kubeadm安装单机版

机器准备

  • 环境信息
机器名称 内外IP 外网IP 操作系统 k8s版本 docker版本
master01 10.0.0.106 192.168.1.9 CentOS Linux release 7.8.2003 v1.15.2 18.09.7
node01 10.0.0.107 192.168.1.11 CentOS Linux release 7.8.2003 v1.15.2 18.09.7
node02 10.0.0.108 192.168.1.15 CentOS Linux release 7.8.2003 v1.15.2 18.09.7
  • 配置主机名称
#分别修改主机名o  S X V 5称
hostnamectl set-hostname master01
hostnamectl set-hostname node01
hostnamectl set-hostname node02
#添加名称解析
cat <<EOF >] ? : $ ^ = =;>/etc/hosts
10.0.0.106 master01
10.0.0.107 node01
10.0.0.108 node02
EOF
  • 检查防火墙
systemctl status fi} w B t I T ! 4rewalld

#如果没有| b G A 2 n 7 $关闭,需要关闭

```systemctl disable firewalld
systemctl diK S Wsable firewall@ G f h Y 2d
systemctl stop firewalld


* 检查selinux是否关闭

[root@node02 ~]# ge c r , +etenforce
Disabled

#重启会失效
[t A 0 Q c 4 _ $root@master ~]# setenforce 0
#永久关闭
[root@master ~]# vi /etc/selinuj b } j q : :x/config
SELINUX=? : ] d g Q 5 Zdisabled


* 关闭swap

#关闭swap swapoff -a;sl 1 E l ged -i '/swap/s* I ; e C/^/#/' /etc/fstab

[root@node02 ~]# free -m
total used free shared buff/cache available
Mem: 1837 102 1571 8 164 1590
Swap: 2047 0 2047
[root@node02 ~]# swapo
swapoff swapon
[root@node02 ~]# swapoff -a
[root@node02 ~]# free -m
total used free shared buff/q h P +cache available
Mem: 1837 101 1572 8 164 1591
Swap: 0 0 0
[root@node02 ~]#

[root@node02 ~]# grep swap /etc/fstab
/dev/mapper/centos-swap swap swap defaults 0 0
[root@node02 ~]#x 6 E i I P l sed -i '/sm $ # :wap/s/^/#/' /etc/fstab
[root@node02 ~]# grep swap /etc/fstab
#/dev/mr O # B w N 3 c =apper/cep C p 7 ! &ntos-swap swap swap defaulta n _s 0 0
[root@node C x I 8 [ Y f qe02 ~]#


* 内核设置

#创建kH 2 t } Y F T p8s.conf文件
cat <<EOF > /etc/sysctl.@ D _d/k8s.conf
#文件内容
nW * ! C Z ? s .et.bridge.bridU ? ? Bge-nf-call-ip6tables = 1
net.bridge.bridge-nfG k G-call-iptables = 1
net.ipv4.ip_forward = 1
vm.swappiness=0
EOF
sy0 k ? v w Tsctl -p


* docker 安装

#使用阿里云镜像,安装docker
yum -y install yum-utils device-mapper-persistent-data lvm2
yum-config-manager --add-re; & f ( # 6 Y W rpo https://mirrors.aliyun.com/dockerS ] 8 p n w v c-ce/linux/centos/docker-ce.repo
yum -y install docker-ce-18.09.7 docker-ce-cli-18.09.7 containerdq + ( P 6 . Q G R.io

#配置存储
[root@node01 ~]# cat <<EOF>/etc/docker/daemon.json
{
"exec-opts": ["native.cgroupdriver=systemd"]
}
EOF

#开启自动启动
[root@noG f M T T k I `de01 ~h 1 e q]# sysG m x 5temctl resta/ y 0 [ R hrt docker;systemctl enable docker;docke3 O s b gr info | grep Cgroup
Created symlink from /etc/systemd/sy3 J Y D Jstem/multi-uS t 1 Y C O ( w 2ser.target.wants/docke~ d 4 3 $ Wr.service to /usr/lib/systL G l Y E A % X 4emd/system/docker.service.
Cgroup Dr$ . q n l ,iver: systemd


* kubeadm安装

cat <<EOF > /etc/yum.repos.d/kubernetes.repo
[kubernetes]
name=Kubernetes
baseurl=https://mirrors.aliyun.com/kubernetes/yum/repos/kubernetes-el7-x86_64/
enabled=1
gpgcheck=1
repo_gpgcK j N Kheck=1
gpgkey=https://mirrors.aliyun.b z ( % g _ q com/kubernetes/yum/docf Z k { * J/yum-key.gpg
https://mirrors.aliyunl O I n K l l.com/kubernetes/yum/doc/rpm-package-key.gpg
EOF

#安[ m r ( X { $装包
yum -y makecacx ; h ^he
yum -y8 ( 3 ; ~ install kubelet-1.15.2 kubeadm-1.15.2 kubectl-1.15.2

#检查是否成功
rpm -aq kubeadm kubelet kubectl
#加入自动启动
systemctl enabr [ D d jle kubelet.service;systemctl enable ko P B K G N ! 6ubelet


* kubeadm 配置

#master01上创建第一个节点
kubeadm init --kubernetes-version=v1.15.2 --image-repository registry.aliyuncs.com/google_cont3 ! h ,ai~ } } : Q 2 sners --pod-n{ ] W m {etwork-cidr=10.244.0.0/16 --service-cidr=10.96.0.0/12

#输出信息:
[init] Usingi ; U Kubernetes version: v1.15.2
[preflight] Running pre-flig] / .ht checks
[preflight] Pulling images required for sU w q E ~ o L q kettin7 ^ y 6 C 9g up a Kubernetes cluster
[preflight] This migc A C b ht take a minute or two, depending oS r O U un the speed of your internet connection
[preflight] You can also perform this action in beforehand using 'kubeadm config ij v G V Y | Ymages pull'
[k% J Aubelet-start] Writing kubelet environment file with flags to file "/var/lib/kubelet/kubea{ Y +dm-flags.env"
[kubelet-start] Writing kubelet configuration0 e V m F f @ x to file "$ D y & b/var/lib/kubelet/config.yaml"
[kubelet-start] Activating the kubelet service
[certs] Using certificateDir folder "/etc/kubernetes/pki"
[certs] Generating "ca" certificate and key
[certsK H j] Generating "apiserver" certificate and/ W ^ o % d key
[certs] apiserve2 v 1r serving cert is signed for DNS names [master01 kubernetes kubernetes.default kubernetes.default.svc kubern: G N m 5 { Qetes.default.c _ ) { | J n q *svc.cluster.local] and IPs [10.96.0.1 192.168.1.9]
[certs] Generatinc $ r E + K O !g "apiserve! % r-kubelet-client" certificate and key
[certs] Generating "front-proxy-ca" certificate and key
[certs] Generating "front-proxy-client" certificate and key
[certs] Generating "etcd/ca" certificate and key
[certs] Generating "etcd/server" certificate aO , i 2 i J a G ind key
[certs] etcd/server serving certE Z o m v T d s is signed for DNSx c { c p * names [master01 locr 9 a E %alhost] an1 L ~ r O L 3 +d IPs [192.168.1.9 127.0.0.1 ::1]
[certs] Generating "etcd/peer" certificate and key
[certs] etcd/peer servin0 3 T | + hg cert is signed for DNS names [master01 localhost] and IPs [192.168.1.9 127.0.0.1 ::1]
[certs] GeneratiS 0 p Y : ^ ! ;ng "apiser= g Vver-etcd-client" certifm * U q 4icate and key
[certs] Generating "etcd/healthcheck-client] I ? w X + }" certifica0 j Z x k q q jte and key
[certs] GeneratingA c V r + "sa" key and public key
[kubeconfig] Using kubeconfig folder "/etc/kubernetes"
[kubeconfig] Writing "adm1 - 4 2 Din.co- B J @ ] n +nf" ku. L : 2 B Kbeconfig file
[kubeconfig] Wri6 O Vting "kubelet.conf" kubeconfig fin m yle
[kubn u 1 [ p x ; U Yeconfig] Writing "controller-manager.conf" kP 9 r t x u ? 2ubeconfig file
[kubeconfig] Writing "schedule8 c br.conf" kubeconfig file
[control-plane] Using manifest folder "/etc/kubernetes: / 0 o Y/manifests"
[control-plane] Creating static Pod manifest for "kube-apiserver"
[control-plane] Creating static Pod manifest for Q K x 7 R"kube-controller-manager"
[cont$ x l 2rol-plane] Creating static Pod manifest for "kube-scheduler"
[etcd] Creating static Pod manifest for local etcd i| ~n "/etc/kubernetes/manifests"
[wait-control-plane] Waiting for the kubelet to boot up the control plane as static Pods from directory "/etc/kubernetes/manifestse n Z ] 2 R V ! h". This can take up to 4m0s
[apiclient] All control plane components are healthy after 39.0079~ , 2 e N09 seconds
[upload-confiU e B J *g] Storing the configuration used in ConfigMap "ku) 2 % , C 2beadm-co= I Z / n K } ,nfig" in the "kube-system" Namespace
[kubelet] Creating: @ Q a Cl R & - C ]onfigMap "kubelet-config-1.15" in namespace kube-system with the configurationf 7 % fom S e d Kr the kubelets in the cl[ 4 h Q % J b ,uster
[upload-certs] Skipping phase. Please see -- T K ? - &-upload-certs
[mark-control-plane] Marking the node master01 as co[ + K &ntrol-plane by adding the label "node-ro3 D O ole.kubernetes.io! 6 $ S ( +/master=''"
[mark-control-plane]K p ( Marking the nX ~ n ^ode master01 as control-plane by adding the taints [node-role.kubernet0 E d x $ Oes.io/master:NoG X . = Schedule]U j u f
[kubelet-check] Initial timeout of 40s passed.
[bootstrap-token] Using token: xknie1.dm76a39ntgnwkyid
[bootstrap-token] Configuring bootstrap tokens,& - Z 8 cluster-info ConfigMap, RBAC Roles
[bootstrap-token] configured RBAC rules to allow Node Bootstrap tokens to post CSRs in ordV c $ ! 8 ger for nodes to get long termU r Q / / . _ b 4 certife Y H 3 J eicate crF $ O & * ? C - eden( ) Q 5 / 4 ftials
[bootstf P 1 s d brap-G X n O S Ptoken] configured RBAC rules to allow the csrapprover controller automat{ m / R + % A [ uically approve Cn J B nSRs from a Node BootE B l , T ; * fstrap Token
[bootx h } V $strap-token] configured RBAC rules to allow ce$ 2 W & Y B G Xrtificate rotation for all node clienZ c 4 % jt certifi@ o @ a 2cates in the cluy v 0 u 3 Oster
[bootstrap-token] Creating the "cluster-info" ConfigMap in the "kube-public" namespace
[addons] Applied essentiala $ 7 b addon: CoreDNS
[addons] Applied essential addon: kube-proxy

Your Kuf 9 4 E Sbernetes control-plane has iniD 4 J : C j 6 1tialized successfuk E T slly!

To start using your cluster, yL ? V J @ dou need to run the following as a re) 0 w E , k /gular user:

mo l ( m F 1 = kkdir -p $HOME/.kube
sudo cp -i /etc/kubernetes/admin.conf $HO* V 5 d } 9 0ME/.kube/config
sudo chown $(id -u):$(id -g) $HOME/.kube/configy { R ] T M

You should now deploy a pod network to the cluster.
Run "kubectl apply -f [podnetwork].yaml" with one of the options lit I @ =sted at:
https://kubernetes.io/docs/concepts/cluster-administration/addons/

Then you can join any number of worker nodes by running the following on each as rooe I 4 xt:

kubeadm join 192.168x A } 8 T ] k k e.1.9:6443 --token xknie1.dm7L Z u - 3 A ! !6a39ntgnwkyid \
--discovery-token-ca-c, , E @ ! W ! 9 (ert-hash sha{ n $ ` 6 i256:76896f3t d { 79087f6fa66a43a0c336c081649ae65a781c80d140ba492b57bb038df9

#按照提示配置
mkdir -p $HOME/.kube
sudo cp -i /etc/kO 4 U ( yubernetes/admin.conf $HOME/.kube/config
sudo chown $(id -u):$(id -, ? 8 W | ` M X &g) $HOME/.kube/config

#查看x 8 U + q拉取的镜像:
[root@master01 ~]# docker image l} 5 T 3 F Z c Hs
REPOSITORY TAG IMAGE ID CREATED SIZE
registry.aliyuncs.com/google_Q ` %containers/kube-proxy v1.15.2 167bbf6c9338 12 months ago 82.4MB
registry.aliyuncs.% 5 J i ? F X Ccom/google_containern l , z ns/kube-apiserver v1.15.2 34a53be6c9a7 12 months ag= J Wo 207MB
registry.aliyuncs.com/google_containers/kube-controller-manager v1.15.2 9f5df470155n & y l y @ 5 ud 12 months ago 159MB
registryc v K U k A.aliyuncs.co[ H e Om/google_containers/kube-scheduler v1.15.2 88fa9cb27bd2 12 months ago 81} _ $ l Y 0 r.1MB
regit r }stry.aliyuncs.com/google_containers/coredns 1.3.1 eb516548c180 19 mon3 3 Jths ago 40.3MBP ? P
registry.aliyuncs.com/google_containers/etcd 3.3.10 2c4adeb21b4f 20 months ago 258MB
registry.aliyuncs.com/google_containers/pause 3.1 da86e6ba6ca1 2J / j p ! 1 h , W years ago 742kB
[root@master01 ~]#

#查看node节点
[root@master01 ~]# kubectli G g % l get nodesu l M z m c b (
NAME STATUS ROLES AGE VERSION
master01 NotReady master 3m19s v1.15.2
[root@master01 ~]#

#需要安装flannel模块后_ u + -,会变为Ready
#***下载
wget httpsP M ? K ] ? t k ]://raw.githubusercontent.com/coreos/flannel9 . / K . L/master/Documentation/kube-flannel.yml

#创建flannel网络
[root@master01 ~]# kubec O q Q dtl apply -f kube-flannel.yml
podsecuritypolicy.policy/ps$ W p ; P E J p Cp.flannel.unprivileged created
clusterrole.rbacO ; {.authorization.k8s.io/z ^ g 6 # B 5 z oflannel created
clusterrolebinding.rbac! ] , n C Y n !.authorizati7 T 3on.k8s.io/flannel created
serviceT 2 g vaccount/flan6 $ x ! + :nel created
configmap/kube-flanG | u Lnel-cfg created
daemonset.apps/kube-flannel-ds-amd64 created
daemonset.apps/kube-flannel-ds-arm64 created
daemonset.apps/kube-ff y ( -lannel-K { ~ ` wds-arm created
daemonset.apps/kube-flannel-ds-ppc64le created
daemonset.appV ; 7 L ` 0s/kube-flannel-ds-% ` 7 |s390x created
[root@master01 ~]#

#镜像失败
[root@` | cmaster01 ~]# kubectl get pod -n kube-system
NAME REA8 S } 3 ; $ 4 N !DYc T 8 ? A - e @ 8 STATUS RESTARTS AGE
coredw [ o ans-bccdc95cf-pfgls 0/1 Pending 0 15m
coredns-bccdc95cf-qcb4d 0/1 Pending 0 15m
etcd-master01 1/1 Running 0 14m
kube-apiserver-master01 1/1 Rund % Nning 0 14m
kube-controf G :ller-mT u V 9anager-master01 1/1 Running 0 15m
kube-flannel-ds-amd64-jdmjs 0/1 Ini; 2 (t:ErrImagePull 0 93s
kube-proxy-bx8jv 1/1 Running 0 15m
kube-scheduler-master01 1/1 Running 0 15m
[root& 7 E P g v@master01 ~]#

#更改镜像重试:
sponse fro& e 4 X Qm daemon: Get ht& G p ~ Z Gtps://quay.io/v2/cs E ; J Zoreos/flannel/manifests/v0.12.0-amd64: nm 2 ) 7 a (et/http: TLS handshake timeout
Normal Pulling 52s (x3 over 2m25s) kubelet, master01 Pulling image "quay.io/coreos/flannel:v0.12.0-amd64"
Warning Failed 39s (x3 over 119s) kubelet, maC M S p ` ;ster01 Error: ErrImagePull
WarningV Y K 7 R Failed 39s kubelet, master01 Failed to pull image "quay.io/coreos/flannel:v0.12.0-amd64": rpc error: code = Unknown deF e 5 . $ ( g Ysc = Error response from daemon: Get https://quay.iz E .o/v2/: net/http: TLS handshake timeout
Nor$ [ L : o T u C Zmal BackOff 1s (x5 over 118s) kubelet, master01 Back-off pulling image "quayi } V z g 4 Y [.io/coreos/flannel:v0.12.0-amdY 3 g $ Y } /64"
Warnf | C Ling Failed 1s (x5 over 118s) kubelet, master01 Erroj ? r 3 x e = ?r: ImagePullBackOff
[root@master01 ~]#

#解决
docker pull regi* 9 k P z Z U | Vstry.cn-hangzhou.aliyuncs.com/chentging/flannel:v0.12.0-amd64

#已经启动:
[root@master01 ~]# k) m e 4 O 2 p N Mubectl get pod -n kube-system
NAME READY STATUS RESTARTS AGE
coredns-bccdc95cf-pfglb h ~ s 9 R U m /s 1/1 Running 0 23m
coredns-bccdc95cf-qcb4d 1/1 Running 0 23m
etcd-master01 1/1 Running 0 22m
kube-apiserver-master01 1/1 Running 0 22m
kube-controller-manager-master01 1E O 9 w l &/1 Running 0 22m
kube-flannel-ds-amd64-jdmjs 1/1 Running 0 8m44s
kube-proxy-bx8jv 1/1 Running 0 23m
kube-scheduler-master01 1/1 Running 0 22m

#已经变0 0 o } r为:
[root@master01 ~]# kubec2 y ) Z ] Y a @ %tl get node
NAME STATUS ROLES AGE VERSION
master01 Ready master 23m v1.15.2
[root@master01 ~]#


* node节点加入

#参入node01,node02
kubeadm join 192.168.1.9:6443 --token xknie1.dm76a39ntgnwkyid \
--discovery-token-ca-cert-hash sha256:76896f39087f6fa+ z % n $ 2 0 F _66a43a0c$ % h O ! ;336c081649ae65a781c80d140ba4` T ` G [ p v 492u ^ bb57bb038df9

#输出日志如下:
[rootI u G X l ?@node01 ~]# kubeadm join 192.168.1.9:6443 --token xknT t S Y S v X Gie1.dm76a39ntgnwkyid \

--discov_ q F p i F 9 + jery-token-ca-cert-hash sha2E ( j k56:76896f39087f6fa66a43a0c336c081649ae65a781c80d140ba492b57bb038df9 

[preflight] Running prem p ~ j u (-flight checks
[preflight] Reading confiZ P rguration from the cluster...
[preflight] FYI: You can look at this config file with 'kubectl -n kube-system get cm kubeadm-config -oyaml'
[kubelet-start] Downloading configuration for the kubelet from the "kubelet-conN = ( & Z )fig-1.15" ConfigMap i` m ] Z [ + O .n the kubC 4 X Z q ; [ o oe-system namespace
[kubelet-start] Writing} d ( v a ~ 4 , kubelet configuration to f` . + 9 } 7 ~ ^ ;ile "/var/lib/kubelet/config.yam8 S V _ 1 = el"
[kubelet-start] Writing kubelet environment file with 0 5 d P V r D B flags to file "/var/lib/kubelet/kubeadm-flags.env"
[kubelet-start] Activating the ku/ ? # 3 w & Vbelet serviy 8 - ] . Ece
[kubelet-starJ _ d It] Waiz F m * Q B Eting for the kubelet to perform the TLS Bootstrap...

This( C ( [ N ] r node has joined the cluster:

  • Certificate signing request wj B * | V F j @as sent to apisv f h ` O E 2erver and a response was received.
  • The Kubelet was inf# [ b 8 %ormed of the new secure connection details.

Run 'kubectl ge+ n / B ct nodes' on the control-plane to see this node join the cluster.

[root@{ s j z a E 0 {node01 ~]#

#检查状态
[root@master01 ~]# kubectl get node
NAME STATUS ROLES AGE VERSION
master01 Ready master 33m v1.15.2
node01 Ready <none> 7m30s v1.15.2n r ) o Y *
node02 RI r p _eady <noV ? % P G ) , gne> 5m20s v1.15.2
[root@master01 ~]#

#如果成功后,那么就会正常
[root@node02 ~]# docker imd N ^ y A A d )ages
REPOSITORY TAG IMAGE ID CREATED SIZE
quay.io/coreos/flannel v0.12.0-amd64 4e9f801d2217 4 months ago 52.8MB
registry.aliyuncs.com/google_containers/kube-proxN g v @ F oy v1.15.2 167bbf6c9338 12 months ago 82.4MB
registry.aliyuncs.com/google_containers/pause 3.1 da86e6ba6ca1 2 years ago 742kB
[root@node02 ~]#


* 验证

#创建一个deployS Z ! G 8 Z qment测试
[root@master01 ~]# kubectl create deploymentI | F X & q ngi7 D wnx --i| ( * K : )mage=nginx

root@master01 ~]# kubectl get pod -owide
NAME READY] j S Z S 0 STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES
nginx-554b9c67f9-bbrm5 1/1 Running 0 89s 10.244.1.2 node01 <none>L 4 6 w K 9 = C <$ / z;none>

#访问W 7 o C 2 c ~验证已经成功了
[root@master01 ~]# curl http://10.244.1.2
<!DOCTYPE html&gX 0 Tt;
<html&g= R B q i / rtO - u $ h 1 @ H A;
<head>
<title>Welcome to nginx!</K 5 Q # F %title>
<style>
body {
width: 35em;
margin: 0 auto;
fo0 Y x ] 1 % I ,nt-family: Tahoma, Verdana, Ari- 4 y Q s U p Xal, sans-serif;
}
</style>
</head>
<body>
<h1>WelcoG a + e V e r Lme to nginx!</h1&( 0 g rgt;
<p>If you see this page, the nginx web server is successfully installed and
working. Further configuration is required.</p&: : g & u + i t ~gt;

<p>For online dz [ G J x /ocumentation and support please refer to
<a href="http://nginx.org/"^ ~ - t 8 F & ! t>nginx.org</a>.<br/&gt;
Commercial supporm U ~ D ^ 1 Wt is available at
<a href=% o D ! s O / #"http://nginx.com/">nginx.com</a^ _ 7 ; Q b (>.</p&gt;

<p><em>Thank you for using nginx.</em></p>
</body>
</hN @ Ltml>


* 图形界面安装
下载文X @ F / v * | Z件,需要***,https://raw.githubusercontent.com/kubernetes/dashboard/v2.0.3/aio/deploy/recommended.yaml

[root@master01 ~]# kubectl apply -f recommended.yamlK : h y
namespace/kubernetes-dashboa5 ( h I E U ( }rd created
serviceaccount/kubernetes-dashboard created
service/kubernetes-dashboard created
secret/kubernetes-dashboard-certs created
secret/kubernetes-dashboard-csrf created
secret/kubernetes-dashboard-key-holder created
configmap/kubernetes-dashboard-settings created
role.rbac.authorization.k8s.io/kubernetes-dashboard created
clusterrole.rbac.authorization.k8s.io/kubernetes-dashboard created
rolebinding.rbac.authorization.k8s.io/kub6 A x F g - K O yernetes-dashboard created
clustx k 5 [ C E verrolebinding.rbac.authorization.k8s.io/y Q e E Ekubernetes-dashboard created
deployment.apps/kubernetes-dashboard created
service/dashboard-metrics-scraper created
deployment.apps/dashboard-metrics-scrav } + n A o A iper created
[root@; ; o 2 z j Amaster01 ~]#

[root@master01 ~]# kubectl get pod -/ ( 2 @ %n kubernetes-dashboard
NAME READY STATUS RESTARTS AGE
dashboard-metrics-scN n & ? s Xraper-76679bc5b9-2psr7 1/1 Running 0 52s
kubernetes-dasR g ] G e R 6 2 ;hboard-65bb64d6cb-wvw5m 1/1= { . Rue f o v ) [ , mnns n O j y P aing 0 52s
[root@master01 ~]#L p 5 2

#运行:
[root@master01 ~]# kubectl proxy
Starting toM 6 P { Y z serve on 127.0.0.# * v # q ?1:8001


* web访问
https://10.0.0.106:30000/#!/login

创建权限
kubectl c? D G rreate serviceaccount dashboard-admin -n ku/ M Vbe-system
kubectl create cl) 6 l F _usterrolebinding dashboard-admin --clusterrole=cluster-admin --% l 9 ` ! mserviceaccount=kube-system:dashboard-admin

#获取token
[root@master01 ~]# kubectl describe secrets -n kube-sysQ w y { N ,tem $(( 6 U # ` y L L ckubectl -n kube-systx & @ Qem get secret | awk '/dashboar# O s t y C -d-admC ; ?in/{print $1}')
Nam_ B s oe: dashboard-a{ u ~ I vdmin-token-4m5bz
Nam@ 1 + hespa( B t N Q ^ * 3ce: kube-systT 8 T x f Tem
LabelF 2 R 6 Y T V a s: <none>
Annotations: kubernetes.io/service-account.name: dashboard-ad? ~ p Y bmin
kubernetes.io/sn a J Z 4 ! ! S Wervice-account.uid: 026851ee-43da-4de4-9m O 5 p | { bb36-a1a739dc2fh [ P McI y ; T ! 3 n5

Type: kubernetes.io/service-account-token

Data

ca.crt: 1025 bytes
namespace: 16 O j H f o % f1 bytes
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[root@master01 ~]#