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Kubernets搭建Kubernetes-dashboard

接上篇文章,在已经部署好Kubernetes的基础上部署kubernetes-dashboard,它是官方提供的用户管理Kubernets集群可视化工具;部署dashboard其实和在kubernets部署其他的应用一样,创建dashboard所需的Replication Controller、Service服务即可;

注意Kubernets的Overlay Network要正常工作,每个节点都已经启动Flannel,并且docker启动时配置了Flannel提供的子网,或使用其他方式保证Container之间的连通,否则dashboard将无法正常工作;

Namespace

使用默认的Namespace也是可以得,因为dashboard算是属于系统应用所以这里使用Namespace把dashboard与其他App进行隔离,建议线上正式的Kubernetes环境都要使用Namespace;创建kube-namespace.yaml文件,内容如下:

apiVersion: v1   kind: Namespace   metadata:   name: kube-system

Replication Controller

Replication Controller用于保证pod期望状态与当前状态一致,还可对pod数量弹性伸缩,这里主要是保证dashboard的正常运行;创建kube-dashboard-rc.yaml文件:内容如下:

apiVersion: v1 kind: ReplicationController metadata: # Keep the name in sync with image version and # gce/coreos/kube-manifests/addons/dashboard counterparts name: kubernetes-dashboard-latest namespace: kube-system labels:   k8s-app: kubernetes-dashboard version: latest kubernetes.io/cluster-service: "true" spec:   replicas: 1 selector:   k8s-app: kubernetes-dashboard template:   metadata:     labels:       k8s-app: kubernetes-dashboard       version: latest       kubernetes.io/cluster-service: "true"   spec:     containers:     - name: kubernetes-dashboard       image: 192.168.2.144:5000/kkubernetes-dashboard-amd64       resources:         # keep request = limit to keep this container in guaranteed class         limits:           cpu: 100m           memory: 50Mi         requests:           cpu: 100m           memory: 50Mi       ports:       - containerPort: 9090       args:        -  --apiserver-host=http://192.168.2.143:8080       livenessProbe:         httpGet:           path: /           port: 9090         initialDelaySeconds: 30         timeoutSeconds: 30

由于kubernetes-dashboard-amd64如要被墙,这里下了index.alauda.cn/googlecontainer/kubernetes-dashboard-amd64放在本地私有仓库,使用了本地私有长裤镜像库kubernetes-dashboard-amd64;还要注意别忘了配置apiserver-host否则dashboard将无法连接到kubernets集群;

Service

service用于配置dashboard的label selector;创建kube-dashboard-svc.yaml文件,内容如下:

apiVersion: v1 kind: Service metadata:   name: kubernetes-dashboard   namespace: kube-system   labels:     k8s-app: kubernetes-dashboard     kubernetes.io/cluster-service: "true" spec:   selector:     k8s-app: kubernetes-dashboard   ports:   - port: 80     targetPort: 9090

kubernates中创建dashboard应用

1、创建namespace

kubectl -s 192.168.2.143:8080 create -f namespace.yaml

2、创建replication Controller

kubectl -s 192.168.2.143:8080 create -f kube-dashboard-rc.yaml

3、创建service

kubectl -s 192.168.2.143:8080 create -f kube-dashboard-svc.yaml

查看dashboard启动情况

Kubernets搭建Kubernetes-dashboard

Kubernetes dashboard访问地址:http://192.168.2.143:8080/ui,注意这里的地址是master节点的地址;

Kubernets搭建Kubernetes-dashboard

参考资料:

http://kubernetes.io/docs/user-guide/

原文  http://www.solinx.co/archives/632
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