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20：告诉Kubernetes在更新每个副本后要等待20秒。"}),"\n"]}),"\n",e(a,{type:"info",children:n(c.p,{children:[e(c.strong,{children:"提示："}),"\nKubernetes实际上没有更新副本，它所做的是删除现有的副本，并用一个运行新版本的全新副本来代替它们"]})}),"\n",n(c.ul,{children:["\n",e(c.li,{children:"更新类型为RollingUpdate：以滚动更新的方式执行对此Deployment的所有更新"}),"\n",e(c.li,{children:"第14行和第15行强制Kubernetes一次更新一个Pod，运行机制是：第14行中maxSurge=1允许Kubernetes在更新操作中增加一个额外的Pod，期望状态需要5个Pod，所以Kubernetes可以在更新期间将其增加到6个；第15行中maxUnavailable=0防止Kubernetes在更新期间减少Pod的数量，期望状态还是需要5个Pod，所以Kubernetes不允许比这更少。结合起来，第14行和第15行迫使Kubernetes删除运行旧版本的副本的同时增加运行新版本的第六个副本。这个过程一直重复，直到5个副本全都在运行需要的版本。"}),"\n"]}),"\n",e(c.p,{children:"当更新完毕deploy.yml后可以使用apply命令进行部署，然后使用如下命令进行监听"}),"\n",e(c.figure,{"data-rehype-pretty-code-figure":"",children:e(c.pre,{style:{backgroundColor:"#24292e",color:"#e1e4e8"},tabIndex:"0","data-language":"shell","data-theme":"github-dark",children:n(c.code,{"data-language":"shell","data-theme":"github-dark",style:{display:"grid"},children:[n(c.span,{"data-line":"",children:[e(c.span,{style:{color:"#B392F0"},children:"$"}),e(c.span,{style:{color:"#9ECBFF"},children:" 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Kubernetes

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