K8S——关于K8S控制台的yaml文件编写（基于上一章多节点K8S部署）

• 一、yaml文件编写流程
• 二、证书自签

一、yaml文件编写流程

rbac.yaml---->secret.yaml---->configmap.yaml---->controller.yaml----->dashboard.yaml

#dashboard-rbac.yaml文件
vim dashboard-rbac.yaml
kind: Role				#角色
apiVersion: rbac.authorization.k8s.io/v1	#api版本号（有专门的版本号控制）
metadata:			#源信息labels:k8s-app: kubernetes-dashboardaddonmanager.kubernetes.io/mode: Reconcilename: kubernetes-dashboard-minimal	#创建的资源名称namespace: kube-system
rules:				#参数信息的传入# Allow Dashboard to get, update and delete Dashboard exclusive secrets.
- apiGroups: [""]resources: ["secrets"]resourceNames: ["kubernetes-dashboard-key-holder", "kubernetes-dashboard-certs"]verbs: ["get", "update", "delete"]# Allow Dashboard to get and update 'kubernetes-dashboard-settings' config map.
- apiGroups: [""]resources: ["configmaps"]resourceNames: ["kubernetes-dashboard-settings"]verbs: ["get", "update"]# Allow Dashboard to get metrics from heapster.
- apiGroups: [""]resources: ["services"]resourceNames: ["heapster"]verbs: ["proxy"]
- apiGroups: [""]resources: ["services/proxy"]resourceNames: ["heapster", "http:heapster:", "https:heapster:"]verbs: ["get"]
---
apiVersion: rbac.authorization.k8s.io/v1
kind: RoleBinding
metadata:name: kubernetes-dashboard-minimalnamespace: kube-systemlabels:k8s-app: kubernetes-dashboardaddonmanager.kubernetes.io/mode: Reconcile
roleRef:apiGroup: rbac.authorization.k8s.iokind: Rolename: kubernetes-dashboard-minimal
subjects:
- kind: ServiceAccountname: kubernetes-dashboardnamespace: kube-system	#名称空间的管理（默认为default）#创建dashboard-rbac.yaml资源
kubectl create -f dashboard-rbac.yaml #使用-n 查看Role角色kube-system名称空间中的资源
kubectl get Role -n kube-system
------------------------------------------------------------------------
#dashboard-secret.yaml文件
vim dashboard-secret.yaml 
apiVersion: v1
kind: Secret		#角色
metadata:			#源信息labels:k8s-app: kubernetes-dashboard# Allows editing resource and makes sure it is created first.addonmanager.kubernetes.io/mode: EnsureExistsname: kubernetes-dashboard-certs	#资源名称namespace: kube-system		#命名空间
type: Opaque
---						#--- 分段
apiVersion: v1
kind: Secret
metadata:labels:k8s-app: kubernetes-dashboard# Allows editing resource and makes sure it is created first.addonmanager.kubernetes.io/mode: EnsureExistsname: kubernetes-dashboard-key-holder		#密钥namespace: kube-system
type: Opaque#创建dashboard-secret.yaml 资源
kubectl create -f dashboard-secret.yaml
kubectl get Secret -n kube-system
------------------------------------------------------------------------
#dashboard-configmap.yaml 配置管理文件
vim dashboard-configmap.yaml
apiVersion: v1
kind: ConfigMap
metadata:labels:k8s-app: kubernetes-dashboard# Allows editing resource and makes sure it is created first.addonmanager.kubernetes.io/mode: EnsureExistsname: kubernetes-dashboard-settingsnamespace: kube-system#创建dashboard-configmap.yaml资源
kubectl create -f dashboard-configmap.yaml
kubectl get Configmap -n kube-system
------------------------------------------------------------------------
#dashboard-controller.yaml 控制器文件
vim dashboard-controller.yaml
apiVersion: v1
kind: ServiceAccount			#控制器名称（服务访问）
metadata:labels:k8s-app: kubernetes-dashboardaddonmanager.kubernetes.io/mode: Reconcilename: kubernetes-dashboardnamespace: kube-system
---
apiVersion: apps/v1
kind: Deployment			#控制器名称
metadata:name: kubernetes-dashboardnamespace: kube-systemlabels:k8s-app: kubernetes-dashboardkubernetes.io/cluster-service: "true"addonmanager.kubernetes.io/mode: Reconcile
spec:selector:matchLabels:k8s-app: kubernetes-dashboardtemplate:metadata:labels:k8s-app: kubernetes-dashboardannotations:scheduler.alpha.kubernetes.io/critical-pod: ''seccomp.security.alpha.kubernetes.io/pod: 'docker/default'spec:priorityClassName: system-cluster-critical			containers:			#资源指定的名称、镜像- name: kubernetes-dashboardimage: siriuszg/kubernetes-dashboard-amd64:v1.8.3resources:			#设置了CPU和内存的上限limits:cpu: 100mmemory: 300Mirequests:cpu: 50mmemory: 100Miports:- containerPort: 8443	#8443提供对外的端口号（HTTPS协议）protocol: TCPargs:# PLATFORM-SPECIFIC ARGS HERE- --auto-generate-certificatesvolumeMounts:			#容器卷- name: kubernetes-dashboard-certsmountPath: /certs- name: tmp-volumemountPath: /tmplivenessProbe:httpGet:scheme: HTTPSpath: /port: 8443initialDelaySeconds: 30timeoutSeconds: 30volumes:- name: kubernetes-dashboard-certssecret:secretName: kubernetes-dashboard-certs- name: tmp-volumeemptyDir: {}serviceAccountName: kubernetes-dashboardtolerations:- key: "CriticalAddonsOnly"operator: "Exists"#创建 dashboard-controller.yaml 资源
kubectl create -f dashboard-controller.yaml
kubectl get ServiceAccount -n kube-system
kubectl get deployment -n kube-system
------------------------------------------------------------------------
#dashboard-service.yaml 服务
vim dashboard-service.yaml 
apiVersion: v1
kind: Service				#控制器名称
metadata:name: kubernetes-dashboardnamespace: kube-systemlabels:k8s-app: kubernetes-dashboardkubernetes.io/cluster-service: "true"addonmanager.kubernetes.io/mode: Reconcile
spec:type: NodePort			#提供的形式（访问node节点提供出来的端口，即nodeportselector:k8s-app: kubernetes-dashboardports:- port: 443				#内部提供targetPort: 8443			#Pod内部端口nodePort: 30001			#节点对外提供的端口（映射端口）#创建dashboard-service.yaml资源
kubectl create -f dashboard-service.yaml 
kubectl get service -n kube-system
------------------------------------------------------------------------
#查看pod资源
kubectl get pods,svc -n kube-system#查看资源分配的位置
kubectl get pods -n kube-system -o wide#查看此pod资源的日志
kubectl create clusterrolebinding cluster-system-anonymous --clusterrole=cluster-admin --user=system:anonymous
clusterrolebinding.rbac.authorization.k8s.io/cluster-system-anonymous created
kubectl logs kubernetes-dashboard-65f974f565-bh5zh -n kube-system

二、证书自签

vim dashboard-cert.sh
cat > dashboard-csr.json <<EOF	#创建json格式的csr签名文件
{"CN": "Dashboard","hosts": [],"key": {"algo": "rsa","size": 2048},"names": [{"C": "CN","L": "BeiJing","ST": "BeiJing"}]
}
EOFK8S_CA=$1
#以下产生CA证书
cfssl gencert -ca=$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#删除原本的证书凭据
kubectl delete secret kubernetes-dashboard-certs -n kube-system
#重新创建一个证书凭据
kubectl create secret generic kubernetes-dashboard-certs --from-file=./ -n kube-system
------》wq#生成证书
bash dashboard-cert.sh /root/k8s/k8s-cert/#编辑dashboard-controller.yaml，指向证书位置，完成证书自签
vim dashboard-controller.yaml 
----47行左右添加/修改args:# PLATFORM-SPECIFIC ARGS HERE- --auto-generate-certificates- --tls-key-file=dashboard-key.pem- --tls-cert-file=dashboard.pem#重新部署
kubectl apply -f dashboard-controller.yaml#需要注意一个问题，在重新部署的时候，资源可能会分配到其他节点，再次查看pod资源位置
kubectl get pods -n kube-system -o wide#生成令牌 k8s-admin.yaml
vim k8s-admin.yaml 
apiVersion: v1
kind: ServiceAccount
metadata:name: dashboard-admin		#创建dashboard-admin的资源，相当于一个管理员账户namespace: kube-system
---
kind: ClusterRoleBinding	#绑定群集用户角色
apiVersion: rbac.authorization.k8s.io/v1beta1
metadata:name: dashboard-admin		#群集用户角色其实就是管理员的身份
subjects:- kind: ServiceAccountname: dashboard-adminnamespace: kube-system
roleRef:kind: ClusterRolename: cluster-adminapiGroup: rbac.authorization.k8s.io#先查看secret(安全角色)的命名空间中的资源
kubectl get secret -n kube-system#生成令牌
kubectl create -f k8s-admin.yaml #再次查看secret资源
kubectl get secret -n kube-system#详细查看令牌信息
kubectl describe secret dashboard-admin-token-dpjdk -n kube-system
（最下方为token令牌，进行复制，登录web控制台需要使用）

本文来自互联网用户投稿，文章观点仅代表作者本人，不代表本站立场，不承担相关法律责任。如若转载，请注明出处。 如若内容造成侵权/违法违规/事实不符，请点击【内容举报】进行投诉反馈！