Kubernetes多master部署（6）---安装master

• 获取K8S二进制包

包：kubernetes-server-linux-amd64.tar.gz

三台master都要操作

master需要三个组件：kube-apiserver kube-controller-manager kube-scheduler

我们将其拿出来 放入指定目录：

tar -zxvf kubernetes-server-linux-amd64.tar.gz
cp kubernetes/server/bin/kube-scheduler ./
cp kubernetes/server/bin/kube-controller-manager ./
cp kubernetes/server/bin/kube-apiserver ./
[root@localhost kubernetes]# ls
apiserver.sh controller-manager.sh kube-apiserver kube-controller-manager kubectl kube-scheduler master.zip scheduler.sh

mv kube-apiserver kube-controller-manager kube-scheduler /opt/kubernetes/bin/
赋予权限
chmod +x /opt/kubernetes/bin/*


echo "export PATH=$PATH:/opt/kubernetes/bin" >> /etc/profile

安装kube-apiserver

#################################################################################

#readme
#./apiserver.sh 10.50.182.65 https://10.50.182.65:2379,https://10.50.182.66:2379,https://10.50.182.67:2379

MASTER_ADDRESS=${1:-"10.50.182.65"}
ETCD_SERVERS=${2:-"http://127.0.0.1:2379"}

cat <<EOF >/opt/kubernetes/cfg/kube-apiserver

KUBE_APISERVER_OPTS="--logtostderr=true \
--v=4 \
--etcd-servers=${ETCD_SERVERS} \
--insecure-bind-address=0.0.0.0 \
--bind-address=${MASTER_ADDRESS} \
--insecure-port=8080 \
--secure-port=6443 \
--advertise-address=${MASTER_ADDRESS} \
--allow-privileged=true \
--service-cluster-ip-range=10.147.224.0/20 \
--admission-control=NamespaceLifecycle,LimitRanger,SecurityContextDeny,ServiceAccount,ResourceQuota,NodeRestriction 
--authorization-mode=RBAC,Node \
--kubelet-https=true \
--enable-bootstrap-token-auth \
--token-auth-file=/opt/kubernetes/cfg/token.csv \
--service-node-port-range=30000-50000 \
--tls-cert-file=/opt/kubernetes/ssl/server.pem \
--tls-private-key-file=/opt/kubernetes/ssl/server-key.pem \
--client-ca-file=/opt/kubernetes/ssl/ca.pem \
--service-account-key-file=/opt/kubernetes/ssl/ca-key.pem \
--etcd-cafile=/opt/kubernetes/ssl/ca.pem \
--etcd-certfile=/opt/kubernetes/ssl/server.pem \
--etcd-keyfile=/opt/kubernetes/ssl/server-key.pem"

EOF

cat <<EOF >/usr/lib/systemd/system/kube-apiserver.service
[Unit]
Description=Kubernetes API Server
Documentation=https://github.com/kubernetes/kubernetes

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

[Install]
WantedBy=multi-user.target
EOF

systemctl daemon-reload
systemctl enable kube-apiserver
systemctl restart kube-apiserver

执行脚本：

./apiserver.sh 10.50.182.65 https://10.50.182.65:2379,https://10.50.182.66:2379,https://10.50.182.67:2379

安装：controller-manager

[root@localhost master_pkg]# cat controller-manager.sh
#!/bin/bash

MASTER_ADDRESS=${1:-"127.0.0.1"}

cat <<EOF >/opt/kubernetes/cfg/kube-controller-manager


KUBE_CONTROLLER_MANAGER_OPTS="--logtostderr=true \
--v=4 \
--master=${MASTER_ADDRESS}: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/kubernetes/ssl/ca.pem \
--cluster-signing-key-file=/opt/kubernetes/ssl/ca-key.pem \
--service-account-private-key-file=/opt/kubernetes/ssl/ca-key.pem \
--root-ca-file=/opt/kubernetes/ssl/ca.pem"

EOF

cat <<EOF >/usr/lib/systemd/system/kube-controller-manager.service
[Unit]
Description=Kubernetes Controller Manager
Documentation=https://github.com/kubernetes/kubernetes

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

[Install]
WantedBy=multi-user.target
EOF

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

执行脚本安装启动，日志在/var/log/messages：

./controller-manager.sh 127.0.0.1
ps uxa |grep controller-manager

安装scheduler：

编写安装脚本：

[root@localhost master_pkg]# cat scheduler.sh
#!/bin/bash

MASTER_ADDRESS=${1:-"127.0.0.1"}

cat <<EOF >/opt/kubernetes/cfg/kube-scheduler

KUBE_SCHEDULER_OPTS="--logtostderr=true \
--v=4 \
--master=${MASTER_ADDRESS}:8080 \
--leader-elect"

EOF

cat <<EOF >/usr/lib/systemd/system/kube-scheduler.service
[Unit]
Description=Kubernetes Scheduler
Documentation=https://github.com/kubernetes/kubernetes

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

[Install]
WantedBy=multi-user.target
EOF

systemctl daemon-reload
systemctl enable kube-scheduler
systemctl restart kube-scheduler

执行脚本安装启动，日志在/var/log/messages：

./scheduler.sh 127.0.0.1
ps aux |grep scheduler

测试集群: