K8S二进制部署---双master和仪表盘

Posted 2022-03-26 正在迷途

​​承接前文​​

​​https://blog.51cto.com/u_15382411/5143381​

一、master02 节点部署

//从 master01 节点上拷贝证书文件、各master组件的配置文件和服务管理文件到 master02 节点
scp -r /opt/etcd/ root@192.168.132.5:/opt/
scp -r /opt/kubernetes/ root@192.168.132.5:/opt
scp /usr/lib/systemd/system/kube-apiserver,kube-controller-manager,kube-scheduler.service root@192.168.132.5:/usr/lib/systemd/system/
  
cd
ls -A
scp -r .ssh/ 192.168.132.5:`pwd`
scp -r .kube/ 192.168.132.5:`pwd`

修改配置文件kube-apiserver中的IP
vim /opt/kubernetes/cfg/kube-apiserver
KUBE_APISERVER_OPTS="--logtostderr=true \\
--v=4 \\
--etcd-servers=https://192.168.80.10:2379,https://192.168.80.11:2379,https://192.168.80.12:2379 \\
--bind-address=192.168.132.5 \\        #修改
--secure-port=6443 \\
--advertise-address=192.168.132.5 \\     #修改
......
vim /opt/kubernetes/cfg/kube-apiserver
KUBE_APISERVER_OPTS="--logtostderr=true \\
--v=4 \\
--etcd-servers=https://192.168.80.10:2379,https://192.168.80.11:2379,https://192.168.80.12:2379 \\
--bind-address=192.168.132.5 \\        #修改
--secure-port=6443 \\
--advertise-address=192.168.132.5 \\     #修改
......

在 master02 节点上启动各服务并设置开机自启
systemctl start kube-apiserver.service
systemctl enable kube-apiserver.service
ps aux | grep apiserver

systemctl start kube-controller-manager.service
systemctl enable kube-controller-manager.service
ps aux | grep controller

systemctl start kube-scheduler.service
systemctl enable kube-scheduler.service 
ps aux | grep scheduler

查看node节点状态
ln -s /opt/kubernetes/bin/* /usr/local/bin/
kubectl get nodes
kubectl get nodes -o wide     #-o=wide：输出额外信息；对于Pod，将输出Pod所在的Node名

​​此时在master02节点查到的node节点状态仅是从etcd查询到的信息，而此时node节点实际上并未与master02节点建立通信连接，因此需要使用一个VIP把node节点与master节点都关联起来​​​

​二、负载均衡部署 ​

​​配置load balancer集群双机热备负载均衡（nginx实现负载均衡，keepalived实现双机热备）​​

​1、在lb01、lb02节点上操作 ​

​1.配置nginx的官方在线yum源，配置本地nginx的yum源​

cat > /etc/yum.repos.d/nginx.repo << EOF
[nginx]
name=nginx repo
baseurl=http://nginx.org/packages/centos/7/$basearch/
gpgcheck=0
EOF

yum install nginx -y

2.修改nginx配置文件，配置四层反向代理负载均衡，指定k8s群集2台master的节点ip和6443端口

vim /etc/nginx/nginx.conf
events 
    worker_connections  1024;

#添加
stream 
    log_format  main  $remote_addr $upstream_addr - [$time_local] $status $upstream_bytes_sent;
    
    access_log  /var/log/nginx/k8s-access.log  main;

    upstream k8s-apiserver 
        server 192.168.132.50:6443;
        server 192.168.132.5:6443;
    
    server 
        listen 6443;
        proxy_pass K8S——单master节点和基于单master节点的双master节点二进制部署

 K8S——单master节点和基于单master节点的双master节点二进制部署（本机实验，防止卡顿，所以多master就不做3台了）
 K8S——单master节点和基于单master节点的双master节点二进制部署（本机实验，防止卡顿，所以多master就不做3台了）
 K8S二进制部署---单节点master
 k8s多Master集群二进制部署
 k8s多Master集群二进制部署