kubernetes部署Master组件

在部署Kubernetes Master之前一定要确保etcd、flannel、docker是正常工作的，否则先解决问题再继续。
Master组件组要包括kube-apiserver，kube-scheduler，kube-controller-manager。
1、下载解压kubernetes server二进制包这里是v1.14：

tar -zxvf kubernetes-server-linux-amd64.tar.gz 
cd kubernetes/server/bin/
cp kube-scheduler kube-apiserver kube-controller-manager kubectl /opt/k8s/bin/

安装APIserver组件

2.部署kube-apiserver组件 创建TLS Bootstrapping Token
#自动生成token：

head -c 16 /dev/urandom | od -An -t x | tr -d ' '

vim /opt/k8s/token.csv
16位token,kubelet-bootstrap,10001,"system:kubelet-bootstrap"

3、创建Apiserver配置文件
vim /opt/k8s/cfg/kube-apiserver.conf

KUBE_APISERVER_OPTS="--logtostderr=true \
--v=4 \
--etcd-servers=https://192.168.122.134:2379,https://192.168.122.135:2379,https://192.168.122.136:2379 \
--bind-address=192.168.122.134 \
--secure-port=6443 \
--advertise-address=192.168.122.134 \
--allow-privileged=true \
--service-cluster-ip-range=10.10.10.0/24 \
--enable-admission-plugins=NamespaceLifecycle,LimitRanger,ServiceAccount,ResourceQuota,NodeRestriction \
--authorization-mode=RBAC,Node \
--enable-bootstrap-token-auth \
--token-auth-file=/opt/k8s/cfg/token.csv \
--service-node-port-range=30000-50000 \
--tls-cert-file=/opt/k8s/ssl/server.pem  \
--tls-private-key-file=/opt/k8s/ssl/server-key.pem \
--client-ca-file=/opt/k8s/ssl/ca.pem \
--service-account-key-file=/opt/k8s/ssl/ca-key.pem \
--etcd-cafile=/opt/k8s/ssl/ca.pem \
--etcd-certfile=/opt/k8s/ssl/server.pem \
--etcd-keyfile=/opt/k8s/ssl/server-key.pem"

创建service：

vim /usr/lib/systemd/system/kube-apiserver.service

[Unit]
Description=Kubernetes API Server
Documentation=https://github.com/kubernetes/kubernetes

[Service]
EnvironmentFile=-/opt/k8s/cfg/kube-apiserver.conf
ExecStart=/opt/k8s/bin/kube-apiserver $KUBE_APISERVER_OPTS
Restart=on-failure

[Install]
WantedBy=multi-user.target

启动服务：

systemctl daemon-reload
systemctl enable kube-apiserver
systemctl start kube-apiserver

安装scheduler组件：

配置scheduler：

vim /opt/k8s/cfg/kube-scheduler.conf

KUBE_SCHEDULER_OPTS="--logtostderr=true --v=4 --master=127.0.0.1:8080 --leader-elect"      

创建service：

vim /usr/lib/systemd/system/kube-scheduler.service

[Unit]
Description=Kubernetes Scheduler
Documentation=https://github.com/kubernetes/kubernetes

[Service]
EnvironmentFile=-/opt/k8s/cfg/kube-scheduler.conf
ExecStart=/opt/k8s/bin/kube-scheduler $KUBE_SCHEDULER_OPTS
Restart=on-failure

[Install]
WantedBy=multi-user.target

启动服务：

systemctl daemon-reload
systemctl enable kube-scheduler
systemctl start kube-scheduler

安装controller-manager组件

配置kube-controller-manager文件：

vim /opt/k8s/cfg/kube-controller-manager.conf

KUBE_CONTROLLER_MANAGER_OPTS="--logtostderr=true \
--v=4 \
--master=127.0.0.1:8080 \
--leader-elect=true \
--address=127.0.0.1 \
--service-cluster-ip-range=10.10.10.0/24 \
--cluster-name=kubernetes \
--cluster-signing-cert-file=/opt/k8s/ssl/ca.pem \
--cluster-signing-key-file=/opt/k8s/ssl/ca-key.pem  \
--root-ca-file=/opt/k8s/ssl/ca.pem \
--service-account-private-key-file=/opt/k8s/ssl/ca-key.pem"

创建service：

vim /usr/lib/systemd/system/kube-controller-manager.service

[Unit]
Description=Kubernetes Controller Manager
Documentation=https://github.com/kubernetes/kubernetes

[Service]
EnvironmentFile=-/opt/k8s/cfg/kube-controller-manager.conf
ExecStart=/opt/k8s/bin/kube-controller-manager $KUBE_CONTROLLER_MANAGER_OPTS
Restart=on-failure

[Install]
WantedBy=multi-user.target

启动服务

systemctl daemon-reload
systemctl enable kube-controller-manager
systemctl start kube-controller-manager

查看个服务状态
在/opt/k8s目录下运行：

bin/kubectl get cs