一、Kubernetes集群环境
请参考Kubernetes--学习笔记-安装配置和服务部署-2
https://cnodejs.org/topic/57aa945c476898b472247d90
二，创建kubernetes-dashboard.yaml
在master服务器上创建kubernetes-dashboard.yaml文件，并输入以下内容：
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# Copyright 2015 Google Inc. All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# Configuration to deploy release version of the Dashboard UI.
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#
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# Example usage: kubectl create -f <this_file>
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kind: Deployment
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apiVersion: extensions/v1beta1
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metadata:
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labels:
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app: kubernetes-dashboard
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version: v1. 1.0
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name: kubernetes-dashboard
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namespace: kube- system
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spec:
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replicas: 1
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selector:
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matchLabels:
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app: kubernetes-dashboard
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template:
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metadata:
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labels:
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app: kubernetes-dashboard
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spec:
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containers:
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- name: kubernetes-dashboard
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image: docker.io/mritd/kubernetes-dashboard-amd64
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imagePullPolicy: Always
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ports:
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- containerPort: 9090
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protocol: TCP
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args:
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# Uncomment the following line to manually specify Kubernetes API server Host
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# If not specified, Dashboard will attempt to auto discover the API server and connect
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# to it. Uncomment only if the default does not work.
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- --apiserver-host= 10.11. 3.56: 8080
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livenessProbe:
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httpGet:
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path: /
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port: 9090
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initialDelaySeconds: 30
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timeoutSeconds: 30
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---
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kind: Service
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apiVersion: v1
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metadata:
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labels:
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app: kubernetes-dashboard
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name: kubernetes-dashboard
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namespace: kube-system
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spec:
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type: NodePort
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ports:
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- port: 80
修改以下几项：
image: docker.io/mritd/kubernetes-dashboard-amd64 # 这个镜像在创建之前已docker pull 下载下来，避免网络失败 - --apiserver-host=10.11.3.56:8080 # 这里改成master这的ip地址，不能用master服务器名称，否则会报错失败执行以下命令创建kubernetes-dashboard：
systemctl create -f kubernetes-dashboard.yaml
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[root@master cloud] # kubectl get pods --all-namespaces
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NAMESPACE NAME READY STATUS RESTARTS AGE
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default nginx-pod 1/ 1 Running 0 5h
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kube- system kubernetes-dashboard- 350055417-wf8j1 1/ 1 Running 0 44 m
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[root@master cloud] #
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[root@master cloud] # kubectl describe pods/kubernetes-dashboard-350055417-wf8j1 --namespace="kube-system"
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Name: kubernetes-dashboard -350055417-wf8j1
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Namespace: kube-system
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Node: node -1/ 10.11 .3 .61
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Start Time: Wed, 17 Jan 2018 08: 07: 38 + 0100
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Labels: app=kubernetes-dashboard
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pod-template-hash= 350055417
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Status: Running
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IP: 172.17 .0 .3
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Controllers: ReplicaSet/kubernetes-dashboard -350055417
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Containers:
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kubernetes-dashboard:
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Container ID: docker:// 4fab3e7e09bbd80546aec6f3569b3a59723ef983356e59428879fe06e3359861
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Image: docker.io/mritd/kubernetes-dashboard-amd64
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Image ID: docker-pullable://docker.io/mritd/kubernetes-dashboard-amd64@sha256: 377d905c758d08674fd434e567fbfb4411f64a52090d0de7f64fd70b72b2fbeb
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Port: 9090/TCP
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Args:
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--apiserver-host= 10.11 .3 .56: 8080
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State: Running
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Started: Wed, 17 Jan 2018 08: 07: 43 + 0100
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Ready: True
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Restart Count: 0
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Liveness: http-get http://: 9090/ delay= 30s timeout= 30s period= 10s #success=1 #failure=3
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Volume Mounts: <none>
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Environment Variables: <none>
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Conditions:
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Type Status
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Initialized True
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Ready True
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PodScheduled True
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No volumes.
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QoS Class: BestEffort
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Tolerations: <none>
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Events:
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FirstSeen LastSeen Count From SubObjectPath Type Reason Message
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--------- -------- ----- ---- ------------- -------- ------ -------
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46m 46m 1 {default-scheduler } Normal Scheduled Successfully assigned kubernetes-dashboard -350055417-wf8j1 to node -1
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46m 46m 1 {kubelet node -1} spec.containers{kubernetes-dashboard} Normal Pulling pulling image "docker.io/mritd/kubernetes-dashboard-amd64"
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46m 46m 2 {kubelet node -1} Warning MissingClusterDNS kubelet does not have ClusterDNS IP configured and cannot create Pod using "ClusterFirst" policy. Falling back to DNSDefault policy.
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46m 46m 1 {kubelet node -1} spec.containers{kubernetes-dashboard} Normal Pulled Successfully pulled image "docker.io/mritd/kubernetes-dashboard-amd64"
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46m 46m 1 {kubelet node -1} spec.containers{kubernetes-dashboard} Normal Created Created container with docker id 4fab3e7e09bb; Security:[seccomp=unconfined]
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46m 46m 1 {kubelet node -1} spec.containers{kubernetes-dashboard} Normal Started Started container with docker id 4fab3e7e09bb
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[root@master cloud] #
查看service 信息：
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[root@master cloud] # kubectl describe service/kubernetes-dashboard --namespace="kube-system"
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Name: kubernetes-dashboard
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Namespace: kube- system
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Labels: app=kubernetes-dashboard
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Selector: app=kubernetes-dashboard
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Type: NodePort
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IP: 10.254. 85.224
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Port: <unset> 80/TCP
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NodePort: <unset> 30943/TCP
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Endpoints: 172.17. 0. 3: 9090
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Session Affinity: None
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No events.
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[root@master cloud] #
从kubernetes-dashboard的service详细信息可以看到，该service绑定到了Node节点的30943端口上。现在，通过浏览器访问该端口就能看到Kubernetes的Web UI:
参考链接：
http://blog.csdn.net/u013760355/article/details/70161982
http://blog.csdn.net/zjysource/article/details/52086835
https://blog.csdn.net/harris135/article/details/79086221