(next to the previous article, kubernetes multi node deployment)
k8s deployment planning (load balancing deployment):
load balancing
Nginx1:192.168.35.104/24
Nginx2:192.168.35.105/24
Master node
master1:192.168.35.100/24
master2:192.168.35.103/24
Node node
node1: 192.168.35.101/24
node2: 192.168.35.102/24
nginx installation and deployment
lb01 and lb02 operation
1. Turn off firewall
[root@localhost ~]# systemctl stop firewalld.service
[root@localhost ~]# setenforce 0
2. Install nginx service, copy nginx.sh and maintained.conf scripts to the home directory
[root@localhost ~]# ls
anaconda-ks.cfg keepalived.conf public video File Music
initial-setup-ks.cfg nginx.sh Template picture download desktop
3. Build the yum source environment of nginx
(1) Copy profile
[root@localhost ~]# vim nginx.sh
cat > /etc/yum.repos.d/nginx.repo << EOF
[nginx]
name=nginx repo
baseurl=http://nginx.org/packages/centos/7/$basearch/
gpgcheck=0 #Copy four lines
EOF
stream {log_format main '$remote_addr $upstream_addr - [$time_local] $status $upstream_bytes_sent';
access_log /var/log/nginx/k8s-access.log main;upstream k8s-apiserver {
server 10.0.0.3:6443;
server 10.0.0.8:6443;
}
server {
listen 6443;
proxy_pass k8s-apiserver;
}
}
(2) Create yum source, reload yum warehouse, and install nginx
[root@localhost ~]# vim /etc/yum.repos.d/nginx.repo
[nginx]
name=nginx repo
baseurl=http://nginx.org/packages/centos/7/$basearch/
gpgcheck=0[root@localhost ~]# yum list
[root@localhost ~]# yum install nginx -y
4. Add layer 4 forwarding
(1) Copy profile
[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 $upstream_bytes_sent';
access_log /var/log/nginx/k8s-access.log main;upstream k8s-apiserver {
server 10.0.0.3:6443;
server 10.0.0.8:6443;
}
server {
listen 6443;
proxy_pass k8s-apiserver;
}
} #Copy this paragraph
(2) Add profile and modify
[root@localhost ~]# vim /etc/nginx/nginx.conf
user nginx;
worker_processes 1;error_log /var/log/nginx/error.log warn;
pid /var/run/nginx.pid;
events {
worker_connections 1024;
}stream {
log_format main '$remote_addr $upstream_addr - [$time_local] $status $upstream_bytes_sent';
access_log /var/log/nginx/k8s-access.log main;upstream k8s-apiserver {
server 192.168.35.100:6443;
server 192.168.35.103:6443; #Just modify IP by master1 and master2 Address
}
server {
listen 6443;
proxy_pass k8s-apiserver;
}
}http {
include /etc/nginx/mime.types;
default_type application/octet-stream;log_format main '$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) Verify syntax for errors
[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) Modify the home page to distinguish, one master and one backup.
lb01 operation:
[root@localhost ~]# cd /usr/share/nginx/html/
[root@localhost html]# ls
50x.html index.html
[root@localhost html]# vim index.html/14 <h1>Welcome to master ginx!</h1>
lb02 operation:
[root@localhost ~]# cd /usr/share/nginx/html/
[root@localhost html]# ls
50x.html index.html
[root@localhost html]# vim index.html/14 <h1>Welcome to backup ginx!</h1>
(5) Open the service and visit the home page
lb01:
[root@localhost ~]# systemctl start nginx
Visit - http://192.168.35.104/
lb02:
[root@localhost ~]# systemctl start nginx
Visit - http://192.168.35.105/
keepalived installation and deployment
lb01 and lb02 operation
1. Install keepalived
[root@localhost ~]# yum install keepalived -y
2. Modify profile
[root@localhost ~]# ls
anaconda-ks.cfg kept.conf public video document music
Initial setup ks.cfg nginx.sh template picture download desktop
[root@localhost ~]# cp keepalived.conf /etc/keepalived/keepalived.conf
cp: overwrite "/ etc / preserved / preserved.conf"? yes
[root@localhost ~]# vim /etc/keepalived/keepalived.conf
Note: lb01 is the Master configuration as follows:
! Configuration File for keepalived
global_defs {
# Receiving email address
notification_email {
[email protected]
[email protected]
[email protected]
}
# Mailing address
notification_email_from [email protected]
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 route ID instance, each instance is unique
priority 100 # Priority, standby server setting 90
advert_int 1 # Specifies the notification interval of VRRP heartbeat package, 1 second by default
authentication {
auth_type PASS
auth_pass 1111
}
virtual_ipaddress {
192.168.35.200/24
}
track_script {
check_nginx
}
}
Note: lb02 is the Backup configuration as follows:
! Configuration File for keepalived
global_defs {
# Receiving email address
notification_email {
[email protected]
[email protected]
[email protected]
}
# Mailing address
notification_email_from [email protected]
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 route ID instance, each instance is unique
priority 90 # Priority, standby server setting 90
advert_int 1 # Specifies the notification interval of VRRP heartbeat package, 1 second by default
authentication {
auth_type PASS
auth_pass 1111
}
virtual_ipaddress {
192.168.35.200/24
}
track_script {
check_nginx
}
}
3. Make management script
[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. Give execution permission and open service
[root@localhost ~]# chmod +x /etc/nginx/check_nginx.sh
[root@localhost ~]# systemctl start keepalived
5. View address information
(1) View lb01 address information
[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 #Drift address in lb01 in
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) View lb02 address information
[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. Test failover
(1) Verify address drift (use pkill nginx in lb01, then use ip a in lb02 to view)
[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 Six 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 Month 0816:54:45 localhost.localdomain kill[13156]: -q, --queue <signal> ...2)
2 Month 0816:54:45 localhost.localdomain kill[13156]: -p, --pid ...Number
2 Month 0816:54:45 localhost.localdomain kill[13156]: -l, --list [=<signal>] ...call
2 Month 0816:54:45 localhost.localdomain kill[13156]: -L, --table ...value
2 Month 0816:54:45 localhost.localdomain kill[13156]: -h, --help Show this... Out
2 Month 0816:54:45 localhost.localdomain kill[13156]: -V, --version Output version... Out
2 Month 0816:54:45 localhost.localdomain kill[13156]: For more information, see kill(1).
2 Month 0816:54:45 localhost.localdomain systemd[1]: nginx.service: control...
2 Month 0816:54:45 localhost.localdomain systemd[1]: Unit nginx.service ent...
2 Month 0816:54:45 localhost.localdomain systemd[1]: nginx.service failed.
Hint: Some lines were ellipsized, use -l to show in full.[root@localhost ~]# systemctl status keepalived.service #The keepalived service is also closed, indicating that the check ﹣ nginx.sh in nginx takes effect
● keepalived.service - LVS and VRRP High Availability Monitor
Loaded: loaded (/usr/lib/systemd/system/keepalived.service; disabled; vendor preset: disabled)
Active: inactive (dead)2 Month 0816:39:26 localhost.localdomain Keepalived_vrrp[7319]: VRRP_Instan...
2 Month 0816:39:26 localhost.localdomain Keepalived_vrrp[7319]: Sending gra...
2 Month 0816:39:26 localhost.localdomain Keepalived_vrrp[7319]: Sending gra...
2 Month 0816:39:26 localhost.localdomain Keepalived_vrrp[7319]: Sending gra...
2 Month 0816:39:26 localhost.localdomain Keepalived_vrrp[7319]: Sending gra...
2 Month 0816:54:46 localhost.localdomain Keepalived[7317]: Stopping
2 Month 0816:54:46 localhost.localdomain systemd[1]: Stopping LVS and VRRP ...
2 Month 0816:54:46 localhost.localdomain Keepalived_vrrp[7319]: VRRP_Instan...
2 Month 0816:54:46 localhost.localdomain Keepalived_vrrp[7319]: VRRP_Instan...
2 Month 0816:54:47 localhost.localdomain systemd[1]: Stopped LVS and VRRP H...
Hint: Some lines were ellipsized, use -l to show in full.
Check the address at lb01:
[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
Check the address at lb02:
[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 #Shift address to lb02
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) Recovery operation (start nginx service before keepalived service in lb01)
[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 #The drift address is transferred back to lb01
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 site / usr/share/nginx/html
ping the virtual IP on the host to ensure that it can be pinged, indicating that it can be accessed
View index.html in lb01
[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>
<h1>Welcome to master ginx!</h1>
<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>
View index.html in lb01
[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>
<h1>Welcome to backup nginx!</h1>
<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>
I think the drift address is on lb01, so when I visit the drift address, the real nginx homepage should contain the master page
Node node binding VIP address
1. Modify the node configuration file unified 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#All changed to VIP address
server: https://192.168.35.200:6443
2. Replace to complete direct self test
[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. Restart service
[root@localhost cfg]# systemctl restart kubelet.service
[root@localhost cfg]# systemctl restart kube-proxy.service
4. View the k8s log of nginx on lb01
[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
Operate on master01
1. Test create 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. View status
[root@localhost k8s]# kubectl get pods
NAME READY STATUS RESTARTS AGE
nginx-dbddb74b8-cfggf 1/1 0 ContainerCreating 64s #BeingCreate medium
[root@localhost k8s]# kubectl get pods
NAME READY STATUS RESTARTS AGE
nginx-dbddb74b8-cfggf 1/1 Running 0 74s #EstablishDone, running
3. Attention to log problems (unable to view, error will be reported)
[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)
terms of settlement:
(1) Authority promotion
[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) Checking the log
[root@localhost k8s]# kubectl logs nginx-dbddb74b8-cfggf
//No error will be reported, but no log will be generated due to no access
4. View pod network
[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. Operation on the node node of the corresponding network segment can be directly accessed
[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>
<h1>Welcome to nginx!</h1>
<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. Access will generate logs, and return to the master01 operation
[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" "-"
Unwilling to be ordinary 195 original articles published, 64 praised, 7880 visited Private letter follow