Create a Kubernetes-dashboard

Create a Kubernetes-dashboard

In the previous article (SEE), deploy the Kubernetes-dashboard Based on the deployed kubernetes. It is an official user management Kubernets cluster visualization tool; deploying a dashboard is the same as deploying other applications in kubernets. Just create the Replication Controller and Service services required by the dashboard;

Note that the Overlay Network of Kubernets should work properly. Each node has started Flannel, And the subnet provided by Flannel is configured during docker startup, or other methods are used to ensure the connectivity between containers, otherwise, the dashboard will not work properly;

Namespace

You can also use the default Namespace. Because the dashboard is a system application, you can use Namespace to isolate the dashboard from other apps. We recommend that you use Namespace in the formal online Kubernetes environment;
Create a kube-namespace.yaml file with the following content:

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

Replication Controller

Replication Controller is used to ensure that the expected pod status is consistent with the current status, and the number of pods can be elastically scaled. This mainly ensures the normal operation of the dashboard;
Create a kube-dashboard-rc.yaml file with the following content:

apiVersion: v1kind: ReplicationControllermetadata:# Keep the name in sync with image version and# gce/coreos/kube-manifests/addons/dashboard counterpartsname: kubernetes-dashboard-latestnamespace: kube-systemlabels:  k8s-app: kubernetes-dashboardversion: latestkubernetes.io/cluster-service: "true"spec:  replicas: 1selector:  k8s-app: kubernetes-dashboardtemplate:  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        

Because the kubernetes-dashboard-amd64 is going to be walled, it's down here;

Service

Service is used to configure the label selector of the dashboard;
Create a kube-dashboard-svc.yaml file with the following content:

apiVersion: v1kind: Servicemetadata:  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  

Create a dashboard application in kubernates

1. Create a namespace

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

2. Create a replication Controller

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

3. Create a service

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

View dashboard startup status

Kubernetes dashboard access address: http: // 192.168.2.143: 8080/ui note that the address here is the address of the master node;

Kubernetes cluster deployment

OpenStack, Kubernetes, and Mesos

Problems encountered during Kubernetes cluster construction and Solutions

For details about Kubernetes, click here
Kubernetes: click here

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