kubernetes安装dashboard教程
前提:
kubernetes集群安装完毕
安装:
1.到github获取配置文件
github下面给出方法说使用下面的直接执行就可以了,但是最近不知道为何找不到地址。
kubectl apply -f https://raw.githubusercontent.com/kubernetes/dashboard/v2.4.0/aio/deploy/recommended.yaml 1
上面很明显给出了地址aio/deploy/recommended.yaml 所以我们可以找到配置文件:https://github.com/kubernetes/dashboard/tree/master/aio/deploy
2.把文件下载到本地,重命名为:recommended-2.4.0.yaml
文件内容如下:
# 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.
apiVersion: v1
kind: Namespace
metadata:
name: kubernetes-dashboard
---
apiVersion: v1
kind: ServiceAccount
metadata:
labels:
k8s-app: kubernetes-dashboard
name: kubernetes-dashboard
namespace: kubernetes-dashboard
---
kind: Service
apiVersion: v1
metadata:
labels:
k8s-app: kubernetes-dashboard
name: kubernetes-dashboard
namespace: kubernetes-dashboard
spec:
ports:
- port: 443
targetPort: 8443
selector:
k8s-app: kubernetes-dashboard
---
apiVersion: v1
kind: Secret
metadata:
labels:
k8s-app: kubernetes-dashboard
name: kubernetes-dashboard-certs
namespace: kubernetes-dashboard
type: Opaque
---
apiVersion: v1
kind: Secret
metadata:
labels:
k8s-app: kubernetes-dashboard
name: kubernetes-dashboard-csrf
namespace: kubernetes-dashboard
type: Opaque
data:
csrf: ""
---
apiVersion: v1
kind: Secret
metadata:
labels:
k8s-app: kubernetes-dashboard
name: kubernetes-dashboard-key-holder
namespace: kubernetes-dashboard
type: Opaque
---
kind: ConfigMap
apiVersion: v1
metadata:
labels:
k8s-app: kubernetes-dashboard
name: kubernetes-dashboard-settings
namespace: kubernetes-dashboard
---
kind: Role
apiVersion: rbac.authorization.k8s.io/v1
metadata:
labels:
k8s-app: kubernetes-dashboard
name: kubernetes-dashboard
namespace: kubernetes-dashboard
rules:
# Allow Dashboard to get, update and delete Dashboard exclusive secrets.
- apiGroups: [""]
resources: ["secrets"]
resourceNames: ["kubernetes-dashboard-key-holder", "kubernetes-dashboard-certs", "kubernetes-dashboard-csrf"]
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.
- apiGroups: [""]
resources: ["services"]
resourceNames: ["heapster", "dashboard-metrics-scraper"]
verbs: ["proxy"]
- apiGroups: [""]
resources: ["services/proxy"]
resourceNames: ["heapster", "http:heapster:", "https:heapster:", "dashboard-metrics-scraper", "http:dashboard-metrics-scraper"]
verbs: ["get"]
---
kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1
metadata:
labels:
k8s-app: kubernetes-dashboard
name: kubernetes-dashboard
rules:
# Allow Metrics Scraper to get metrics from the Metrics server
- apiGroups: ["metrics.k8s.io"]
resources: ["pods", "nodes"]
verbs: ["get", "list", "watch"]
---
apiVersion: rbac.authorization.k8s.io/v1
kind: RoleBinding
metadata:
labels:
k8s-app: kubernetes-dashboard
name: kubernetes-dashboard
namespace: kubernetes-dashboard
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: Role
name: kubernetes-dashboard
subjects:
- kind: ServiceAccount
name: kubernetes-dashboard
namespace: kubernetes-dashboard
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
name: kubernetes-dashboard
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: ClusterRole
name: kubernetes-dashboard
subjects:
- kind: ServiceAccount
name: kubernetes-dashboard
namespace: kubernetes-dashboard
---
kind: Deployment
apiVersion: apps/v1
metadata:
labels:
k8s-app: kubernetes-dashboard
name: kubernetes-dashboard
namespace: kubernetes-dashboard
spec:
replicas: 1
revisionHistoryLimit: 10
selector:
matchLabels:
k8s-app: kubernetes-dashboard
template:
metadata:
labels:
k8s-app: kubernetes-dashboard
spec:
containers:
- name: kubernetes-dashboard
image: kubernetesui/dashboard:v2.4.0
imagePullPolicy: Always
ports:
- containerPort: 8443
protocol: TCP
args:
- --auto-generate-certificates
- --namespace=kubernetes-dashboard
# 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
securityContext:
allowPrivilegeEscalation: false
readOnlyRootFilesystem: true
runAsUser: 1001
runAsGroup: 2001
volumes:
- name: kubernetes-dashboard-certs
secret:
secretName: kubernetes-dashboard-certs
- name: tmp-volume
emptyDir: {}
serviceAccountName: kubernetes-dashboard
nodeSelector:
"kubernetes.io/os": linux
# Comment the following tolerations if Dashboard must not be deployed on master
tolerations:
- key: node-role.kubernetes.io/master
effect: NoSchedule
---
kind: Service
apiVersion: v1
metadata:
labels:
k8s-app: dashboard-metrics-scraper
name: dashboard-metrics-scraper
namespace: kubernetes-dashboard
spec:
ports:
- port: 8000
targetPort: 8000
selector:
k8s-app: dashboard-metrics-scraper
---
kind: Deployment
apiVersion: apps/v1
metadata:
labels:
k8s-app: dashboard-metrics-scraper
name: dashboard-metrics-scraper
namespace: kubernetes-dashboard
spec:
replicas: 1
revisionHistoryLimit: 10
selector:
matchLabels:
k8s-app: dashboard-metrics-scraper
template:
metadata:
labels:
k8s-app: dashboard-metrics-scraper
spec:
securityContext:
seccompProfile:
type: RuntimeDefault
containers:
- name: dashboard-metrics-scraper
image: kubernetesui/metrics-scraper:v1.0.7
ports:
- containerPort: 8000
protocol: TCP
livenessProbe:
httpGet:
scheme: HTTP
path: /
port: 8000
initialDelaySeconds: 30
timeoutSeconds: 30
volumeMounts:
- mountPath: /tmp
name: tmp-volume
securityContext:
allowPrivilegeEscalation: false
readOnlyRootFilesystem: true
runAsUser: 1001
runAsGroup: 2001
serviceAccountName: kubernetes-dashboard
nodeSelector:
"kubernetes.io/os": linux
# Comment the following tolerations if Dashboard must not be deployed on master
tolerations:
- key: node-role.kubernetes.io/master
effect: NoSchedule
volumes:
- name: tmp-volume
emptyDir: {}
3.部署:
[root@k8s-master hl]# kubectl apply -f recommended-2.4.0.yaml namespace/kubernetes-dashboard 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/kubernetes-dashboard created clusterrolebinding.rbac.authorization.k8s.io/kubernetes-dashboard created deployment.apps/kubernetes-dashboard created service/dashboard-metrics-scraper created deployment.apps/dashboard-metrics-scraper created
4.暴露svc端口
找到dashboard的SVC,发现是ClusterIP类型的,因为我想在宿主机访问,所以要暴露端口
[root@k8s-master hl]# kubectl get svc -n kubernetes-dashboard NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE dashboard-metrics-scraper ClusterIP 10.100.22.138 <none> 8000/TCP 7s kubernetes-dashboard ClusterIP 10.107.237.41 <none> 443/TCP 7s
暴露端口: 修改svc为NodePort类型:
[root@k8s-master hl]# kubectl patch svc kubernetes-dashboard -p '{"spec":{"type":"NodePort"}}' -n kubernetes-dashboard
service/kubernetes-dashboard patched
找到暴露端口为:32375(注意是https)
[root@k8s-master hl]# kubectl get svc -n kubernetes-dashboard NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE dashboard-metrics-scraper ClusterIP 10.100.22.138 <none> 8000/TCP 65s kubernetes-dashboard NodePort 10.107.237.41 <none> 443:32375/TCP 65s
这样在我们宿主机浏览器就能访问: https://192.168.217.185:32375/ 显示不安全,在当前页面用键盘输入 thisisunsafe ,不是在地址栏输入,就直接敲键盘就行了,之后为登录页面。
登录之后需要人认证,认证有两种方式Kubeconfig模式和Token模式: 我使用的token模式:
5.创建token
我是基于最高权限admin创建的,配置文件admin-role.yaml内容如下:
kind: ClusterRoleBinding apiVersion: rbac.authorization.k8s.io/v1 metadata: name: admin annotations: rbac.authorization.kubernetes.io/autoupdate: "true" roleRef: kind: ClusterRole name: cluster-admin apiGroup: rbac.authorization.k8s.io subjects: - kind: ServiceAccount name: admin namespace: kube-system --- apiVersion: v1 kind: ServiceAccount metadata: name: admin namespace: kube-system labels: kubernetes.io/cluster-service: "true" addonmanager.kubernetes.io/mode: Reconcile
创建secret:
[root@k8s-master hl]# kubectl create -f admin-role.yaml clusterrolebinding.rbac.authorization.k8s.io/admin created serviceaccount/admin created
找到secret:
[root@k8s-master hl]# kubectl -n kube-system get secret|grep admin-token admin-token-wh27j kubernetes.io/service-account-token 3 19s
获取token:
[root@k8s-master hl]# kubectl -n kube-system get secret|grep admin-token
admin-token-wh27j kubernetes.io/service-account-token 3 19s
[root@k8s-master hl]# kubectl -n kube-system describe secret admin-token-wh27j
Name: admin-token-wh27j
Namespace: kube-system
Labels: <none>
Annotations: kubernetes.io/service-account.name: admin
kubernetes.io/service-account.uid: 9094d849-7098-4e24-9612-e490184e6bfc
Type: kubernetes.io/service-account-token
Data
====
token: eyJhbGciOiJSUzI1NiIsImtpZCI6IkF2YUJiYmNNTWNvMFFzSk9fQlVPd3pwR0l1aXdMWDZMR2Q2aHF5SG5TTG8ifQ.eyJpc3MiOiJrdWJlcm5ldGVzL3NlcnZpY2VhY2NvdW50Iiwia3ViZXJuZXRlcy5pby9zZXJ2aWNlYWNjb3VudC9uYW1lc3BhY2UiOiJrdWJlLXN5c3RlbSIsImt1YmVybmV0ZXMuaW8vc2VydmljZWFjY291bnQvc2VjcmV0Lm5hbWUiOiJhZG1pbi10b2tlbi13aDI3aiIsImt1YmVybmV0ZXMuaW8vc2VydmljZWFjY291bnQvc2VydmljZS1hY2NvdW50Lm5hbWUiOiJhZG1pbiIsImt1YmVybmV0ZXMuaW8vc2VydmljZWFjY291bnQvc2VydmljZS1hY2NvdW50LnVpZCI6IjkwOTRkODQ5LTcwOTgtNGUyNC05NjEyLWU0OTAxODRlNmJmYyIsInN1YiI6InN5c3RlbTpzZXJ2aWNlYWNjb3VudDprdWJlLXN5c3RlbTphZG1pbiJ9.thmFGeLLLn3XnqyvR9_wORi1MVKEUN-j223zAZj_c7FC7G1U6PbTxhWukMtbgumL8AHpNT11Jidz0PpoWOpycM2xzShEm0YiHlbIW-ZXkqIGbgxuZfU-2ZefHgmXT42LOuvPNEmX6MGjmZlpJKTE4oKf46lq1mf__fsNxAIWFBHE58f041DLX-lnLcZgmcxMvnZiOb1TJE6ruS7MUNA8YKdW2rWJYHniFX1WCam4Z-drZXDhPywlrYMtUxQsFTljIMsvL9TZbOUS3nLshr7Q_aeBMN_J_P_74n4l9KL8c0TilYp11JYPtIUXNkccUGB6n-ZbAD7bF1tgZFwD7nhwbQ
ca.crt: 1066 bytes
namespace: 11 bytes
或者直接获取token
[root@master token]# kubectl -n kube-system get secret admin-token-ftkl9 -o jsonpath={.data.token}|base64 -d
eyJhbGciOiJSUzI1NiIsImtpZCI6IkFPY0FvODhsbVU5SUxDQmN4RUF3eUdfbWE2LW1Fc09EY3BMekEzUDg2N2sifQ.eyJpc3MiOiJrdWJlcm5ldGVzL3NlcnZpY2VhY2NvdW50Iiwia3ViZXJuZXRlcy5pby9zZXJ2aWNlYWNjb3VudC9uYW1lc3BhY2UiOiJrdWJlLXN5c3RlbSIsImt1YmVybmV0ZXMuaW8vc2VydmljZWFjY291bnQvc2VjcmV0Lm5hbWUiOiJhZG1pbi10b2tlbi1mdGtsOSIsImt1YmVybmV0ZXMuaW8vc2VydmljZWFjY291bnQvc2VydmljZS1hY2NvdW50Lm5hbWUiOiJhZG1pbiIsImt1YmVybmV0ZXMuaW8vc2VydmljZWFjY291bnQvc2VydmljZS1hY2NvdW50LnVpZCI6IjlhMjQ3YjFkLWY5ZDktNGQ0NS04MTNlLTJhNjQ0OGM3YTI3OSIsInN1YiI6InN5c3RlbTpzZXJ2aWNlYWNjb3VudDprdWJlLXN5c3RlbTphZG1pbiJ9.eI2iqcL_LMLXDTbKhPzn2fiiNIaRavzB8-fOrU_xFOFpmUbrUw98HXogMBdmVIWbJ3z83KUvVC_-oANHALUC-QpCqjOBGFmQSYIRPAJ_Fwq9qK80Yqc3SkXjbXAchlgBeIF-pUrr8eoemvNTPyJgxj8uA4ewHI2StcWIFpvLmxNzFB7xVc1_ta9nQ7BfIVzjYB9m8qVqO4gB8SNKXHVUa8bHykDy6Y4WygZ8fdbaoC8-9Yb04ukAuHlj4Hif7gB2CLLVQ97AbL6ygMMUUja-0zM-PgyUUaV4PEh_Kd1p_ophzbCHL-8QivB6edwSiMgbFgH60LnqMf5IJYuQK3gYUw
12
将token填写到登录界面的token中:
然后我们就能访问了:



















