Recommended
Recommended
More Related Content
What's hot
What's hot (20)
Similar to Need for scale, the serverless way
Similar to Need for scale, the serverless way (20)
Recently uploaded
Recently uploaded (20)
Need for scale, the serverless way
- 1. Need for scale, the serverless way Ahmed Nada Lead Consultant @readify a_nad a
- 2. Hi, I’m Ahmed… aka Nada history.com mygc.com.au a_nad a anadaz ahnada
- 3. Takeaways 1. Serverless option to scale Kubernetes and how it works. 2. Readiness for production @a_nad a
- 5. Azure Kubernetes Service (AKS) Master Node Worker Node Worker Node Azure Customer
- 6. ACI • Fast provisioning of containers. • Only pay per second for execution time. • No need to provision virtual machines. @a_nad a
- 10. How to enable Virtual Nodes?
- 12. az aks enable-addons --resource-group rg-azbc --name aks-azbc --addons virtual-node --subnet-name sbnt-virtual-node
- 13. Virtual Nodes Node A Virtual Node AKS Kubele t Proxy P P P ACI P P kubectl
- 14. Demo 1
- 15. Virtual Kubelet @a_nad a • Open source project started by Microsoft. • Donated to CNCF • Cloud providers support virtual-kubelet.io
- 16. Kubele t Is the primary “node agent” that runs on each node to manage pods.
- 17. Kubelet Node A Node B Master Node Kubele t Proxy P P P Kubele t Proxy P P scheduler api- server controller kubectl
- 18. Virtual Kubelet Node A Virtual Node AKS Kubele t Proxy P P P ACI P P kubectl
- 21. Providers • Alibaba Cloud Elastic Container Instance (ECI) • AWS Fargate • Azure Batch • Azure Container Instances (ACI) • Kubernetes Container Runtime Interface (CRI) • Huawei Cloud Container Instance (CCI) • HashiCorp Nomad • OpenStack Zun • vSphere Integrated Containers (VIC) @a_nad a
- 22. Assign Pods to Node • nodeSelector • Affinity and anti-affinity • Taints and Tolerations @a_nad a
- 23. kubectl taint nodes node1 os=linux:NoSchedule tolerations: - key: "os" operator: "Equal" value: "linux" effect: "NoSchedule" tolerations: - key: “virtual-kubelet" operator: “Exists" effect: "NoSchedule"
- 24. Demo 2
- 25. Windows-based containers • By joining Windows nodes to a Linux-based cluster, release of Kubernetes 1.14 • Using Virtual Kubelet @a_nad a
- 26. Demo 3
- 27. Is it ready for production?
- 28. Still a preview feature
- 29. Limitations • Liveness and readiness probes • VNet peering • Init containers • Host aliases support • DaemonSets will not deploy pods to the virtual node @a_nad a
- 30. Summary 1. Serverless option to scale Kubernetes. 2. Virtual Kubelet 3. Windows containers with AKS @a_nad a
- 31. Resources @a_nada • aka.ms/VirtualNode • github.com/virtual-kubelet • virtual-kubelet.io • Community #virtual-kubelet at slack.k8s.io • aka.ms/learnkubernetes
Editor's Notes
- I’m a lead consultant @ readify, I come from a development background. Before readify I used to work at Microsoft middle east. As a technical presales/ consultant
- question: are using k8s, prod? Control and automate deployments Self monitoring Self healing Runs everywhere independent of platform
- Feature is enabled in specfic regions AU east is one of them.
- **animation -deeper look into k8s and how VN works -connector running inside a pod on a worker node -registers as node -we get a new request to create a deployment, desired state, -connector provisions containers
- et-cd: distributed key-value store Desired state management - Calls the configured container runtime (Docker, Rkt, etc) to create, update, delete containers on the host. - Pulls images from the image registry associated with pods assigned to this node. - Creates and mounts volumes within a container Report pod logs controller manager is a daemon, a control loop is a non-terminating loop that regulates the state of the system.
- **animation -deeper look into k8s and how VN works -connector running inside a pod on a worker node -registers as node -we get a new request to create a deployment, desired state, -connector provisions containers
- -nodeSelector simplest | field of PodSpec. It specifies a map of key-value pairs. -nodeSelector will be deprecated -Affinity and anti-affinity you can constrain against labels on other pods running on the node
- Dedicated nodes Special hardware New feature to evict nodes
- Virtual Nodes only support linux containers at this time.
- gather feedback and bugs from our community. Cluster is unsupported until the feature is no longer in preview and graduates to general availability (GA).
- Daemonset deployments ensures pod running on all nodes, are not handled by schedule