building, evolving and operating rapidly-changing resilient systems at scale” (Jez Humble) • Applying Agile practices to operations • Infrastructure as code • Ops teams embracing source control (git) • Automated Containers Demo: Serving the Model with TF Serving • Options for serving • Wrap model in a web framework (eg – Flask) • Tensorflow Serving • Seldon Demo: Run TensorFlow Training with Kubeflow

Support HPA, CronHPA, VWA (Vertical Workload Autoscaler) Ø Keep share memory during Pod upgrade Ø Scaled Up with LGV (Last Good Version) Ø Per Pod Per PV Ø Per Workload Per PV Ø Pod Auto Migrate when offline tasks. Key Features: Ø In-Place Update without restarting container Ø High-performance Ø Safe autoscaling decisions Ø Personalized configuration of VWA objects Ø Cooperate with HPA through

programming • CustomResourceDefinition (CRD) • Built on Kubernetes APIs • Kubernetes repo support • Agile, flexible and convenient Node-Operator: Overview • User: SREs who can scale & offline Nodes through

Cloud “Serverless”/ FaaS On-premise Middleware / PaaS ● ● Cloud Native Hybrid ● ● ● Up Agile Portable Elastic Transform Efficient Secure Pay for use Out ● ● Migrate Move up, out or both

The digital solutions group at Booz Allen quickly recognized Ku- bernetes’ ability to drive a more agile, cloud native and microservices-centric strategy, in solving the most complex of infrastruc- ture

ScalingReplicaSet Scaled up replica set nginx-deployment-2035384211 to 3 23s 23s 1 {deployment-controller } Normal ScalingReplicaSet Scaled up replica set ScalingReplicaSet Scaled down replica set nginx-deployment-2035384211 to 2 23s 23s 1 {deployment-controller } Normal ScalingReplicaSet Scaled up replica set ScalingReplicaSet Scaled down replica set nginx-deployment-2035384211 to 0 21s 21s 1 {deployment-controller } Normal ScalingReplicaSet Scaled up replica set

rollout of new versions of Pods Singletons A single instance of a Pod which is not replicated or scaled 19 Developers Admin Kubernetes & PKS $kubectl create –f App.yaml The “App” Kubernetes Cluster

過執行下面的命令將 redis-slave RC 控制的 Pod 抄本數量從初始的 2 更新為 3： $ kubectl scale rc redis-slave --replicas=3 scaled 4-52 Kubernetes 維運指南 4 kubernetes.io/name: "KubeUI" spec: selector: k8s-app: kube-ui

html Key rotation “Keys are analogous to the combination of a safe. If a safe combination is known to an adversary, the strongest safe provides no security against penetration. Similarly, poor key