Official website https://kubernetes.io/zh/docs/tasks/access-application-cluster/web-ui-dashboard/
Let's first look at an effect diagram of successful deployment. As the web UI of k8s, dashboard can facilitate us to manage k8s clusters and applications.
1 kubernetes-dashboard.yaml file
apiVersion: v1
kind: Secret
metadata:
labels:
k8s-app: kubernetes-dashboard
name: kubernetes-dashboard-certs
namespace: kube-system
type: Opaque
---
apiVersion: v1
kind: ServiceAccount
metadata:
labels:
k8s-app: kubernetes-dashboard
name: kubernetes-dashboard
namespace: kube-system
---
kind: Role
apiVersion: rbac.authorization.k8s.io/v1
metadata:
name: kubernetes-dashboard-minimal
namespace: kube-system
rules:
- apiGroups: [""]
resources: ["secrets"]
verbs: ["create"]
- apiGroups: [""]
resources: ["configmaps"]
verbs: ["create"]
- apiGroups: [""]
resources: ["secrets"]
resourceNames: ["kubernetes-dashboard-key-holder", "kubernetes-dashboard-certs"]
verbs: ["get", "update", "delete"]
- apiGroups: [""]
resources: ["configmaps"]
resourceNames: ["kubernetes-dashboard-settings"]
verbs: ["get", "update"]
- 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: ClusterRoleBinding
metadata:
name: kubernetes-dashboard-minimal
namespace: kube-system
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: ClusterRole
name: cluster-admin
subjects:
- kind: ServiceAccount
name: kubernetes-dashboard
namespace: kube-system
---
kind: Deployment
apiVersion: apps/v1
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
ports:
- containerPort: 8443
protocol: TCP
args:
- --auto-generate-certificates
volumeMounts:
- name: kubernetes-dashboard-certs
mountPath: /certs
- 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
tolerations:
- key: node-role.kubernetes.io/master
effect: NoSchedule
---
kind: Service
apiVersion: v1
metadata:
labels:
k8s-app: kubernetes-dashboard
name: kubernetes-dashboard
namespace: kube-system
spec:
type: NodePort
ports:
- port: 443
targetPort: 8443
nodePort: 31080
selector:
k8s-app: kubernetes-dashboard2 Download the docker image and import it to the local, so that because of the local existence, the foreign warehouse will not pull the image and cause the timeout to pull down.
Link: https://pan.baidu.com/s/1J0oebrRxKN3o1q-nnEUFcw Extraction code: fio8
because I don’t know which node to deploy on, so all node nodes import the image
docker load < k8s.gcr.io#kubernetes-dashboard-amd64.tar3 Create dashboard
kubectl create -f kubernetes-dashboard.yaml4 View
kubectl get pods -n kube-system -o wide
5 visit
Use https://10.238.162.34:31080/
Click to accept the risk and continue
Get token
# kubectl -n kube-system describe $(kubectl -n kube-system get secret -n kube-system -o name | grep namespace) | grep token
Name: namespace-controller-token-pb2zr
Type: kubernetes.io/service-account-token
token: eyJhbGciOiJSUzI1NiIsImtpZCI6IlB3OWJyUkxqejBWenJ5eTI1ejdxU2gzcVBvTTJYUXBPdkZGN3ZLQ0s1ZU0ifQ.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.eaCMquHlzVv-rziWC1F6_QcnyQzqYbbzzi0aZotlNx3QvSL9VgHXXYUqfZs9l2S0JdJA5nu4SSKDTU6846FFD0EXKXxq9PSFx1fXrodTn4n_ISkwFOlLXoCH0x6vV8mx9KmROQ7UJ9JMF0FkGs-PlIo-ZSqz9Z6dTYU4KbVk8pvHXOUfSAt9t2lwMup1QZxwokBfGlvu_jiA8GG-vcoOr9YI-OnaXFxgAkdVozJu0ouRMNR0MWdaIhmoELbyO6fGaqvh4PXyLl6g68JlP-vBljFaeOz8voA9sj7lsmFZVImJ4A0Icj_IxM7hfGJFo7ILyPddePP3kvpd9pj8h3Y4tg Select the token, after pasting
Error 1 k8s pod status is ContainerCreating
kubectl get pods -n kube-system -o wide
kubectl describe pod kubernetes-dashboard-79d78c59fb-bz7n4 --namespace=kube-system
Failed to create pod sandbox: rpc error: code = Unknown desc = failed to set up sandbox container "8ce7a06dcbd203b43d356f3125c846258fc8bfa2d396a29216e041f171f233ff" network for pod "kubernetes-dashboard-79d78c59fb-bz7n4": networkPlugin cni failed to set up pod "kubernetes-dashboard-79d78c59fb-bz7n4_kube-system" network: failed to set bridge addr: "cni0" already has an IP address different from 10.244.1.1/24
solve:
Because the error pod is on node1, check the network card on node1
ifconfig
ifconfig cni0 down
ip link delete cni0
https://blog.csdn.net/Wuli_SmBug/article/details/104712653
Error two k8s pod status is ImagePullBackOff
Download images manually
Then all node nodes
docker load < k8s.gcr.io#kubernetes-dashboard-amd64.tar
docker images
kubectl delete -f kubernetes-dashboard.yaml
kubectl create -f kubernetes-dashboard.yaml
kubectl get pods -n kube-system -o wide
It is already running on node2
Error 3 After the Firefox browser outputs ip:port (10.238.162.34:31080), the page displays garbled characters.
Use https://10.238.162.34:31080/
Click to accept the risk and continue
Get token
# kubectl -n kube-system describe $(kubectl -n kube-system get secret -n kube-system -o name | grep namespace) | grep token
Name: namespace-controller-token-pb2zr
Type: kubernetes.io/service-account-token
token: eyJhbGciOiJSUzI1NiIsImtpZCI6IlB3OWJyUkxqejBWenJ5eTI1ejdxU2gzcVBvTTJYUXBPdkZGN3ZLQ0s1ZU0ifQ.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.eaCMquHlzVv-rziWC1F6_QcnyQzqYbbzzi0aZotlNx3QvSL9VgHXXYUqfZs9l2S0JdJA5nu4SSKDTU6846FFD0EXKXxq9PSFx1fXrodTn4n_ISkwFOlLXoCH0x6vV8mx9KmROQ7UJ9JMF0FkGs-PlIo-ZSqz9Z6dTYU4KbVk8pvHXOUfSAt9t2lwMup1QZxwokBfGlvu_jiA8GG-vcoOr9YI-OnaXFxgAkdVozJu0ouRMNR0MWdaIhmoELbyO6fGaqvh4PXyLl6g68JlP-vBljFaeOz8voA9sj7lsmFZVImJ4A0Icj_IxM7hfGJFo7ILyPddePP3kvpd9pj8h3Y4tg Select the token, after pasting
Error four
Clicking on some labels will report an error, possibly because the version is too low.
error_outline Not Found (404)
the server could not find the requested resource
3 秒内重定向到上一个页面……
Command to view logs
kubectl logs -f kubernetes-dashboard-bbfcb94b8-p9m2p -n kube-system
Error resolution refer to https://blog.csdn.net/ppppppushcar/article/details/102608450
https://www.cnblogs.com/wucaiyun1/p/11692204.html
delete
kubectl delete -f kubernetes-dashboard.yaml
View
kubectl get pods -n kube-system -o wide
1.10 version download
docker pull registry.cn-hangzhou.aliyuncs.com/google_containers/kubernetes-dashboard-amd64:v1.10.0
Modify the image in the file kubernetes-dashboard.yaml to registry.cn-hangzhou.aliyuncs.com/google_containers/kubernetes-dashboard-amd64:v1.10.0
Redeploy
kubectl create -f kubernetes-dashboard.yaml
Get token
[root@k8s-master ~]# kubectl -n kube-system describe $(kubectl -n kube-system get secret -n kube-system -o name | grep namespace) | grep token
Name: namespace-controller-token-pb2zr
Type: kubernetes.io/service-account-token
token: eyJhbGciOiJSUzI1NiIsImtpZCI6IlB3OWJyUkxqejBWenJ5eTI1ejdxU2gzcVBvTTJYUXBPdkZGN3ZLQ0s1ZU0ifQ.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.eaCMquHlzVv-rziWC1F6_QcnyQzqYbbzzi0aZotlNx3QvSL9VgHXXYUqfZs9l2S0JdJA5nu4SSKDTU6846FFD0EXKXxq9PSFx1fXrodTn4n_ISkwFOlLXoCH0x6vV8mx9KmROQ7UJ9JMF0FkGs-PlIo-ZSqz9Z6dTYU4KbVk8pvHXOUfSAt9t2lwMup1QZxwokBfGlvu_jiA8GG-vcoOr9YI-OnaXFxgAkdVozJu0ouRMNR0MWdaIhmoELbyO6fGaqvh4PXyLl6g68JlP-vBljFaeOz8voA9sj7lsmFZVImJ4A0Icj_IxM7hfGJFo7ILyPddePP3kvpd9pj8h3Y4tgGoogle browser access
reference
https://blog.csdn.net/java_zyq/article/details/82178152
https://www.cnblogs.com/liugp/p/12115945.html
git address https://github.com/kubernetes/dashboard
Official document