本文详细介绍如何使用Kubernetes部署HTTP应用，包括创建Deployment、运行Pods以及调度策略。通过实例演示了从请求发送到API Server，通知Controller Manager创建资源，再到Scheduler分配Pods至节点的全过程。
deploy app on my k8s cluster:
deployed the deployment httpd-app,two Pods
kubectl run httpd-app --image=httpd --replicas=2
kubectl get deployment
kubectl get pod -o wide
Master:
Node1:
Node2:
1.kubectl sends deployment request to API Server
2.API Server notifies Controller Manager to create deployment resource.
3.Scheduler executes schedule task to send two Pods to node1 and node2.
4.node1 and node2 's kubelet creates and run Pod
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