页面表格中找到Server Binaries中的kubernetes-server-linux-amd64.tar.gz文件，下载到本地。该压缩包中包括了k8s需要运行的全部服务程序文件
2.2Master安装
2.2.1Docker安装
（1）设置yum源
vi /etc/yum.repos.d/docker.repo [dockerrepo] name=Docker Repository baseurl=https://yum.dockerproject.org/repo/main/centos/$releasever/ enabled=1 gpgcheck=1 gpgkey=https://yum.dockerproject.org/gpg
（2）安装docker
yum install docker-engine
（3）安装后查看docker版本
docker -v
2.2.2etcd服务
etcd做为Kubernetes集群的主要服务，在安装Kubernetes各服务前需要首先安装和启动。
下载etcd二进制文件
https://github.com/etcd-io/etcd/releases
上传到master
可以使用lrzsz，如果没有安装，可以通过yum进行安装 yum install lrzsz
将将etcd和etcdctl文件复制到/usr/bin目录
配置systemd服务文件 /usr/lib/systemd/system/etcd.service
[Unit] Description=Etcd Server After=network.target [Service] Type=simple EnvironmentFile=-/etc/etcd/etcd.conf WorkingDirectory=/var/lib/etcd/ ExecStart=/usr/bin/etcd Restart=on-failure [Install] WantedBy=multi-user.target
启动与测试etcd服务
systemctl daemon-reload systemctl enable etcd.servic e mkdir -p /var/lib/etcd/ systemctl start etcd.service etcdctl cluster-health
2.2.3kube-apiserver服务
解压后将kube-apiserver、kube-controller-manager、kube-scheduler以及管理要使用的kubectl二进制命令文件放到/usr/bin目录，即完成这几个服务的安装。
cp kube-apiserver kube-controller-manager kube-scheduler kubectl /usr/bin/
下面是对kube-apiserver服务进行配置
编辑systemd服务文件 vi /usr/lib/systemd/system/kube-apiserver.service
[Unit] Description=Kubernetes API Serve r Documentation=https://github.com/kubernetes/kubernetes After=etcd.service Wants=etcd.service [Service] EnvironmentFile=/etc/kubernetes/apiserver ExecStart=/usr/bin/kube-apiserver $KUBE_API_ARGS Restart=on-failure Type=notify [Install] WantedBy=multi-user.target
配置文件
创建目录：mkdir /etc/kubernetes
vi /etc/kubernetes/apiserver
KUBE_API_ARGS="--storage-backend=etcd3 --etcd-servers=http://127.0.0.1:2379 --insecure-bind- address=0.0.0.0 --insecure-port=8080 --service-cluster-ip-range=169.169.0.0/16 --service-node- port-range=1-65535 --admission- control=NamespaceLifecycle,NamespaceExists,LimitRanger,SecurityContextDeny,ServiceAccount,Defaul tStorageClass,ResourceQuota --logtostderr=true --log-dir=/var/log/kubernetes --v=2"
2.2.4kube-controller-manager服务
kube-controller-manager服务依赖于kube-apiserver服务：
配置systemd服务文件：vi /usr/lib/systemd/system/kube-controller-manager.servic
[Unit] Description=Kubernetes Controller Manager Documentation=https://github.com/GoogleCloudPlatform/kubernetes After=kube-apiserver.service Requires=kube-apiserver.service [Service] EnvironmentFile=-/etc/kubernetes/controller-manager ExecStart=/usr/bin/kube-controller-manager $KUBE_CONTROLLER_MANAGER_ARGS Restart=on-failure LimitNOFILE=65536 [Install] WantedBy=multi-user.target
配置文件 vi /etc/kubernetes/controller-manager
KUBE_CONTROLLER_MANAGER_ARGS="--master=http://192.168.126.140:8080 --logtostderr=true --log- dir=/var/log/kubernetes --v=2"
2.2.5kube-scheduler服务
kube-scheduler服务也依赖于kube-apiserver服务。
配置systemd服务文件：vi /usr/lib/systemd/system/kube-scheduler.service
[Unit]
Description=Kubernetes Scheduler
Documentation=https://github.com/GoogleCloudPlatform/kubernetes
After=kube-apiserver.service Requires=kube-apiserver.service
[Service]
EnvironmentFile=-/etc/kubernetes/scheduler ExecStart=/usr/bin/kube-scheduler $KUBE_SCHEDULER_ARGS Restart=on-failure
LimitNOFILE=65536
[Install]
WantedBy=multi-user.target
配置文件：vi /etc/kubernetes/scheduler
KUBE_SCHEDULER_ARGS="--master=http://192.168.126.140:8080 --logtostderr=true --log- dir=/var/log/kubernetes --v=2"
2.2.6启动
完成以上配置后，按顺序启动服务
systemctl daemon-reload
systemctl enable kube-apiserver.service systemctl start kube-apiserver.service
systemctl enable kube-controller-manager.service
systemctl start kube-controller-manager.service systemctl enable kube-scheduler.service systemctl start kube-scheduler.service
检查每个服务的健康状态：
systemctl status kube-apiserver.service
systemctl status kube-controller-manager.service systemctl status kube-scheduler.service
2.3Node1安装
在Node1节点上，以同样的方式把从压缩包中解压出的二进制文件kubelet kube-proxy放到/usr/bin目录中。在Node1节点上需要预先安装docker,请参考Master上Docker的安装，并启动Docker
2.3.1kubelet服务
配置systemd服务文件：vi /usr/lib/systemd/system/kubelet.service
[Unit]
Description=Kubernetes Kubelet Server
Documentation=https://github.com/GoogleCloudPlatform/kubernetes
After=docker.service
Requires=docker.service
[Service] WorkingDirectory=/var/lib/kubelet
EnvironmentFile=-/etc/kubernetes/kubelet
ExecStart=/usr/bin/kubelet $KUBELET_ARGS
Restart=on-failure
KillMode=process
[Install]
WantedBy=multi-user.target
mkdir -p /var/lib/kubelet
配置文件：vi /etc/kubernetes/kubelet
KUBELET_ARGS="--kubeconfig=/etc/kubernetes/kubeconfig --hostname-override=192.168.126.142 -- logtostderr=false --log-dir=/var/log/kubernetes --v=2 --fail-swap-on=false"
用于kubelet连接Master Apiserver的配置文件
vi /etc/kubernetes/kubeconfig
apiVersion: v1 kind: Config clusters: -cluster: server: http://192.168.126.140:8080 name: local contexts: -context: cluster: local name: mycontext current-context: mycontext
2.3.2kube-proxy服务
kube-proxy服务依赖于network服务,所以一定要保证network服务正常，如果network服务启动失败，常见解决方案有以下几中：
1.和 NetworkManager 服务有冲突，这个好解决，直接关闭 NetworkManger 服务就好了， service NetworkManager stop，并且禁止开机启动 chkconfig NetworkManager off 。之后重启就好了
2.和配置文件的MAC地址不匹配，这个也好解决，使用ip addr（或ifconfig）查看mac地址， 将/etc/sysconfig/network-scripts/ifcfg-xxx中的HWADDR改为查看到的mac地址
3.设定开机启动一个名为NetworkManager-wait-online服务，命令为：
systemctl enable NetworkManager-wait-online.service
4.查看/etc/sysconfig/network-scripts下，将其余无关的网卡位置文件全删掉，避免不必要的影响，即只留一个以ifcfg开头的文件
配置systemd服务文件：vi /usr/lib/systemd/system/kube-proxy.service
[Unit] Description=Kubernetes Kube-proxy Server Documentation=https://github.com/GoogleCloudPlatform/kubernetes After=network.service Requires=network.service [Service] EnvironmentFile=/etc/kubernetes/proxy ExecStart=/usr/bin/kube-proxy $KUBE_PROXY_ARGS Restart=on-failure LimitNOFILE=65536 KillMode=process [Install] WantedBy=multi-user.target
配置文件：vi /etc/kubernetes/proxy
KUBE_PROXY_ARGS="--master=http://192.168.126.140:8080 --hostname-override=192.168.126.142 -- logtostderr=true --log-dir=/var/log/kubernetes --v=2"
2.3.3启动
systemctl daemon-reload systemctl enable kubelet systemctl start kubelet systemctl status kubelet systemctl enable kube-proxy systemctl start kube-proxy systemctl status kube-proxy
2.4Node2安装
请参考Node1安装，注意修改IP
2.5健康检查与示例测试
查看集群状态
查看master集群组件状态
nginx-rc.yaml
apiVersion: v1 kind: ReplicationController metadata: name: nginx spec: replicas: 3 selector: app: nginx template: metadata: labels: app: nginx spec: containers: - name: nginx image: nginx ports: - containerPort: 80
kubectl create -f nginx-rc.yaml
nginx-svc.yaml
apiVersion: v1 kind: Service metadata: name: nginx spec: type: NodePort ports: - port: 80 nodePort: 33333 selector: app: nginx
kubectl create -f nginx-svc.yaml
查看pod
