kubeadm部署kubernetes·高可用集群

一、k8s高可用的2中部署方式

1,一种是将etcd与Master节点组件混布在一起

 

2,另外一种方式是,使用独立的Etcd集群,不与Master节点混布

 

通过kubeadm搭建一个高可用的k8s集群,kubeadm可以帮助我们快速的搭建k8s集群,高可用主要体现在对master节点组件及etcd存储的高可用

二、环境准备

鉴于资源限制下面部署案例为2个master节点和1个node节点。在集群架构内环境扩展起来很方便

1、主机规划

服务说明 ip 主机名规则 安装服务
maser01 192.168.109.111 ha-maser01 dashboard、kube-apiserver、kube-scheduler、kube-controller-manager、etcd、kubeadm、kubelet、kubectl
master02 192.168.109.112 ha-master02 kube-apiserver、kube-scheduler、kube-controller-manager、etcd、kubeadm、kubelet、kubectl
node01 192.168.109.113 ha-node04

kubeadm,kubelet,kubectl

2、部署docker

     1、下载docker源wget https://download.docker.com/linux/centos/docker-ce.repo  并移动到/etc/yum.repos.d/目录下面  mv  docker-ce.repo  /etc/yum.repos.d/

    安装docker服务并加入开机启动

yum -y install docker-ce systemctl start docker && systemctl enable docker

  2、使用官方安装脚本自动安 

命令:curl -fsSL https://get.docker.com | bash -s docker --mirror Aliyun

    3、配置docker加速器并修改成k8s驱动

         daemon.json文件如果没有自己创建 路径:/etc/docker/daemon.json

{ 
    "exec-opts": ["native.cgroupdriver=systemd"], 
    "log-driver": "json-file", 
    "log-opts": { 
        "max-size": "100m"
     }, 
    "storage-driver": "overlay2", 
    "storage-opts": [ "overlay2.override_kernel_check=true" ] 
}    
重启docker
systemctl restart docker

 4、更改各节点主机名

 

hostnamectl set-hostname 主机名

 

5、.配置各节点hosts文件

 

127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6
192.168.109.111 ha-master01
192.168.109.112 ha-master02
192.168.109.114 ha-node04

 

6、关闭各个节点防火墙和SElinux

systemctl stop firewalld && systemctl disable firewalld
[root@ha01 ~]# cat /etc/sysconfig/selinux 

# This file controls the state of SELinux on the system.
# SELINUX= can take one of these three values:
#     enforcing - SELinux security policy is enforced.
#     permissive - SELinux prints warnings instead of enforcing.
#     disabled - No SELinux policy is loaded.
SELINUX=disabled
# SELINUXTYPE= can take one of three values:
#     targeted - Targeted processes are protected,
#     minimum - Modification of targeted policy. Only selected processes are protected. 
#     mls - Multi Level Security protection.
SELINUXTYPE=targeted 

7、关闭每台服务器swap分区

 

[root@ha01 ~]# cat /etc/fstab 

#
# /etc/fstab
# Created by anaconda on Mon Jan 11 22:49:08 2021
#
# Accessible filesystems, by reference, are maintained under '/dev/disk'
# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info
#
/dev/mapper/centos-root /                       xfs     defaults        0 0
UUID=cb824a10-9132-4f88-b999-ea649de9cbba /boot                   xfs     defaults        0 0
#/dev/mapper/centos-swap swap                    swap    defaults        0 0

 

8、重启服务reboot

9、同步每台节点的时间 # chrony或者ntpdate都行

 

设置当前系统为Asia/Shanghai上海时区
timedatectl set-timezone Asia/Shanghai
设置完时区后,强制同步下系统时钟:
chronyc -a makestep

 

10、每台服务器内核调整,将桥接的IPv4流量传递到iptables的链

 

[root@ha01 ~]# cat /etc/sysctl.d/k8s.conf 
net.bridge.bridge-nf-call-ip6tables = 1
net.bridge.bridge-nf-call-iptables = 1
net.ipv4.ip_nonlocal_bind = 1
net.ipv4.ip_forward = 1
[root@ha01 ~]# sysctl -p /etc/sysctl.d/k8s.conf

 

11、配置每台服务器增加k8syum

 

[root@ha01 ~]# cat /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_gpgcheck=1
gpgkey=https://mirrors.aliyun.com/kubernetes/yum/doc/yum-key.gpg https://mirrors.aliyun.com/kubernetes/yum/doc/rpm-package-key.gpg

 

12、每台服务器安装ipset服务

 

yum -y install ipvsadm ipset sysstat conntrack libseccomp

 

13、每台服务器开启ipvs模块

 

[root@ha01 ~]# cat /etc/sysconfig/modules/ipvs.modules
#!/bin/sh
modprobe -- ip_vs
modprobe -- ip_vs_rr
modprobe -- ip_vs_wrr
modprobe -- ip_vs_sh
modprobe -- nf_conntrack_ipv4
[root@ha01 ~]# chmod 755 /etc/sysconfig/modules/ipvs.modules && bash /etc/sysconfig/modules/ipvs.modules && lsmod | grep -e ip_vs -e nf_conntrack_ipv4

三、master节点安装haproxykeepalived

1、安装基本的依赖包

 

yum -y install net-tools vim lrzsz tree screen lsof tcpdump nc mtr nmap gcc glibc gcc-c++

 

2、创建记录日志文件

 

mkdir /var/log/haproxy
chmod a
+w /var/log/haproxy

 

3、开启rsyslog记录haproxy日志功能

 

取消 /etc/rsyslog.conf文件下面的如下2处
$ModLoad imudp
$UDPServerRun 514

 在该文件添加如下内容:

 local3.*                       /var/log/haproxy/haproxy.log

 

4、修改“/etc/sysconfig/rsyslog”文件

 

[root@ha01 ~]# cat /etc/sysconfig/rsyslog
# Options for rsyslogd
# Syslogd options are deprecated since rsyslog v3.
# If you want to use them, switch to compatibility mode 2 by "-c 2"
# See rsyslogd(8) for more details
#SYSLOGD_OPTIONS=""
SYSLOGD_OPTIONS="-r -m 0 -c 2"

 

5、重启syslog服务

systemctl restart rsyslog.service

6,安装keepalived、haproxy

yum -y install haproxy keepalived

7、修改keepalived主节点文件

[root@ha01 ~]# cat /etc/sysconfig/rsyslog
# Options for rsyslogd
# Syslogd options are deprecated since rsyslog v3.
# If you want to use them, switch to compatibility mode 2 by "-c 2"
# See rsyslogd(8) for more details
#SYSLOGD_OPTIONS=""
SYSLOGD_OPTIONS="-r -m 0 -c 2"
[root@ha01 ~]# cat /etc/keepalived/keepalived.conf
! Configuration File for keepalived

global_defs {
   router_id LVS_DEVEL
   script_user root
   enable_script_security
}
vrrp_script check_haproxy {
    script "/etc/keepalived/check_haproxy.sh"         # 检测脚本路径
    interval 3
    weight -2 
    fall 10
    rise 2
}
vrrp_instance VI_1 {
    state MASTER            # 第一台是MASTER,其他几台master是BACKUP
    interface ens33         # 本机网卡名
    virtual_router_id 51
    priority 100            # 权重后一台要比前一台小100,99,98
    advert_int 1
    authentication {
        auth_type PASS
        auth_pass 1111
    }
    virtual_ipaddress {
        192.168.109.113     # 虚拟IP
    }
    track_script {
        check_haproxy       # 模块
    }
}

8、修改keepalived从节点文件

[root@ha02 ~]# cat /etc/keepalived/keepalived.conf 
! Configuration File for keepalived

global_defs {
   router_id LVS_DEVEL
   script_user root
   enable_script_security
}
vrrp_script check_haproxy {
    script "/etc/keepalived/check_haproxy.sh"         # 检测脚本路径
    interval 3
    weight -2 
    fall 10
    rise 2
}
vrrp_instance VI_1 {
    state BACKUP            # 第一台是MASTER,其他几台master是BACKUP
    interface ens33         # 本机网卡名
    virtual_router_id 51
    priority 99            # 权重后一台要比前一台小100,99,98
    advert_int 1
    authentication {
        auth_type PASS
        auth_pass 1111
    }
    virtual_ipaddress {
        192.168.109.113     # 虚拟IP
    }
    track_script {
        check_haproxy       # 模块
    }
}

9、修改haproxy配置文件、多个节点配置一致

[root@ha02 ~]# cat /etc/haproxy/haproxy.cfg
#---------------------------------------------------------------------
# Example configuration for a possible web application.  See the
# full configuration options online.
#
#   http://haproxy.1wt.eu/download/1.4/doc/configuration.txt
#
#---------------------------------------------------------------------

#---------------------------------------------------------------------
# Global settings
#---------------------------------------------------------------------
global
    # to have these messages end up in /var/log/haproxy.log you will
    # need to:
    #
    # 1) configure syslog to accept network log events.  This is done
    #    by adding the '-r' option to the SYSLOGD_OPTIONS in
    #    /etc/sysconfig/syslog
    #
    # 2) configure local2 events to go to the /var/log/haproxy.log
    #   file. A line like the following can be added to
    #   /etc/sysconfig/syslog
    #
    #    local2.*                       /var/log/haproxy.log
    #
    log         127.0.0.1 local3 info

    chroot      /var/lib/haproxy
    pidfile     /var/run/haproxy.pid
    maxconn     4000
    user        haproxy
    group       haproxy
    daemon

    # turn on stats unix socket
    stats socket /var/lib/haproxy/stats

#---------------------------------------------------------------------
# common defaults that all the 'listen' and 'backend' sections will
# use if not designated in their block
#---------------------------------------------------------------------
defaults
    mode                    http
    log                     global
    option                  httplog
    option                  dontlognull
    option http-server-close
    option forwardfor       except 127.0.0.0/8
    option                  redispatch
    retries                 3
    timeout http-request    10s
    timeout queue           1m
    timeout connect         10s
    timeout client          1m
    timeout server          1m
    timeout http-keep-alive 10s
    timeout check           10s
    maxconn                 3000

#---------------------------------------------------------------------
# main frontend which proxys to the backends
#---------------------------------------------------------------------
frontend  kubernetes-apiserver
    mode                        tcp
    bind                        *:16443
    option                      tcplog
    default_backend             kubernetes-apiserver
#---------------------------------------------------------------------
# static backend for serving up images, stylesheets and such
#---------------------------------------------------------------------
listen stats
    mode            http
    bind            *:1080
    stats auth      admin:123456
    stats refresh   30s
    #stats realm     HAProxy\ Statistics
    stats uri       /admin?stats
#---------------------------------------------------------------------
# round robin balancing between the various backends
#---------------------------------------------------------------------
backend kubernetes-apiserver
    mode    tcp
    balance     roundrobin
    server      ha01 192.168.109.111:6443 check inter 2000 rise 30 fall 15
    server      ha02 192.168.109.112:6443 check inter 2000 rise 30 fall 15

10、每台kubernetes-master节点编写健康监测脚本并赋予执行权限

 

[root@ha02 ~]# cat /etc/keepalived/check_haproxy.sh 
#!/bin/sh
# HAPROXY down
A=`ps -C haproxy --no-header | wc -l`
if [ $A -eq 0 ]
then
systmectl start haproxy
if [ ps -C haproxy --no-header | wc -l -eq 0 ]
then
killall -9 haproxy
echo "HAPROXY down" | mail -s "haproxy"
sleep 3600
fi 
fi
[root@ha02 ~]# chmod +x check_haproxy.sh

 

11、启动keepalive和haproxy服务

systemctl start keepalived && systemctl enable keepalived
systemctl start haproxy && systemctl enable haproxy

12、查看keepalive的vip地址,只能在keepalived的master节点才有vip地址,当master节点keepalived服务结束vip会自动切到从节点

[root@ha01 ~]# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    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 group default qlen 1000
    link/ether 00:0c:29:45:77:73 brd ff:ff:ff:ff:ff:ff
    inet 192.168.109.111/24 brd 192.168.109.255 scope global noprefixroute ens33
       valid_lft forever preferred_lft forever
    inet 192.168.109.113/32 scope global ens33
       valid_lft forever preferred_lft forever
    inet6 fe80::5599:adbd:dc2d:70b8/64 scope link noprefixroute 
       valid_lft forever preferred_lft forever

13、验证haproxy

浏览器输入http://192.168.109.113:1080/admin?stats

输入用户名:admin,密码:123456,如果出现如下信息说明haproxy已经成功启动了

四、部署kubernetes集群

 1、每个节点安装kubeadm,kubeletkubectl # 安装的kubeadmkubectlkubelet要和kubernetes版本一致,

  kubelet加入开机启动之后不手动启动,要不然会报错,初始化集群之后集群会自动启动kubelet服务!!

 

yum -y install kubeadm-1.18.2 kubelet-1.18.2 kubectl-1.18.2
systemctl enable kubelet && systemctl daemon-reload

 

2、获取默认配置文件kubeadm默认配置文件kubeadm-config.yaml 

 

 

kubeadm config print init-defaults > kubeadm-config.yaml

3、修改配置文件kubeadm-config.yaml

由于默认拉取镜像地址k8s.gcr.io国内无法访问,这里指定阿里云镜像仓库地址:registry.aliyuncs.com/google_containers

[root@ha01 ~]# cat kubeadm-config.yaml 
apiVersion: kubeadm.k8s.io/v1beta2
bootstrapTokens:
- groups:
  - system:bootstrappers:kubeadm:default-node-token
  token: abcdef.0123456789abcdef
  ttl: 24h0m0s
  usages:
  - signing
  - authentication
kind: InitConfiguration
localAPIEndpoint:
  advertiseAddress: 192.168.109.111  #本机地址
  bindPort: 6443  #haproxy监听端口
nodeRegistration:
  criSocket: /var/run/dockershim.sock
  name: ha01
  taints:
  - effect: NoSchedule
    key: node-role.kubernetes.io/master
---
apiServer:
  timeoutForControlPlane: 4m0s
apiVersion: kubeadm.k8s.io/v1beta2
certificatesDir: /etc/kubernetes/pki
clusterName: kubernetes
controlPlaneEndpoint: "192.168.109.113:16443"  #vip地址
controllerManager: {}
dns:
  type: CoreDNS
etcd:
  local:
    dataDir: /var/lib/etcd
imageRepository: registry.aliyuncs.com/google_containers
kind: ClusterConfiguration
kubernetesVersion: v1.18.0
networking:
  dnsDomain: cluster.local
  podSubnet: "10.244.0.0/16"  #新增一行
  serviceSubnet: 10.96.0.0/12
scheduler: {}
---
apiVersion: kubeproxy.config.k8s.io/v1alpha1
kind: KubeProxyConfiguration
featureGates:
  SupportIPVSProxyMode: true
mode: ipvs

4、下载集群相关镜像

kubeadm config images pull --config kubeadm-config.yaml

5、镜像列表如下

[root@ha01 ~]# docker images
REPOSITORY                                                        TAG             IMAGE ID       CREATED         SIZE
kubernetesui/metrics-scraper                                      v1.0.6          48d79e554db6   2 months ago    34.5MB
registry.aliyuncs.com/google_containers/kube-proxy                v1.18.0         43940c34f24f   9 months ago    117MB
registry.aliyuncs.com/google_containers/kube-apiserver            v1.18.0         74060cea7f70   9 months ago    173MB
registry.aliyuncs.com/google_containers/kube-controller-manager   v1.18.0         d3e55153f52f   9 months ago    162MB
registry.aliyuncs.com/google_containers/kube-scheduler            v1.18.0         a31f78c7c8ce   9 months ago    95.3MB
registry.aliyuncs.com/google_containers/pause                     3.2             80d28bedfe5d   11 months ago   683kB
registry.aliyuncs.com/google_containers/coredns                   1.6.7           67da37a9a360   11 months ago   43.8MB
registry.aliyuncs.com/google_containers/etcd                      3.4.3-0         303ce5db0e90   14 months ago   288MB

6、初始化集群

 

kubeadm init --config kubeadm-config.yaml

 

7、出现下面日志记录表示集群初始化成功

You can now join any number of control-plane nodes by copying certificate authorities
and service account keys on each node and then running the following as root:

  kubeadm join 192.168.109.113:16443 --token abcdef.0123456789abcdef \
    --discovery-token-ca-cert-hash sha256:42c7804e1a7fcc33dafd967d35ffb9328c3c0045c726c50bea4118051f4c05e6 \
    --control-plane 

Then you can join any number of worker nodes by running the following on each as root:

kubeadm join 192.168.109.113:16443 --token abcdef.0123456789abcdef \
--discovery-token-ca-cert-hash sha256:42c7804e1a7fcc33dafd967d35ffb9328c3c0045c726c50bea4118051f4c05e6 

8、在其它kubernete-master节点创建以下目录

 

mkdir -p /etc/kubernetes/pki/etcd

 

9、把主master节点证书分别复制到其它master节点

 

scp /etc/kubernetes/pki/ca.* root@192.168.109.112:/etc/kubernetes/pki/
scp /etc/kubernetes/pki/sa.* root@192.168.109.112:/etc/kubernetes/pki/
scp /etc/kubernetes/pki/front-proxy-ca.* root@192.168.109.112:/etc/kubernetes/pki/
scp /etc/kubernetes/pki/etcd/ca.* root@192.168.109.112:/etc/kubernetes/pki/etcd/
scp /etc/kubernetes/admin.conf root@192.168.109.112:/etc/kubernetes/

 

10、把主节点admin.conf证书复制到其他node节点

 

scp /etc/kubernetes/admin.conf root@192.168.109.114:/etc/kubernetes/

 

11、安装网络插件,容器正常启动起来时间可能需要5分钟左右耐心等候

kubectl apply -f https://raw.githubusercontent.com/coreos/flannel/master/Documentation/kube-flannel.yml

12、在主master节点外的其他master节点执行以下命令,该命令执行会自动同步k8s集群相关镜像文件

 

kubeadm join 192.168.109.113:16443 --token abcdef.0123456789abcdef \
    --discovery-token-ca-cert-hash sha256:42c7804e1a7fcc33dafd967d35ffb9328c3c0045c726c50bea4118051f4c05e6 \
    --control-plane 

 

13、在所有node节点执行以下命令,该命令执行会自动同步k8s集群相关镜像文件

(2-7步只需要在主master节点执行就可以)

kubeadm join 192.168.109.113:16443 --token abcdef.0123456789abcdef \
--discovery-token-ca-cert-hash sha256:42c7804e1a7fcc33dafd967d35ffb9328c3c0045c726c50bea4118051f4c05e6

14、在其它master和node节点执行以下命令

 

echo "export KUBECONFIG=/etc/kubernetes/admin.conf" >> ~/.bash_profile 
source .bash_profile

mkdir -p $HOME/.kube sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config sudo chown $(id -u):$(id -g) $HOME/.kube/config

 

15、查看集群状态

[root@ha01 ~]# kubectl get nodes
NAME   STATUS   ROLES    AGE   VERSION
ha01   Ready    master   18h   v1.18.2
ha02   Ready    master   17h   v1.18.2
ha04   Ready    <none>   16h   v1.18.2

16、查看pod运行状态

[root@ha02 ~]# kubectl get pods --all-namespaces
NAMESPACE              NAME                                         READY   STATUS    RESTARTS   AGE
kube-system            coredns-7ff77c879f-dh82p                     1/1     Running   0          18h
kube-system            coredns-7ff77c879f-wlhnl                     1/1     Running   0          18h
kube-system            etcd-ha01                                    1/1     Running   7          18h
kube-system            etcd-ha02                                    1/1     Running   1          17h
kube-system            kube-apiserver-ha01                          1/1     Running   8          18h
kube-system            kube-apiserver-ha02                          1/1     Running   3          17h
kube-system            kube-controller-manager-ha01                 1/1     Running   2          18h
kube-system            kube-controller-manager-ha02                 1/1     Running   0          17h
kube-system            kube-flannel-ds-amd64-4dbd2                  1/1     Running   0          17h
kube-system            kube-flannel-ds-amd64-6cvd2                  1/1     Running   0          16h
kube-system            kube-flannel-ds-amd64-wrg4p                  1/1     Running   0          18h
kube-system            kube-proxy-6hrq5                             1/1     Running   0          18h
kube-system            kube-proxy-d6jc9                             1/1     Running   0          16h
kube-system            kube-proxy-lkcpq                             1/1     Running   0          17h
kube-system            kube-scheduler-ha01                          1/1     Running   1          18h
kube-system            kube-scheduler-ha02                          1/1     Running   1          17h

五、安装dashboard

1、下载初始化文件

wget https://raw.githubusercontent.com/kubernetes/dashboard/v2.0.0/aio/deploy/recommended.yaml

2,修改recommended.yaml   ----只展示需要修改的部分内容

---

kind: Service
apiVersion: v1
metadata:
  labels:
    k8s-app: kubernetes-dashboard
  name: kubernetes-dashboard
  namespace: kubernetes-dashboard
spec:
  type: NodePort   #增加NodePort
  ports:
    - port: 443
      targetPort: 8443
      nodePort: 30000  #增加映射到容器外端口
  selector:
    k8s-app: kubernetes-dashboard

3、创建证书

 

mkdir dashboard-certs
cd dashboard-certs
# 创建命名空间
kubectl create namespace kubernetes-dashboard
# 创建key文件
openssl genrsa -out dashboard.key 2048
# 证书请求
openssl req -days 36000 -new -out dashboard.csr -key dashboard.key -subj '/CN=dashboard-cert'
# 自签证书
openssl x509 -req -in dashboard.csr -signkey dashboard.key -out dashboard.crt
# 创建kubernetes-dashboard-certs对象
kubectl create secret generic kubernetes-dashboard-certs --from-file=dashboard.key --from-file=dashboard.crt -n kubernetes-dashboard

 

4,查看证书文件

[root@ha01 ~]# ll dashboard-certs/
总用量 12
-rw-r--r-- 1 root root  989 1月  12 15:50 dashboard.crt
-rw-r--r-- 1 root root  899 1月  12 15:49 dashboard.csr
-rw-r--r-- 1 root root 1675 1月  12 15:49 dashboard.key

5、运行recommended.yaml

kubectl create -f recommended.yaml
#注意会报错
Error from server (AlreadyExists): error when creating "./recommended.yaml": namespaces "kubernetes-dashboard" already exists
#这是因为我们在创建证书时,已经创建了kubernetes-dashboard命名空间,所以,直接忽略此错误信息即可。

6、查看安装结果

[root@ha01 ~]# kubectl get pods -A  -o wide | grep dashboard
kubernetes-dashboard   dashboard-metrics-scraper-78f5d9f487-qbqgr   1/1     Running   0          18h   10.244.0.12       ha01   <none>           <none>
kubernetes-dashboard   kubernetes-dashboard-59ddbcfdcb-h7gsd        1/1     Running   8          18h   10.244.0.11       ha01   <none>           <none>

7、查看暴露端口

[root@ha01 ~]# kubectl get service -n kubernetes-dashboard  -o wide
NAME                        TYPE        CLUSTER-IP       EXTERNAL-IP   PORT(S)         AGE   SELECTOR
dashboard-metrics-scraper   ClusterIP   10.106.77.109    <none>        8000/TCP        18h   k8s-app=dashboard-metrics-scraper
kubernetes-dashboard        NodePort    10.101.143.170   <none>        443:30000/TCP   18h   k8s-app=kubernetes-dashboard

8、创建dashboard管理员

 

[root@ha01 ~]# cat dashboard-admin.yaml 
apiVersion: v1
kind: ServiceAccount
metadata:
  labels:
    k8s-app: kubernetes-dashboard
  name: dashboard-admin
  namespace: kubernetes-dashboard

 

9、执行创建命令

kubectl create -f dashboard-admin.yaml

10、用户权限分配

[root@ha01 ~]# cat dashboard-admin-bind-cluster-role.yaml 
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
  name: dashboard-admin-bind-cluster-role
  labels:
    k8s-app: kubernetes-dashboard
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: cluster-admin
subjects:
- kind: ServiceAccount
  name: dashboard-admin
  namespace: kubernetes-dashboard

11,执行分配命令

kubectl create -f dashboard-admin-bind-cluster-role.yaml

12、查看并复制用户Token

[root@ha01 ~]# kubectl -n kubernetes-dashboard describe secret $(kubectl -n kubernetes-dashboard get secret | grep dashboard-admin | awk '{print $1}')
Name:         dashboard-admin-token-6ll6p
Namespace:    kubernetes-dashboard
Labels:       <none>
Annotations:  kubernetes.io/service-account.name: dashboard-admin
              kubernetes.io/service-account.uid: 4d358094-69b3-417a-85ea-241868f31957

Type:  kubernetes.io/service-account-token

Data
====
ca.crt:     1025 bytes
namespace:  20 bytes
token:      eyJhbGciOiJSUzI1NiIsImtpZCI6IlA2WnBRZENRTEhVeUYzNFZJbGtLQTdpeXBTOF9fYnA2MHBKZExKNXpZdHMifQ.eyJpc3MiOiJrdWJlcm5ldGVzL3NlcnZpY2VhY2NvdW50Iiwia3ViZXJuZXRlcy5pby9zZXJ2aWNlYWNjb3VudC9uYW1lc3BhY2UiOiJrdWJlcm5ldGVzLWRhc2hib2FyZCIsImt1YmVybmV0ZXMuaW8vc2VydmljZWFjY291bnQvc2VjcmV0Lm5hbWUiOiJkYXNoYm9hcmQtYWRtaW4tdG9rZW4tNmxsNnAiLCJrdWJlcm5ldGVzLmlvL3NlcnZpY2VhY2NvdW50L3NlcnZpY2UtYWNjb3VudC5uYW1lIjoiZGFzaGJvYXJkLWFkbWluIiwia3ViZXJuZXRlcy5pby9zZXJ2aWNlYWNjb3VudC9zZXJ2aWNlLWFjY291bnQudWlkIjoiNGQzNTgwOTQtNjliMy00MTdhLTg1ZWEtMjQxODY4ZjMxOTU3Iiwic3ViIjoic3lzdGVtOnNlcnZpY2VhY2NvdW50Omt1YmVybmV0ZXMtZGFzaGJvYXJkOmRhc2hib2FyZC1hZG1pbiJ9.e3SUQTnthXX0VnH9_mXnaPZF4Q3xGeoiIhlYCVDzKd80T4zsLuPIn

13、查看dashboard界面

在浏览器中输入链接https://192.168.109.113:30000/#/login 界面如下图所示

 

 14、我们选择Token方式登录,并输入在命令行获取到的Token,如下所示

 

 15、登录后进入dashboard,如下所示

注:该文章部分内容借鉴和引用https://www.cnblogs.com/lfl17718347843/p/13417304.html感谢大佬

posted @ 2021-01-27 15:22  Syjr  阅读(584)  评论(0)    收藏  举报