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部署Kubernetes的dashboard

NFT艺术之家 2019-10-14
214


标签: kubernetes、kubernetes-dashboard

先决条件

  • 一个健康的Kubernetes集群

  • Nginx-ingress(如果是traefik只要稍微改一下ingress的annotations)


准备所需要的YAML文件

kubernetes-dashboard.yaml


# Copyright 2017 The Kubernetes Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.


# ------------------- Dashboard Secret ------------------- #


apiVersion: v1
kind: Secret
metadata:
labels:
k8s-app: kubernetes-dashboard
name: kubernetes-dashboard-certs
namespace: kube-system
type: Opaque


---
# ------------------- Dashboard Service Account ------------------- #


apiVersion: v1
kind: ServiceAccount
metadata:
labels:
k8s-app: kubernetes-dashboard
name: kubernetes-dashboard
namespace: kube-system


---
# ------------------- Dashboard Role & Role Binding ------------------- #


kind: Role
apiVersion: rbac.authorization.k8s.io/v1
metadata:
name: kubernetes-dashboard-minimal
namespace: kube-system
rules:
# Allow Dashboard to create 'kubernetes-dashboard-key-holder' secret.
- apiGroups: [""]
resources: ["secrets"]
verbs: ["create"]
# Allow Dashboard to create 'kubernetes-dashboard-settings' config map.
- apiGroups: [""]
resources: ["configmaps"]
verbs: ["create"]
# 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-minimal
namespace: kube-system
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: Role
name: kubernetes-dashboard-minimal
subjects:
- kind: ServiceAccount
name: kubernetes-dashboard
namespace: kube-system


---
# ------------------- Dashboard Deployment ------------------- #


kind: Deployment
apiVersion: apps/v1beta2
metadata:
labels:
k8s-app: kubernetes-dashboard
name: kubernetes-dashboard
namespace: kube-system
spec:
replicas: 1
revisionHistoryLimit: 10
selector:
matchLabels:
k8s-app: kubernetes-dashboard
template:
metadata:
labels:
k8s-app: kubernetes-dashboard
spec:
containers:
- name: kubernetes-dashboard
#image: k8s.gcr.io/kubernetes-dashboard-amd64:v1.8.3
#image: mirrorgooglecontainers/kubernetes-dashboard-amd64:v1.10.1
image: registry-vpc.cn-hangzhou.aliyuncs.com/xmk8s/kubernetes-dashboard-amd64:v1.10.1
ports:
- containerPort: 8443
protocol: TCP
args:
- --auto-generate-certificates
- --token-ttl=0
# Uncomment the following line to manually specify Kubernetes API server Host
# If not specified, Dashboard will attempt to auto discover the API server and connect
# to it. Uncomment only if the default does not work.
# - --apiserver-host=http://my-address:port
volumeMounts:
- name: kubernetes-dashboard-certs
mountPath: /certs
# Create on-disk volume to store exec logs
- mountPath: /tmp
name: tmp-volume
livenessProbe:
httpGet:
scheme: HTTPS
path: /
port: 8443
initialDelaySeconds: 30
timeoutSeconds: 30
volumes:
- name: kubernetes-dashboard-certs
secret:
secretName: kubernetes-dashboard-certs
- name: tmp-volume
emptyDir: {}
serviceAccountName: kubernetes-dashboard
# Comment the following tolerations if Dashboard must not be deployed on master
tolerations:
- key: node-role.kubernetes.io/master
effect: NoSchedule


---
# ------------------- Dashboard Service ------------------- #


kind: Service
apiVersion: v1
metadata:
labels:
k8s-app: kubernetes-dashboard
kubernetes.io/cluster-service: "true"
addonmanager.kubernetes.io/mode: Reconcile
name: kubernetes-dashboard
namespace: kube-system
spec:
ports:
- port: 443
targetPort: 8443
selector:
k8s-app: kubernetes-dashboard
type: NodePort
复制


ui-admin-rbac.yaml

kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1
metadata:
name: ui-admin
rules:
- apiGroups:
- ""
resources:
- services
- services/proxy
verbs:
- '*'


---
apiVersion: rbac.authorization.k8s.io/v1
kind: RoleBinding
metadata:
name: ui-admin-binding
namespace: kube-system
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: ClusterRole
name: ui-admin
subjects:
- apiGroup: rbac.authorization.k8s.io
kind: User
name: admin
复制


admin-user-sa-rbac.yaml

apiVersion: v1
kind: ServiceAccount
metadata:
name: admin-user
namespace: kube-system


---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
name: admin-user
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: ClusterRole
name: cluster-admin
subjects:
- kind: ServiceAccount
name: admin-user
namespace: kube-system


复制

dashboard-ui.yaml

apiVersion: v1
kind: Service
metadata:
name: dashboard-ui
namespace: kube-system
spec:
selector:
k8s-app: kubernetes-dashboard
ports:
- name: web
port: 443
targetPort: 8443
---
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
name: dashboard-ui
namespace: kube-system
annotations:
kubernetes.io/ingress.class: nginx
certmanager.k8s.io/issuer: "letsencrypt-prod"
certmanager.k8s.io/acme-challenge-type: http01
ingress.kubernetes.io/ssl-passthrough: "true"
nginx.org/ssl-backends: "kubernetes-dashboard"
kubernetes.io/ingress.allow-http: "false"
nginx.ingress.kubernetes.io/secure-backends: "true"
nginx.ingress.kubernetes.io/backend-protocol: "HTTPS"
#nginx.ingress.kubernetes.io/whitelist-source-range:
spec:
tls:
- hosts:
- <xxxxxx>
secretName: <xxxxxx>
rules:
- host: <xxxxxx>
http:
paths:
- path: /
backend:
serviceName: kubernetes-dashboard
servicePort: 443
复制

read-user-sa-rbac.yaml

apiVersion: v1
kind: ServiceAccount
metadata:
name: dashboard-read-user
namespace: kube-system


---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
name: dashboard-read-binding
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: ClusterRole
name: dashboard-read-clusterrole
subjects:
- kind: ServiceAccount
name: dashboard-read-user
namespace: kube-system


---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
name: dashboard-read-clusterrole
rules:
- apiGroups:
- ""
resources:
- configmaps
- endpoints
- persistentvolumeclaims
- pods
- replicationcontrollers
- replicationcontrollers/scale
- serviceaccounts
- services
- nodes
- persistentvolumeclaims
- persistentvolumes
verbs:
- get
- list
- watch
- apiGroups:
- ""
resources:
- bindings
- events
- limitranges
- namespaces/status
- pods/log
- pods/status
- replicationcontrollers/status
- resourcequotas
- resourcequotas/status
verbs:
- get
- list
- watch
- apiGroups:
- ""
resources:
- namespaces
verbs:
- get
- list
- watch
- apiGroups:
- apps
resources:
- daemonsets
- deployments
- deployments/scale
- replicasets
- replicasets/scale
- statefulsets
verbs:
- get
- list
- watch
- apiGroups:
- autoscaling
resources:
- horizontalpodautoscalers
verbs:
- get
- list
- watch
- apiGroups:
- batch
resources:
- cronjobs
- jobs
verbs:
- get
- list
- watch
- apiGroups:
- extensions
resources:
- daemonsets
- deployments
- deployments/scale
- ingresses
- networkpolicies
- replicasets
- replicasets/scale
- replicationcontrollers/scale
verbs:
- get
- list
- watch
- apiGroups:
- policy
resources:
- poddisruptionbudgets
verbs:
- get
- list
- watch
- apiGroups:
- networking.k8s.io
resources:
- networkpolicies
verbs:
- get
- list
- watch
- apiGroups:
- storage.k8s.io
resources:
- storageclasses
- volumeattachments
verbs:
- get
- list
- watch
- apiGroups:
- rbac.authorization.k8s.io
resources:
- clusterrolebindings
- clusterroles
- roles
- rolebindings
verbs:
- get
- list
- watch
复制


ui-read-rbac.yaml

kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1
metadata:
name: ui-read
rules:
- apiGroups:
- ""
resources:
- services
- services/proxy
verbs:
- get
- list
- watch


---
apiVersion: rbac.authorization.k8s.io/v1
kind: RoleBinding
metadata:
name: ui-read-binding
namespace: kube-system
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: ClusterRole
name: ui-read
subjects:
- apiGroup: rbac.authorization.k8s.io
kind: User
name: readonly
复制


部署

  1. 以上总共6个YAML文件,放在同一个目录中应用即可

kubectl apply -f .
复制


  1. 如果不想给dashboard配置证书那就直接通过NodePort访问,这里要注意一些,不管证书可不可信,一定要通过443端口访问,否则哪怕是访问到了输入token的页面了,输入了正确的token也不能成功登录的。

获取登录Token

kubectl describe  -n kube-system secrets admin-user-token-<这里是一个hash值>
复制

这样获取的是admin权限的对dashboard上面的pod、deployment、rc等有删除修改权限,


接下来获取只读权限

kubectl describe  -n kube-system secrets dashboard-read-user-token-<这里是一个hash值>
复制



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