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> 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
https://images2015.cnblogs.com/blog/84976/201607/84976-20160716112334451-64911222.png
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；
https://images2015.cnblogs.com/blog/84976/201607/84976-20160716112353982-1619768713.png
参考资料：
http://kubernetes.io/docs/user-guide/
文章首发地址：Solinx
http://www.solinx.co/archives/632
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