Kubernetes系列之三:部署你的第一個應用程式到k8s叢集
阿新 • • 發佈:2018-11-17
部署你的第一個應用程式到k8s叢集
看到這裡,求知慾飢渴難耐的你一定在想,怎麼部署的我們應用程式到叢集裡面去呢?來個簡單的,只需要兩步:(這裡本文使用nginx映象當我們的應用程式,因為nginx 簡單,執行起來後直接可以用瀏覽器訪問網頁了。)
第一步:在master 節點上建立一個deployment
kubectl create deployment nginx --image=nginx
效果如下,可以看到一個叫nginx的deployment建立成功了。
[email protected]:/home/cong# kubectl create deployment nginx --image=nginx
deployment.apps/nginx created
[email protected]:/home/cong# kubectl get deployments
NAME DESIRED CURRENT UP-TO-DATE AVAILABLE AGE
nginx 1 1 1 1 11m
第二步:建立一個service
kubectl create service nodeport nginx --tcp 80:80
效果如下,可以看到一個叫nginx的service建立成功了,這裡kubectl get svc是kubectl get services的簡寫。
[email protected]:/home/cong# kubectl create service nodeport nginx --tcp 80:80 service/nginx created [email protected]:/home/cong# kubectl get svc NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE kubernetes ClusterIP 10.96.0.1 <none> 443/TCP 3d nginx NodePort 10.107.237.157 <none> 80:30601/TCP 11s
在slave節點上執行下面的命令驗證一下nginx有沒有部署成功。
curl localhost:30601
或者
curl kube-slave:30601
效果如下:
[email protected]:/home/cong# curl localhost:30601
<!DOCTYPE html>
<html>
<head>
<title>Welcome to nginx!</title>
<style>
body {
width: 35em;
margin: 0 auto;
font-family: Tahoma, Verdana, Arial, sans-serif;
}
</style>
</head>
<body>
<h1>Welcome to nginx!</h1>
<p>If you see this page, the nginx web server is successfully installed and
working. Further configuration is required.</p>
<p>For online documentation and support please refer to
<a href="http://nginx.org/">nginx.org</a>.<br/>
Commercial support is available at
<a href="http://nginx.com/">nginx.com</a>.</p>
<p><em>Thank you for using nginx.</em></p>
</body>
</html>
用瀏覽器開啟試試,nginx的首頁顯示出來了。
簡單吧,是不是信心大增了?!
為了練習更多複雜的命令,我們將上面建好的deployments/nginx, services/nginx 刪除先,命令如下:
[email protected]:/home/cong# kubectl delete deployments/nginx services/nginx
deployment.extensions "nginx" deleted
service "nginx" deleted
好了,你應用程式部署的處女作就完美結束了
作者:wucong60
來源:CSDN
原文:https://blog.csdn.net/wucong60/article/details/81458409
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