台都可以）
# etcdctl member list10a23ff41e3abcb8: name=centos-minion1 peerURLs=http://192.168.59.132:2380 clientURLs=http://192.168.59.132:2379 isLeader=false168ea6ce7632b2e4: name=centos-minion2 peerURLs=http://192.168.59.133:2380 clientURLs=http://192.168.59.133:2379 isLeader=true587d83f824bf96c6: name=centos-master peerURLs=http://192.168.59.135:2380 clientURLs=http://192.168.59.135:2379 isLeader=false# etcdctl cluster-healthmember 10a23ff41e3abcb8 is healthy: got healthy result from http://192.168.59.132:2379member 168ea6ce7632b2e4 is healthy: got healthy result from http://192.168.59.133:2379member 587d83f824bf96c6 is healthy: got healthy result from http://192.168.59.135:2379cluster is healthy
查看 节点情况（在 Master）
# kubectl get nodesNAME STATUS AGEcentos-minion1 Ready 1hcentos-minion2 Ready 1h
查看Flannel网卡
[root@centos-minion1 ~]# ifconfig flannel0flannel0: flags=4305<UP,POINTOPOINT,RUNNING,NOARP,MULTICAST> mtu 1472 inet 172.17.34.0 netmask 255.255.0.0 destination 172.17.34.0 unspec 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 txqueuelen 500 (UNSPEC) RX packets 0 bytes 0 (0.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 0 bytes 0 (0.0 B) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0[root@centos-minion2 ~]# ifconfig flannel0flannel0: flags=4305<UP,POINTOPOINT,RUNNING,NOARP,MULTICAST> mtu 1472 inet 172.17.59.0 netmask 255.255.0.0 destination 172.17.59.0 inet6 fe80::2d54:2169:1a0:d364 prefixlen 64 scopeid 0x20<link> unspec 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 txqueuelen 500 (UNSPEC) RX packets 0 bytes 0 (0.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 3 bytes 144 (144.0 B) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
本文出自 “bamboo” 博客，请务必保留此出处http://wuyebamboo.blog.51cto.com/3344855/1977496
KUBERNETES-1.52 集群搭建
原文地址：http://wuyebamboo.blog.51cto.com/3344855/1977496