k8s 1.9.0-手动安装-2

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