安装和配置kubedns插件

1、配置文件准备

下载官方的yaml文件目录：kubernetes/cluster/addons/dns。该插件直接使用kubernetes部署,yaml文件经过修改完成部署

# git clone https://github.com/xxlaila/kubernetes-yaml.git
# cd kubernetes-yaml/coredns
# sed -i 's/10.96.0.10/10.254.0.2/g' coredns-service.yaml
# kubectl create -f ./
# kubectl get pods,svc,rs -n kube-system
NAME                           READY   STATUS    RESTARTS   AGE
pod/coredns-68676b6b88-l7b5g   1/1     Running   0          16m

NAME              TYPE        CLUSTER-IP   EXTERNAL-IP   PORT(S)         AGE
service/coredns   ClusterIP   10.254.0.2   <none>        53/UDP,53/TCP   16m

NAME                                       DESIRED   CURRENT   READY   AGE
replicaset.extensions/coredns-68676b6b88   1         1         1       16m

# kubectl get pods -o wide -n kube-system
NAME                                    READY   STATUS    RESTARTS   AGE     IP            NODE            NOMINATED NODE   READINESS GATES
coredns-68676b6b88-l7b5g                1/1     Running   0          40m     10.254.28.2   172.21.16.248   <none>           <none>

2、安装和配置dashboard

官方配置文件kubernetes/cluster/addons/dashboard，这里已经修改过了，经过测试部署，直接进入dashboard目录，修改inages参数进行部署

2.1、安装dashboard

# cd ../kubernetes-dashboard
# kubectl create -f kubernetes-dashboard.yaml 
secret/kubernetes-dashboard-certs created
serviceaccount/kubernetes-dashboard created
role.rbac.authorization.k8s.io/kubernetes-dashboard-minimal created
rolebinding.rbac.authorization.k8s.io/kubernetes-dashboard-minimal created
deployment.apps/kubernetes-dashboard created
service/kubernetes-dashboard created
# kubectl get pods -o wide -n kube-system
NAME                                    READY   STATUS    RESTARTS   AGE     IP            NODE            NOMINATED NODE   READINESS GATES
kubernetes-dashboard-6c655d9445-4557x   1/1     Running   0          6m54s   10.254.90.2   172.21.16.110   <none>           <none>

2.2、配置账户授权

# kubectl create -f admin-user.yaml 
serviceaccount/admin created
clusterrolebinding.rbac.authorization.k8s.io/admin created
# kubectl describe serviceaccount admin -n kube-system
Name:                admin
Namespace:           kube-system
Labels:              k8s-app=kubernetes-dashboard
Annotations:         <none>
Image pull secrets:  <none>
Mountable secrets:   admin-token-wwjw8
Tokens:              admin-token-wwjw8
Events:              <none>
# kubectl describe secret admin-token-wwjw8 -n kube-system
在浏览器访问任意节点IP地址http://<node_ip>:30001

3、监控安装

# cd ../heapster-influxdb-grafana
# kubectl create -f ./
# kubectl get pods -o wide -n kube-system
NAME                                    READY   STATUS    RESTARTS   AGE   IP            NODE            NOMINATED NODE   READINESS GATES
heapster-658646db69-lh5tx               1/1     Running   0          11m   10.254.28.3   172.21.16.248   <none>           <none>
monitoring-grafana-7bfc56ffcd-kgh56     1/1     Running   0          11m   10.254.90.3   172.21.16.110   <none>           <none>
monitoring-influxdb-7478d7675c-9255v    1/1     Running   0          11m   10.254.85.2   172.21.16.244   <none>           <none>

这里遇到一个怪事情；heapster安装以后图始终无法出来，这里折腾差不多大半天。最后在dashboard的yaml文件里面添加了以下参数，图就可以了，