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kubernetes二進制負載均衡部署如何實現

發布時間：2020-04-16 16:01:08 來源：億速云 閱讀：352 作者：三月 欄目：云計算

下文給大家帶來kubernetes二進制負載均衡部署如何實現，希望能夠給大家在實際運用中帶來一定的幫助，負載均衡涉及的東西比較多，理論也不多，網上有很多書籍，今天我們就用億速云在行業內累計的經驗來做一個解答。


實驗環境：

負載均衡
Nginx1:192.168.35.104/24
Nginx2:192.168.35.105/24

Master節點
master1:192.168.35.100/24
master2:192.168.35.103/24

Node節點
node1：192.168.35.101/24
node2：192.168.35.102/24

nginx安裝部署

lb01和lb02操作

1、關閉防火墻
[root@localhost ~]# systemctl stop firewalld.service 
[root@localhost ~]# setenforce 0
2、安裝nginx服務，把nginx.sh和keepalived.conf腳本拷貝到家目錄
[root@localhost ~]# ls
anaconda-ks.cfg       keepalived.conf  公共  視頻  文檔  音樂
initial-setup-ks.cfg  nginx.sh         模板  圖片  下載  桌面
3、構建nginx的yum源環境
（1）復制配置文件
[root@localhost ~]# vim nginx.sh

cat > /etc/yum.repos.d/nginx.repo << EOF
[nginx]
name=nginx repo
baseurl=http://nginx.org/packages/centos/7/$basearch/
gpgcheck=0                                    #復制四行內容
EOF

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 10.0.0.3:6443;
        server 10.0.0.8:6443;
    }
    server {
                listen 6443;
                proxy_pass k8s-apiserver;
    }
    }
（2）創建yum源，重新加載yum倉庫，并安裝nginx
[root@localhost ~]# vim /etc/yum.repos.d/nginx.repo

[nginx]
name=nginx repo
baseurl=http://nginx.org/packages/centos/7/$basearch/
gpgcheck=0

[root@localhost ~]# yum list

[root@localhost ~]# yum install nginx -y
4、添加四層轉發
（1）復制配置文件
[root@localhost ~]# vim nginx.sh

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

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 10.0.0.3:6443;
        server 10.0.0.8:6443;
    }
    server {
                listen 6443;
                proxy_pass k8s-apiserver;
    }
    }                          #復制此段內容
（2）添加配置文件并修改
[root@localhost ~]# vim /etc/nginx/nginx.conf

user  nginx;
worker_processes  1;

error_log  /var/log/nginx/error.log warn;
pid        /var/run/nginx.pid;

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 192.168.35.100:6443;
        server 192.168.35.103:6443;                  #只需修改IP為master1和master2的地址      
    }
    server {
                listen 6443;
                proxy_pass k8s-apiserver;
    }
    }

http {
    include       /etc/nginx/mime.types;
    default_type  application/octet-stream;

    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;

    keepalive_timeout  65;

    #gzip  on;

    include /etc/nginx/conf.d/*.conf;
}
（3）驗證語法是否錯誤
[root@localhost ~]# nginx -t
nginx: the configuration file /etc/nginx/nginx.conf syntax is ok
nginx: configuration file /etc/nginx/nginx.conf test is successful
（4）修改首頁，進行區分，一個master，一個backup。
lb01操作：
[root@localhost ~]# cd /usr/share/nginx/html/
[root@localhost html]# ls
50x.html  index.html
[root@localhost html]# vim index.html 

/14 <h3>Welcome to master ginx!</h3>
lb02操作：
[root@localhost ~]# cd /usr/share/nginx/html/
[root@localhost html]# ls
50x.html  index.html
[root@localhost html]# vim index.html 

/14 <h3>Welcome to backup ginx!</h3>
（5）開啟服務，并訪問首頁
lb01：
[root@localhost ~]# systemctl start nginx
用瀏覽器訪問http://192.168.35.104/

kubernetes二進制負載均衡部署如何實現

lb02：
[root@localhost ~]# systemctl start nginx
用瀏覽器訪問http://192.168.35.105/

kubernetes二進制負載均衡部署如何實現

keepalived安裝部署

lb01和lb02操作：
1、安裝keepalived
[root@localhost ~]# yum install keepalived -y
2、修改配置文件
[root@localhost ~]# ls
anaconda-ks.cfg       keepalived.conf  公共  視頻  文檔  音樂
initial-setup-ks.cfg  nginx.sh         模板  圖片  下載  桌面
[root@localhost ~]# cp keepalived.conf /etc/keepalived/keepalived.conf
cp：是否覆蓋"/etc/keepalived/keepalived.conf"？ yes

[root@localhost ~]# vim /etc/keepalived/keepalived.conf 
lb01是Master配置如下：
! Configuration File for keepalived

global_defs {
   # 接收郵件地址
   notification_email {
     acassen@firewall.loc
     failover@firewall.loc
     sysadmin@firewall.loc
   }
   # 郵件發送地址
   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/nginx/check_nginx.sh"
}

vrrp_instance VI_1 {
    state MASTER 
    interface ens33
    virtual_router_id 51 # VRRP 路由 ID實例，每個實例是唯一的
    priority 100    # 優先級，備服務器設置 90  
    advert_int 1    # 指定VRRP 心跳包通告間隔時間，默認1秒
    authentication {  
        auth_type PASS
        auth_pass 1111
    }   
    virtual_ipaddress {
        192.168.35.200/24
    }
    track_script {
        check_nginx
    }
}
lb02是Backup配置如下：
! Configuration File for keepalived

global_defs {
   # 接收郵件地址
   notification_email {
     acassen@firewall.loc
     failover@firewall.loc
     sysadmin@firewall.loc
   }
   # 郵件發送地址
   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/nginx/check_nginx.sh"
}

vrrp_instance VI_1 {
    state BACKUP 
    interface ens33
    virtual_router_id 51 # VRRP 路由 ID實例，每個實例是唯一的
    priority 90    # 優先級，備服務器設置 90  
    advert_int 1    # 指定VRRP 心跳包通告間隔時間，默認1秒
    authentication {  
        auth_type PASS
        auth_pass 1111
    }   
    virtual_ipaddress {
        192.168.35.200/24
    }
    track_script {
        check_nginx
    }
}
3、制作管理腳本
[root@localhost ~]# vim /etc/nginx/check_nginx.sh

count=$(ps -ef |grep nginx |egrep -cv "grep|$$")

if [ "$count" -eq 0 ];then
        systemctl stop keepalived
fi
4、賦予執行權限并開啟服務
[root@localhost ~]# chmod +x /etc/nginx/check_nginx.sh
[root@localhost ~]# systemctl start keepalived
5、查看地址信息
（1）查看lb01地址信息
[root@localhost ~]# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN qlen 1
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: ens33: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
    link/ether 00:0c:29:ba:e6:18 brd ff:ff:ff:ff:ff:ff
    inet 192.168.35.104/24 brd 192.168.35.255 scope global ens33
       valid_lft forever preferred_lft forever
    inet 192.168.35.200/24 scope global secondary ens33             #漂移地址在lb01中 
       valid_lft forever preferred_lft forever
    inet6 fe80::6ec5:6d7:1b18:466e/64 scope link tentative dadfailed 
       valid_lft forever preferred_lft forever
    inet6 fe80::2a3:b621:ca01:463e/64 scope link tentative dadfailed 
       valid_lft forever preferred_lft forever
    inet6 fe80::d4e2:ef9e:6820:145a/64 scope link tentative dadfailed 
       valid_lft forever preferred_lft forever
3: virbr0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN qlen 1000
    link/ether 52:54:00:14:39:99 brd ff:ff:ff:ff:ff:ff
    inet 192.168.122.1/24 brd 192.168.122.255 scope global virbr0
       valid_lft forever preferred_lft forever
4: virbr0-nic: <BROADCAST,MULTICAST> mtu 1500 qdisc pfifo_fast master virbr0 state DOWN qlen 1000
    link/ether 52:54:00:14:39:99 brd ff:ff:ff:ff:ff:ff
（2）查看lb02地址信息
[root@localhost ~]# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN qlen 1
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: ens33: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
    link/ether 00:0c:29:1d:ec:b0 brd ff:ff:ff:ff:ff:ff
    inet 192.168.35.105/24 brd 192.168.35.255 scope global ens33
       valid_lft forever preferred_lft forever
    inet6 fe80::6ec5:6d7:1b18:466e/64 scope link tentative dadfailed 
       valid_lft forever preferred_lft forever
    inet6 fe80::2a3:b621:ca01:463e/64 scope link tentative dadfailed 
       valid_lft forever preferred_lft forever
    inet6 fe80::d4e2:ef9e:6820:145a/64 scope link tentative dadfailed 
       valid_lft forever preferred_lft forever
3: virbr0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN qlen 1000
    link/ether 52:54:00:14:39:99 brd ff:ff:ff:ff:ff:ff
    inet 192.168.122.1/24 brd 192.168.122.255 scope global virbr0
       valid_lft forever preferred_lft forever
4: virbr0-nic: <BROADCAST,MULTICAST> mtu 1500 qdisc pfifo_fast master virbr0 state DOWN qlen 1000
    link/ether 52:54:00:14:39:99 brd ff:ff:ff:ff:ff:ff
6、測試故障轉移切換
（1）驗證地址漂移（lb01中使用pkill nginx，再在lb02中使用ip a 查看）
[root@localhost ~]# pkill nginx
[root@localhost ~]# systemctl status nginx
● nginx.service - nginx - high performance web server
   Loaded: loaded (/usr/lib/systemd/system/nginx.service; disabled; vendor preset: disabled)
   Active: failed (Result: exit-code) since 六 2020-02-08 16:54:45 CST; 11s ago
     Docs: http://nginx.org/en/docs/
  Process: 13156 ExecStop=/bin/kill -s TERM $MAINPID (code=exited, status=1/FAILURE)
 Main PID: 6930 (code=exited, status=0/SUCCESS)

2月 08 16:54:45 localhost.localdomain kill[13156]: -q, --queue <信號>   …2)
2月 08 16:54:45 localhost.localdomain kill[13156]: -p, --pid            …號
2月 08 16:54:45 localhost.localdomain kill[13156]: -l, --list [=<信號>] …稱
2月 08 16:54:45 localhost.localdomain kill[13156]: -L, --table          …值
2月 08 16:54:45 localhost.localdomain kill[13156]: -h, --help     顯示此…出
2月 08 16:54:45 localhost.localdomain kill[13156]: -V, --version  輸出版…出
2月 08 16:54:45 localhost.localdomain kill[13156]: 更多信息請參閱 kill(1)。
2月 08 16:54:45 localhost.localdomain systemd[1]: nginx.service: control...
2月 08 16:54:45 localhost.localdomain systemd[1]: Unit nginx.service ent...
2月 08 16:54:45 localhost.localdomain systemd[1]: nginx.service failed.
Hint: Some lines were ellipsized, use -l to show in full.

[root@localhost ~]# systemctl status keepalived.service             #keepalived服務也隨之關閉，說明nginx中的check_nginx.sh生效
● keepalived.service - LVS and VRRP High Availability Monitor
   Loaded: loaded (/usr/lib/systemd/system/keepalived.service; disabled; vendor preset: disabled)
   Active: inactive (dead)

2月 08 16:39:26 localhost.localdomain Keepalived_vrrp[7319]: VRRP_Instan...
2月 08 16:39:26 localhost.localdomain Keepalived_vrrp[7319]: Sending gra...
2月 08 16:39:26 localhost.localdomain Keepalived_vrrp[7319]: Sending gra...
2月 08 16:39:26 localhost.localdomain Keepalived_vrrp[7319]: Sending gra...
2月 08 16:39:26 localhost.localdomain Keepalived_vrrp[7319]: Sending gra...
2月 08 16:54:46 localhost.localdomain Keepalived[7317]: Stopping
2月 08 16:54:46 localhost.localdomain systemd[1]: Stopping LVS and VRRP ...
2月 08 16:54:46 localhost.localdomain Keepalived_vrrp[7319]: VRRP_Instan...
2月 08 16:54:46 localhost.localdomain Keepalived_vrrp[7319]: VRRP_Instan...
2月 08 16:54:47 localhost.localdomain systemd[1]: Stopped LVS and VRRP H...
Hint: Some lines were ellipsized, use -l to show in full.
在lb01查看地址：
[root@localhost ~]# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN qlen 1
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: ens33: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
    link/ether 00:0c:29:ba:e6:18 brd ff:ff:ff:ff:ff:ff
    inet 192.168.35.104/24 brd 192.168.35.255 scope global ens33
       valid_lft forever preferred_lft forever
    inet6 fe80::6ec5:6d7:1b18:466e/64 scope link tentative dadfailed 
       valid_lft forever preferred_lft forever
    inet6 fe80::2a3:b621:ca01:463e/64 scope link tentative dadfailed 
       valid_lft forever preferred_lft forever
    inet6 fe80::d4e2:ef9e:6820:145a/64 scope link tentative dadfailed 
       valid_lft forever preferred_lft forever
3: virbr0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN qlen 1000
    link/ether 52:54:00:14:39:99 brd ff:ff:ff:ff:ff:ff
    inet 192.168.122.1/24 brd 192.168.122.255 scope global virbr0
       valid_lft forever preferred_lft forever
4: virbr0-nic: <BROADCAST,MULTICAST> mtu 1500 qdisc pfifo_fast master virbr0 state DOWN qlen 1000
    link/ether 52:54:00:14:39:99 brd ff:ff:ff:ff:ff:ff
在lb02查看地址：
[root@localhost ~]# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN qlen 1
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: ens33: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
    link/ether 00:0c:29:1d:ec:b0 brd ff:ff:ff:ff:ff:ff
    inet 192.168.35.105/24 brd 192.168.35.255 scope global ens33
       valid_lft forever preferred_lft forever
    inet 192.168.35.200/24 scope global secondary ens33                #漂移地址轉移到lb02中
       valid_lft forever preferred_lft forever
    inet6 fe80::6ec5:6d7:1b18:466e/64 scope link tentative dadfailed 
       valid_lft forever preferred_lft forever
    inet6 fe80::2a3:b621:ca01:463e/64 scope link tentative dadfailed 
       valid_lft forever preferred_lft forever
    inet6 fe80::d4e2:ef9e:6820:145a/64 scope link tentative dadfailed 
       valid_lft forever preferred_lft forever
3: virbr0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN qlen 1000
    link/ether 52:54:00:14:39:99 brd ff:ff:ff:ff:ff:ff
    inet 192.168.122.1/24 brd 192.168.122.255 scope global virbr0
       valid_lft forever preferred_lft forever
4: virbr0-nic: <BROADCAST,MULTICAST> mtu 1500 qdisc pfifo_fast master virbr0 state DOWN qlen 1000
    link/ether 52:54:00:14:39:99 brd ff:ff:ff:ff:ff:ff
（2）恢復操作（在lb01中先啟動nginx服務，再啟動keepalived服務）
[root@localhost ~]# systemctl start nginx
[root@localhost ~]# systemctl start keepalived.service 
[root@localhost ~]# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN qlen 1
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: ens33: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
    link/ether 00:0c:29:ba:e6:18 brd ff:ff:ff:ff:ff:ff
    inet 192.168.35.104/24 brd 192.168.35.255 scope global ens33
       valid_lft forever preferred_lft forever
    inet 192.168.35.200/24 scope global secondary ens33               #漂移地址又轉移回lb01中
       valid_lft forever preferred_lft forever
    inet6 fe80::6ec5:6d7:1b18:466e/64 scope link tentative dadfailed 
       valid_lft forever preferred_lft forever
    inet6 fe80::2a3:b621:ca01:463e/64 scope link tentative dadfailed 
       valid_lft forever preferred_lft forever
    inet6 fe80::d4e2:ef9e:6820:145a/64 scope link tentative dadfailed 
       valid_lft forever preferred_lft forever
3: virbr0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN qlen 1000
    link/ether 52:54:00:14:39:99 brd ff:ff:ff:ff:ff:ff
    inet 192.168.122.1/24 brd 192.168.122.255 scope global virbr0
       valid_lft forever preferred_lft forever
4: virbr0-nic: <BROADCAST,MULTICAST> mtu 1500 qdisc pfifo_fast master virbr0 state DOWN qlen 1000
    link/ether 52:54:00:14:39:99 brd ff:ff:ff:ff:ff:ff
（3）nginx站點/usr/share/nginx/html
在宿主機上ping虛擬IP，保證可以ping通，說明可以去進行訪問

kubernetes二進制負載均衡部署如何實現

在lb01查看index.html
[root@localhost ~]# cat /usr/share/nginx/html/index.html 
<!DOCTYPE html>
<html>
<head>
<title>Welcome to nginx!</title>
<style>
    body {
        width: 35em;
        margin: 0 auto;
        font-family: Tahoma, Verdana, Arial, sans-serif;
    }
</style>
</head>
<body>
<h3>Welcome to master ginx!</h3>
<p>If you see this page, the nginx web server is successfully installed and
working. Further configuration is required.</p>

<p>For online documentation and support please refer to
<a href="http://nginx.org/">nginx.org</a>.<br/>
Commercial support is available at
<a href="http://nginx.com/">nginx.com</a>.</p>

<p><em>Thank you for using nginx.</em></p>
</body>
</html>

在lb01查看index.html

[root@localhost ~]# cat /usr/share/nginx/html/index.html 
<!DOCTYPE html>
<html>
<head>
<title>Welcome to nginx!</title>
<style>
    body {
        width: 35em;
        margin: 0 auto;
        font-family: Tahoma, Verdana, Arial, sans-serif;
    }
</style>
</head>
<body>
<h3>Welcome to backup nginx!</h3>
<p>If you see this page, the nginx web server is successfully installed and
working. Further configuration is required.</p>

<p>For online documentation and support please refer to
<a href="http://nginx.org/">nginx.org</a>.<br/>
Commercial support is available at
<a href="http://nginx.com/">nginx.com</a>.</p>

<p><em>Thank you for using nginx.</em></p>
</body>
</html>
因為漂移地址是在lb01上，所以訪問漂移地址時現實的nginx首頁應該是包含master的

kubernetes二進制負載均衡部署如何實現

node節點綁定VIP地址

1、修改node節點配置文件統一VIP（bootstrap.kubeconfig,kubelet.kubeconfig）
[root@localhost ~]# vim /opt/kubernetes/cfg/bootstrap.kubeconfig
[root@localhost ~]# vim /opt/kubernetes/cfg/kubelet.kubeconfig
[root@localhost ~]# vim /opt/kubernetes/cfg/kube-proxy.kubeconfig

#全部都改為VIP地址

server: https://192.168.35.200:6443
2、替換完成直接自檢
[root@localhost ~]# cd /opt/kubernetes/cfg/

[root@localhost cfg]# grep 200 *
bootstrap.kubeconfig:    server: https://192.168.35.200:6443
kubelet.kubeconfig:    server: https://192.168.35.200:6443
kube-proxy.kubeconfig:    server: https://192.168.35.200:6443
3、重啟服務
[root@localhost cfg]# systemctl restart kubelet.service 
[root@localhost cfg]# systemctl restart kube-proxy.service 
4、在lb01上查看nginx的k8s日志
[root@localhost ~]# tail /var/log/nginx/k8s-access.log
192.168.35.102 192.168.35.100:6443 - [08/Feb/2020:17:42:00 +0800] 200 1119
192.168.35.102 192.168.35.103:6443 - [08/Feb/2020:17:42:00 +0800] 200 1121
192.168.35.101 192.168.35.100:6443 - [08/Feb/2020:17:42:14 +0800] 200 1121
192.168.35.101 192.168.35.100:6443 - [08/Feb/2020:17:42:14 +0800] 200 1121

在master01上操作

1、測試創建pod
[root@localhost k8s]# kubectl run nginx --image=nginx
kubectl run --generator=deployment/apps.v1beta1 is DEPRECATED and will be removed in a future version. Use kubectl create instead.
deployment.apps/nginx created
2、查看狀態
[root@localhost k8s]# kubectl get pods
NAME                    READY   STATUS    RESTARTS   AGE
nginx-dbddb74b8-cfggf   1/1        0     ContainerCreating     64s                #正在創建中
[root@localhost k8s]# kubectl get pods
NAME                    READY   STATUS    RESTARTS   AGE
nginx-dbddb74b8-cfggf   1/1     Running   0          74s                   #創建完成，運行中
3、注意日志問題（無法查看，會報錯）
[root@localhost k8s]# kubectl logs nginx-dbddb74b8-cfggf
Error from server (Forbidden): Forbidden (user=system:anonymous, verb=get, resource=nodes, subresource=proxy) ( pods/log nginx-dbddb74b8-cfggf)
解決辦法：
（1）權限提升
[root@localhost k8s]# kubectl create clusterrolebinding cluster-system-anonymous --clusterrole=cluster-admin --user=system:anonymous
clusterrolebinding.rbac.authorization.k8s.io/cluster-system-anonymous created
（2）在去進行日志查看
[root@localhost k8s]# kubectl logs nginx-dbddb74b8-cfggf

//并不會出現報錯，只是因為沒有去訪問，所以沒有產生日志
4、查看pod網絡
[root@localhost k8s]# kubectl get pods -o wide
NAME                    READY   STATUS    RESTARTS   AGE   IP            NODE             NOMINATED NODE
nginx-dbddb74b8-cfggf   1/1     Running   0          14m   172.17.45.2   192.168.35.101   <none>
5、在對應網段的node節點上操作可以直接訪問
[root@localhost cfg]# curl 172.17.45.2
<!DOCTYPE html>
<html>
<head>
<title>Welcome to nginx!</title>
<style>
    body {
        width: 35em;
        margin: 0 auto;
        font-family: Tahoma, Verdana, Arial, sans-serif;
    }
</style>
</head>
<body>
<h3>Welcome to nginx!</h3>
<p>If you see this page, the nginx web server is successfully installed and
working. Further configuration is required.</p>

<p>For online documentation and support please refer to
<a href="http://nginx.org/">nginx.org</a>.<br/>
Commercial support is available at
<a href="http://nginx.com/">nginx.com</a>.</p>

<p><em>Thank you for using nginx.</em></p>
</body>
</html>
6、訪問就會產生日志，回到master01操作
[root@localhost k8s]# kubectl logs nginx-dbddb74b8-cfggf
172.17.45.1 - - [08/Feb/2020:10:10:29 +0000] "GET / HTTP/1.1" 200 612 "-" "curl/7.29.0" "-"
看了以上關于kubernetes二進制負載均衡部署如何實現，如果大家還有什么地方需要了解的可以在億速云行業資訊里查找自己感興趣的或者找我們的專業技術工程師解答的，億速云技術工程師在行業內擁有十幾年的經驗了。億速云官網鏈接www.mlszssj.com

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