接上文:在centos7上安装和配置Kubernetes
下载kube-ui镜像并导入
谷歌的镜像地址被墙了,无法pull拉取镜像,只能手动下载。
在每个minion上导入镜像:
docker load kube-ui_v3.tar
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创建kube-system namespace
创建kube-system.json,内容如下:
# vim kube-system.json
{ "kind": "Namespace", "apiVersion": "v1", "metadata": { "name": "kube-system" } }
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运行以下命令创建namespace
# kubectl create -f kube-system.json # kubectl get namespace NAME LABELS STATUS default none Active kube-system none Active
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创建rc
- 创建kube-ui-rc.yaml 文件,并写入一下内容
apiVersion: v1 kind: ReplicationController metadata: name: kube-ui-v3 namespace: kube-system labels: k8s-app: kube-ui version: v3 kubernetes.io/cluster-service: "true" spec: replicas: 3 selector: k8s-app: kube-ui version: v3 template: metadata: labels: k8s-app: kube-ui version: v3 kubernetes.io/cluster-service: "true" spec: containers: - name: kube-ui image: gcr.io/google_containers/kube-ui:v3 resources: limits: cpu: 100m memory: 50Mi ports: - containerPort: 8080 livenessProbe: httpGet: path: / port: 8080 initialDelaySeconds: 30 timeoutSeconds: 5
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- 运行一下命令创建rc,并查看
NAMESPACE CONTROLLER CONTAINER(S) IMAGE(S) SELECTOR REPLICAS kube-system kube-ui-v3 kube-ui gcr.io/google_containers/kube-ui:v3 k8s-app=kube-ui,version=v3 3
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创建service
- 创建 kube-ui-svc.yaml 文件,并写入以下内容
apiVersion: v1 kind: Service metadata: name: kube-ui namespace: kube-system labels: k8s-app: kube-ui kubernetes.io/cluster-service: "true" kubernetes.io/name: "KubeUI" spec: selector: k8s-app: kube-ui ports: - port: 80 targetPort: 8080
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- 运行以下命令创建service,并查看service 和 pods
NAMESPACE CONTROLLER CONTAINER(S) IMAGE(S) SELECTOR REPLICAS kube-system kube-ui-v3 kube-ui gcr.io/google_containers/kube-ui:v3 k8s-app=kube-ui,version=v3 3 NAMESPACE NAME READY STATUS RESTARTS AGE kube-system kube-ui-v3-0zyjp 1/1 Running 0 21h kube-system kube-ui-v3-6s1d0 1/1 Running 0 21h kube-system kube-ui-v3-i0uqs 1/1 Running 0 21h
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可以看到kube-ui服务已经成功创建,运行3个副本
master配置flannel网络,与minion连通
- master安装flannel,并启动
# yum install flannel -y # systemctl enable flanneld # systemctl start flanneld
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- 访问kube-ui
访问 http://master_ip:8080/ui/ 会自动跳转 http://kube-ui:8080/api/v1/proxy/namespaces/kube-system/services/kube-ui/#/dashboard/ 即可访问kube-ui的dashboard 页面,如下图所示:
![image]()
可以查看minion的系统信息,pods,RC,services等信息