1. 创建配置文件

  1. cat > /opt/kubernetes/cfg/kube-controller-manager.conf << EOF
  2. KUBE_CONTROLLER_MANAGER_OPTS="--logtostderr=false \\
  3. --v=2 \\
  4. --log-dir=/opt/kubernetes/logs \\
  5. --leader-elect=true \\
  6. --master=127.0.0.1:8080 \\
  7. --bind-address=127.0.0.1 \\
  8. --allocate-node-cidrs=true \\
  9. --cluster-cidr=10.244.0.0/16 \\
  10. --service-cluster-ip-range=10.0.0.0/24 \\
  11. --cluster-signing-cert-file=/opt/kubernetes/ssl/ca.pem \\
  12. --cluster-signing-key-file=/opt/kubernetes/ssl/ca-key.pem  \\
  13. --root-ca-file=/opt/kubernetes/ssl/ca.pem \\
  14. --service-account-private-key-file=/opt/kubernetes/ssl/ca-key.pem \\
  15. --experimental-cluster-signing-duration=87600h0m0s"
  16. EOF
  • –master：通过本地非安全本地端口8080连接apiserver。
  • –leader-elect：当该组件启动多个时，自动选举（HA）

  • –cluster-signing-cert-file/–cluster-signing-key-file：自动为kubelet颁发证书的CA，与apiserver保持一致

    2. systemd管理controller-manager

    cat > /usr/lib/systemd/system/kube-controller-manager.service << EOF
[Unit]
Description=Kubernetes Controller Manager
Documentation=https://github.com/kubernetes/kubernetes
[Service]
EnvironmentFile=/opt/kubernetes/cfg/kube-controller-manager.conf
ExecStart=/opt/kubernetes/bin/kube-controller-manager \$KUBE_CONTROLLER_MANAGER_OPTS
Restart=on-failure
[Install]
WantedBy=multi-user.target
EOF

    3. 启动并设置开机启动

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

    4.6 部署kube-scheduler

    1. 创建配置文件

    cat > /opt/kubernetes/cfg/kube-scheduler.conf << EOF
KUBE_SCHEDULER_OPTS="--logtostderr=false \
--v=2 \
--log-dir=/opt/kubernetes/logs \
--leader-elect \
--master=127.0.0.1:8080 \
--bind-address=127.0.0.1"
EOF

  • –master：通过本地非安全本地端口8080连接apiserver。

  • –leader-elect：当该组件启动多个时，自动选举（HA）

    2. systemd管理scheduler

    cat > /usr/lib/systemd/system/kube-scheduler.service << EOF
[Unit]
Description=Kubernetes Scheduler
Documentation=https://github.com/kubernetes/kubernetes
[Service]
EnvironmentFile=/opt/kubernetes/cfg/kube-scheduler.conf
ExecStart=/opt/kubernetes/bin/kube-scheduler \$KUBE_SCHEDULER_OPTS
Restart=on-failure
[Install]
WantedBy=multi-user.target
EOF

    3. 启动并设置开机启动

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

    4. 查看集群状态

    所有组件都已经启动成功，通过kubectl工具查看当前集群组件状态：
    kubectl get cs
NAME                 STATUS    MESSAGE             ERROR
scheduler            Healthy   ok                  
controller-manager   Healthy   ok                  
etcd-2               Healthy   {"health":"true"}   
etcd-1               Healthy   {"health":"true"}   
etcd-0               Healthy   {"health":"true"}
    如上输出说明Master节点组件运行正常。