the pod to failure Is the cluster healthy 1 Are all software components working fine 2 How many failures occurred on the cluster SLIs on Large k8s Cluster 1. Cluster health state A combination value log Event The unhealthy node Monitoring Isolation Recover Degrade Data Analysis Failures/Machine Failures/Reason Report Lifecycle of Pod Failure Reason Target Kubelet Apiserver Scheduler

spread the pods in replication controllers or services across zones - to reduce the impact of zone failures How it works: • Kubernetes supports running a single cluster in multiple failure zones. • When

spread the pods in replication controllers or services across zones - to reduce the impact of zone failures How it works: • Kubernetes supports running a single cluster in multiple failure zones. • When

vSphere - NSX-T Integration - Harbor • Manages Cluster Day 2 - Scaling - Patching - Upgrades - Failures Kubernetes (As a Bosh Release) BOSH (Deploys/Manages VMs) CPI CNI Harbor Private Container

Tiller Application Application … Application API Helm Registry Helm Registry Application API Sync 多集群架构 谢谢大家！

Cloud-scale Nodeless Kubernetes Etcd Watch Pod, Service, Ingress resource change ECI Two-way sync of resources K8S resources CRUD K8S Client Elastic Container Instance Pod Viking agent Container

status Pipeline / Stage / Task Task Template Pipeline / Stage / Task build logs Version Control sync / watch clean history jobs Basic Concepts（partial） Repository Managed Project Pipeline / Stage

API Object Oriented Programming Core of API “OO” 1.API objects stores in etcd 2.Control loops (Sync Loop) to reconcile API objects Example kubelet SyncLoop kubelet SyncLoop proxy proxy 1 Pod

属于任何存储类） mountOptions: #挂载nfs的参数 - hard #如 ro, soft, hard, sync - nfsvers=4.1 nfs: #使用NFS存储 path: "/nfs-share" server:

28-动态⽔平扩容 130 Horizontal Pod Autoscaler被实现为⼀个控制回路，由Controller Manager的 --horizontal-pod-autoscaler-sync-period 标志（默认值为30秒）控制循环周期。 在每个周期内，Controller Manager根据每个HorizontalPodAutoscaler定义中指定的指标来查询资源利⽤。