1 下载etcd新版
https://github.com/coreos/etcd/releases
直接下载k8s的二进制包
https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG-1.9.md#downloads-for-v190
下载其中的server和node
2 master安装
2.1 将etcd放入/usr/bin，并确认可执行权限
将解压缩的server里面的组件，放入/usr/bin
ubuntu@k8s-master:/usr/bin$ ls kube* kube-apiserver kube-controller-manager kubectl kubelet kube-proxy kube-scheduler ubuntu@k8s-master:/usr/bin$
2.2 制作配置文件
etcd的配置文件
ubuntu@k8s-master:~$ cat /etc/etcd/etcd.conf ETCD_NAME=default ETCD_DATA_DIR="/var/lib/etcd/" ETCD_LISTEN_CLIENT_URLS="http://0.0.0.0:2379" ETCD_ADVERTISE_CLIENT_URLS="http://192.168.56.110:2379"
kube的通用配置文件
config
ubuntu@k8s-master:/usr/bin$ cat /etc/kubernetes/config KUBE_LOGTOSTDERR="--logtostderr=true" KUBE_LOG_LEVEL="--v=0" KUBE_ALLOW_PRIV="--allow-privileged=false" KUBE_MASTER="--master=http://192.168.56.110:8080"
kube-apiserver
ubuntu@k8s-master:/usr/bin$ cat /etc/kubernetes/apiserver # # The following values are used to configure the kube-apiserver # # The address on the local server to listen to. #KUBE_API_ADDRESS="--address=0.0.0.0" KUBE_API_ADDRESS="--insecure-bind-address=0.0.0.0" # The port on the local server to listen on. KUBE_API_PORT="--port=8080" # Port minions listen on #KUBELET_PORT="--kubelet-port=10250" # Comma separated list of nodes in the etcd cluster KUBE_ETCD_SERVERS="--etcd-servers=http://192.168.56.110:2379" # Address range to use for services KUBE_SERVICE_ADDRESSES="--service-cluster-ip-range=192.168.4.0/24" # default admission control policies KUBE_ADMISSION_CONTROL="--admission-control=NamespaceLifecycle,NamespaceExists,LimitRanger,ResourceQuota" # Add your own! KUBE_API_ARGS="" ubuntu@k8s-master:/usr/bin$
controll-manager
ubuntu@k8s-master:/usr/bin$ cat /etc/kubernetes/controller-manager KUBE_CONTROLLER_MANAGER_ARGS=""
scheduler
ubuntu@k8s-master:/usr/bin$ cat /etc/kubernetes/scheduler KUBE_SCHEDULER_ARGS=""
2.3 启动文件
etcd的启动文件
ubuntu@k8s-master:~$ cat /lib/systemd/system/etcd.service [Unit] Description=Etcd Server Documentation=https://github.com/coreos/etcd After=network.target [Service] User=root Type=notify EnvironmentFile=-/etc/etcd/etcd.conf ExecStart=/usr/bin/etcd Restart=on-failure RestartSec=10s LimitNOFILE=40000 [Install] WantedBy=multi-user.target
apisever
ubuntu@k8s-master:/usr/bin$ cat /lib/systemd/system/kube-apiserver.service [Unit] Description=Kubernetes API Server Documentation=https://github.com/GoogleCloudPlatform/kubernetes After=network.target After=etcd.service Wants=etcd.service [Service] User=root EnvironmentFile=-/etc/kubernetes/config EnvironmentFile=-/etc/kubernetes/apiserver ExecStart=/usr/bin/kube-apiserver $KUBE_LOGTOSTDERR $KUBE_LOG_LEVEL $KUBE_ETCD_SERVERS $KUBE_API_ADDRESS $KUBE_API_PORT $KUBELET_PORT $KUBE_ALLOW_PRIV $KUBE_SERVICE_ADDRESSES $KUBE_ADMISSION_CONTROL $KUBE_API_ARGS Restart=on-failure Type=notify LimitNOFILE=65536 [Install] WantedBy=multi-user.target
controller-manager
ubuntu@k8s-master:/usr/bin$ cat /lib/systemd/system/kube-controller-manager.service [Unit] Description=Kubernetes Controller Manager Documentation=https://github.com/GoogleCloudPlatform/kubernetes After=etcd.service After=kube-apiserver.service Requires=etcd.service Requires=kube-apiserver.service [Service] User=root EnvironmentFile=-/etc/kubernetes/config EnvironmentFile=-/etc/kubernetes/controller-manager ExecStart=/usr/bin/kube-controller-manager $KUBE_LOGTOSTDERR $KUBE_LOG_LEVEL $KUBE_MASTER $KUBE_CONTROLLER_MANAGER_ARGS Restart=on-failure LimitNOFILE=65536 [Install] WantedBy=multi-user.target
scheduler
ubuntu@k8s-master:/usr/bin$ cat /lib/systemd/system/kube-scheduler.service [Unit] Description=Kubernetes Scheduler Documentation=https://github.com/kubernetes/kubernetes [Service] User=root EnvironmentFile=-/etc/kubernetes/config EnvironmentFile=-/etc/kubernetes/scheduler ExecStart=/usr/bin/kube-scheduler $KUBE_LOGTOSTDERR $KUBE_MASTER Restart=on-failure LimitNOFILE=65536 [Install] WantedBy=multi-user.target
2.4 配置完成后启动
sudo systemctl daemon-reload sudo systemctl enable kube-apiserver kube-controller-manager kube-scheduler sudo systemctl start kube-apiserver kube-controller-manager kube-scheduler
3 node安装
3.1 将kube的二进制包解压，将组件放入/usr/bin
ubuntu@k8s-node:~$ ls /usr/bin/kube* /usr/bin/kubectl /usr/bin/kubelet /usr/bin/kube-proxy
3.2 制作配置文件
全局配置文件，注意1.9版本已经不支持master命令
ubuntu@k8s-node:~$ cat /etc/kubernetes/config KUBE_LOGTOSTDERR="--logtostderr=true" KUBE_LOG_LEVEL="--v=3" KUBE_ALLOW_PRIV="--allow-privileged=false" #KUBE_MASTER="--master=http://192.168.56.110:8080"
kubelet,需要注意
a. kubelet和apiserver连接方式改变，需要额外一个yaml的配置文件kubeconfig
b. 选项使能swap和并指定kubeconfig
kubeconfig
ubuntu@k8s-node:~$ cat /var/lib/kubelet/kubeconfig
apiVersion: v1
kind: Config
users:
- name: kubelet
clusters:
- name: kubernetes
cluster:
server: http://192.168.56.110:8080
contexts:
- context:
cluster: kubernetes
user: kubelet
name: service-account-context
current-context: service-account-context
kubelet配置文件
ubuntu@k8s-node:~$ cat /etc/kubernetes/kubelet
#KUBELET_ADDRESS="--address=127.0.0.1"
KUBELET_HOSTNAME="--hostname-override=192.168.56.111"
#KUBELET_API_SERVER="--api-servers=http://192.168.56.110:8080"
# pod infrastructure container
KUBELET_POD_INFRA_CONTAINER="--pod-infra-container-image=registry.access.redhat.com/rhel7/pod-infrastructure:latest"
KUBELET_ARGS="--enable-server=true --enable-debugging-handlers=true --fail-swap-on=false --kubeconfig=/var/lib/kubelet/kubeconfig"
proxy配置文件
ubuntu@k8s-node:~$ cat /etc/kubernetes/proxy KUBE_PROXY_ARGS=""
3.3 启动文件
kubelet
ubuntu@k8s-node:~$ cat /lib/systemd/system/kubelet.service [Unit] Description=Kubernetes Kubelet Documentation=https://github.com/GoogleCloudPlatform/kubernetes After=docker.service Requires=docker.service [Service] WorkingDirectory=/var/lib/kubelet EnvironmentFile=-/etc/kubernetes/config EnvironmentFile=-/etc/kubernetes/kubelet ExecStart=/usr/bin/kubelet $KUBE_LOGTOSTDERR $KUBE_LOG_LEVEL $KUBELET_API_SERVER $KUBELET_ADDRESS $KUBELET_PORT $KUBELET_HOSTNAME $KUBE_ALLOW_PRIV $KUBELET_POD_INFRA_CONTAINER $KUBELET_ARGS Restart=on-failure KillMode=process [Install] WantedBy=multi-user.target
proxy
ubuntu@k8s-node:~$ cat /lib/systemd/system/kube-proxy.service [Unit] Description=Kubernetes Proxy Documentation=https://github.com/GoogleCloudPlatform/kubernetes After=network.target [Service] EnvironmentFile=-/etc/kubernetes/config EnvironmentFile=-/etc/kubernetes/proxy ExecStart=/usr/bin/kube-proxy $KUBE_LOGTOSTDERR $KUBE_LOG_LEVEL $KUBE_MASTER $KUBE_PROXY_ARGS Restart=on-failure LimitNOFILE=65536 [Install] WantedBy=multi-user.target
3.4 启动服务
sudo systemctl daemon-reload sudo systemctl enable kubelet sudo systemctl start kubelet
4 验证服务
ubuntu@k8s-master:~$ kubectl get nodes NAME STATUS ROLES AGE VERSION 192.168.56.111 Ready <none> 47m v1.9.0
