Kubernetes1.5 Integrated Dashboard

Kubernetes1.5 Integrated Dashboard

Configuring the Kubernetes dashboard is relatively straightforward. Similarly, only need to obtain the Dashboard-controller.yaml and Dashboard-service.yaml files from the source code, slightly modify can:

wget Https://rawgit.com/kubernetes/kubernetes/master/cluster/addons/dashboard/dashboard-controller.yamlwget Https://rawgit.com/kubernetes/kubernetes/master/cluster/addons/dashboard/dashboard-service.yaml

Modify the Dashboard-controller.yaml as follows:

Kind:deploymentapiversion:extensions/v1beta1metadata:labels:app:kubernetes-dashboard Name:kubernetes-dashboard Namespace:kube-systemspec:replicas:1 revisionhistorylimit:10 Selector:matchlabels:app:kubernetes-dashbo ARD Template:metadata:labels:app:kubernetes-dashboard # Comment The following annotation if DASHB          Oard must not being deployed on Master annotations:scheduler.alpha.kubernetes.io/tolerations: |              [{"Key": "Dedicated", "operator": "Equal", "Value": "Master", "Effect": "Noschedule"}] spec:containers:-Name:kubernetes-dashboard ima ge:myhub.fdccloud.com/library/kubernetes-dashboard-amd64:v1.5.1 imagepullpolicy:always ports:-Con tainerport:9090 protocol:tcp args: # Uncomment the following line to manually specify Kubernete s API Server Host # If Not specified, Dashboard would attempt to auto discover the API server and connect # to it. Uncomment only if the default does isn't work.
#额外增加---apiserver-host=http://10.5.10.116:8080 LivenessProbe:httpGet:path:/ port:9090 initialdelayseconds:30 timeoutseconds:30

Dashboard-service.yaml do not need to modify, here directly to the source of the sample files:

Kind:ServiceapiVersion:v1metadata:  Labels:    app:kubernetes-dashboard  Name:kubernetes-dashboard  Namespace:kube-systemspec:  type:nodeport  ports:  -port:80    targetport:9090  selector:    App:kubernetes-dashboard

To perform a startup:

Kubectl create-f dashboard-controller.yamlkubectl create-f Dashboard-service.yaml

Once started, you can view the nodeport of the map by following these instructions:

[[email protected] kubernetes]# kubectl Get svc--namespace=kube-systemname                   cluster-ip     external-ip   PORT ( S)         agekube-dns               10.254.0.100   <none>        53/udp,53/tcp   5hkubernetes-dashboard   10.254.68.60   <nodes>       80:30097/tcp    1d

The following access addresses are available for access:

http://10.5.10.116:8080/uihttp://10.5.10.116:30097

Dashboard interface

Error Description:

During the actual configuration process, it was found that dashboard could not be started, and the pod log was viewed through KUBECTL logs as follows:

# Kubectl Logs--namespace=kube-system < container name >

Using HTTP Port:9090error While initializing connection to Kubernetes Apiserver. This likely means, the cluster is Misconfigurhas invalid apiserver certificates or service accounts configuration ) or the--apiserver-host param points to a ser is not exist. Reason:invalid configuration:no configuration has been providedrefer to the troubleshooting guide for more information: Https://github.com/kubernetes/dashboard/blob/master/docs/uubleshooting.md

This error is due to the need to add the following parameters to the dashboard startup args parameter:

--apiserver-host=http://10.5.10.116:8080

In addition, we found that this dashboard visit does not have any authentication and authorization mechanism, and the follow-up will be dedicated to Kubernetes certification mechanism to do the relevant instructions.

Kubernetes1.5 Integrated Dashboard