How to access Kubernetes UI via browser?

Question

I have installed Kubernetes using contrib/ansible scripts. When I run cluster-info:

[osboxes@kube-master-def ~]$ kubectl cluster-info
Kubernetes master is running at http://localhost:8080
Elasticsearch is running at http://localhost:8080/api/v1/proxy/namespaces/kube-system/services/elasticsearch-logging
Heapster is running at http://localhost:8080/api/v1/proxy/namespaces/kube-system/services/heapster
Kibana is running at http://localhost:8080/api/v1/proxy/namespaces/kube-system/services/kibana-logging
KubeDNS is running at http://localhost:8080/api/v1/proxy/namespaces/kube-system/services/kube-dns
kubedash is running at http://localhost:8080/api/v1/proxy/namespaces/kube-system/services/kubedash
Grafana is running at http://localhost:8080/api/v1/proxy/namespaces/kube-system/services/monitoring-grafana
InfluxDB is running at http://localhost:8080/api/v1/proxy/namespaces/kube-system/services/monitoring-influxdb

The cluster is exposed on localhost with insecure port, and exposed on secure port 443 via ssl

kube 18103 1 0 12:20 ? 00:02:57 /usr/bin/kube-controller-manager --logtostderr=true --v=0 --master=https://10.57.50.161:443 -- kubeconfig=/etc/kubernetes/controller-manager.kubeconfig --service-account-private-key-file=/etc/kubernetes/certs/server.key --root-ca-file=/etc/kubernetes/certs/ca.crt kube 18217 1 0 12:20 ? 00:00:15 /usr/bin/kube-scheduler --logtostderr=true --v=0 --master=https://10.57.50.161:443 --kubeconfig=/etc/kubernetes/scheduler.kubeconfig root 27094 1 0 12:21 ? 00:00:00 /bin/bash /usr/libexec/kubernetes/kube-addons.sh kube 27300 1 1 12:21 ? 00:05:36 /usr/bin/kube-apiserver --logtostderr=true --v=0 --etcd-servers=http://10.57.50.161:2379 --insecure-bind-address=127.0.0.1 --secure-port=443 --allow-privileged=true --service-cluster-ip-range=10.254.0.0/16 --admission-control=NamespaceLifecycle,NamespaceExists,LimitRanger,SecurityContextDeny,ServiceAccount,ResourceQuota --tls-cert-file=/etc/kubernetes/certs/server.crt --tls-private-key-file=/etc/kubernetes/certs/server.key --client-ca-file=/etc/kubernetes/certs/ca.crt --token-auth-file=/etc/kubernetes/tokens/known_tokens.csv --service-account-key-file=/etc/kubernetes/certs/server.crt

I have copied the certificates from kube-master machine to my local machine, I have installed the ca root certificate. The chrome/safari browsers are accepting the ca root certificate. When I'm trying to access the https://10.57.50.161/ui I'm getting the 'Unauthorized'

How can I access the kubernetes ui?

Answer 1

You can use kubectl proxy.

Depending if you are using a config file, via command-line run

kubectl proxy

or

kubectl --kubeconfig=kubeconfig proxy

You should get a similar response

Starting to serve on 127.0.0.1:8001

Now open your browser and navigate to

http://127.0.0.1:8001/ui/ (deprecated, see kubernetes/dashboard)
http://localhost:8001/api/v1/namespaces/kube-system/services/https:kubernetes-dashboard:/proxy/

You need to make sure the ports match up.

Answer 2

This works for me that you can access from network

kubectl proxy --address 0.0.0.0 --accept-hosts '.*'