.spec.strategy.type==Recreate时,在创建出新的Pod之前会先杀掉所有已存在的Pod。 Rolling Update Deployment .spec.strategy.type==RollingUpdate时,Deployment使用rolling update 的方式更新Pod 。你可以指定maxUnavailable 和maxSurge 来控制 rolling update 进程。 Max Unavailable .spec.strategy.rollingUpdate.maxUnavaila...
1、在应用程序中我们有两类,一种是有状态一种是无状态。此前一直演示的是deployment管理的应用,比如nginx或者我们自己定义的myapp它们都属于无状态应用。 2、而对于有状态应用,比如redis,mysql,还有etcd,还有zookeeper等等需要存数据的都属于有状态。它们不光有所谓的节点之分,每一个对应的pod还有角色之分,有的是主...
Before you implement a Kubernetes deployment strategy, you’ll need to understand the pieces of a Kubernetes deployment and how they all function together.What’s in a Kubernetes deployment YAML file The desired state for your Kubernetes cluster—the configuration of Pods—that you describe, whic...
10m 10m 1 {deployment-controller } Normal ScalingReplicaSet Scaled down replica set nginx-deployment-4087004473 to 0 Rollover(多个rollout并行)的说明: 假如您创建了一个有5个niginx:1.7.9 replica的 Deployment,但是当还只有3个nginx:1.7.9的 replica 创建出来的时候您就开始更新含有5个nginx:1.9.1 replica ...
3、Deployment的更新策略 [root@node01~]# kubectl explain deploy.spec.strategy KIND:Deployment VERSION:extensions/v1beta1 RESOURCE:strategy<Object>DESCRIPTION:The deployment strategy to use to replace existing podswithnewones.DeploymentStrategy describes how to replace existing podswithnewones.FIELDS:rolling...
Kubernetes源码解析之controller-manager deployment同步流程,基本使用1简单的yaml文件在K8s集群上可使用Kubectl命令以指定文件方式创建一个kind=Deployment的资源对象$kubectlcreate-fnginx.yamlapiVersion:apps/v1beta1kind:Deploymentmetadata:...
Kubernetes Deployement Strategy Type of deployment Recreate RollingUpdate .spec.strategy specifies the strategy used to replace old Pods by new ones. .spec.strategy.type can be “Recreate” or “RollingUpdate”. “RollingUpdate” is the default value ...
另外,资源对象(Resource Object)在 Kubernetes 中也是一个常用概念,由“资源组+资源版本+资源种类”组成,并在实例化后表达一个资源对象,例如 Department 资源实例化后拥有资源组、资源版本以及资源种类,其表现形式为 <group>/<version>,Kind=<kind>,例如 apps/v1,Kind=Deployment。 每一个资源都拥有一定数量的资源...
2. Declarative Deployment Problem: with agrowing numberofmicroservices,continually updating and replacingthem withnewerversionsbecomes an increasingburdentoo. Upgrading a service to a next version involves activities such asstartingthenew version of the Pod,stoppingtheold versionof aPod gracefully,waiting an...
kind: Deployment metadata: labels: k8s-app: metrics-server name: metrics-server namespace: kube-system spec: selector: matchLabels: k8s-app: metrics-server strategy: rollingUpdate: maxUnavailable: 0 template: metadata: labels: k8s-app: metrics-server ...