#操作系统Centos7.9#基础环境：这里我选择3个master，2个work，1个vip对外访问。

#模板准备

#修改主机名和IP

#在3台主节点执行，安装nginx+keepalive

#keepalived配置

#配置nginx 36443端口检测脚本

#部署master1的etcd，二进制文件包部署。

#配置etcd systemctl管理和集群

#安装kubeadm，kubelet和kubectl

#操作系统Centos7.9
#基础环境：这里我选择3个master，2个work，1个vip对外访问。

主机	IP	需要安装的软件
k8s-master1	192.168.1.201	docker，etcd，nginx，keepalived
k8s-master2	192.168.1.202	docker，etcd，nginx，keepalived
k8s-master3	192.168.1.203	docker，etcd，nginx，keepalived
k8s-node1	192.168.1.204	docker
k8s-node2	192.168.1.205	docker
负载均衡器对外IP	192.168.1.88	(VIP)

#最终环境

#模板准备

准备一台机器做基础模板，配置好ip，例如：192.168.1.254预先安装一些环境，直接复用，不用等每台机器启动后在去安装。

#预安装一些工具方便后续使用
yum install -y vim net-tools wget bash-com* git unzip lrzsz ntpdate -y
#同步下时间 
ntpdate time.windows.com 

# 关闭防火墙
systemctl stop firewalld
systemctl disable firewalld

# 关闭selinux
sed -i 's/enforcing/disabled/' /etc/selinux/config
setenforce 0

# 关闭swap
swapoff -a
sed -ri 's/.*swap.*/#&/' /etc/fstab

# 将桥接的IPv4流量传递到iptables的链
cat > /etc/sysctl.d/k8s.conf << EOF
net.bridge.bridge-nf-call-ip6tables = 1
net.bridge.bridge-nf-call-iptables = 1
EOF
sysctl --system  # 生效

# 添加hosts 
cat >> /etc/hosts << EOF
192.168.1.201 k8s-master1
192.168.1.202 k8s-master2
192.168.1.203 k8s-master3
192.168.1.204 k8s-node1
192.168.1.205 k8s-node2
EOF

#安装docker
wget https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo -O\
 /etc/yum.repos.d/docker-ce.repo
yum -y install docker-ce
systemctl enable docker && systemctl start docker

#配置阿里云镜像加速器，可以通过修改daemon配置文件/etc/docker/daemon.json来使用加速器
mkdir -p /etc/docker
cat > /etc/docker/daemon.json <<-'EOF'
{
  "registry-mirrors": ["https://ufc53gaa.mirror.aliyuncs.com"],
  "exec-opts": ["native.cgroupdriver=systemd"]
}
EOF
systemctl daemon-reload
systemctl restart docker

#配置k8s阿里云镜像
cat > /etc/yum.repos.d/kubernetes.repo << EOF
[kubernetes]
name=Kubernetes
baseurl=https://mirrors.aliyun.com/kubernetes/yum/repos/kubernetes-el7-x86_64
enabled=1
gpgcheck=0
repo_gpgcheck=0
gpgkey=https://mirrors.aliyun.com/kubernetes/yum/doc/yum-key.gpg https://mirrors.aliyun.com/kubernetes/yum/doc/rpm-package-key.gpg
EOF

#关机 用于模板
init 0

#修改主机名和IP

#k8s-master1执行  #我的模板机ip是192.168.1.254所以这里用201替换254
hostnamectl set-hostname k8s-master1
sed -i 's/254/201/g' /etc/sysconfig/network-scripts/ifcfg-ens33
reboot

#k8s-master2执行
hostnamectl set-hostname k8s-master2
sed -i 's/254/202/g' /etc/sysconfig/network-scripts/ifcfg-ens33
reboot

#k8s-master3执行
hostnamectl set-hostname k8s-master3
sed -i 's/254/203/g' /etc/sysconfig/network-scripts/ifcfg-ens33
reboot

#k8s-node1执行
hostnamectl set-hostname k8s-node1
sed -i 's/254/204/g' /etc/sysconfig/network-scripts/ifcfg-ens33
reboot

#k8s-node2执行
hostnamectl set-hostname k8s-node2
sed -i 's/254/205/g' /etc/sysconfig/network-scripts/ifcfg-ens33
reboot

#在3台主节点执行，安装nginx+keepalive

[root@k8s-master1 ~]# yum install epel-release nginx keepalived  -y
[root@k8s-master2 ~]# yum install epel-release nginx keepalived  -y
[root@k8s-master3 ~]# yum install epel-release nginx keepalived  -y

#3台都要执行，配置nginx.conf自行修改ip
cat > /etc/nginx/nginx.conf << "EOF"
user nginx;
worker_processes auto;
error_log /var/log/nginx/error.log;
pid /run/nginx.pid;

include /usr/share/nginx/modules/*.conf;

events {
    worker_connections 1024;
}

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 192.168.1.201:6443;   # Master1 APISERVER IP:PORT
       server 192.168.1.202:6443;   # Master2 APISERVER IP:PORT
       server 192.168.1.203:6443;   # Master3 APISERVER IP:PORT
    }
    
    server {
       listen 36443;  # 由于nginx与master节点复用，这个监听端口不能是6443，否则会冲突
       proxy_pass k8s-apiserver;
    }
}

http {
    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
                      '$status $body_bytes_sent "$http_referer" '
                      '"$http_user_agent" "$http_x_forwarded_for"';

    access_log  /var/log/nginx/access.log  main;

    sendfile            on;
    tcp_nopush          on;
    tcp_nodelay         on;
    keepalive_timeout   65;
    types_hash_max_size 2048;

    include             /etc/nginx/mime.types;
    default_type        application/octet-stream;
}
EOF

#全部master都要装
yum install -y nginx-mod-stream.x86_64

#keepalived配置

##[root@k8s-master1 ~]# 
cat > /etc/keepalived/keepalived.conf << EOF
global_defs { 
   notification_email { 
     acassen@firewall.loc 
     failover@firewall.loc 
     sysadmin@firewall.loc 
   } 
   notification_email_from Alexandre.Cassen@firewall.loc  
   smtp_server 127.0.0.1 
   smtp_connect_timeout 30 
   router_id NGINX_MASTER
} 

vrrp_script check_nginx {
    script "/etc/keepalived/check_nginx.sh" # 判断返回状态码
}

vrrp_instance VI_1 { 
    state MASTER 
    interface ens33  # 修改为实际网卡名
    virtual_router_id 1 # 2 VRRP 路由 ID实例，每个实例是唯一的 
    priority 100    # 优先级，备服务器设置 90，80
    advert_int 1    # 指定VRRP 心跳包通告间隔时间
    authentication { 
        auth_type PASS      
        auth_pass 1111 
    }  
    # 虚拟IP
    virtual_ipaddress { 
        192.168.1.88/24  #虚拟ip
    } 
    track_script {
        check_nginx
    } 
}
EOF


##[root@k8s-master2 ~]# 
cat > /etc/keepalived/keepalived.conf << EOF
global_defs { 
   notification_email { 
     acassen@firewall.loc 
     failover@firewall.loc 
     sysadmin@firewall.loc 
   } 
   notification_email_from Alexandre.Cassen@firewall.loc  
   smtp_server 127.0.0.1 
   smtp_connect_timeout 30 
   router_id NGINX_BACKUP
} 

vrrp_script check_nginx {
    script "/etc/keepalived/check_nginx.sh" # 判断返回状态码
}

vrrp_instance VI_1 { 
    state BACKUP
    interface ens33  # 修改为实际网卡名
    virtual_router_id 2 # 2 VRRP 路由 ID实例，每个实例是唯一的 
    priority 90    # 优先级，备服务器设置 90，80
    advert_int 1    # 指定VRRP 心跳包通告间隔时间
    authentication { 
        auth_type PASS      
        auth_pass 1111 
    }  
    # 虚拟IP
    virtual_ipaddress { 
        192.168.1.88/24  #虚拟ip
    } 
    track_script {
        check_nginx
    } 
}
EOF



##[root@k8s-master3 ~]# 
cat > /etc/keepalived/keepalived.conf << EOF
global_defs { 
   notification_email { 
     acassen@firewall.loc 
     failover@firewall.loc 
     sysadmin@firewall.loc 
   } 
   notification_email_from Alexandre.Cassen@firewall.loc  
   smtp_server 127.0.0.1 
   smtp_connect_timeout 30 
   router_id NGINX_BACKUP
} 

vrrp_script check_nginx {
    script "/etc/keepalived/check_nginx.sh" # 判断返回状态码
}

vrrp_instance VI_1 { 
    state BACKUP2
    interface ens33  # 修改为实际网卡名
    virtual_router_id 3 # 2 VRRP 路由 ID实例，每个实例是唯一的 
    priority 80    # 优先级，备服务器设置 90，80
    advert_int 1    # 指定VRRP 心跳包通告间隔时间
    authentication { 
        auth_type PASS      
        auth_pass 1111 
    }  
    # 虚拟IP
    virtual_ipaddress { 
        192.168.1.88/24  #虚拟ip
    } 
    track_script {
        check_nginx
    } 
}
EOF

#配置nginx 36443端口检测脚本

#全部master

cat > /etc/keepalived/check_nginx.sh  << "EOF"
#!/bin/bash
code=$(curl -k https://127.0.0.1:36443/version -s -o /dev/null -w %{http_code})

if [ "$code" -ne 200 ];then
    exit 1
else
    exit 0
fi
EOF
chmod +x /etc/keepalived/check_nginx.sh

systemctl daemon-reload
systemctl start nginx
systemctl start keepalived
systemctl enable nginx
systemctl enable keepalived

#部署master1的etcd，二进制文件包部署。

准备cfssl证书生成工具
wget https://pkg.cfssl.org/R1.2/cfssl_linux-amd64
wget https://pkg.cfssl.org/R1.2/cfssljson_linux-amd64
wget https://pkg.cfssl.org/R1.2/cfssl-certinfo_linux-amd64
chmod +x cfssl_linux-amd64 cfssljson_linux-amd64 cfssl-certinfo_linux-amd64
mv cfssl_linux-amd64 /usr/local/bin/cfssl
mv cfssljson_linux-amd64 /usr/local/bin/cfssljson
mv cfssl-certinfo_linux-amd64 /usr/bin/cfssl-certinfo

#----下载可能会很慢--------------------------------
#我这里有准备我直接使用下载好的。
tar zxvf cfssl.tar.gz  -C /usr/bin/
--------------------------------------------------
mkdir -p ~/etcd_tls
cd ~/etcd_tls
#[root@k8s-master1 etcd_tls]#
cat > ca-config.json << EOF
{
  "signing": {
    "default": {
      "expiry": "87600h"
    },
    "profiles": {
      "www": {
         "expiry": "87600h",
         "usages": [
            "signing",
            "key encipherment",
            "server auth",
            "client auth"
        ]
      }
    }
  }
}
EOF
#[root@k8s-master1 etcd_tls]#
cat > ca-csr.json << EOF
{
    "CN": "etcd CA",
    "key": {
        "algo": "rsa",
        "size": 2048
    },
    "names": [
        {
            "C": "CN",
            "L": "Beijing",
            "ST": "Beijing"
        }
    ]
}
EOF

cfssl gencert -initca ca-csr.json | cfssljson -bare ca -

#[root@k8s-master1 etcd_tls]#
cat > server-csr.json << EOF
{
    "CN": "etcd",
    "hosts": [
    "192.168.1.201",
    "192.168.1.202",
    "192.168.1.203"
    ],
    "key": {
        "algo": "rsa",
        "size": 2048
    },
    "names": [
        {
            "C": "CN",
            "L": "BeiJing",
            "ST": "BeiJing"
        }
    ]
}
EOF

cfssl gencert -ca=ca.pem -ca-key=ca-key.pem -config=ca-config.json -profile=www \
server-csr.json | cfssljson -bare server

#下载etcd二进制包，https://github.com/etcd-io/etcd/releases/download/v3.4.9/etcd-v3.4.9-linux-amd64.tar.gz

cd ~
wgt https://github.com/etcd-io/etcd/releases/download/v3.4.9/etcd-v3.4.9-linux-amd64.tar.gz

mkdir /opt/etcd/{bin,cfg,ssl} -p
tar zxvf etcd-v3.4.9-linux-amd64.tar.gz
mv etcd-v3.4.9-linux-amd64/{etcd,etcdctl} /opt/etcd/bin/


[root@k8s-master1 ~]#
cat > /opt/etcd/cfg/etcd.conf << EOF
#[Member]
ETCD_NAME="etcd-1"
ETCD_DATA_DIR="/var/lib/etcd/default.etcd"
ETCD_LISTEN_PEER_URLS="https://192.168.1.201:2380"
ETCD_LISTEN_CLIENT_URLS="https://192.168.1.201:2379"

#[Clustering]
ETCD_INITIAL_ADVERTISE_PEER_URLS="https://192.168.1.201:2380"
ETCD_ADVERTISE_CLIENT_URLS="https://192.168.1.201:2379"
ETCD_INITIAL_CLUSTER="etcd-1=https://192.168.1.201:2380,etcd-2=https://192.168.1.202:2380,etcd-3=https://192.168.1.203:2380"
ETCD_INITIAL_CLUSTER_TOKEN="etcd-cluster"
ETCD_INITIAL_CLUSTER_STATE="new"
EOF

cp ~/etcd_tls/ca*pem ~/etcd_tls/server*pem /opt/etcd/ssl/

#配置etcd systemctl管理和集群

[root@k8s-master1 ~]#
cat > /usr/lib/systemd/system/etcd.service << EOF
[Unit]
Description=Etcd Server
After=network.target
After=network-online.target
Wants=network-online.target

[Service]
Type=notify
EnvironmentFile=/opt/etcd/cfg/etcd.conf
ExecStart=/opt/etcd/bin/etcd \
--cert-file=/opt/etcd/ssl/server.pem \
--key-file=/opt/etcd/ssl/server-key.pem \
--trusted-ca-file=/opt/etcd/ssl/ca.pem \
--peer-cert-file=/opt/etcd/ssl/server.pem \
--peer-key-file=/opt/etcd/ssl/server-key.pem \
--peer-trusted-ca-file=/opt/etcd/ssl/ca.pem \
--logger=zap
Restart=on-failure
LimitNOFILE=65536

[Install]
WantedBy=multi-user.target
EOF

scp -r /opt/etcd/ root@192.168.1.202:/opt/
scp /usr/lib/systemd/system/etcd.service root@192.168.1.202:/usr/lib/systemd/system/
scp -r /opt/etcd/ root@192.168.1.203:/opt/
scp /usr/lib/systemd/system/etcd.service root@192.168.1.203:/usr/lib/systemd/system/

[root@k8s-master2 ~]#

cat > /opt/etcd/cfg/etcd.conf  << EOF 
#[Member]
ETCD_NAME="etcd-2"
ETCD_DATA_DIR="/var/lib/etcd/default.etcd"
ETCD_LISTEN_PEER_URLS="https://192.168.1.202:2380"
ETCD_LISTEN_CLIENT_URLS="https://192.168.1.202:2379"

#[Clustering]
ETCD_INITIAL_ADVERTISE_PEER_URLS="https://192.168.1.202:2380"
ETCD_ADVERTISE_CLIENT_URLS="https://192.168.1.202:2379"
ETCD_INITIAL_CLUSTER="etcd-1=https://192.168.1.201:2380,etcd-2=https://192.168.1.202:2380,etcd-3=https://192.168.1.203:2380"
ETCD_INITIAL_CLUSTER_TOKEN="etcd-cluster"
ETCD_INITIAL_CLUSTER_STATE="new"
EOF


[root@k8s-master3 ~]#
cat > /opt/etcd/cfg/etcd.conf  << EOF 
#[Member]
ETCD_NAME="etcd-3"
ETCD_DATA_DIR="/var/lib/etcd/default.etcd"
ETCD_LISTEN_PEER_URLS="https://192.168.1.203:2380"
ETCD_LISTEN_CLIENT_URLS="https://192.168.1.203:2379"

#[Clustering]
ETCD_INITIAL_ADVERTISE_PEER_URLS="https://192.168.1.203:2380"
ETCD_ADVERTISE_CLIENT_URLS="https://192.168.1.203:2379"
ETCD_INITIAL_CLUSTER="etcd-1=https://192.168.1.201:2380,etcd-2=https://192.168.1.202:2380,etcd-3=https://192.168.1.203:2380"
ETCD_INITIAL_CLUSTER_TOKEN="etcd-cluster"
ETCD_INITIAL_CLUSTER_STATE="new"
EOF

#全部master节点执行
systemctl daemon-reload
systemctl start etcd
systemctl enable etcd


[root@k8s-master1 ~]# 验证etcd集群状态
ETCDCTL_API=3 /opt/etcd/bin/etcdctl --cacert=/opt/etcd/ssl/ca.pem --cert=/opt/etcd/ssl/server.pem --key=/opt/etcd/ssl/server-key.pem --endpoints="https://192.168.1.201:2379,https://192.168.1.202:2379,https://192.168.1.203:2379" endpoint health --write-out=table

+----------------------------+--------+-------------+-------+
|          ENDPOINT          | HEALTH |    TOOK     | ERROR |
+----------------------------+--------+-------------+-------+
| https://192.168.1.201:2379 |   true | 34.022926ms |       |
| https://192.168.1.203:2379 |   true | 34.623155ms |       |
| https://192.168.1.202:2379 |   true | 36.930235ms |       |
+----------------------------+--------+-------------+-------+

#安装kubeadm，kubelet和kubectl

yum list --showduplicates kubeadm #列出版本，我选择1.23.0
#3台master和node节点都安装
yum install -y kubelet-1.23.0 kubeadm-1.23.0 kubectl-1.23.0
systemctl enable kubelet

#初始化master1

[root@k8s-master1 ~]#
cat > kubeadm-config.yaml << EOF
apiVersion: kubeadm.k8s.io/v1beta2
bootstrapTokens:
- groups:
  - system:bootstrappers:kubeadm:default-node-token
  token: 9037x2.tcaqnpaqkra9vsbw
  ttl: 24h0m0s
  usages:
  - signing
  - authentication
kind: InitConfiguration
localAPIEndpoint:
  advertiseAddress: 192.168.1.201
  bindPort: 6443
nodeRegistration:
  criSocket: /var/run/dockershim.sock
  name: k8s-master1
  taints:
  - effect: NoSchedule
    key: node-role.kubernetes.io/master
---
apiServer:
  certSANs:  # 包含所有Master/LB/VIP IP，为了方便后期扩容可以多写几个预留的IP。
  - k8s-master1
  - k8s-master2
  - k8s-master3
  - 192.168.1.201
  - 192.168.1.202
  - 192.168.1.203
  - 192.168.1.88
  - 127.0.0.1
  extraArgs:
    authorization-mode: Node,RBAC
  timeoutForControlPlane: 4m0s
apiVersion: kubeadm.k8s.io/v1beta2
certificatesDir: /etc/kubernetes/pki
clusterName: kubernetes
controlPlaneEndpoint: 192.168.1.88:36443 # 负载均衡虚拟IP（VIP）和端口
controllerManager: {}
dns:
  type: CoreDNS
etcd:
  external:  # 使用外部etcd
    endpoints:
    - https://192.168.1.201:2379 # etcd集群3个节点
    - https://192.168.1.202:2379
    - https://192.168.1.203:2379
    caFile: /opt/etcd/ssl/ca.pem # 连接etcd所需证书
    certFile: /opt/etcd/ssl/server.pem
    keyFile: /opt/etcd/ssl/server-key.pem
imageRepository: registry.aliyuncs.com/google_containers # 指定阿里云镜像仓库地址
kind: ClusterConfiguration
kubernetesVersion: v1.23.0 # K8s版本，与上面安装的一致
networking:
  dnsDomain: cluster.local
  podSubnet: 10.244.0.0/16  # Pod网络，与下面部署的CNI网络组件yaml中保持一致
  serviceSubnet: 10.96.0.0/12  # 集群内部虚拟网络，Pod统一访问入口
scheduler: {}
EOF

[root@k8s-master1 ~]# kubeadm init --config kubeadm-config.yaml

#记录以下2段加入集群命令
#加入mastser节点，现在不执行
  kubeadm join 192.168.1.88:36443 --token 9037x2.tcaqnpaqkra9vsbw \
	--discovery-token-ca-cert-hash sha256:4ddaaac6961b4ec8adef93529f76e53af5a31b182b24c4007835d5007064124a \
	--control-plane

#加入node节点
kubeadm join 192.168.1.88:36443 --token 9037x2.tcaqnpaqkra9vsbw \
	--discovery-token-ca-cert-hash sha256:4ddaaac6961b4ec8adef93529f76e53af5a31b182b24c4007835d5007064124a

#拷贝配置文件和证书

[root@k8s-master1 ~]#
mkdir -p $HOME/.kube
cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
chown $(id -u):$(id -g) $HOME/.kube/config
#kubectl get node
NAME          STATUS     ROLES                  AGE     VERSION
k8s-master1   NotReady   control-plane,master   7m48s   v1.23.0

scp -r /etc/kubernetes/pki/ 192.168.1.202:/etc/kubernetes/
scp -r /etc/kubernetes/pki/ 192.168.1.203:/etc/kubernetes/

[root@k8s-master2 ~]#
kubeadm join 192.168.1.88:36443 --token 9037x2.tcaqnpaqkra9vsbw \
	--discovery-token-ca-cert-hash sha256:4ddaaac6961b4ec8adef93529f76e53af5a31b182b24c4007835d5007064124a \
	--control-plane

mkdir -p $HOME/.kube
sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
sudo chown $(id -u):$(id -g) $HOME/.kube/config
kubectl get nodes
NAME          STATUS     ROLES                  AGE    VERSION
k8s-master1   NotReady   control-plane,master   7m3s   v1.23.0
k8s-master2   NotReady   control-plane,master   86s    v1.23.0


[root@k8s-master3 ~]#
kubeadm join 192.168.1.88:36443 --token 9037x2.tcaqnpaqkra9vsbw \
	--discovery-token-ca-cert-hash sha256:4ddaaac6961b4ec8adef93529f76e53af5a31b182b24c4007835d5007064124a \
	--control-plane

mkdir -p $HOME/.kube
sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
sudo chown $(id -u):$(id -g) $HOME/.kube/config
kubectl get nodes
NAME          STATUS     ROLES                  AGE     VERSION
k8s-master1   NotReady   control-plane,master   11m     v1.23.0
k8s-master2   NotReady   control-plane,master   5m58s   v1.23.0
k8s-master3   NotReady   control-plane,master   86s     v1.23.0

#node节点加入

[root@k8s-node1 ~]
kubeadm join 192.168.1.88:36443 --token 9037x2.tcaqnpaqkra9vsbw \
	--discovery-token-ca-cert-hash sha256:4ddaaac6961b4ec8adef93529f76e53af5a31b182b24c4007835d5007064124a
systemctl enable kubelet

[root@k8s-node2 ~]
kubeadm join 192.168.1.88:36443 --token 9037x2.tcaqnpaqkra9vsbw \
	--discovery-token-ca-cert-hash sha256:4ddaaac6961b4ec8adef93529f76e53af5a31b182b24c4007835d5007064124a
systemctl enable kubelet


[root@k8s-master1 ~]# kubectl get node
NAME          STATUS     ROLES                  AGE     VERSION
k8s-master1   NotReady   control-plane,master   35m     v1.23.0
k8s-master2   NotReady   control-plane,master   30m     v1.23.0
k8s-master3   NotReady   control-plane,master   25m     v1.23.0
k8s-node1     NotReady   <none>                 5m40s   v1.23.0
k8s-node2     NotReady   <none>                 17s     v1.23.0

#安装网络插件calico

#下载calico
wget https://docs.projectcalico.org/manifests/calico.yaml
[root@k8s-master1 ~]
kubectl apply -f calico.yaml

[root@k8s-master1 ~]# kubectl get pods -n kube-system  #查看进度
NAME                                     READY   STATUS    RESTARTS   AGE
calico-kube-controllers-d4bfdcb9-z8smn   1/1     Running   0          7m21s
calico-node-2m8mn                        1/1     Running   0          7m21s
calico-node-7htf2                        1/1     Running   0          7m21s
calico-node-psbsx                        1/1     Running   0          7m21s
calico-node-rs8hv                        1/1     Running   0          7m21s
calico-node-s6mlh                        1/1     Running   0          7m21s
coredns-6d8c4cb4d-vwpw5                  1/1     Running   0          52m
coredns-6d8c4cb4d-zlcjl                  1/1     Running   0          52m
kube-apiserver-k8s-master1               1/1     Running   0          52m
kube-apiserver-k8s-master2               1/1     Running   0          46m
kube-apiserver-k8s-master3               1/1     Running   0          42m
kube-controller-manager-k8s-master1      1/1     Running   0          52m
kube-controller-manager-k8s-master2      1/1     Running   0          46m
kube-controller-manager-k8s-master3      1/1     Running   0          42m
kube-proxy-9pd5s                         1/1     Running   0          22m
kube-proxy-mzqpg                         1/1     Running   0          16m
kube-proxy-pkml9                         1/1     Running   0          42m
kube-proxy-tw45x                         1/1     Running   0          52m
kube-proxy-x7gj6                         1/1     Running   0          46m
kube-scheduler-k8s-master1               1/1     Running   0          52m
kube-scheduler-k8s-master2               1/1     Running   0          46m
kube-scheduler-k8s-master3               1/1     Running   0          42m
[root@k8s-master1 ~]# kubectl get node
NAME          STATUS   ROLES                  AGE   VERSION
k8s-master1   Ready    control-plane,master   52m   v1.23.0
k8s-master2   Ready    control-plane,master   46m   v1.23.0
k8s-master3   Ready    control-plane,master   42m   v1.23.0
k8s-node1     Ready    <none>                 22m   v1.23.0
k8s-node2     Ready    <none>                 17m   v1.23.0

部署完毕，可以关闭master1节点的etcd，测试集群是否仍然能正常访问，这里就不测试了。
有部署问题可以联系我。

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kubeadm部署k8s高可用集群----傻瓜式教程--复制就能用

#操作系统Centos7.9
#基础环境：这里我选择3个master，2个work，1个vip对外访问。

#模板准备

#修改主机名和IP

#在3台主节点执行，安装nginx+keepalive

#keepalived配置

#配置nginx 36443端口检测脚本

#部署master1的etcd，二进制文件包部署。

#配置etcd systemctl管理和集群

#安装kubeadm，kubelet和kubectl

#初始化master1

#拷贝配置文件和证书

#node节点加入

#安装网络插件calico

网站公告

今日签到

热门文章

最新发布

kubeadm部署k8s高可用集群----傻瓜式教程--复制就能用

#操作系统Centos7.9 #基础环境：这里我选择3个master，2个work，1个vip对外访问。

#模板准备

#修改主机名和IP

#在3台主节点执行，安装nginx+keepalive

#keepalived配置

#配置nginx 36443端口检测脚本

#部署master1的etcd，二进制文件包部署。

#配置etcd systemctl管理和集群

#安装kubeadm，kubelet和kubectl

#初始化master1

#拷贝配置文件和证书

#node节点加入

#安装网络插件calico

网站公告

今日签到

热门文章

最新发布

#操作系统Centos7.9
#基础环境：这里我选择3个master，2个work，1个vip对外访问。