本文主要是介绍k8s !k8s多节点仪表盘(web界面)部署与谷歌浏览器访问k8s仪表盘问题解决!,希望对大家解决编程问题提供一定的参考价值,需要的开发者们随着小编来一起学习吧!
文章目录
- 前言
- 一:k8s的WEB界面部署
- 1.1:两个master节点检查pod资源是否正常
- 1.2、master节点上创建dashboard工作目录,并拷贝部署web界面所需的文件到指定目录
- 1.3、根据上传的文件创建相应的pod
- 1.4:访问web界面,并解决访问问题
- 1.5:选择使用令牌访问
前言
一:k8s的WEB界面部署
1.1:两个master节点检查pod资源是否正常
[root@master ~]# kubectl get nodes '//检查node节点是否运行正常'
NAME STATUS ROLES AGE VERSION
192.168.233.132 Ready <none> 8d v1.12.3
192.168.233.133 Ready <none> 8d v1.12.3
[root@master ~]# kubectl get pods '//检查之前创建的pod资源是否运行正常'
NAME READY STATUS RESTARTS AGE
nginx-dbddb74b8-5s6h7 1/1 Running 0 7d8h
1.2、master节点上创建dashboard工作目录,并拷贝部署web界面所需的文件到指定目录
- 下载的网址(直接复制即可):https://github.com/kubernetes/kubernetes/tree/master/cluster/addons/dashboard
[root@master dashboard]# rz -E
rz waiting to receive.
[root@master dashboard]# ls
dashboard-configmap.yaml dashboard-secret.yaml
dashboard-deployment.yaml dashboard-service.yaml
dashboard-rbac.yaml k8s-admin.yaml
'//configmap.yaml:配置,deployment.yaml:控制器,rbac.yaml:角色控制,访问控制,secret.yaml:安全,service.yaml:服务'
- 其中service的文件需要添加node节点的访问端口
apiVersion: v1
kind: Service
metadata:name: kubernetes-dashboardnamespace: kube-systemlabels:k8s-app: kubernetes-dashboardkubernetes.io/cluster-service: "true"addonmanager.kubernetes.io/mode: Reconcile
spec:type: NodePort '//添加类型'selector:k8s-app: kubernetes-dashboardports:- port: 443targetPort: 8443nodePort: 30005 '//添加类型端口'
- 还需要自己编写一个admin的yaml文件
apiVersion: v1
kind: ServiceAccount
metadata:name: dashboard-adminnamespace: kube-system
---
kind: ClusterRoleBinding
apiVersion: rbac.authorization.k8s.io/v1beta1
metadata:name: dashboard-admin
subjects:- kind: ServiceAccountname: dashboard-adminnamespace: kube-system
roleRef:kind: ClusterRolename: cluster-adminapiGroup: rbac.authorization.k8s.io
1.3、根据上传的文件创建相应的pod
- 创建访问控制的pod
[root@master dashboard]# kubectl create -f dashboard-rbac.yaml
role.rbac.authorization.k8s.io/kubernetes-dashboard-minimal created
rolebinding.rbac.authorization.k8s.io/kubernetes-dashboard-minimal created
[root@master dashboard]# kubectl get Role -n kube-system '//Role是dashboard-rbac.yaml文件中指明的Kind,-n是指定namespace,同样在配置文件中可以查看'
NAME AGE
extension-apiserver-authentication-reader 8d
kubernetes-dashboard-minimal 19s '//创建成功'
system::leader-locking-kube-controller-manager 8d
system::leader-locking-kube-scheduler 8d
system:controller:bootstrap-signer 8d
system:controller:cloud-provider 8d
system:controller:token-cleaner 8d
- 创建安全的pod
[root@master dashboard]# kubectl create -f dashboard-secret.yaml
secret/kubernetes-dashboard-certs created
secret/kubernetes-dashboard-key-holder created
[root@master dashboard]# kubectl get Secret -n kube-system
NAME TYPE DATA AGE
default-token-cnnbv kubernetes.io/service-account-token 3 8d
kubernetes-dashboard-certs Opaque 0 33s
kubernetes-dashboard-key-holder Opaque 0 33s
- 同理创建其他的pod
'//创建配置的pod'
[root@master dashboard]# kubectl create -f dashboard-configmap.yaml
configmap/kubernetes-dashboard-settings created
[root@master dashboard]# kubectl get Configmap -n kube-system
NAME DATA AGE
extension-apiserver-authentication 1 8d
kubernetes-dashboard-settings 0 17s
'//创建控制器的pod'
[root@master dashboard]# kubectl create -f dashboard-deployment.yaml
serviceaccount/kubernetes-dashboard created
deployment.apps/kubernetes-dashboard created
[root@master dashboard]# kubectl get ServiceAccount -n kube-system
NAME SECRETS AGE
default 1 8d
kubernetes-dashboard 1 22s
'//创建service服务pod'
[root@master dashboard]# kubectl create -f dashboard-service.yaml
service/kubernetes-dashboard created
[root@master dashboard]# kubectl get service -n kube-system
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S)
kubernetes-dashboard NodePort 10.0.0.139 <none> 443:30005/T
'//pod资源只是提供程序应用,一旦service创建了,那么pod资源会被提供出去可以访问,端口伴随着service出现的,通过nodeport端口访问web界面'
- 查看创建完成的pod资源
[root@master dashboard]# kubectl get pods -n kube-system '//查看创建在指定的kube-system命名空间下的资源'
NAME READY STATUS RESTARTS AGE
kubernetes-dashboard-65f974f565-gxg98 1/1 Running 0 9m45s
'//可以缩写,可以同时查看多个资源'
[root@master dashboard]# kubectl get pods,svc -n kube-system
NAME READY STATUS RESTARTS AGE
pod/kubernetes-dashboard-65f974f565-gxg98 1/1 Running 0 12mNAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
service/kubernetes-dashboard NodePort 10.0.0.139 <none> 443:30005/TCP 5m21s
- 查看pod资源在哪个节点
[root@master dashboard]# kubectl get pods -n kube-system -o wide
NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE
kubernetes-dashboard-65f974f565-gxg98 1/1 Running 0 12m 172.17.4.2 192.168.233.133 <none>
- 查看pod资源日志
[root@master dashboard]# kubectl logs kubernetes-dashboard-65f974f565-gxg98 -n kube-system
- 总结一下:k8s创建pod资源有两种方式
1、使用kubectl 命令创建:kubectl run 名称 --image= 镜像
2、使用yaml文件格式进行创建:kubectl create -f yaml文件
1.4:访问web界面,并解决访问问题
- 访问网址:https://192.168.233.133:30005,打开开发者工具,查看security发现缺少证书
- 为谷歌浏览器写一个证书
root@master dashboard]# vim dashboard-cert.sh
cat > dashboard-csr.json <<EOF
{"CN": "Dashboard","hosts": [],"key": {"algo": "rsa","size": 2048},"names": [{"C": "CN","L": "BeiJing","ST": "BeiJing"}]
}
EOFK8S_CA=$1
cfssl gencert -ca=$K8S_CA/ca.pem -ca-key=$K8S_CA/ca-key.pem -config=$K8S_CA/ca-config.json -profile=kubernetes dashboard-csr.json | cfssljson -bare dashboard
kubectl delete secret kubernetes-dashboard-certs -n kube-system
kubectl create secret generic kubernetes-dashboard-certs --from-file=./ -n kube-system
- 生成证书到指定目录
[root@master dashboard]# bash dashboard-cert.sh /root/k8s/k8s-cert/
- 修改控制的配置文件
[root@master dashboard]# vim dashboard-deployment.yaml ...省略内容ports:- containerPort: 8443protocol: TCPargs:# PLATFORM-SPECIFIC ARGS HERE- --auto-generate-certificates- --tls-key-file=dashboard-key.pem '//下方添加这两行内容'- --tls-cert-file=dashboard.pem
- 重新部署更新,使用apply命令
[root@master dashboard]# kubectl apply -f dashboard-deployment.yaml
Warning: kubectl apply should be used on resource created by either kubectl create --save-config or kubectl apply
serviceaccount/kubernetes-dashboard configured
Warning: kubectl apply should be used on resource created by either kubectl create --save-config or kubectl apply
deployment.apps/kubernetes-dashboard configured
[root@master dashboard]# kubectl get pods -n kube-system -o wide
NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE
kubernetes-dashboard-7dffbccd68-58qms 1/1 Running 0 26s 172.17.26.3 192.168.233.132 <none> '//节点变了'
- 再次访问web界面
1.5:选择使用令牌访问
- 生成令牌
[root@master dashboard]# kubectl create -f k8s-admin.yaml
serviceaccount/dashboard-admin created
clusterrolebinding.rbac.authorization.k8s.io/dashboard-admin created
[root@master dashboard]# kubectl get secret -n kube-system
NAME TYPE DATA AGE
dashboard-admin-token-zwktc kubernetes.io/service-account-token 3 14s '//生成了令牌'
default-token-cnnbv kubernetes.io/service-account-token 3 8d
kubernetes-dashboard-certs Opaque 11 9m58s
kubernetes-dashboard-key-holder Opaque 2 35m
kubernetes-dashboard-token-qgppd kubernetes.io/service-account-token 3 32m
- 查看令牌
[root@master dashboard]# kubectl describe secret dashboard-admin-token-zwktc -n kube-system
Name: dashboard-admin-token-zwktc
Namespace: kube-system
Labels: <none>
Annotations: kubernetes.io/service-account.name: dashboard-adminkubernetes.io/service-account.uid: ec6e301f-90d4-11ea-8c4f-000c294b2dd3Type: kubernetes.io/service-account-tokenData
====
ca.crt: 1359 bytes
namespace: 11 bytes
token: '//复制下方令牌,填写到浏览器中即可' eyJhbGciOiJSUzI1NiIsImtpZCI6IiJ9.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.n8a101tY2bjlv99A3WHiEsdlLBBnTXXeJED32lOBjJ6M66_rFDVyxzpAWqxY146NkRdaXK0eVdNzIkAPRXWEO1uHjU17T3iHeWBqSzQgzxvN2NgnAam4zQmBE4XaeO2HFv63MX4VDzvwsu8k8MeiryUEBw86DTndCfgvnxcPszq2rZR5QwiHMjAxFQMIA7SQvWj2-rDO7ln6gkqVU5fH04ujz7p2sXI_QQezFjMDTtKWFcMegT3T2gq65-CMB34MyEcxZxGWPQeDu4A4S7PLPlbr0CLdO7YVBWU_pEab0LHBlN8KsJYeZd49kBMgA-EdY5uMQJbH_XFHyGXq3VShwA
- 再次访问web界面
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