All updates to Kubernetes are performed with zero downtime to running workloads. A complete rolling update of a 3-node cluster will take approximately 10 minutes. SUSE Rancher releases security updates Kubernetes audit log entries are useful for investigating suspicious API requests, collecting statistics or creating monitoring alerts for unwanted API calls. • Cluster self-service provisioning Kubernetes are available every three months. Therefore, a Kubernetes management platform should support rolling upgrades of clusters, such that the cluster and the cluster API are always available even while

understands • interfaces with the control plane for the management of routes • collects and exports statistics from the data plane The vRouter provides the packet send and receive function for the co-located CN2. The Contrail controller consists of Deployments and StatefulSets, which are configured for rolling updates. During the upgrade, the pods in each Deployment and StatefulSet are upgraded one at a time

.................................................................................... 6 1.3.8 Rolling Updates ........................................................................................ sections of book. 1.3.8 Rolling Updates Many applications cannot be taken down for updates for an extended period of time, and in some cases, cannot be taken down at all. Rolling updates ensure that repeating the process with another set of instances. Kubernetes supports rolling updates with the use of “deployment” and “rolling-update” abstractions. Deployments are a fairly recent addition to the project

--cert /etc/kubernetes/ssl/kube- node.pem --key /etc/kubernetes/ssl/kube-node-key.pem --name etcd-rolling-snapshots --endpoints=192.168.1.225:2379 -- retention=72h --creation=12h root 4643 4626 --cert /etc/kubernetes/ssl/kube- node.pem --key /etc/kubernetes/ssl/kube-node-key.pem --name etcd-rolling-snapshots --endpoints=192.168.1.225:2379 -- retention=72h --creation=12h root 4643 4626 --cert /etc/kubernetes/ssl/kube- node.pem --key /etc/kubernetes/ssl/kube-node-key.pem --name etcd-rolling-snapshots --endpoints=192.168.1.225:2379 -- retention=72h --creation=12h root 4643 4626

业解决方案。 © Copyright 2020 Rancher Labs. All Rights Reserved. Confidential 应用如何优雅关停 Kubernetes在做Rolling Update的时候默认会向旧的Pod发出一个SIGTERM信号，如果应用没有对SIGTERM信号做处理， 就会立即强制退出程序，此时会导致正在处理中的请求没有处理完就被错误的强制关闭，从而影响到业务。