kubernetes-dashboard-namespace搭建六

dashboard的安装和部署

wget https://www.qstack.com.cn/dashboard.zip
unzip dashboard.zip

[root@k8s-master dashboard]# docker load -i kubernetes-dashboard-amd64_v1.4.1.tar.gz

[root@k8s-master dashboard]# docker tag index.tenxcloud.com/google_containers/kubernetes-dashboard-amd64:v1.4.1 192.168.23.146:5000/index.tenxcloud.com/google_containers/kubernetes-dashboard-amd64:v1.4.1 

[root@k8s-master dashboard]# docker push 192.168.23.146:5000/index.tenxcloud.com/google_containers/kubernetes-dashboard-amd64:v1.4.1

更改配置文件：dashboard-deploy.yaml

[root@k8s-master dashboard]# cat dashboard-svc.yaml 
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   #vip的端口
    targetPort: 9090  #容器的端口

[root@k8s-master dashboard]# kubectl create -f dashboard-deploy.yaml

[root@k8s-master dashboard]# kubectl create -f dashboard-svc.yaml

[root@k8s-master dashboard]# kubectl get all -o wide --namespace=kube-system  #由于dashboard-deploy和svc都是在kube-system的namespace下创建的，所以查询的时候要加--namespace=kube-system，否则不加查的都是命名空间为default下的资源

访问方式：192.168.23.146:8080 #先看下api-server的

192.168.23.146:8080/ui/

[root@k8s-master dashboard]# curl 192.168.23.146:8080/api
{
  "kind": "APIVersions",
  "versions": [
    "v1"
  ],
  "serverAddressByClientCIDRs": [
    {
      "clientCIDR": "0.0.0.0/0",
      "serverAddress": "192.168.23.146:6443"
    }
  ]
}[root@k8s-master dashboard]# 

root@k8s-master dashboard]# curl 192.168.23.146:8080/api/v1 | more -10
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100  3711    0  3711    0     0  98696      0 --:--:-- --:--:-- --:--:--  100k
{
  "kind": "APIResourceList",
  "groupVersion": "v1",
  "resources": [
    {
      "name": "bindings",
      "namespaced": true,
      "kind": "Binding"
    },
    {
      "name": "componentstatuses",
      "namespaced": false,
      "kind": "ComponentStatus"
    },
    {
      "name": "configmaps",
      "namespaced": true,

[root@k8s-master dashboard]# curl 192.168.23.146:8080/api/v1/pods

[root@k8s-master dashboard]# curl 192.168.23.146:8080/api/v1/services

namespace的作用：

例如在华为云和阿里云你买了一个账号，账号之间资源就是彼此隔离的，只能看到自己租户下的资源
Namespace（命名空间）是Kubernetes系统中的另一个非常重要的概念，Namespace在很多情况下用于实现多租户的资源隔离

创建namespace
[root@k8s-master ~]#kubectl create namespace namespace的名字
namespace "*" created

查看namespace
[root@k8s-master ~]#kubectl get namespace
NAME STATUS AGE
default Active 8d
kube-system Active 8d

删除namespace
[root@k8s-master ~]#kubectl delete namespace namespace的名字
namespace "*" deleted
注：特别危险！会删除namespace下所有的k8s资源

kubectl get all --all-namespaces #查看所有namespace下的所有资源

[root@k8s-master namespace]# vi nginx-rc.yaml
apiVersion: v1
kind: ReplicationController
metadata:
  name: myweb
  namespace: qiangge
spec:
  replicas: 2
……
[root@k8s-master namespace]# vi nginx-svc.yaml 
apiVersion: v1
kind: Service
metadata:
  name: test
  namespace: qiangge
spec:
  type: NodePort